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Climate · São Paulo

São Paulo in September

Warm and damp, as the days lengthen.

Typical weather, averaged over 30 years

September in São Paulo is warm: highs near 79°F, lows near 58°F. Rain falls on about three days a week, more often as the month goes on, and the days lengthen by 29 minutes from the first week to the last.September in São Paulo is warm: highs near 26°C, lows near 14°C. Rain falls on about three days a week, more often as the month goes on, and the days lengthen by 29 minutes from the first week to the last.

High
79°F26°Caverage
Low
58°F14°Caverage
Wet days
3a week · 39% of days
Daylight
12h 00mon average

Is September a good time to visit São Paulo?

A good month, just outside São Paulo's best months, which run from May to August.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 79°F in September, against 74°F to 83°F through the year.Highs near 26°C in September, against 23°C to 28°C through the year.

Chance of a wet day

39% of days in September, against 23% to 87% through the year.

Cloud cover

45% cover in September, against 39% to 74% through the year.

Daylight

12h 00m in September, against 10h 42m to 13h 34m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August76°24°low 55°low 13°2 wet days a weekRain on about two days a week.
  2. September79°26°low 58°low 14°3 wet days a weekRain on about three days a week.
  3. October79°26°low 61°low 16°4 wet days a weekRain on about four days a week.

Where São Paulo sits, in September

America/Sao Paulo
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:04 AMsets 6:00 PM
Above the sea
760 mupland
Latitude
23.6°Ssouthern hemisphere
Nearest of ours
Rio de Janeiro357 km east

The land around São Paulo, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Brazil in September

high · low · wet days
See September on the planning mapThe whole year in São Paulo

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest São Paulo. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.