Solar Weather - Space Forecast
Aurora Forecast & Sun Monitor
Only for iPhone
$3.99
Solar flare animations, Kp index, aurora forecasts — all in real time from NOAA and NASA data, in a beautiful and intuitive interface!
Track real-time solar activity and get accurate space weather forecasts with Solar Weather.
From Sun animations to aurora predictions — professional observatory data, designed to be easy to read and use.
What's happening on the Sun right now?
- Live UV solar animations across 7 wavelengths — from surface details to violent flare regions
- Coronagraph views: GOES-19 (CCOR-1), LASCO C2 and C3 — watch coronal mass ejections unfold from different distances
- Swipe through 24-hour solar animations almost minute by minute — full manual control over Sun, Aurora, and Coronagraph views
- Export any animation as a shareable video
Will there be an aurora tonight?
- Aurora map showing real-time intensity and coverage for both hemispheres
- 1-hour aurora visibility forecast based on current solar activity
- Kp index: 3-day forecast, 1-week history, and a combined real-time graph
- Solar Wind Speed, Magnetic Field Bt & Bz — the key indicators that trigger geomagnetic storms
- When Bz goes negative, aurora chances spike — and the app helps you spot it
Never miss a space weather event:
- Push notifications for Geomagnetic storms, Solar Radiation storms, and Radio Blackouts
- Set your own alert thresholds — only get notified for the storm levels that matter to you
- Geomagnetic and Radiation storm forecasts up to 3 days ahead
- Daily solar activity index (10.7 cm Radio Flux)
- Home Screen and Lock Screen widgets with real-time data
Explore the Sun in detail:
- Hot Flares: the most intense solar eruptions captured in extreme ultraviolet
- Solar Corona: the Sun's outer atmosphere — millions of degrees hot, rarely seen up close
- Active Regions: areas of powerful magnetic activity where flares and CMEs originate
- Transition Zone: the dynamic boundary between the chromosphere and corona
- Chromosphere: the Sun's colorful middle layer, visible during eclipses
- Surface: sunspots, granulation, and intricate magnetic patterns
Built for space enthusiasts, amateur astronomers, and anyone curious about the Sun. Solar Weather pulls data directly from NOAA and NASA to give you an accurate, up-to-date picture of solar activity and its impact on Earth.
more Normally during quiet solar events, this application function very well. BUT durian this recent solar extensive activities during the weeks from January 5 2026 to present January 20, 2026 this application freezes, frequently crash back to the device main page, all frustrating from any features selected in this app.UNRELIABLE!
Developer Response Thank you for your feedback and I sincerely apologize. The crashes were caused by a memory management issue that appeared after increased the resolution and amount of imagery in data feeds. The app wasn't handling this larger dataset efficiently, which led to crashes (actually it was termination by iOS, not a real crash) regardless of solar activity levels.I've just released version 1.12.2 which includes a complete rewrite of the memory management system. Please update to the latest version — the app should now work smoothly.I truly appreciate your patience and honest feedback. It helps me make Solar Weather better for everyone.
Normally during quiet solar events, this application function very well. BUT durian this recent solar extensive activities during the weeks from January 5 2026 to present January 20, 2026 this application freezes, frequently crash back to the device main page, all frustrating from any features selected in this app.UNRELIABLE!
Thank you for your feedback and I sincerely apologize. The crashes were caused by a memory management issue that appeared after increased the resolution and amount of imagery in data feeds. The app wasn't handling this larger dataset efficiently, which led to crashes (actually it was termination by iOS, not a real crash) regardless of solar activity levels.I've just released version 1.12.2 which includes a complete rewrite of the memory management system. Please update to the latest version — the app should now work smoothly.I truly appreciate your patience and honest feedback. It helps me make Solar Weather better for everyone.
I really like the interface. It’s convenient. But the data is lagging.
Developer Response Sometimes during high demand (when a major solar event is happening), some data from NASA and JPL services can be a laggy. That's unfortunately true. I have a few ideas on how to improve this and I'll try to implement these features in the next major release. Thanks for your feedback.
I really like the interface. It’s convenient. But the data is lagging.
Sometimes during high demand (when a major solar event is happening), some data from NASA and JPL services can be a laggy. That's unfortunately true. I have a few ideas on how to improve this and I'll try to implement these features in the next major release. Thanks for your feedback.
Thanks for using Solar Weather!
Update v1.13.3:
- Fixed notifications
1.13.3 Jul 13
Thanks for using Solar Weather!
