Measurements:
°C
°F
CURRENT WEATHER
20:06
Sao Luis
84°F
SW 12 mph
Feels like: 90°F
Precip: 0%
World Resorts Brazil Sao Luis Weather

7 Day Weather Forecast

12.15
mon
DAY
90°F
SW 16 mph
precip
0%
NIGHT
82°F
SW 12 mph
precip
0%
12.16
tue
DAY
88°F
SW 16 mph
precip
0%
NIGHT
82°F
SW 15 mph
precip
0%
12.17
wed
DAY
88°F
SW 15 mph
precip
0%
NIGHT
82°F
SW 13 mph
precip
0%
12.18
thu
DAY
88°F
SW 18 mph
precip
0%
NIGHT
84°F
SW 14 mph
precip
0%
12.19
fri
DAY
88°F
SW 19 mph
precip
0%
NIGHT
82°F
SW 11 mph
precip
100%
12.20
sat
DAY
88°F
SW 19 mph
precip
100%
NIGHT
84°F
SW 13 mph
precip
100%
12.21
sun
DAY
88°F
SW 19 mph
precip
100%
NIGHT
80°F
W 7 mph
precip
100%

Sao Luis Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Sao Luis was 27.9°F. The maximum and minimum values were 27.5°F and 28.1°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 88.7 °F
June 88.5 °F
July 88.0 °F
The most cold months:
March 85.6 °F
February 86.2 °F
January 86.6 °F
The most rainy months:
March 21 days
April 16 days
January 13 days
The most windy months:
October 10 mph
September 10 mph
November 9 mph
more details