Get real-time sea and lake temperatures worldwide with historical data and custom alerts for various water activities. Compare locations, view seasonal trends, and explore with enhanced map features.






250+ iOS apps curated and reviewed
Every iPhone needs a few good water temperature apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 2.6★ (14) | Yes | Yes | Aug 2026 | ||
| 2 | Free | 4.7★ (16K) | No | Yes | Sep 2026 | ||
| 3 | $2.99 | 3.5★ (4) | No | No | Sep 2026 | ||
| 4 | Free | 4.7★ (2.4K) | Yes | Yes | Sep 2026 | ||
| 5 | Free | 5.0★ (4) | Yes | Yes | Aug 2026 | ||
| 6 | Free | 4.8★ (73) | No | Yes | Aug 2026 | ||
| 7 | Free | 5.0★ (2) | No | No | Jul 2026 | ||
| 8 | $4.99 | 5.0★ (1) | No | No | Aug 2026 |






Get real-time sea and lake temperatures worldwide with historical data and custom alerts for various water activities. Compare locations, view seasonal trends, and explore with enhanced map features.






Access comprehensive NOAA marine weather data, including real-time buoy readings, 5-day forecasts, and historical wave trends. Visualize data with map overlays and receive severe weather alerts. An Apple Watch app is also available.



Monitor and record water temperatures directly from your Apple Watch. Get real-time readings, switch between units, and track your session duration. Ideal for water sports enthusiasts and anyone interested in water conditions.