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 forecast in the Bolshaya Kosha 📅
Computed by a climate model. Water changes slowly — no sharp shifts.
Water temperature in the Bolshaya Kosha this weekend
Water temperature in the Bolshaya Kosha for a month
There is no exact monthly water forecast — it changes slowly. The reference is the climate normal: up to +15° in summer. The monthly normal is below.
Monthly water temperature in the Bolshaya Kosha 🗓️
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ❄ | ❄ | +2 | +5 | +10 | +15 | +14 | +14 | +14 | +10 | +4 | +2 |
Climate normal (model estimate).
Swimming conditions in the Bolshaya Kosha by month
When to swim in the Bolshaya Kosha 🏖️
FAQ about water in the Bolshaya Kosha ❓
What is the water temperature in the Bolshaya Kosha now?
Now +14° — Cold water.
When is water warmest in the Bolshaya Kosha?
Warmest in June — up to +15°.
Where does the water temperature data come from?
A water temperature model (by latitude, longitude and day of year), by the water body location.
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Water temperature in the Bolshaya Kosha — in detail
Water temperature in the Bolshaya Kosha is estimated with a climate model. The water is now about +14°. The page has a daily forecast and a monthly climate normal.