Annual mean 5°C · wettest around December · prevailing wind W
Warmest
20.4 °C
Coldest
-4.5 °C
Wettest
20%
Windiest
3.8 m/s
Prevailing
W
3.1 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 Bollnäs over the whole year is 5°C. July is the hottest month, with highs of about 19°C; January is the coldest, with lows of about -5°C. Bollnäs has no sharply defined rainy season: the chance of rain on a given day runs from 8% in April, the driest month, to 18% in December, the wettest. Winds in Bollnäs are highest in March, averaging 2.7 m/s (10 km/h), and lightest in September, at 2.2 m/s (8 km/h). The prevailing wind is from the W. The clearest skies in Bollnäs come in June, when the sky is typically 50% covered; November is the cloudiest month, at 75%.
Month by month Bollnäs 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
-8°C
16%
70%
2.6 m/s
0
0
0
February
-1°C
-5°C
-6°C
12%
68%
2.6 m/s
0
0
1
March
2°C
-4°C
-3°C
11%
60%
2.7 m/s
0
0
4
April
7°C
-0°C
2°C
8%
53%
2.7 m/s
2
0
21
May
13°C
5°C
9°C
9%
53%
2.6 m/s
21
0
60
June
18°C
11°C
16°C
9%
50%
2.5 m/s
57
7
80
July
19°C
12°C
18°C
10%
53%
2.3 m/s
69
11
78
August
18°C
12°C
16°C
11%
58%
2.3 m/s
66
5
84
September
14°C
8°C
11°C
10%
66%
2.2 m/s
22
0
81
October
8°C
4°C
4°C
15%
69%
2.5 m/s
1
0
35
November
2°C
0°C
-2°C
16%
75%
2.5 m/s
0
0
7
December
-2°C
-3°C
-6°C
18%
71%
2.3 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 Bollnäs weather by season
Year round, Bollnäs has days of about -4°C at their warmest in January, its coolest month, and 19°C in July, its warmest; the coolest hours of the day run from -5°C to 12°C through the year, and the average temperature over the year is 5°C around the clock. Rain is most likely around December and least likely around April. 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.
Bollnäs weather in winterDecember to February
High -2°CLow -4°CRain 15%
Winter in Bollnäs has typical daily highs of about -2°C and lows of about -4°C, with a 15% chance of rain on a given day.
Bollnäs weather in springMarch to May
High 7°CLow 0°CRain 9%
Spring in Bollnäs has typical daily highs of about 7°C and lows of about 0°C, with a 9% chance of rain on a given day.
Bollnäs weather in summerJune to August
High 19°CLow 12°CRain 10%
Summer in Bollnäs has typical daily highs of about 19°C and lows of about 12°C, with a 10% chance of rain on a given day.
Bollnäs weather in autumnSeptember to November
High 8°CLow 4°CRain 14%
Autumn in Bollnäs has typical daily highs of about 8°C and lows of about 4°C, with a 14% chance of rain on a given day.
When is the rainy season in Bollnäs?
Bollnäs has no sharply defined rainy season: the chance of rain on a given day runs from 8% in April, the driest month, to 18% in December, the wettest.
What time of year is Bollnäs windiest?
Winds in Bollnäs are highest in March, averaging 2.7 m/s (10 km/h), and lightest in September, at 2.2 m/s (8 km/h). The prevailing wind is from the W.
What is the average temperature in Bollnäs year round?
The average temperature in Bollnäs over the whole year is 5°C. July is the hottest month, with highs of about 19°C; January is the coldest, with lows of about -5°C.