Climate averages 1991–2020
São José de Ribamar weather
in August.
A hot, fairly dry month: the 3rd warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in São José de Ribamar: daytime highs average 29.8°C and nights cool to about 25.6°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 25 mm of rain on roughly 8 days, which makes August a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 02 min on an average August day.
The nearest other city in this atlas is São Luís (27 km away). In August its highs average 30.6°C, 0.7°C warmer than São José de Ribamar, with 28 mm of rain.
Among the 448 cities listed in Brazil, São José de Ribamar ranks joint 94th of 448 for the warmest August highs and joint 168th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; São José de Ribamar is 3.6°C warmer than that mean.
From August to September, average highs rise by 0.2°C to 30.1°C, and monthly rainfall falls from 25 mm to 11 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
São José de Ribamar climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.4°C25.0°C | 25.0°C | 229 | 25.4 | 12.212 h |
| February | 28.0°C24.7°C | 24.7°C | 319 | 26.2 | 12.212 h |
| March | 27.9°C24.6°C | 24.6°C | 452 | 30.2 | 12.112 h |
| April | 28.1°C24.6°C | 24.6°C | 437 | 28.7 | 12.112 h |
| May | 28.6°C25.0°C | 25.0°C | 292 | 26.5 | 12.012 h |
| June | 28.9°C25.1°C | 25.1°C | 146 | 21.8 | 12.012 h |
| July | 29.1°C25.2°C | 25.2°C | 94 | 18.4 | 12.012 h |
| August, selected | 29.8°C25.6°C | 25.6°C | 25 | 7.5 | 12.012 h |
| September | 30.1°C25.8°C | 25.8°C | 11 | 2.8 | 12.112 h |
| October | 30.0°C25.9°C | 25.9°C | 15 | 3.7 | 12.212 h |
| November | 29.7°C26.0°C | 26.0°C | 28 | 6.3 | 12.212 h |
| December | 29.3°C25.8°C | 25.8°C | 75 | 15.0 | 12.312 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 Luís in AugustBrazil · 27 kmHigh 30.6°C · Low 25.3°C · 28 mm rain
- Pinheiro in AugustBrazil · 114 kmHigh 30.8°C · Low 23.6°C · 27 mm rain
- Chapadinha in AugustBrazil · 153 kmHigh 33.6°C · Low 23.6°C · 3.8 mm rain
- Santa Inês in AugustBrazil · 192 kmHigh 33.0°C · Low 23.6°C · 11 mm rain
- Bacabal in AugustBrazil · 203 kmHigh 33.9°C · Low 23.9°C · 5.4 mm rain
- Codó in AugustBrazil · 212 kmHigh 34.0°C · Low 23.5°C · 3.7 mm rain
- Parnaíba in AugustBrazil · 257 kmHigh 33.4°C · Low 24.8°C · 2.6 mm rain
- Caxias in AugustBrazil · 268 kmHigh 34.8°C · Low 23.3°C · 3.0 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 José de Ribamar) is explained once on the São José de Ribamar year overview and on the Sources, method and limits page.