Climate averages 1991–2020
Itanhaém weather
in August.
A warm, moderately 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 Itanhaém: daytime highs average 23.1°C and nights cool to about 15.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 88 mm of rain on roughly 10 days, which makes August a moderately 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 Praia Grande (44 km away). In August its highs average 23.7°C, 0.6°C warmer than Itanhaém, with 71 mm of rain.
Among the 448 cities listed in Brazil, Itanhaém ranks joint 353rd of 448 for the warmest August highs and joint 374th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Itanhaém is 3.1°C cooler than that mean.
From August to September, average highs rise by 0.7°C to 23.8°C, and monthly rainfall rises from 88 mm to 141 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
Itanhaém climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.3°C22.7°C | 22.7°C | 227 | 22.9 | 13.413 h |
| February | 28.6°C22.8°C | 22.8°C | 213 | 19.8 | 12.913 h |
| March | 27.6°C22.1°C | 22.1°C | 212 | 21.5 | 12.212 h |
| April | 26.4°C20.4°C | 20.4°C | 137 | 14.5 | 11.512 h |
| May | 24.1°C17.8°C | 17.8°C | 125 | 13.6 | 11.011 h |
| June | 23.4°C16.4°C | 16.4°C | 101 | 10.1 | 10.711 h |
| July | 22.8°C15.6°C | 15.6°C | 107 | 10.3 | 10.811 h |
| August, selected | 23.1°C15.8°C | 15.8°C | 88 | 10.2 | 11.311 h |
| September | 23.8°C17.2°C | 17.2°C | 141 | 14.2 | 11.912 h |
| October | 24.9°C18.8°C | 18.8°C | 155 | 17.0 | 12.613 h |
| November | 25.7°C19.8°C | 19.8°C | 163 | 16.9 | 13.313 h |
| December | 27.4°C21.5°C | 21.5°C | 174 | 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
August in nearby cities
- Praia Grande in AugustBrazil · 44 kmHigh 23.7°C · Low 16.5°C · 71 mm rain
- São Vicente in AugustBrazil · 47 kmHigh 23.9°C · Low 16.7°C · 71 mm rain
- Itapecerica da Serra in AugustBrazil · 52 kmHigh 21.3°C · Low 11.7°C · 51 mm rain
- Santos in AugustBrazil · 52 kmHigh 23.4°C · Low 16.8°C · 94 mm rain
- São Bernardo do Campo in AugustBrazil · 59 kmHigh 22.0°C · Low 12.6°C · 68 mm rain
- Embu das Artes in AugustBrazil · 60 kmHigh 22.7°C · Low 12.8°C · 51 mm rain
- Taboão da Serra in AugustBrazil · 62 kmHigh 22.5°C · Low 12.5°C · 51 mm rain
- Santo André in AugustBrazil · 63 kmHigh 22.0°C · Low 12.9°C · 68 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 Itanhaém) is explained once on the Itanhaém year overview and on the Sources, method and limits page.