Annual mean 12°C · wettest around December · prevailing wind W
Warmest
21.8 °C
Coldest
7.2 °C
Wettest
25%
Windiest
6.6 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 Dinan over the whole year is 12°C. July is the hottest month, with highs of about 21°C; January is the coldest, with lows of about 5°C. Dinan has no sharply defined rainy season: the chance of rain on a given day runs from 6% in July, the driest month, to 19% in December, the wettest. Winds in Dinan are highest in February, averaging 5.0 m/s (18 km/h), and lightest in June, at 3.7 m/s (13 km/h). The prevailing wind is from the W. The clearest skies in Dinan come in April, when the sky is typically 68% covered; December is the cloudiest month, at 85%.
Month by month Dinan 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
5°C
3°C
17%
84%
4.7 m/s
0
0
22
February
10°C
6°C
4°C
14%
80%
5.0 m/s
0
0
33
March
11°C
6°C
6°C
13%
77%
4.8 m/s
4
0
48
April
14°C
8°C
10°C
11%
68%
4.1 m/s
17
0
69
May
17°C
11°C
13°C
8%
72%
4.0 m/s
39
1
86
June
19°C
14°C
17°C
11%
77%
3.7 m/s
67
8
78
July
21°C
16°C
19°C
6%
75%
4.0 m/s
85
10
79
August
21°C
15°C
19°C
8%
74%
3.8 m/s
83
12
74
September
20°C
14°C
17°C
11%
76%
3.8 m/s
70
7
80
October
16°C
11°C
13°C
15%
79%
4.1 m/s
35
1
83
November
12°C
8°C
7°C
17%
83%
4.7 m/s
2
0
58
December
9°C
7°C
5°C
19%
85%
5.0 m/s
0
0
34
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 Dinan weather by season
Year round, Dinan has days of about 8°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 16°C through the year, and the average temperature over the year is 12°C around the clock. Rain is most likely around December 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.
Dinan weather in winterDecember to February
High 9°CLow 6°CRain 17%
Winter in Dinan has typical daily highs of about 9°C and lows of about 6°C, with a 17% chance of rain on a given day.
Dinan weather in springMarch to May
High 14°CLow 8°CRain 11%
Spring in Dinan has typical daily highs of about 14°C and lows of about 8°C, with a 11% chance of rain on a given day.
Dinan weather in summerJune to August
High 21°CLow 15°CRain 8%
Summer in Dinan has typical daily highs of about 21°C and lows of about 15°C, with a 8% chance of rain on a given day.
Dinan weather in autumnSeptember to November
High 16°CLow 11°CRain 14%
Autumn in Dinan has typical daily highs of about 16°C and lows of about 11°C, with a 14% chance of rain on a given day.
When is the rainy season in Dinan?
Dinan has no sharply defined rainy season: the chance of rain on a given day runs from 6% in July, the driest month, to 19% in December, the wettest.
What time of year is Dinan windiest?
Winds in Dinan are highest in February, averaging 5.0 m/s (18 km/h), and lightest in June, at 3.7 m/s (13 km/h). The prevailing wind is from the W.
What is the average temperature in Dinan year round?
The average temperature in Dinan over the whole year is 12°C. July is the hottest month, with highs of about 21°C; January is the coldest, with lows of about 5°C.