Solar Weather
Magnetic Storms & Moon Phases
Free · Designed for iPhone. Not verified for macOS.
Track geomagnetic activity in real time. Get alerts before magnetic storms hit and never miss a full moon. Beautifully simple space weather at your fingertips.
Solar Weather brings real-time space weather monitoring to your pocket. Track the planetary Kp-index, forecast magnetic storms, and follow moon phases — all in one beautifully designed app.
REAL-TIME KP-INDEX
Monitor the current geomagnetic activity level on a clear 0–9 scale with color-coded status. See hourly charts for the last 24 hours and spot trends at a glance.
STORM FORECASTS
View 24-hour and 27-day geomagnetic forecasts sourced from NOAA. Know when the next magnetic storm is coming before it affects your health, electronics, or aurora visibility.
MOON PHASE CALENDAR
Browse an interactive monthly calendar showing the moon phase for every day. Tap any date to see the lunar day, illumination percentage, and days until the next full or new moon.
SMART NOTIFICATIONS
Choose exactly which alerts matter to you:
• Magnetosphere excited (Kp 2–3)
• Magnetic storm detected (Kp 4+)
• Severe storm warning (Kp 7+)
• Full moon — 2 days, 1 day, or day-of
• New moon — 2 days, 1 day, or day-of
EDUCATIONAL ARTICLES
Learn what the magnetosphere is, how K-index works, how geomagnetic storms affect health, and why the aurora borealis happens.
FEATURES
• Real-time Kp-index with hourly bar charts
• 24-hour and 27-day storm forecasts from NOAA
• Interactive moon phase calendar
• 9 configurable push notification types
• Offline moon calculations — works without internet
• Dark theme designed for space weather
• Localized in English, German, Russian, and Spanish
• No ads. No tracking. Free forever.
Thanks for using Solar Weather! This update brings:
• A refined real-time Kp-index gauge and hourly charts
• Smoother 24-hour and 27-day storm forecasts
• Interactive moon phase calendar improvements
• More reliable push notifications
• Performance improvements and bug fixes
Now available in English, German, Russian, and Spanish. Questions or ideas? Write to storm@ntpk.com
The developer, Andrey Sapunov, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Andrey Sapunov
- Size
- 6.3 MB
- Category
- Weather
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
English and 3 more
- English, German, Russian, Spanish
- Age Rating
4+
- 4+
- Copyright
- © 2026 Solar Weather