Swim - Sea & lake temperatures
Weather
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Heading to the coast or the lake? Check the water temperature before you go — live readings from over 100 measuring stations across Slovenia and Croatia.
Check the water temperature before you jump in. Swim shows live sea, river, and lake temperatures across Slovenia and the Croatian coast — from the Adriatic to alpine swimming spots.
• Live map with color-coded temperature pins for every measuring station
• Temperature trend arrows showing whether the water is warming or cooling
• Air temperature from the nearest weather station, side by side with water temp
• Temperature history charts for every station
• Save your favorite spots and check them at a glance
• Home screen widget with a live chart for your favorite station
• Sort stations by distance from where you are
Data is provided by the Slovenian Environment Agency (ARSO) and the Croatian Meteorological and Hydrological Service (DHZ). The app is open-source and ad-free.
What's new in 4.0: Major stability improvements (fixed freezing/hanging crashes), iOS 26 Liquid Glass design, temperature trend arrows, faster data loading, and a new home screen widget with live temperature chart.
The developer, Jernej Strasner, 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
- Jernej Strasner
- Size
- 7.7 MB
- Category
- Weather
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Jernej Strasner