Update v1.13.2:
- Fixed Kp-index chart
- Parser improvements
Update v1.13.1:
- Fixed Solar Wind Speed, Bt & Bz magnetic fields, and Noon 10.7cm Radio Flux
not displaying correctly after a provider-side format change
- Fixed Kp-index display broken by the same issue
- Fixed widgets not updating with current solar wind data
- Switched to a more flexible data parser so format changes like this
won't cause problems in the future
- General stability improvements
Update v1.13.0:
- Added Solar Wind Speed — real-time solar wind velocity used in aurora and storm forecasting
- Added Solar Wind Magnetic Fields: Bt (total field strength) and Bz (north-south component) — negative Bz is one of the strongest signs a geomagnetic storm is coming
- Added Noon 10.7cm Radio Flux — daily solar activity index
- Fixed repeated animation loading when a previous download was interrupted
- Reduced unnecessary network requests and data usage
- UI and stability improvements
1.13.2 Apr 17
Thanks for using Solar Weather!
Update v1.13.1:
- Fixed Solar Wind Speed, Bt & Bz magnetic fields, and Noon 10.7cm Radio Flux
not displaying correctly after a provider-side format change
- Fixed Kp-index display broken by the same issue
- Fixed widgets not updating with current solar wind data
- Switched to a more flexible data parser so format changes like this
won't cause problems in the future
- General stability improvements
Update v1.13.0:
- Added Solar Wind Speed — real-time solar wind velocity used in aurora and storm forecasting
- Added Solar Wind Magnetic Fields: Bt (total field strength) and Bz (north-south component) — negative Bz is one of the strongest signs a geomagnetic storm is coming
- Added Noon 10.7cm Radio Flux — daily solar activity index
- Fixed repeated animation loading when a previous download was interrupted
- Reduced unnecessary network requests and data usage
- UI and stability improvements
1.13.1 Apr 1
Thanks for using Solar Weather!
This update brings new real-time solar wind data — helping you better predict aurora activity and track space weather conditions
Update v1.13.0:
- Added Solar Wind Speed — real-time solar wind velocity used in aurora and storm forecasting
- Added Solar Wind Magnetic Fields: Bt (total field strength) and Bz (north-south component) — negative Bz is one of the strongest signs a geomagnetic storm is coming
- Added Noon 10.7cm Radio Flux — daily solar activity index
- Fixed repeated animation loading when a previous download was interrupted
- Reduced unnecessary network requests and data usage
- UI and stability improvements
1.13.0 Feb 23
Thanks for using Solar Weather!
I know the recent app crashes have been frustrating. With this update, I've completely rebuilt how animations are handled in memory — no more unexpected terminations.
Thank you for your patience, your support means a lot!
Update v1.12.3:
- Fixed SUVI (Solar Ultraviolet Imager) widget
Update v1.12.2:
- Fixed critical memory issue causing app termination by iOS
- Complete new cache workflow for solar, aurora, and coronagraph animations
- Improved stability on devices with limited RAM
- Optimized background memory cleanup
---------------------------
Update v1.12.1:
- Fix Kp-index forecast for Widgets and App
Update v1.12.0:
- New 94 Å (Flaring Regions) solar filter for advanced activity observation
- Full 24-hour solar animation support with optimized performance
- Improved solar animation loading speed
- Fixed animation cache management issues
- Optimized memory usage for older devices
- Minor UI improvements
1.12.3 Jan 25
Thanks for using Solar Weather!
I know the recent app crashes have been frustrating. With this update, I've completely rebuilt how animations are handled in memory — no more unexpected terminations.
Thank you for your patience, your support means a lot!
