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Santo Agostinho Weather by Month
Average temperatures, rainfall and humidity for Santo Agostinho, Brazil, month by month, built from OpenWeather's historical records. Use it to see what a typical Santo Agostinho month looks like before you travel — then check the live Santo Agostinho forecast for the days ahead.
Warmest month
March
30°C average high
Coolest month
August
23°C average low
Wettest month
May
78 mm of rain
Driest month
October
21 mm of rain
Average temperature and rainfall in Santo Agostinho by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 29°C | 25°C | 18°C / 32°C | 38 mm | 78% | 14 km/h |
| February | 29°C | 25°C | 17°C / 32°C | 37 mm | 78% | 13 km/h |
| March | 30°C | 25°C | 20°C / 33°C | 45 mm | 79% | 13 km/h |
| April | 29°C | 25°C | 20°C / 32°C | 65 mm | 81% | 13 km/h |
| May | 29°C | 24°C | 18°C / 31°C | 78 mm | 84% | 13 km/h |
| June | 28°C | 23°C | 18°C / 31°C | 62 mm | 87% | 15 km/h |
| July | 27°C | 23°C | 19°C / 30°C | 63 mm | 87% | 17 km/h |
| August | 27°C | 23°C | 19°C / 30°C | 49 mm | 84% | 16 km/h |
| September | 27°C | 23°C | 16°C / 30°C | 30 mm | 82% | 16 km/h |
| October | 28°C | 24°C | 20°C / 31°C | 21 mm | 79% | 16 km/h |
| November | 29°C | 25°C | 18°C / 32°C | 23 mm | 78% | 16 km/h |
| December | 29°C | 25°C | 18°C / 32°C | 34 mm | 78% | 15 km/h |
Best time to visit Santo Agostinho
The most comfortable time to visit Santo Agostinho is generally September to November, balancing mild daytime temperatures against the driest stretch of the year. Temperatures stay fairly even all year and rain concentrates around May, totalling about 546 mm a year.
Travellers who prefer heat should aim for March, when highs average 30°C. May is the month to avoid if rain would spoil your plans — it averages 78 mm, roughly 4× the rainfall of October.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Santo Agostinho forecast for what is happening now.