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.
Bite in Jakobstad today — moderate 🎣
Pressure is jumping, water +14° — most active: cod and Baltic herring. Forecast by fish species and for the week ahead.
Bite forecast →
Water bodies in Jakobstad 🌊
Map of water bodies in Jakobstad
Water temperature in Jakobstad for a month
There is no exact monthly water forecast — the reference is the climate normal: in summer the water warms to about +17°. The monthly normal is below.
Monthly water temperature in Jakobstad 🗓️
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| +1 | +2 | +2 | +6 | +10 | +16 | +17 | +17 | +16 | +11 | +7 | +3 |
Climate normal (model estimate).
Water temperature archive in Jakobstad on this day
| Year | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|---|---|---|
| Water | +14° | +15° | +15° | +15° | +14° | +14° | +14° | +15° | +15° | +15° |
Climate normal (model estimate for this date), not a measurement archive.
When to swim in Jakobstad 🏖️
Where else to swim nearby 🏝️
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FAQ about water in Jakobstad ❓
What is the water temperature in Jakobstad now?
Now +15° — Cool for swimming.
When to swim in Jakobstad?
Comfortable season — July and August.
When is the water in Jakobstad warmest?
Warmest in July — up to +17°.
What bodies of water are there in Jakobstad?
Baltic Sea.
Water temperature in Jakobstad — in detail
A summary page of water temperature across all bodies of water in Jakobstad: Baltic Sea. Now about +15°. For seas the temperature is measured SST; for rivers and lakes it is a climate estimate.