Annual mean 12°C · wettest around December · prevailing wind SW
Warmest
24.4 °C
Coldest
4.2 °C
Wettest
19%
Windiest
6.1 m/s
Prevailing
SW
4.7 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 Romilly-sur-Seine over the whole year is 12°C. July is the hottest month, with highs of about 24°C; January is the coldest, with lows of about 3°C. Romilly-sur-Seine has no sharply defined rainy season: the chance of rain on a given day runs from 6% in July, the driest month, to 14% in December, the wettest. Winds in Romilly-sur-Seine are highest in February, averaging 4.6 m/s (17 km/h), and lightest in September, at 3.1 m/s (11 km/h). The prevailing wind is from the SW. The clearest skies in Romilly-sur-Seine come in March, when the sky is typically 73% covered; December is the cloudiest month, at 85%.
Month by month Romilly-sur-Seine 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
5°C
3°C
0°C
13%
83%
4.4 m/s
0
0
12
February
8°C
4°C
3°C
12%
77%
4.6 m/s
1
0
25
March
11°C
4°C
6°C
12%
73%
4.4 m/s
7
0
43
April
14°C
6°C
10°C
9%
73%
3.6 m/s
24
1
67
May
18°C
11°C
15°C
11%
75%
3.5 m/s
51
5
77
June
23°C
15°C
21°C
10%
76%
3.2 m/s
73
26
59
July
24°C
17°C
22°C
6%
76%
3.4 m/s
78
27
57
August
24°C
16°C
23°C
6%
75%
3.3 m/s
74
34
51
September
21°C
12°C
18°C
8%
75%
3.1 m/s
67
16
69
October
16°C
10°C
13°C
12%
76%
3.7 m/s
37
1
81
November
9°C
6°C
5°C
12%
81%
3.9 m/s
2
0
41
December
7°C
4°C
2°C
14%
85%
4.4 m/s
0
0
19
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 Romilly-sur-Seine weather by season
Year round, Romilly-sur-Seine has days of about 5°C at their warmest in January, its coolest month, and 24°C in July, its warmest; the coolest hours of the day run from 3°C to 17°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.
Romilly-sur-Seine weather in winterDecember to February
High 7°CLow 4°CRain 13%
Winter in Romilly-sur-Seine has typical daily highs of about 7°C and lows of about 4°C, with a 13% chance of rain on a given day.
Romilly-sur-Seine weather in springMarch to May
High 14°CLow 7°CRain 11%
Spring in Romilly-sur-Seine has typical daily highs of about 14°C and lows of about 7°C, with a 11% chance of rain on a given day.
Romilly-sur-Seine weather in summerJune to August
High 24°CLow 16°CRain 7%
Summer in Romilly-sur-Seine has typical daily highs of about 24°C and lows of about 16°C, with a 7% chance of rain on a given day.
Romilly-sur-Seine weather in autumnSeptember to November
High 15°CLow 9°CRain 11%
Autumn in Romilly-sur-Seine has typical daily highs of about 15°C and lows of about 9°C, with a 11% chance of rain on a given day.
When is the rainy season in Romilly-sur-Seine?
Romilly-sur-Seine has no sharply defined rainy season: the chance of rain on a given day runs from 6% in July, the driest month, to 14% in December, the wettest.
What time of year is Romilly-sur-Seine windiest?
Winds in Romilly-sur-Seine are highest in February, averaging 4.6 m/s (17 km/h), and lightest in September, at 3.1 m/s (11 km/h). The prevailing wind is from the SW.
What is the average temperature in Romilly-sur-Seine year round?
The average temperature in Romilly-sur-Seine over the whole year is 12°C. July is the hottest month, with highs of about 24°C; January is the coldest, with lows of about 3°C.