World Resorts Brazil Sao Luis Weather

Sao Luis 7 Days Forecast

15.09
tue
Day
84°F
SW 19 mph
Precip.
18%
Night
79°F
SW 16 mph
Precip.
11%
16.09
wed
Day
84°F
SW 18 mph
Precip.
17%
Night
79°F
SW 17 mph
Precip.
10%
17.09
thu
Day
82°F
SW 21 mph
Precip.
7%
Night
79°F
SW 21 mph
Precip.
9%
18.09
fri
Day
84°F
SW 17 mph
Precip.
4%
Night
79°F
SW 21 mph
Precip.
17%
19.09
sat
Day
84°F
SW 19 mph
Precip.
11%
Night
79°F
SW 17 mph
Precip.
8%
20.09
sun
Day
84°F
SW 21 mph
Precip.
4%
Night
79°F
SW 17 mph
Precip.
10%
21.09
mon
Day
84°F
SW 20 mph
Precip.
12%
Night
79°F
SW 17 mph
Precip.
13%

Sea water temperature in September, °F

Show year:
2026
2025
2024

The average sea water temperature in September of 2026 was 83.0°F. The highest and lowest sea temperatures during the month were 83.3°F and 82.4°F.

Air temperature in Sao Luis, °F

Precipitation total in Sao Luis, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Sao Luis

Sunniest months:
September 11 days
August 9 days
October 6 days
Warmest months:
September 88.3 °F
October 87.7 °F
August 86.8 °F
Warmest sea temp:
May 84.8 °F
June 84.7 °F
July 84.2 °F
Coldest months:
March 82.0 °F
February 82.5 °F
January 82.9 °F
Rainiest months:
March 19 days
April 16 days
February 12 days
Windiest months:
October 10.4 mph
September 10.1 mph
November 9.4 mph

Sao Luis on a weather map

Current weather
12:46
Sao Luis
+84°F
SW 19 mph
Feels like: +90°F
Precip.: 18%
Places in Brazil:
Name
°F
Balneario Camboriu
+72°F
Buzios
+73°F
Joao Pessoa
+81°F
Ilha de Itamaraca
+81°F
Natal
+86°F
Recife
+84°F
Rio de Janeiro
+68°F
Salvador
+79°F
Sao Jose de Ribamar
+82°F
Sao Paulo
+57°F
Sao Sebastiao
+63°F
Santos
+66°F
Florianopolis
+66°F
Fortaleza
+82°F
Xangri-la
+59°F
all places
24 Hours Forecast
Sao Luis
Local time: 12:46
September 15, tuesday
1500
82°F
SW
22 mph
1800
81°F
SW
16 mph
2100
81°F
SW
16 mph
September 16, wednesday
0000
79°F
SW
16 mph
0300
79°F
SW
16 mph
0600
79°F
SW
18 mph
0900
81°F
W
18 mph
1200
84°F
SW
18 mph
Units of measurement: °C / °F