Climate averages 1991–2020
São Sebastião (Sao Paulo), Brazil weather
in May.
A warm, wet month: the 8th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in São Sebastião (Sao Paulo), Brazil: daytime highs average 24.1°C and nights cool to about 19.9°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 115 mm of rain on roughly 12 days, which makes May a wet month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 59 min on an average May day.
The nearest other city in this atlas is Caraguatatuba (16 km away). In May its highs average 24.7°C, 0.6°C warmer than São Sebastião (Sao Paulo), Brazil, with 89 mm of rain.
Among the 448 cities listed in Brazil, São Sebastião (Sao Paulo), Brazil ranks joint 284th of 448 for the warmest May highs and joint 342nd of 448 for the driest May (rainfall, lowest first). The mean May high of those 448 cities is 25.3°C; São Sebastião (Sao Paulo), Brazil is 1.2°C cooler than that mean.
From May to June, average highs fall by 0.6°C to 23.5°C, and monthly rainfall falls from 115 mm to 82 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
São Sebastião (Sao Paulo), Brazil climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.8°C23.9°C | 23.9°C | 277 | 22.3 | 13.413 h |
| February | 28.1°C24.1°C | 24.1°C | 231 | 19.7 | 12.913 h |
| March | 27.2°C23.4°C | 23.4°C | 236 | 20.4 | 12.212 h |
| April | 26.0°C22.0°C | 22.0°C | 130 | 13.7 | 11.612 h |
| May, selected | 24.1°C19.9°C | 19.9°C | 115 | 11.8 | 11.011 h |
| June | 23.5°C18.7°C | 18.7°C | 82 | 9.5 | 10.711 h |
| July | 22.9°C18.0°C | 18.0°C | 92 | 8.7 | 10.811 h |
| August | 23.0°C18.1°C | 18.1°C | 76 | 8.9 | 11.311 h |
| September | 23.4°C19.0°C | 19.0°C | 132 | 13.8 | 11.912 h |
| October | 24.3°C20.2°C | 20.2°C | 146 | 15.2 | 12.613 h |
| November | 24.9°C21.0°C | 21.0°C | 187 | 17.5 | 13.213 h |
| December | 26.7°C22.7°C | 22.7°C | 214 | 19.2 | 13.614 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Caraguatatuba in MayBrazil · 16 kmHigh 24.7°C · Low 19.3°C · 89 mm rain
- Ubatuba in MayBrazil · 50 kmHigh 23.5°C · Low 19.0°C · 125 mm rain
- Jacareí in MayBrazil · 76 kmHigh 23.0°C · Low 14.3°C · 57 mm rain
- Caçapava in MayBrazil · 79 kmHigh 23.2°C · Low 14.2°C · 60 mm rain
- São José dos Campos in MayBrazil · 81 kmHigh 23.2°C · Low 14.3°C · 57 mm rain
- Taubaté in MayBrazil · 83 kmHigh 23.1°C · Low 13.8°C · 56 mm rain
- Mogi das Cruzes in MayBrazil · 84 kmHigh 21.9°C · Low 13.9°C · 65 mm rain
- Pindamonhangaba in MayBrazil · 93 kmHigh 23.6°C · Low 14.2°C · 56 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for São Sebastião) is explained once on the São Sebastião (Sao Paulo), Brazil year overview and on the Sources, method and limits page.