Annual mean 16°C · wettest around November · prevailing wind NW
Warmest
31.0 °C
Coldest
9.5 °C
Wettest
12%
Windiest
6.5 m/s
Prevailing
NW
5.8 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 Istres over the whole year is 16°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 5°C. Istres has no sharply defined rainy season: the chance of rain on a given day runs from 1% in July, the driest month, to 8% in November, the wettest. Winds in Istres are highest in January, averaging 5.3 m/s (19 km/h), and lightest in September, at 4.3 m/s (15 km/h). The prevailing wind is from the NW. The clearest skies in Istres come in July, when the sky is typically 61% covered; May is the cloudiest month, at 72%.
Month by month Istres 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
10°C
5°C
5°C
4%
71%
5.3 m/s
2
0
45
February
13°C
6°C
8°C
4%
70%
4.9 m/s
8
0
61
March
15°C
7°C
10°C
4%
66%
4.9 m/s
21
0
74
April
18°C
10°C
13°C
6%
71%
5.0 m/s
49
1
78
May
22°C
14°C
18°C
6%
72%
4.8 m/s
74
10
73
June
28°C
20°C
25°C
3%
62%
4.6 m/s
64
50
32
July
30°C
22°C
28°C
1%
61%
4.9 m/s
41
63
16
August
30°C
21°C
28°C
1%
64%
4.6 m/s
38
60
17
September
26°C
17°C
23°C
4%
66%
4.3 m/s
65
41
42
October
21°C
14°C
18°C
7%
69%
4.5 m/s
72
11
72
November
15°C
9°C
10°C
8%
72%
4.6 m/s
27
0
71
December
11°C
6°C
7°C
6%
72%
4.5 m/s
5
0
55
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 Istres weather by season
Year round, Istres has days of about 10°C at their warmest in January, its coolest month, and 30°C in July, its warmest; the coolest hours of the day run from 5°C to 22°C through the year, and the average temperature over the year is 16°C around the clock. Rain is most likely around November 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.
Istres weather in winterDecember to February
High 12°CLow 6°CRain 5%
Winter in Istres has typical daily highs of about 12°C and lows of about 6°C, with a 5% chance of rain on a given day.
Istres weather in springMarch to May
High 19°CLow 11°CRain 5%
Spring in Istres has typical daily highs of about 19°C and lows of about 11°C, with a 5% chance of rain on a given day.
Istres weather in summerJune to August
High 29°CLow 21°CRain 2%
Summer in Istres has typical daily highs of about 29°C and lows of about 21°C, with a 2% chance of rain on a given day.
Istres weather in autumnSeptember to November
High 20°CLow 13°CRain 6%
Autumn in Istres has typical daily highs of about 20°C and lows of about 13°C, with a 6% chance of rain on a given day.
When is the rainy season in Istres?
Istres has no sharply defined rainy season: the chance of rain on a given day runs from 1% in July, the driest month, to 8% in November, the wettest.
What time of year is Istres windiest?
Winds in Istres are highest in January, averaging 5.3 m/s (19 km/h), and lightest in September, at 4.3 m/s (15 km/h). The prevailing wind is from the NW.
What is the average temperature in Istres year round?
The average temperature in Istres over the whole year is 16°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about 5°C.