Measurements:
°C
°F
CURRENT WEATHER
19:35
Sao Luis
84°F
SW 15 mph
Feels like: 90°F
Precip: 11%
World Resorts Brazil Sao Luis Weather

7 Day Weather Forecast

09.28
mon
DAY
88°F
SW 19 mph
precip
5%
NIGHT
82°F
SW 14 mph
precip
12%
09.29
tue
DAY
88°F
SW 20 mph
precip
5%
NIGHT
82°F
SW 19 mph
precip
10%
09.30
wed
DAY
86°F
SW 19 mph
precip
19%
NIGHT
82°F
SW 19 mph
precip
21%
10.01
thu
DAY
88°F
SW 23 mph
precip
5%
NIGHT
82°F
SW 19 mph
precip
8%
10.02
fri
DAY
88°F
SW 21 mph
precip
5%
NIGHT
82°F
SW 18 mph
precip
15%
10.03
sat
DAY
88°F
SW 21 mph
precip
13%
NIGHT
84°F
SW 21 mph
precip
21%
10.04
sun
DAY
88°F
SW 22 mph
precip
5%
NIGHT
82°F
SW 21 mph
precip
10%

Sao Luis Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Sao Luis was 28.3°F. The maximum and minimum values were 27.9°F and 28.9°F respectively.

Sao Luis on the Weather Map

Best Time to Visit Sao Luis
The most sunny months:
September 10 days
August 9 days
October 6 days
The most warm months:
October 91.9 °F
September 91.7 °F
August 90.9 °F
Warmest sea temperature:
May 88.6 °F
June 88.5 °F
July 88.0 °F
The most cold months:
March 85.6 °F
February 86.1 °F
January 86.6 °F
The most rainy months:
March 19 days
April 16 days
February 12 days
The most windy months:
September 11 mph
October 10 mph
November 9 mph
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