Annual mean 10°C · wettest around December · prevailing wind W
Warmest
24.4 °C
Coldest
1.5 °C
Wettest
31%
Windiest
4.3 m/s
Prevailing
W
3.2 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 La Roche-sur-Foron over the whole year is 10°C. July is the hottest month, with highs of about 24°C; January is the coldest, with lows of about -1°C. La Roche-sur-Foron has no sharply defined rainy season: the chance of rain on a given day runs from 14% in August, the driest month, to 27% in December, the wettest. Winds in La Roche-sur-Foron are highest in June, averaging 3.4 m/s (12 km/h), and lightest in August, at 2.5 m/s (9 km/h). The prevailing wind is from the W. The clearest skies in La Roche-sur-Foron come in July, when the sky is typically 59% covered; November is the cloudiest month, at 72%.
Month by month La Roche-sur-Foron 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
-1°C
-1°C
25%
71%
2.9 m/s
0
0
13
February
5°C
0°C
2°C
19%
68%
2.8 m/s
1
0
29
March
8°C
2°C
5°C
22%
66%
2.9 m/s
5
0
44
April
12°C
4°C
9°C
18%
68%
2.8 m/s
25
0
65
May
17°C
9°C
14°C
24%
68%
3.1 m/s
49
4
72
June
22°C
14°C
20°C
21%
64%
3.4 m/s
68
29
52
July
24°C
15°C
23°C
15%
59%
2.8 m/s
69
41
42
August
24°C
15°C
23°C
14%
60%
2.5 m/s
63
42
42
September
19°C
10°C
18°C
16%
62%
2.6 m/s
67
17
65
October
15°C
7°C
12°C
18%
64%
2.7 m/s
41
0
77
November
8°C
3°C
5°C
23%
72%
2.7 m/s
2
0
40
December
4°C
0°C
1°C
27%
70%
2.6 m/s
0
0
14
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 La Roche-sur-Foron weather by season
Year round, La Roche-sur-Foron has days of about 3°C at their warmest in January, its coolest month, and 24°C in July, its warmest; the coolest hours of the day run from -1°C to 15°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 August. 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.
La Roche-sur-Foron weather in winterDecember to February
High 4°CLow -0°CRain 24%
Winter in La Roche-sur-Foron has typical daily highs of about 4°C and lows of about -0°C, with a 24% chance of rain on a given day.
La Roche-sur-Foron weather in springMarch to May
High 12°CLow 5°CRain 21%
Spring in La Roche-sur-Foron has typical daily highs of about 12°C and lows of about 5°C, with a 21% chance of rain on a given day.
La Roche-sur-Foron weather in summerJune to August
High 23°CLow 14°CRain 17%
Summer in La Roche-sur-Foron has typical daily highs of about 23°C and lows of about 14°C, with a 17% chance of rain on a given day.
La Roche-sur-Foron weather in autumnSeptember to November
High 14°CLow 7°CRain 19%
Autumn in La Roche-sur-Foron has typical daily highs of about 14°C and lows of about 7°C, with a 19% chance of rain on a given day.
When is the rainy season in La Roche-sur-Foron?
La Roche-sur-Foron has no sharply defined rainy season: the chance of rain on a given day runs from 14% in August, the driest month, to 27% in December, the wettest.
What time of year is La Roche-sur-Foron windiest?
Winds in La Roche-sur-Foron are highest in June, averaging 3.4 m/s (12 km/h), and lightest in August, at 2.5 m/s (9 km/h). The prevailing wind is from the W.
What is the average temperature in La Roche-sur-Foron year round?
The average temperature in La Roche-sur-Foron over the whole year is 10°C. July is the hottest month, with highs of about 24°C; January is the coldest, with lows of about -1°C.