Climate averages 1991–2020
Santos weather
in August.
A warm, wet month: the 11th warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Santos: daytime highs average 23.4°C and nights cool to about 16.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 94 mm of rain on roughly 10 days, which makes August a wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 17 min on an average August day.
The nearest other city in this atlas is São Vicente (6 km away). In August its highs average 23.9°C, 0.5°C warmer than Santos, with 71 mm of rain.
Among the 448 cities listed in Brazil, Santos ranks joint 342nd of 448 for the warmest August highs and joint 386th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Santos is 2.8°C cooler than that mean.
From August to September, average highs rise by 0.6°C to 24.0°C, and monthly rainfall rises from 94 mm to 142 mm.
The annual picture
August 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
Santos climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.4°C23.3°C | 23.3°C | 225 | 20.7 | 13.413 h |
| February | 28.7°C23.5°C | 23.5°C | 202 | 17.4 | 12.913 h |
| March | 27.7°C22.8°C | 22.8°C | 206 | 19.4 | 12.212 h |
| April | 26.5°C21.2°C | 21.2°C | 127 | 13.2 | 11.512 h |
| May | 24.4°C18.7°C | 18.7°C | 125 | 12.7 | 11.011 h |
| June | 23.8°C17.4°C | 17.4°C | 97 | 10.1 | 10.711 h |
| July | 23.2°C16.6°C | 16.6°C | 115 | 9.9 | 10.811 h |
| August, selected | 23.4°C16.8°C | 16.8°C | 94 | 10.2 | 11.311 h |
| September | 24.0°C18.0°C | 18.0°C | 142 | 14.1 | 11.912 h |
| October | 25.0°C19.4°C | 19.4°C | 158 | 16.1 | 12.613 h |
| November | 25.6°C20.4°C | 20.4°C | 174 | 16.7 | 13.313 h |
| December | 27.4°C22.2°C | 22.2°C | 179 | 18.0 | 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
August in nearby cities
- São Vicente in AugustBrazil · 6 kmHigh 23.9°C · Low 16.7°C · 71 mm rain
- Praia Grande in AugustBrazil · 9 kmHigh 23.7°C · Low 16.5°C · 71 mm rain
- Ribeirão Pires in AugustBrazil · 29 kmHigh 22.2°C · Low 13.2°C · 68 mm rain
- São Bernardo do Campo in AugustBrazil · 38 kmHigh 22.0°C · Low 12.6°C · 68 mm rain
- Santo André in AugustBrazil · 39 kmHigh 22.0°C · Low 12.9°C · 68 mm rain
- São Caetano do Sul in AugustBrazil · 44 kmHigh 22.6°C · Low 12.8°C · 40 mm rain
- Ferraz de Vasconcelos in AugustBrazil · 47 kmHigh 22.8°C · Low 12.9°C · 42 mm rain
- Mogi das Cruzes in AugustBrazil · 51 kmHigh 22.5°C · Low 12.4°C · 42 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 Santos) is explained once on the Santos year overview and on the Sources, method and limits page.