Climate averages 1991–2020
São Mateus 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 São Mateus: daytime highs average 25.3°C and nights cool to about 18.8°C. By daytime temperature it is the 11th warmest of the 12 months.
Expect about 48 mm of rain on roughly 11 days, which makes August a moderately wet month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 29 min on an average August day.
The nearest other city in this atlas is Linhares (78 km away). In August its highs average 25.8°C, about as warm as São Mateus, with 31 mm of rain.
Among the 448 cities listed in Brazil, São Mateus ranks joint 251st of 448 for the warmest August highs and 304th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; São Mateus is 0.9°C cooler than that mean.
From August to September, average highs rise by 1.2°C to 26.5°C, and monthly rainfall rises from 48 mm to 54 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 Mateus climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.5°C23.1°C | 23.1°C | 106 | 13.4 | 13.113 h |
| February | 29.9°C23.1°C | 23.1°C | 77 | 14.2 | 12.713 h |
| March | 29.4°C22.9°C | 22.9°C | 136 | 18.3 | 12.212 h |
| April | 28.1°C22.1°C | 22.1°C | 108 | 17.1 | 11.712 h |
| May | 26.6°C20.6°C | 20.6°C | 70 | 13.2 | 11.211 h |
| June | 25.6°C19.4°C | 19.4°C | 52 | 11.7 | 11.011 h |
| July | 24.9°C18.7°C | 18.7°C | 57 | 13.0 | 11.111 h |
| August, selected | 25.3°C18.8°C | 18.8°C | 48 | 11.1 | 11.511 h |
| September | 26.5°C20.0°C | 20.0°C | 54 | 11.0 | 12.012 h |
| October | 27.6°C21.2°C | 21.2°C | 96 | 13.4 | 12.513 h |
| November | 27.8°C21.9°C | 21.9°C | 183 | 17.7 | 13.013 h |
| December | 29.0°C22.7°C | 22.7°C | 146 | 15.7 | 13.213 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
- Linhares in AugustBrazil · 78 kmHigh 25.8°C · Low 18.0°C · 31 mm rain
- Colatina in AugustBrazil · 122 kmHigh 26.6°C · Low 17.9°C · 11 mm rain
- Aracruz in AugustBrazil · 130 kmHigh 25.3°C · Low 17.6°C · 30 mm rain
- Teixeira de Freitas in AugustBrazil · 132 kmHigh 25.9°C · Low 17.9°C · 29 mm rain
- Serra in AugustBrazil · 164 kmHigh 24.4°C · Low 18.1°C · 41 mm rain
- Cariacica in AugustBrazil · 181 kmHigh 24.2°C · Low 17.9°C · 47 mm rain
- Vila Velha in AugustBrazil · 185 kmHigh 24.4°C · Low 18.8°C · 41 mm rain
- Viana, Brazil in AugustBrazil · 197 kmHigh 25.0°C · Low 18.0°C · 43 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 Mateus) is explained once on the São Mateus year overview and on the Sources, method and limits page.