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Weather & Climate
Mäntyharju, Southern Savonia, Finland
Overview
Climate data and monthly weather averages for Mäntyharju.
Key Metrics
Annual Avg
3.9°C
Summer Avg
16.4°C
Winter Avg
-8.3°C
Record High
31.2°C
Record Low
-40.8°C
Annual Precipitation
790.2 mm
Avg Humidity
88%
Summer Humidity
79%
Winter Humidity
95%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 5.6° | -9.7° | -40.8° | 52.1 | 95% | 7 | 27.5 |
| Feb | 5.3° | -8.9° | -35.3° | 40.3 | 95% | 23 | 30.8 |
| Mar | 12.1° | -4.1° | -24.5° | 40 | 95% | 69 | 34.3 |
| Apr | 18.8° | 3.5° | -10.9° | 46.5 | 83% | 108 | 30.4 |
| May | 28° | 10.4° | -2.8° | 66.3 | 76% | 153 | 27.7 |
| Jun | 28.8° | 14.8° | 1° | 92.1 | 76% | 160 | 29.8 |
| Jul | 31.2° | 18.1° | 6° | 97.6 | 78% | 157 | 26 |
| Aug | 29.9° | 16.2° | 5.5° | 83.4 | 82% | 121 | 29.6 |
| Sep | 22.4° | 11° | -0.6° | 71.4 | 87% | 68 | 29.4 |
| Oct | 15.2° | 3.9° | -13.2° | 72.2 | 93% | 30 | 28.8 |
| Nov | 9.7° | -1.7° | -29.7° | 66.3 | 95% | 9 | 33.3 |
| Dec | 7.6° | -6.2° | -34.7° | 62 | 95% | 4 | 35.4 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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