Sao Luis Weather: September
 |
Average Day Temperature: | 91.7°F |
|
Average Night Temperature: | 80.5°F |
|
Sea Water Temperature: | 86.2°F |
|
Number of Sunny Days: | 10 days |
| Sunshine Hours: | 12.1 - 12.1 hours | |
|
Number of Rainy Days: | 0 days |
| Precipitation Totals: | 0.1 in | |
| detailed information | ||
forecast
| Sao Luis |
Temperature
| Sao Luis |
Air Temperature in September, °F
The highest day temperature in September 2026 was 90°F. The lowest night temperature was 80°F. The average values for day and night temperatures during September were 86.9°F и 82.2°F respectivly.
Sao Luis Water Sea Temperature in September, °F
The average sea surface temperature in September 2026 for Sao Luis was 86.5°F. The maximum and minimum values were 85.8°F and 87.8°F respectively.
Most of the days in September are cloudy but you can also expect sunny or gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Sao Luis is 0.1 in. It makes september the least rainy month of the year.
The average wind speed in September is 11.1 mph. It makes September the most windy month of the year for Sao Luis.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Sao Luis in September is 7.4 hours.
Sao Luis on the Weather Map
| Balneario Camboriu |  |
+48 |
| Buzios |  |
+70 |
| Duque de Caxias |  |
+70 |
| Florianopolis | |
+54 |
| Fortaleza | |
+82 |
| Garopaba | |
+46 |
| Joao Pessoa | |
+82 |
| Recife | |
+78 |
| Rio de Janeiro | |
+72 |
| Salvador | |
+80 |
| Santos | |
+68 |
| Sao Jose de Ribamar | |
+84 |
| Sao Paulo | |
+64 |
| Sao Sebastiao | |
+66 |
| Xangri-la | |
+56 |
| 0300 |  |
82°F | SW 16 mph |
| 0600 |  |
82°F | SW 14 mph |
| 0900 |  |
86°F | SW 16 mph |
| 1200 |  |
88°F | SW 20 mph |
| 1500 |  |
86°F | SW 21 mph |
| 1800 |  |
84°F | SW 16 mph |
| 2100 | |
84°F | SW 15 mph |
| 0000 | |
84°F | SW 16 mph |