Climate averages 1991–2020
Fortaleza weather
in January.
A hot, wet month: the 6th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Fortaleza: daytime highs average 29.3°C and nights cool to about 24.9°C. By daytime temperature it is the 6th warmest of the 12 months.
Expect about 94 mm of rain on roughly 18 days, which makes January a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 18 min on an average January day.
The nearest other city in this atlas is Caucaia (12 km away). In January its highs average 29.3°C, about as warm as Fortaleza, with 80 mm of rain.
Among the 448 cities listed in Brazil, Fortaleza ranks joint 141st of 448 for the warmest January highs and joint 64th of 448 for the driest January (rainfall, lowest first). The mean January high of those 448 cities is 28.5°C; Fortaleza is 0.8°C warmer than that mean.
From January to February, average highs fall by 0.3°C to 28.9°C, and monthly rainfall rises from 94 mm to 134 mm.
The annual picture
January 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, selected | 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 | 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
January in nearby cities
- Caucaia in JanuaryBrazil · 12 kmHigh 29.3°C · Low 24.9°C · 80 mm rain
- Maracanaú in JanuaryBrazil · 20 kmHigh 30.3°C · Low 24.5°C · 99 mm rain
- Eusébio in JanuaryBrazil · 22 kmHigh 29.9°C · Low 24.6°C · 98 mm rain
- Maranguape in JanuaryBrazil · 25 kmHigh 30.4°C · Low 24.3°C · 99 mm rain
- Pacatuba in JanuaryBrazil · 31 kmHigh 30.6°C · Low 24.1°C · 98 mm rain
- Horizonte in JanuaryBrazil · 43 kmHigh 30.4°C · Low 23.7°C · 98 mm rain
- Pacajus in JanuaryBrazil · 51 kmHigh 30.9°C · Low 23.8°C · 89 mm rain
- Cascavel, Brazil in JanuaryBrazil · 57 kmHigh 29.3°C · Low 24.8°C · 99 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.