Annual mean 10°C · wettest around December · prevailing wind W
Warmest
23.9 °C
Coldest
1.5 °C
Wettest
39%
Windiest
3.8 m/s
Prevailing
W
2.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Biel/Bienne over the whole year is 10°C. July is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 0°C. Biel/Bienne has no sharply defined rainy season: the chance of rain on a given day runs from 21% in September, the driest month, to 35% in December, the wettest. Winds in Biel/Bienne are highest in January, averaging 2.8 m/s (10 km/h), and lightest in August, at 1.9 m/s (7 km/h). The prevailing wind is from the W. The clearest skies in Biel/Bienne come in August, when the sky is typically 56% covered; December is the cloudiest month, at 77%.
Month by month Biel/Bienne 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
3°C
0°C
-1°C
32%
77%
2.8 m/s
0
0
8
February
6°C
2°C
2°C
27%
69%
2.8 m/s
0
0
21
March
9°C
3°C
5°C
29%
65%
2.6 m/s
4
0
38
April
13°C
6°C
9°C
24%
62%
2.4 m/s
24
0
61
May
16°C
11°C
14°C
30%
66%
2.3 m/s
44
4
71
June
22°C
15°C
21°C
29%
59%
2.2 m/s
70
25
57
July
23°C
17°C
22°C
25%
56%
2.1 m/s
73
34
49
August
23°C
16°C
22°C
22%
56%
1.9 m/s
66
38
45
September
19°C
12°C
17°C
21%
59%
1.9 m/s
63
13
69
October
14°C
8°C
12°C
24%
64%
2.0 m/s
33
0
74
November
7°C
4°C
4°C
30%
76%
2.3 m/s
2
0
29
December
4°C
2°C
-0°C
35%
77%
2.5 m/s
0
0
9
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 Biel/Bienne weather by season
Year round, Biel/Bienne has days of about 3°C at their warmest in January, its coolest month, and 23°C in July, its warmest; the coolest hours of the day run from 0°C to 17°C through the year, and the average temperature over the year is 10°C around the clock. Rain is most likely around December and least likely around September. 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.
Biel/Bienne weather in winterDecember to February
High 4°CLow 1°CRain 31%
Winter in Biel/Bienne has typical daily highs of about 4°C and lows of about 1°C, with a 31% chance of rain on a given day.
Biel/Bienne weather in springMarch to May
High 12°CLow 6°CRain 28%
Spring in Biel/Bienne has typical daily highs of about 12°C and lows of about 6°C, with a 28% chance of rain on a given day.
Biel/Bienne weather in summerJune to August
High 23°CLow 16°CRain 25%
Summer in Biel/Bienne has typical daily highs of about 23°C and lows of about 16°C, with a 25% chance of rain on a given day.
Biel/Bienne weather in autumnSeptember to November
High 13°CLow 8°CRain 25%
Autumn in Biel/Bienne has typical daily highs of about 13°C and lows of about 8°C, with a 25% chance of rain on a given day.
When is the rainy season in Biel/Bienne?
Biel/Bienne has no sharply defined rainy season: the chance of rain on a given day runs from 21% in September, the driest month, to 35% in December, the wettest.
What time of year is Biel/Bienne windiest?
Winds in Biel/Bienne are highest in January, averaging 2.8 m/s (10 km/h), and lightest in August, at 1.9 m/s (7 km/h). The prevailing wind is from the W.
What is the average temperature in Biel/Bienne year round?
The average temperature in Biel/Bienne over the whole year is 10°C. July is the hottest month, with highs of about 23°C; January is the coldest, with lows of about 0°C.