Annual mean 13°C · wettest around January · prevailing wind W
Warmest
24.5 °C
Coldest
7.4 °C
Wettest
22%
Windiest
6.3 m/s
Prevailing
W
5.2 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
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 Château-d’Olonne over the whole year is 13°C. August is the hottest month, with highs of about 24°C; January is the coldest, with lows of about 6°C. Château-d’Olonne has no sharply defined rainy season: the chance of rain on a given day runs from 5% in July, the driest month, to 19% in January, the wettest. Winds in Château-d’Olonne are highest in January, averaging 5.3 m/s (19 km/h), and lightest in August, at 4.1 m/s (15 km/h). The prevailing wind is from the W. The clearest skies in Château-d’Olonne come in July, when the sky is typically 66% covered; December is the cloudiest month, at 78%.
Month by month Château-d’Olonne 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
8°C
6°C
4°C
19%
77%
5.3 m/s
0
0
29
February
10°C
7°C
5°C
16%
74%
5.2 m/s
1
0
44
March
12°C
7°C
7°C
14%
72%
5.3 m/s
6
0
57
April
15°C
9°C
11°C
9%
69%
4.5 m/s
24
0
78
May
18°C
13°C
15°C
11%
70%
4.6 m/s
53
4
83
June
22°C
16°C
20°C
10%
71%
4.3 m/s
77
19
66
July
23°C
18°C
22°C
5%
66%
4.4 m/s
85
24
63
August
24°C
17°C
22°C
6%
66%
4.1 m/s
80
27
58
September
21°C
15°C
19°C
9%
68%
4.3 m/s
79
15
72
October
17°C
12°C
15°C
13%
73%
4.5 m/s
53
2
85
November
12°C
9°C
8°C
17%
73%
5.2 m/s
8
0
63
December
10°C
7°C
5°C
17%
78%
5.3 m/s
0
0
41
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 Château-d’Olonne weather by season
Year round, Château-d’Olonne has days of about 8°C at their warmest in January, its coolest month, and 24°C in August, its warmest; the coolest hours of the day run from 6°C to 18°C through the year, and the average temperature over the year is 13°C around the clock. Rain is most likely around January and least likely around July. 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.
Château-d’Olonne weather in winterDecember to February
High 9°CLow 6°CRain 17%
Winter in Château-d’Olonne has typical daily highs of about 9°C and lows of about 6°C, with a 17% chance of rain on a given day.
Château-d’Olonne weather in springMarch to May
High 15°CLow 9°CRain 11%
Spring in Château-d’Olonne has typical daily highs of about 15°C and lows of about 9°C, with a 11% chance of rain on a given day.
Château-d’Olonne weather in summerJune to August
High 23°CLow 17°CRain 7%
Summer in Château-d’Olonne has typical daily highs of about 23°C and lows of about 17°C, with a 7% chance of rain on a given day.
Château-d’Olonne weather in autumnSeptember to November
High 17°CLow 12°CRain 13%
Autumn in Château-d’Olonne has typical daily highs of about 17°C and lows of about 12°C, with a 13% chance of rain on a given day.
When is the rainy season in Château-d’Olonne?
Château-d’Olonne has no sharply defined rainy season: the chance of rain on a given day runs from 5% in July, the driest month, to 19% in January, the wettest.
What time of year is Château-d’Olonne windiest?
Winds in Château-d’Olonne are highest in January, averaging 5.3 m/s (19 km/h), and lightest in August, at 4.1 m/s (15 km/h). The prevailing wind is from the W.
What is the average temperature in Château-d’Olonne year round?
The average temperature in Château-d’Olonne over the whole year is 13°C. August is the hottest month, with highs of about 24°C; January is the coldest, with lows of about 6°C.