Update v1.12.2:
- Fixed critical memory issue causing app termination by iOS
- Complete new cache workflow for solar, aurora, and coronagraph animations
- Improved stability on devices with limited RAM
- Optimized background memory cleanup
---------------------------
Update v1.12.1:
- Fix Kp-index forecast for Widgets and App
Update v1.12.0:
- New 94 Å (Flaring Regions) solar filter for advanced activity observation
- Full 24-hour solar animation support with optimized performance
- Improved solar animation loading speed
- Fixed animation cache management issues
- Optimized memory usage for older devices
- Minor UI improvements
1.12.2 Jan 20
Update v1.12.1:
- Fix Kp-index forecast for Widgets and App
Update v1.12.0:
- New 94 Å (Flaring Regions) solar filter for advanced activity observation
- Full 24-hour solar animation support with optimized performance
- Improved solar animation loading speed
- Fixed animation cache management issues
- Optimized memory usage for older devices
- Minor UI improvements
1.12.1 12/17/2025
Update v1.12.0:
- New 94 Å (Flaring Regions) solar filter for advanced activity observation
- Full 24-hour solar animation support with optimized performance
- Improved solar animation loading speed
- Fixed animation cache management issues
- Optimized memory usage for older devices
- Minor UI improvements
1.12.0 12/06/2025
Update v1.11:
- Optimized UI architecture for stunning Liquid Glass visual effects support
- Fixed white map display issues when using light appearance mode
- Enhanced widget performance and rendering optimization
- Refined UI animations and transitions for smoother user experience
- Minor visual improvements and interface polish
1.11 09/29/2025
Update v1.10:
- Added exclusive new CCOR-1 Coronagraph imagery for monitoring solar activity
- Enhanced visualization of coronal mass ejections (CMEs) and solar wind patterns
- Fixed issues with coronagraph widgets for improved reliability
- Improved animation loading stability across all views
- Optimized UI responsiveness and visual effects
- Enhanced haptic feedback for better interaction experience
- Multiple performance improvements for smoother operation
- Fixed minor bugs and enhanced overall app stability
1.10 04/28/2025
Update v1.9:
- Added interactive effects when tapping on screen elements
- Implemented haptic feedback for enhanced user experience
- Multiple UI improvements and optimizations
- Refined user interface elements and layouts for better visual consistency
- Improved navigation and transitions between screens
- Enhanced accessibility features for better usability
- Optimized performance on older devices
- Fixed compass position on the Aurora map
- Fixed minor bugs and improved overall app stability
1.9 04/01/2025
Update v1.8:
- Added real-time Aurora viewing probability for current location on the Aurora Forecast Map
- Enhanced UI design for more comfortable data visualization
- Optimized performance for real-time data processing
- Added additional loading indicators for better user experience
- Fixed minor bugs and improved app stability
1.8 02/24/2025
Update v1.7:
- New interactive Aurora Forecast Map with real-time probability visualization
- Redesigned Kp-index graph combining current measurements with forecast data
- Improved 3-hour time interval display for better readability of geomagnetic data
- Enhanced data loading reliability with advanced error handling
- Added fallback options for cases when specific data sources are unavailable
- Various stability improvements and performance optimizations
1.7 01/30/2025
Update v1.6.1:
- Enhanced notification reliability and delivery system after app reinstallation
- Added settings synchronization status indicator
- LASCO Coronagraph widget compatibility for older iOS versions
Also new in v1.6:
- Added timestamp display during frame-by-frame playback in SUVI Animations
- Time information shown in local timezone for better context
- Integrated with exclusive Time Control feature
- Updated time display format for solar event updates to show in user's local timezone
- Fixed UTC to local time conversion for 12-hour time format in solar events
- Corrected timestamp display issues in SUVI animation viewer
- Resolved time zone inconsistencies in event update timestamps
- Various minor bug fixes and stability improvements
1.6.1 01/07/2025
Thanks for your support! Merry Christmas and Happy New Year!
