Annual mean 26°C · wettest around September · prevailing wind N
Warmest
35.2 °C
Coldest
29.1 °C
Wettest
100%
Windiest
4.8 m/s
Prevailing
N
4.0 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 Saint-Louis over the whole year is 26°C. October is the hottest month, with highs of about 34°C; January is the coldest, with lows of about 18°C. The rainy (wet) season in Saint-Louis runs from August to October, peaking in September with a 52% chance of rain on a given day. The dry season is November to July; January is the driest month, at 0%. Winds in Saint-Louis are highest in April, averaging 3.8 m/s (14 km/h), and lightest in November, at 2.6 m/s (9 km/h). The prevailing wind is from the N. The clearest skies in Saint-Louis come in April, when the sky is typically 29% covered; July is the cloudiest month, at 54%.
Month by month Saint-Louis 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
30°C
18°C
27°C
0%
40%
2.8 m/s
58
66
18
February
31°C
19°C
27°C
1%
35%
3.3 m/s
50
64
17
March
31°C
19°C
29°C
0%
33%
3.6 m/s
39
63
10
April
31°C
20°C
30°C
0%
29%
3.8 m/s
34
61
8
May
29°C
21°C
29°C
0%
37%
3.8 m/s
39
71
6
June
30°C
24°C
31°C
5%
44%
3.6 m/s
12
67
0
July
30°C
26°C
33°C
24%
54%
3.5 m/s
2
50
0
August
31°C
27°C
35°C
41%
54%
3.0 m/s
0
26
0
September
32°C
27°C
36°C
52%
50%
2.7 m/s
1
15
0
October
34°C
26°C
37°C
35%
40%
2.7 m/s
0
14
0
November
34°C
22°C
33°C
17%
49%
2.6 m/s
8
49
1
December
31°C
19°C
28°C
14%
40%
2.8 m/s
40
64
10
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-Louis weather by season
Year round, Saint-Louis has days of about 29°C at their warmest in May, its coolest month, and 34°C in October, its warmest; the coolest hours of the day run from 18°C to 27°C through the year, and the average temperature over the year is 26°C around the clock. Rain is most likely around September and least likely around January. 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-Louis weather in winterDecember to February
High 31°CLow 19°CRain 5%
Winter in Saint-Louis has typical daily highs of about 31°C and lows of about 19°C, with a 5% chance of rain on a given day.
Saint-Louis weather in springMarch to May
High 31°CLow 20°CRain 0%
Spring in Saint-Louis has typical daily highs of about 31°C and lows of about 20°C, with a 0% chance of rain on a given day.
Saint-Louis weather in summerJune to August
High 31°CLow 25°CRain 23%
Summer in Saint-Louis has typical daily highs of about 31°C and lows of about 25°C, with a 23% chance of rain on a given day.
Saint-Louis weather in autumnSeptember to November
High 33°CLow 25°CRain 35%
Autumn in Saint-Louis has typical daily highs of about 33°C and lows of about 25°C, with a 35% chance of rain on a given day.
When is the rainy season in Saint-Louis?
The rainy (wet) season in Saint-Louis runs from August to October, peaking in September with a 52% chance of rain on a given day. The dry season is November to July; January is the driest month, at 0%.
What time of year is Saint-Louis windiest?
Winds in Saint-Louis are highest in April, averaging 3.8 m/s (14 km/h), and lightest in November, at 2.6 m/s (9 km/h). The prevailing wind is from the N.
What is the average temperature in Saint-Louis year round?
The average temperature in Saint-Louis over the whole year is 26°C. October is the hottest month, with highs of about 34°C; January is the coldest, with lows of about 18°C.