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 Glomma
Water temperature in the Glomma by city today 📍
| City | Now | Swimming |
|---|---|---|
| Rerus | +14° | Cold water |
| Sarpsborg | +17° | Cool for swimming |
| Elverum | +15° | Cold water |
| Kongsvinger | +16° | Cool for swimming |
| Skarnes | +15° | Cool for swimming |
| Tyunset | +14° | Cold water |
| Rena | +15° | Cool for swimming |
| Voler | +16° | Cool for swimming |
| Koppang | +14° | Cold water |
| Alvdal | +14° | Cold water |
| Fetsunn | +15° | Cool for swimming |
| Ornes | +16° | Cool for swimming |
| Eulifeltet | +16° | Cool for swimming |
| Neskollen | +15° | Cool for swimming |
| Fellfoten | +15° | Cool for swimming |
| Serumsann | +16° | Cool for swimming |
| Ashim | +16° | Cool for swimming |
| Spyudeberg | +16° | Cool for swimming |
| Rerus | +14° | Cold water |
| Fredrikstad | +16° | Cool for swimming |
🎣 Fishing in cities on the Glomma
Water temperature forecast in the Glomma 📅
Computed by a climate model. Water changes slowly — no sharp shifts.
Water temperature in the Glomma this weekend
Water temperature in the Glomma for a month
There is no exact monthly water forecast — it changes slowly. The reference is the climate normal: up to +16° in summer. The monthly normal is below.
Monthly water temperature in the Glomma 🗓️
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| +1 | ❄ | +3 | +8 | +10 | +12 | +16 | +16 | +11 | +8 | +5 | +1 |
Climate normal (model estimate).
Swimming conditions in the Glomma by month
When to swim in the Glomma 🏖️
Cities on the Glomma 📍
FAQ about water in the Glomma ❓
What is the water temperature in the Glomma now?
Now +16° — Cool for swimming.
When is water warmest in the Glomma?
Warmest in July — up to +16°.
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 Glomma on this day
| City | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| Rerus | +12° | +12° | +13° | +14° | +14° | +13° | +12° | +12° | +13° | +14° |
| Sarpsborg | +15° | +16° | +16° | +17° | +17° | +16° | +15° | +15° | +16° | +17° |
| Elverum | +13° | +14° | +14° | +15° | +15° | +14° | +13° | +13° | +14° | +15° |
| Kongsvinger | +14° | +15° | +15° | +16° | +16° | +15° | +14° | +14° | +15° | +16° |
| Skarnes | +14° | +14° | +15° | +15° | +15° | +14° | +14° | +14° | +14° | +15° |
Climate normal (model estimate for this date), not a measurement archive.
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Water temperature in the Glomma — in detail
Water temperature in the Glomma is tracked across 20 cities. The water is now about +16°. The page has a temperature map by city, a daily forecast and a monthly climate normal.