This is a climate-model estimate, not a measurement: we have no measured water temperature for rivers, lakes and reservoirs yet. Real measurements are available for seas only.
Water temperature map of the Tern
Water temperature in the Tern by city today 📍
| City | Now | Swimming |
|---|---|---|
| Terny | +17° | Cool for swimming |
🎣 Fishing in cities on the Tern
Water temperature forecast in the Tern 📅
Computed by a climate model. Water changes slowly — no sharp shifts.
Water temperature in the Tern this weekend
Water temperature in the Tern for a month
There is no exact monthly water forecast — it changes slowly. The reference is the climate normal: up to +17° in summer. The monthly normal is below.
Monthly water temperature in the Tern 🗓️
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ❄ | +3 | +5 | +7 | +12 | +17 | +17 | +15 | +14 | +12 | +6 | +3 |
Climate normal (model estimate).
Swimming conditions in the Tern by month
When to swim in the Tern 🏖️
Cities on the Tern 📍
FAQ about water in the Tern ❓
What is the water temperature in the Tern now?
Now +16° — Cool for swimming.
When is water warmest in the Tern?
Warmest in July — up to +17°.
Where does the water temperature data come from?
A water temperature model (by latitude, longitude and day of year), by cities.
Water temperature archive in the Tern on this day
| City | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| Terny | +13° | +14° | +16° | +16° | +15° | +14° | +13° | +14° | +16° | +17° |
Climate normal (model estimate for this date), not a measurement archive.
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Water temperature in the Tern — in detail
Water temperature in the Tern is tracked across 1 cities. The water is now about +16°. The page has a temperature map by city, a daily forecast and a monthly climate normal.