Climate averages 1991–2020
Fortaleza weather
in August.
A hot, very dry month: the 4th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Fortaleza: daytime highs average 30.1°C and nights cool to about 24.1°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 8.0 mm of rain on roughly 2 days, which makes August a very dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 00 min on an average August day.
The nearest other city in this atlas is Caucaia (12 km away). In August its highs average 30.4°C, about as warm as Fortaleza, with 4.2 mm of rain.
Among the 448 cities listed in Brazil, Fortaleza ranks joint 85th of 448 for the warmest August highs and 85th of 448 for the driest August (rainfall, lowest first). The mean August high of those 448 cities is 26.2°C; Fortaleza is 3.9°C warmer than that mean.
From August to September, average highs rise by 0.1°C to 30.2°C, and monthly rainfall falls from 8.0 mm to 3.6 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
Fortaleza climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.3°C24.9°C | 24.9°C | 94 | 18.2 | 12.312 h |
| February | 28.9°C24.7°C | 24.7°C | 134 | 20.4 | 12.212 h |
| March | 28.7°C24.6°C | 24.6°C | 194 | 25.4 | 12.112 h |
| April | 28.5°C24.5°C | 24.5°C | 248 | 25.4 | 12.012 h |
| May | 28.9°C24.7°C | 24.7°C | 129 | 19.6 | 11.912 h |
| June | 28.8°C24.3°C | 24.3°C | 72 | 13.7 | 11.912 h |
| July | 29.2°C24.0°C | 24.0°C | 36 | 7.7 | 11.912 h |
| August, selected | 30.1°C24.1°C | 24.1°C | 8.0 | 2.3 | 12.012 h |
| September | 30.2°C24.4°C | 24.4°C | 3.6 | 1.2 | 12.112 h |
| October | 30.2°C24.9°C | 24.9°C | 4.8 | 1.6 | 12.212 h |
| November | 30.3°C25.2°C | 25.2°C | 6.9 | 2.3 | 12.312 h |
| December | 30.0°C25.3°C | 25.3°C | 27 | 8.5 | 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
- Caucaia in AugustBrazil · 12 kmHigh 30.4°C · Low 24.1°C · 4.2 mm rain
- Maracanaú in AugustBrazil · 20 kmHigh 31.5°C · Low 23.6°C · 5.3 mm rain
- Eusébio in AugustBrazil · 22 kmHigh 31.0°C · Low 23.7°C · 7.2 mm rain
- Maranguape in AugustBrazil · 25 kmHigh 31.8°C · Low 23.5°C · 5.3 mm rain
- Pacatuba in AugustBrazil · 31 kmHigh 32.0°C · Low 23.2°C · 7.2 mm rain
- Horizonte in AugustBrazil · 43 kmHigh 31.9°C · Low 22.8°C · 7.2 mm rain
- Pacajus in AugustBrazil · 51 kmHigh 32.4°C · Low 22.8°C · 5.6 mm rain
- Cascavel, Brazil in AugustBrazil · 57 kmHigh 30.1°C · Low 23.9°C · 4.8 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 Fortaleza) is explained once on the Fortaleza year overview and on the Sources, method and limits page.