Measurements:
°C
°F
CURRENT WEATHER
17:25
Sao Luis
84°F
SW 6 mph
Feels like: 90°F
Precip: 0%
World Resorts Brazil Sao Luis Weather

7 Day Weather Forecast

05.22
fri
DAY
88°F
SW 6 mph
precip
100%
NIGHT
82°F
SW 6 mph
precip
0%
05.23
sat
DAY
88°F
W 6 mph
precip
100%
NIGHT
84°F
S 8 mph
precip
0%
05.24
sun
DAY
88°F
W 7 mph
precip
100%
NIGHT
82°F
S 7 mph
precip
0%
05.25
mon
DAY
88°F
W 10 mph
precip
100%
NIGHT
82°F
SW 10 mph
precip
0%
05.26
tue
DAY
88°F
W 9 mph
precip
100%
NIGHT
82°F
SW 8 mph
precip
0%
05.27
wed
DAY
88°F
W 12 mph
precip
85%
NIGHT
82°F
W 10 mph
precip
100%
05.28
thu
DAY
88°F
W 9 mph
precip
0%
NIGHT
84°F
W 12 mph
precip
0%

Sao Luis Sea Water Temperature in May, °F

Select Year: 2026 2025 2024

The average sea surface temperature in May 2026 for Sao Luis was 29.0°F. The maximum and minimum values were 28.8°F and 29.4°F respectively.

Sao Luis on the Weather Map

Best Time to Visit Sao Luis
The most sunny months:
September 11 days
August 10 days
October 6 days
The most warm months:
September 92.5 °F
October 91.9 °F
August 91.6 °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:
October 10 mph
September 10 mph
November 9 mph
more details