Turku Climate by Month
Turku, Southwest Finland, Finland
Mild summers and freezing winters, with rain spread through the year.
Turku has mild summers and freezing winters, with rain spread through the year. Afternoon highs range from 30°F (-1°C) in February to 73°F (23°C) in July, and February nights average 19°F (-7°C). It gets 25 in (644 mm) of rain a year, spread across the months. The air is humid, averaging 82% relative humidity.
- Warmest month
- 73°F(23°C)
- Average high, July
- Coldest nights
- 19°F(-7°C)
- Average low, February
- Rain per year
- 25 in(644 mm)
- No clear rainy season
- Humidity
- 82%
- Sunniest: June
Best and worst months in Turku
Best for weatherThe most comfortable weather comes in July, with highs around 73°F (23°C) and about 2.8 in (70 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; January is the coldest, with highs of only 31°F (-1°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Turku weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 31°F(-1°C) | 21°F(-6°C) | 2.0 in(50 mm) | 100% | 0.3 |
| FebFebruary | 30°F(-1°C) | 19°F(-7°C) | 1.5 in(38 mm) | 88% | 0.9 |
| MarMarch | 37°F(3°C) | 24°F(-5°C) | 1.5 in(37 mm) | 87% | 2.3 |
| AprApril | 49°F(9°C) | 32°F(0°C) | 1.2 in(30 mm) | 71% | 3.8 |
| MayMay | 60°F(16°C) | 41°F(5°C) | 1.4 in(36 mm) | 63% | 5.3 |
| JunJune | 68°F(20°C) | 50°F(10°C) | 2.1 in(54 mm) | 65% | 5.8 |
| JulJulyBest | 73°F(23°C) | 56°F(13°C) | 2.8 in(70 mm) | 73% | 5.4 |
| AugAugust | 70°F(21°C) | 54°F(12°C) | 2.8 in(70 mm) | 74% | 4.2 |
| SepSeptember | 61°F(16°C) | 46°F(8°C) | 2.1 in(54 mm) | 86% | 2.5 |
| OctOctober | 48°F(9°C) | 38°F(3°C) | 3.0 in(75 mm) | 95% | 1.1 |
| NovNovember | 40°F(4°C) | 32°F(0°C) | 2.5 in(64 mm) | 99% | 0.3 |
| DecDecember | 35°F(1°C) | 26°F(-3°C) | 2.6 in(66 mm) | 88% | 0.1 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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