São Luís Weather Year-Round — Best Time to Visit
São Luís, Brazil has hot weather year-round. The best time to visit is September (score: 87/100). Annual average high: 29.8°C, total rainfall: 1903mm.
When is the best time to visit São Luís?
87
September is the best month to visit São Luís with a travel score of 87/100 (Excellent).
Expect highs of 31.3°C, 4 rain days, and 11.8 hours of daily sunshine.
View September weather details →Travel Score by Month
67
Jan
66
Feb
65
Mar
65
Apr
67
May
68
Jun
72
Jul
84
Aug
87
Sep
86
Oct
84
Nov
76
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in São Luís each month?
29.8°C
Avg High
24.8°C
Avg Low
1903mm
Annual Rain
How much rain does São Luís get?
São Luís receives 1903mm of rain annually. The wettest month is typically March with 405mm, while September is the driest.
What is the weather like each month in São Luís?
January
67
29°C
Low: 25°C
24 rain days
Good
February
66
29°C
Low: 24°C
25 rain days
Good
March
65
28°C
Low: 24°C
29 rain days
Good
April
65
29°C
Low: 24°C
28 rain days
Good
May
67
29°C
Low: 24°C
26 rain days
Good
June
68
29°C
Low: 24°C
21 rain days
Good
July
72
30°C
Low: 25°C
17 rain days
Good
August
84
31°C
Low: 25°C
8 rain days
Excellent
September
Best time to visit87
31°C
Low: 25°C
4 rain days
Excellent
October
86
31°C
Low: 26°C
5 rain days
Excellent
November
84
31°C
Low: 26°C
7 rain days
Excellent
December
76
31°C
Low: 26°C
14 rain days
Good
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Data based on 1994–2024 averages · Last updated: 2024-12-31