New Features v1.6: Time Display in SUVI Animations:
- Added timestamp display during frame-by-frame playback
- Time information shown in local timezone for better context
- Integrated with exclusive time control feature
Improvements v1.6:
- Updated time display format for solar event updates to show in user's local timezone
- Enhanced user experience with more intuitive time representation
- Optimized timestamp visibility during SUVI animation playback
- Improved time format handling across the app
Fixes v1.6:
- Fixed UTC to local time conversion for 12-hour time format in solar events
- Corrected timestamp display issues in SUVI animation viewer
- Resolved time zone inconsistencies in event update timestamps
- Various minor bug fixes and stability improvements
1.6 12/06/2024
New Features v1.5:
Push Notifications: Stay informed about solar events with customizable alerts
• Get notified about Geomagnetic storms (G1-G4+)
• Track Solar radiation storms (S1-S4+)
• Monitor Radio blackouts (R1-R4+)
• Set minimum alert levels for each type of event
Enhanced Kp Index Visualization: Completely redesigned graph interface in app and widgets
• Improved readability and data presentation
• Better time format handling for all regional settings
• More accurate forecast with higher update frequency
• Optimized for both 12h and 24h time formats
Improvements v1.5:
• Updated forecast data source for more frequent updates and enhanced accuracy
• Enhanced time format compatibility across all app features
• Optimized LASCO animation playback for all time format settings
• Refined time display in Kp index graph for better visibility
• General performance and stability improvements
Fixes v1.5:
• Corrected LASCO animation playback issues for 12-hour time format users
• Fixed time display overflow in Kp index graph for various time formats
• Resolved Daylight Saving Time transition issues affecting:
• Kp index graph
• Geomagnetic storm probability forecast
• Radiation storm probability forecast
• Radio blackout probability forecast
• Various minor bug fixes and stability improvements
1.5 11/02/2024
Fix: v1.4.2:
- Fixed crash and added informative error message when LASCO Coronagraph and Aurora animations fail to load
- Improved error handling for server connectivity issues
Fix: v1.4.1:
- Enhanced visibility for top buttons and status bar, preventing content overlap during scrolling
- Fixed a potential crash issue in the aurora detailed view
New Features v1.4:
- Exclusive Kp index forecast graph: A unique, combined view of current data and predictions
- Updated widgets: Home Screen and Lock Screen now display both current and forecasted Kp index values for quick, at-a-glance space weather updates
Improvements v1.4:
- Enhanced Lock Screen widget UI
- Optimized performance of all Lock Screen widgets
- Enhancing existing geomagnetic activity monitoring
- General stability and app user experience enhancements
1.4.2 10/23/2024
Improvements: v1.4.1:
- Enhanced visibility for top buttons and status bar, preventing content overlap during scrolling
- Fixed a potential crash issue in the aurora detailed view
New Features v1.4:
- Exclusive Kp index forecast graph: A unique, combined view of current data and predictions
- Updated widgets: Home Screen and Lock Screen now display both current and forecasted Kp index values for quick, at-a-glance space weather updates
Improvements v1.4:
- Enhanced Lock Screen widget UI
- Optimized performance of all Lock Screen widgets
- Enhancing existing geomagnetic activity monitoring
- General stability and app user experience enhancements
1.4.1 10/20/2024
New Features v1.4:
- Exclusive Kp index forecast graph: A unique, combined view of current data and predictions
- Updated widgets: Home Screen and Lock Screen now display both current and forecasted Kp index values for quick, at-a-glance space weather updates
Improvements:
- Enhanced Lock Screen widget UI
- Optimized performance of all Lock Screen widgets
- Enhancing existing geomagnetic activity monitoring
- General stability and app user experience enhancements
1.4 10/15/2024
New Features v1.3:
- Added LASCO widget for quick access to real-time coronal mass ejection data
Improvements:
- Streamlined data processing for faster loading times
- Optimized animation export
- Enhanced overall app stability and responsiveness
1.3 10/10/2024
Fix v1.2.1
- Fix widget Sun latest Image in iOS 18
New Features v1.2:
- Added real-time display of current coronal mass ejections using LASCO coronagraph
- Implemented choice between two coronagraph views: LASCO C2 (2-6 solar radii) and C3 (3.7-30 solar radii)
- Created animation view for coronal mass ejections over the past few hours
- Extended gesture controls to the new coronal mass ejection animations for precise frame-by-frame viewing
1.2.1 10/08/2024
New Features:
- Added real-time display of current coronal mass ejections using LASCO coronagraph
- Implemented choice between two coronagraph views: LASCO C2 (2-6 solar radii) and C3 (3.7-30 solar radii)
- Created animation view for coronal mass ejections over the past few hours
- Extended gesture controls to the new coronal mass ejection animations for precise frame-by-frame viewing
1.2 09/28/2024
New Features:
- Introduced export functionality for aurora forecast animations
- Added haptic feedback for sun rotation, allowing for more precise control of frame-by-frame animation
- Implemented gesture controls for aurora forecast map (similar to sun frame-by-frame animation control)
UI Improvements:
- Added an animation loading indicator
- Enhanced button visibility for improved readability
Bug Fixes:
- Fixed chart column sizing issues on various devices
- Fixed date label for better visibility and accuracy
1.1 08/14/2024
- Fixed issue where G0 descriptions were appearing empty.
- Several user interface improvements.
- Improved loading time, ensuring a smoother and faster experience from startup.
- Various minor bug fixes and stability improvements.
- Enhanced overall app responsiveness.
1.0.1 08/07/2024
Thanks for using Solar Weather!
Update v1.13.3:
- Fixed notifications
more Version 1.13.3 Jul 13
Data Not Collected The developer does not collect any data from this app.