Annual mean 10°C · wettest around December · prevailing wind W
Warmest
24.2 °C
Coldest
1.7 °C
Wettest
32%
Windiest
4.4 m/s
Prevailing
W
3.5 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 Saint-Julien-en-Genevois 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 -0°C. The rainy (wet) season in Saint-Julien-en-Genevois runs from November to January, peaking in December with a 27% chance of rain on a given day. The dry season is June to October; August is the driest month, at 12%. Winds in Saint-Julien-en-Genevois are highest in January, averaging 3.5 m/s (13 km/h), and lightest in September, at 2.7 m/s (10 km/h). The prevailing wind is from the W. The clearest skies in Saint-Julien-en-Genevois come in July, when the sky is typically 62% covered; December is the cloudiest month, at 75%.
Month by month Saint-Julien-en-Genevois 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
-0°C
-1°C
24%
74%
3.5 m/s
0
0
13
February
6°C
1°C
2°C
18%
69%
3.4 m/s
1
0
28
March
8°C
2°C
5°C
20%
68%
3.4 m/s
6
0
43
April
12°C
5°C
9°C
16%
69%
3.2 m/s
25
0
62
May
16°C
10°C
13°C
22%
70%
3.3 m/s
46
4
69
June
22°C
15°C
20°C
19%
65%
3.1 m/s
64
28
52
July
24°C
16°C
22°C
13%
62%
3.0 m/s
65
39
44
August
24°C
15°C
22°C
12%
64%
2.8 m/s
61
40
44
September
19°C
11°C
17°C
15%
66%
2.7 m/s
63
17
64
October
14°C
8°C
12°C
17%
68%
3.0 m/s
39
1
73
November
8°C
4°C
4°C
22%
74%
3.1 m/s
3
0
38
December
4°C
1°C
0°C
27%
75%
3.1 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 Saint-Julien-en-Genevois weather by season
Year round, Saint-Julien-en-Genevois 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 -0°C to 16°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.
Saint-Julien-en-Genevois weather in winterDecember to February
High 4°CLow 1°CRain 23%
Winter in Saint-Julien-en-Genevois has typical daily highs of about 4°C and lows of about 1°C, with a 23% chance of rain on a given day.
Saint-Julien-en-Genevois weather in springMarch to May
High 12°CLow 6°CRain 19%
Spring in Saint-Julien-en-Genevois has typical daily highs of about 12°C and lows of about 6°C, with a 19% chance of rain on a given day.
Saint-Julien-en-Genevois weather in summerJune to August
High 23°CLow 15°CRain 14%
Summer in Saint-Julien-en-Genevois has typical daily highs of about 23°C and lows of about 15°C, with a 14% chance of rain on a given day.
Saint-Julien-en-Genevois weather in autumnSeptember to November
High 14°CLow 7°CRain 18%
Autumn in Saint-Julien-en-Genevois has typical daily highs of about 14°C and lows of about 7°C, with a 18% chance of rain on a given day.
When is the rainy season in Saint-Julien-en-Genevois?
The rainy (wet) season in Saint-Julien-en-Genevois runs from November to January, peaking in December with a 27% chance of rain on a given day. The dry season is June to October; August is the driest month, at 12%.
What time of year is Saint-Julien-en-Genevois windiest?
Winds in Saint-Julien-en-Genevois are highest in January, averaging 3.5 m/s (13 km/h), and lightest in September, at 2.7 m/s (10 km/h). The prevailing wind is from the W.
What is the average temperature in Saint-Julien-en-Genevois year round?
The average temperature in Saint-Julien-en-Genevois 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 -0°C.