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.
Comfortable for swimming. Now +19°.
Water temperature in Ostashkov for a month
There is no exact monthly water forecast — the reference is the climate normal: in summer the water warms to about +16°. The monthly normal is below.
Monthly water temperature in Ostashkov 🗓️
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ❄ | ❄ | ❄ | +4 | +9 | +15 | +16 | +15 | +13 | +7 | +1 | ❄ |
Climate normal (model estimate).
Water temperature archive in Ostashkov on this day
| Year | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| Water | +21° | +20° | +19° | +19° | +20° | +21° | +21° | +20° | +19° | +19° |
Climate normal (model estimate for this date), not a measurement archive.
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Water temperature in Ostashkov — in detail
A summary page of water temperature across all bodies of water in Ostashkov. Now about +19°. For seas the temperature is measured SST; for rivers and lakes it is a climate estimate.