Sao Paulo Weather: September
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Average Day Temperature: | 84.4°F |
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Average Night Temperature: | 65.7°F |
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Sea Water Temperature: | 72.8°F |
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Number of Sunny Days: | 15 days |
| Sunshine Hours: | 11.7 - 12.3 hours | |
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Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.9 in | |
| detailed information | ||
forecast
| Sao Paulo |
Temperature
| Sao Paulo |
Air Temperature in September, °F
The highest day temperature in September 2025 was 97°F. The lowest night temperature was 54°F. The average values for day and night temperatures during September were 80.9°F и 63.7°F respectivly.
Sao Paulo Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Sao Paulo was 72.2°F. The maximum and minimum values were 70.4°F and 73.4°F respectively.
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Sao Paulo is 1.9 in.
The average wind speed in September is 7.2 mph. This value is relatively stable throughout the year.
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 Paulo in September is 7.7 hours.
| Anchieta | ![]() |
+72 |
| Armacao dos Buzios | ![]() |
+72 |
| Buzios | ![]() |
+72 |
| Florianopolis | ![]() |
+70 |
| Fortaleza | ![]() |
+84 |
| Itajai | ![]() |
+70 |
| Jericoacoara | ![]() |
+80 |
| Recife | ![]() |
+84 |
| Rio de Janeiro | ![]() |
+74 |
| Rio Grande | ![]() |
+70 |
| Salvador | ![]() |
+82 |
| Santos | ![]() |
+72 |
| Sao Paulo | ![]() |
+68 |
| Unamar | ![]() |
+74 |
| Xangri-la | ![]() |
+68 |
| 0900 | ![]() |
82°F | W 6 mph |
| 1200 | ![]() |
90°F | N 11 mph |
| 1500 | ![]() |
82°F | NW 14 mph |
| 1800 | ![]() |
72°F | NW 11 mph |
| 2100 | ![]() |
68°F | W 7 mph |
| 0000 | ![]() |
66°F | W 6 mph |
| 0300 | ![]() |
66°F | SW 4 mph |
| 0600 | ![]() |
70°F | W 3 mph |

































