Annual mean 6°C · wettest around January · prevailing wind SW
Warmest
22.2 °C
Coldest
-5.9 °C
Wettest
38%
Windiest
4.5 m/s
Prevailing
SW
4.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Mäntsälä over the whole year is 6°C. July is the hottest month, with highs of about 21°C; January is the coldest, with lows of about -5°C. The rainy (wet) season in Mäntsälä runs from October to February, peaking in January with a 32% chance of rain on a given day. The dry season is March to September; May is the driest month, at 14%. Winds in Mäntsälä are highest in January, averaging 3.8 m/s (14 km/h), and lightest in July, at 3.1 m/s (11 km/h). The prevailing wind is from the SW. The clearest skies in Mäntsälä come in May, when the sky is typically 46% covered; December is the cloudiest month, at 85%.
Month by month Mäntsälä climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-4°C
-5°C
-9°C
32%
81%
3.8 m/s
0
0
0
February
-2°C
-4°C
-7°C
31%
76%
3.7 m/s
0
0
0
March
1°C
-3°C
-4°C
21%
64%
3.5 m/s
0
0
1
April
7°C
1°C
2°C
16%
55%
3.5 m/s
1
0
20
May
14°C
8°C
10°C
14%
46%
3.3 m/s
25
1
61
June
19°C
13°C
15°C
16%
46%
3.4 m/s
49
7
75
July
21°C
15°C
19°C
16%
48%
3.1 m/s
71
16
70
August
19°C
13°C
17°C
16%
54%
3.3 m/s
70
5
81
September
14°C
9°C
12°C
20%
59%
3.2 m/s
29
0
76
October
8°C
5°C
4°C
28%
72%
3.6 m/s
1
0
29
November
2°C
1°C
-2°C
29%
82%
3.7 m/s
0
0
5
December
-1°C
-2°C
-6°C
24%
85%
3.7 m/s
0
0
0
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Mäntsälä weather by season
Year round, Mäntsälä has days of about -4°C at their warmest in January, its coolest month, and 21°C in July, its warmest; the coolest hours of the day run from -5°C to 15°C through the year, and the average temperature over the year is 6°C around the clock. Rain is most likely around January and least likely around May. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Mäntsälä weather in winterDecember to February
High -3°CLow -4°CRain 29%
Winter in Mäntsälä has typical daily highs of about -3°C and lows of about -4°C, with a 29% chance of rain on a given day.
Mäntsälä weather in springMarch to May
High 7°CLow 2°CRain 17%
Spring in Mäntsälä has typical daily highs of about 7°C and lows of about 2°C, with a 17% chance of rain on a given day.
Mäntsälä weather in summerJune to August
High 20°CLow 14°CRain 16%
Summer in Mäntsälä has typical daily highs of about 20°C and lows of about 14°C, with a 16% chance of rain on a given day.
Mäntsälä weather in autumnSeptember to November
High 8°CLow 5°CRain 26%
Autumn in Mäntsälä has typical daily highs of about 8°C and lows of about 5°C, with a 26% chance of rain on a given day.
When is the rainy season in Mäntsälä?
The rainy (wet) season in Mäntsälä runs from October to February, peaking in January with a 32% chance of rain on a given day. The dry season is March to September; May is the driest month, at 14%.
What time of year is Mäntsälä windiest?
Winds in Mäntsälä are highest in January, averaging 3.8 m/s (14 km/h), and lightest in July, at 3.1 m/s (11 km/h). The prevailing wind is from the SW.
What is the average temperature in Mäntsälä year round?
The average temperature in Mäntsälä over the whole year is 6°C. July is the hottest month, with highs of about 21°C; January is the coldest, with lows of about -5°C.