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Weather & Climate
Alastaro, Finland Proper, Finland
Overview
Climate data and monthly weather averages for Alastaro.
Key Metrics
Annual Avg
4.7°C
Summer Avg
15.7°C
Winter Avg
-5.7°C
Record High
30.3°C
Record Low
-34.3°C
Annual Precipitation
732.6 mm
Avg Humidity
88%
Summer Humidity
80%
Winter Humidity
95%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 7.2° | -6.6° | -32° | 55.5 | 95% | 8 | 28.4 |
| Feb | 5.9° | -6.6° | -34.3° | 43.4 | 95% | 23 | 36.2 |
| Mar | 13.9° | -2.8° | -22.5° | 40.6 | 93% | 69 | 29.5 |
| Apr | 19.8° | 3.6° | -8.9° | 42.6 | 82% | 114 | 27.8 |
| May | 28.7° | 9.9° | -4.5° | 53.3 | 77% | 160 | 22.5 |
| Jun | 29.1° | 14.1° | 0.3° | 77.7 | 77% | 167 | 24.5 |
| Jul | 30.3° | 17.3° | 5.2° | 76 | 80% | 161 | 21 |
| Aug | 29.2° | 15.8° | 3.4° | 74.4 | 82% | 126 | 25.5 |
| Sep | 23.7° | 11° | -1.6° | 64.2 | 87% | 73 | 26.5 |
| Oct | 16.8° | 4.6° | -10.6° | 73.5 | 93% | 34 | 25.5 |
| Nov | 11.8° | 0.1° | -22.8° | 66.6 | 95% | 10 | 30.1 |
| Dec | 8.5° | -3.8° | -29.9° | 64.8 | 95% | 5 | 34.8 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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