Annual mean 13°C · wettest around December · prevailing wind N
Warmest
28.1 °C
Coldest
5.4 °C
Wettest
18%
Windiest
5.9 m/s
Prevailing
N
5.0 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 Romans-sur-Isère over the whole year is 13°C. August is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 3°C. Romans-sur-Isère has no sharply defined rainy season: the chance of rain on a given day runs from 5% in July, the driest month, to 12% in December, the wettest. Winds in Romans-sur-Isère are highest in January, averaging 4.6 m/s (17 km/h), and lightest in September, at 3.4 m/s (12 km/h). The prevailing wind is from the N. The clearest skies in Romans-sur-Isère come in July, when the sky is typically 69% covered; January is the cloudiest month, at 83%.
Month by month Romans-sur-Isère 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
7°C
3°C
1°C
7%
83%
4.6 m/s
0
0
22
February
10°C
3°C
5°C
8%
81%
4.2 m/s
2
0
39
March
13°C
4°C
8°C
8%
79%
4.2 m/s
10
0
58
April
16°C
8°C
12°C
9%
79%
4.3 m/s
35
1
69
May
19°C
12°C
16°C
11%
80%
4.1 m/s
58
7
75
June
25°C
17°C
23°C
10%
74%
3.8 m/s
68
40
41
July
28°C
19°C
26°C
5%
69%
3.9 m/s
59
54
29
August
28°C
17°C
26°C
5%
71%
3.8 m/s
53
49
29
September
23°C
13°C
20°C
7%
75%
3.4 m/s
70
27
58
October
18°C
10°C
15°C
10%
77%
3.9 m/s
53
2
79
November
11°C
6°C
7°C
11%
83%
3.7 m/s
8
0
50
December
7°C
3°C
3°C
12%
81%
3.8 m/s
1
0
24
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 Romans-sur-Isère weather by season
Year round, Romans-sur-Isère has days of about 7°C at their warmest in January, its coolest month, and 28°C in August, its warmest; the coolest hours of the day run from 3°C to 19°C through the year, and the average temperature over the year is 13°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.
Romans-sur-Isère weather in winterDecember to February
High 8°CLow 3°CRain 9%
Winter in Romans-sur-Isère has typical daily highs of about 8°C and lows of about 3°C, with a 9% chance of rain on a given day.
Romans-sur-Isère weather in springMarch to May
High 16°CLow 8°CRain 10%
Spring in Romans-sur-Isère has typical daily highs of about 16°C and lows of about 8°C, with a 10% chance of rain on a given day.
Romans-sur-Isère weather in summerJune to August
High 27°CLow 18°CRain 7%
Summer in Romans-sur-Isère has typical daily highs of about 27°C and lows of about 18°C, with a 7% chance of rain on a given day.
Romans-sur-Isère weather in autumnSeptember to November
High 17°CLow 10°CRain 9%
Autumn in Romans-sur-Isère has typical daily highs of about 17°C and lows of about 10°C, with a 9% chance of rain on a given day.
When is the rainy season in Romans-sur-Isère?
Romans-sur-Isère has no sharply defined rainy season: the chance of rain on a given day runs from 5% in July, the driest month, to 12% in December, the wettest.
What time of year is Romans-sur-Isère windiest?
Winds in Romans-sur-Isère are highest in January, averaging 4.6 m/s (17 km/h), and lightest in September, at 3.4 m/s (12 km/h). The prevailing wind is from the N.
What is the average temperature in Romans-sur-Isère year round?
The average temperature in Romans-sur-Isère over the whole year is 13°C. August is the hottest month, with highs of about 28°C; January is the coldest, with lows of about 3°C.