Climate averages 1991–2020
São Cristóvão weather
in August.
A warm, wet month: the coolest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in São Cristóvão: daytime highs average 25.2°C and nights cool to about 21.8°C. By daytime temperature it is the coolest month of the year.
Expect about 98 mm of rain on roughly 22 days, which makes August a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 45 min on an average August day.
The nearest other city in this atlas is Aracaju (19 km away). In August its highs average 25.3°C, about as warm as São Cristóvão, with 103 mm of rain.
Among the 448 cities listed in Brazil, São Cristóvão ranks joint 260th of 448 for the warmest August highs and joint 397th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; São Cristóvão is 1.0°C cooler than that mean.
From August to September, average highs rise by 0.8°C to 26.0°C, and monthly rainfall falls from 98 mm to 64 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 Cristóvão climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.9°C24.4°C | 24.4°C | 56 | 15.1 | 12.713 h |
| February | 29.0°C24.6°C | 24.6°C | 64 | 16.6 | 12.512 h |
| March | 29.2°C24.7°C | 24.7°C | 71 | 18.1 | 12.212 h |
| April | 28.4°C24.3°C | 24.3°C | 112 | 20.3 | 11.912 h |
| May | 27.2°C23.6°C | 23.6°C | 157 | 22.9 | 11.612 h |
| June | 26.0°C22.7°C | 22.7°C | 148 | 24.0 | 11.511 h |
| July | 25.3°C22.0°C | 22.0°C | 125 | 23.9 | 11.512 h |
| August, selected | 25.2°C21.8°C | 21.8°C | 98 | 22.1 | 11.712 h |
| September | 26.0°C22.3°C | 22.3°C | 64 | 17.2 | 12.012 h |
| October | 27.2°C23.2°C | 23.2°C | 52 | 13.9 | 12.312 h |
| November | 28.1°C23.8°C | 23.8°C | 41 | 11.1 | 12.613 h |
| December | 28.8°C24.3°C | 24.3°C | 33 | 10.1 | 12.813 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
- Aracaju in AugustBrazil · 19 kmHigh 25.3°C · Low 21.9°C · 103 mm rain
- Itabaiana in AugustBrazil · 44 kmHigh 25.5°C · Low 19.2°C · 63 mm rain
- Lagarto in AugustBrazil · 50 kmHigh 25.8°C · Low 19.4°C · 62 mm rain
- Arapiraca in AugustBrazil · 152 kmHigh 25.7°C · Low 19.1°C · 42 mm rain
- Alagoinhas in AugustBrazil · 182 kmHigh 26.1°C · Low 19.1°C · 49 mm rain
- Serrinha in AugustBrazil · 209 kmHigh 26.3°C · Low 17.8°C · 26 mm rain
- Paulo Afonso in AugustBrazil · 210 kmHigh 28.0°C · Low 19.3°C · 18 mm rain
- Dias d'Ávila in AugustBrazil · 214 kmHigh 26.0°C · Low 20.3°C · 64 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 Cristóvão) is explained once on the São Cristóvão year overview and on the Sources, method and limits page.