Finland
Turku in January: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Turku in January is climatically mixed. The average daily high is around -2 °C, and the sea is about 2 °C. With about 14 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
16/100 · #10
Warmth
#12
Dryness
#10
Sun
#11
Sea warmth
#10
Published best categories: none
Turku · JanuaryPhoto: Kotivalo · CC0Climate facts
- Average high
- -2 °C
- Average low
- -7 °C
- Sea
- 2 °C
- Rainy days (est.)
- 14 rainy days (est.)
- Sun (est.)
- 0 h/day
- Humidity
- 97 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| December | -1 | -4 | 15 | 68 | 0.2 | 97 | 0.8 | 4 | 15 |
| January (selected) | -2 | -7 | 14 | 62 | 0.3 | 97 | 0.8 | 2 | 16 |
| February | -2 | -8 | 11 | 49 | 1.0 | 97 | 0.8 | 1 | 23 |
How do the previous and next months compare?
Baseline: January (16/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| December | -1 | +1.8 °C | +2.5 °C | +0.8 | +6.7 mm | -0.1 h | -0.2 % | -0.1 m/s | +2.2 °C |
| February | +7 | ±0 °C | -1 °C | -3.1 | -13.1 mm | +0.7 h | -0.3 % | ±0 m/s | -1.2 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Turku in January?
The average daily high is around -2 °C, with an average daily low of about -7 °C.
Can you swim in Turku in January?
The sea is about 2 °C (cold).
Does it rain a lot in Turku in January?
The curated estimate is about 14 rainy days per month, not a directly measured long-term average. Total precipitation averages around 62 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Turku?
By the climate score, July and August are the strongest months for Turku. January is not among them.