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 | 2.5★ (15) | Yes | Yes | Oct 2026 | ||
| 2 | Free | 4.7★ (16K) | No | Yes | Nov 2026 | ||
| 3 | Free | 4.7★ (2.5K) | Yes | Yes | Oct 2026 | ||
| 4 | $2.99 | 3.8★ (6) | No | No | Nov 2026 | ||
| 5 | $4.99 | 5.0★ (1) | No | No | Oct 2026 | ||
| 6 | Free | 5.0★ (4) | Yes | Yes | Oct 2026 | ||
| 7 | Free | 4.6★ (896) | No | Yes | Nov 2026 | ||
| 8 | Free | — | No | Yes | Nov 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.






Access detailed buoy and ship observation data without weather forecasts or tide information. View current conditions, historical trends, and storm locations on an intuitive map. Monitor your favorite locations with customizable widgets.