Average weather, temperature, rainfall, sunshine hours
The climate of Muonio is cold continental, with freezing winters and mild summers.
The town is located in northern Finland, in Lapland, on the border with Sweden. The latitude (67° 57' N) shows that we are just north of the Polar Circle. The midnight sun can be observed from May 28th to July 17th, and the white nights from April 17th to August 27th. The sun does not rise (polar night) from December 10 to January 2.
The
average temperature of the coldest month (January) is of -14.4 °C (6 °F), that of the warmest month (July) is of 14 °C (57 °F). In January 1999, the temperature dropped to -46 °C (-51 °F), while in July 2018, it reached 30.8 °C (87.5 °F). Here are the average temperatures.
Muonio - Average temperatures| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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| Min (°C) | -19 | -18 | -13 | -7 | 0 | 6 | 9 | 7 | 2 | -4 | -12 | -17 |
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| Max (°C) | -10 | -9 | -3 | 3 | 10 | 16 | 19 | 16 | 10 | 2 | -5 | -9 |
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| Min (°F) | -2 | 0 | 9 | 19 | 32 | 43 | 48 | 45 | 36 | 25 | 10 | 1 |
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| Max (°F) | 14 | 16 | 27 | 37 | 50 | 61 | 66 | 61 | 50 | 36 | 23 | 16 |
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amounts to 520 millimeters (20.5 inches) per year: so, it is at an intermediate level. It ranges from 25 mm (1 in) in the driest months (February, April) to 75 mm (3 in) in the wettest ones (July, August). Here is the average precipitation.
Muonio - Average precipitation| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
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| Prec.(mm) | 30 | 25 | 30 | 25 | 40 | 60 | 75 | 75 | 50 | 45 | 35 | 30 | 520 |
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| Prec.(in) | 1.2 | 1 | 1.2 | 1 | 1.6 | 2.4 | 3 | 3 | 2 | 1.8 | 1.4 | 1.2 | 20.5 |
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| Days | 9 | 8 | 7 | 6 | 8 | 10 | 12 | 11 | 9 | 9 | 10 | 10 | 109 |
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Best Time
The best time to visit Muonio is the summer, from June to August, since it is the mildest season. However, you must take into account some rainy days and a bit of cold at night.