Climate averages 1991–2020
Sobral weather
in September.
A very hot, very dry month: the 3rd warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a very hot month in Sobral: daytime highs average 35.5°C and nights cool to about 23.9°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 1.0 mm of rain on fewer than one day, which makes September a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 05 min on an average September day.
The nearest other city in this atlas is Tianguá (71 km away). In September its highs average 30.9°C, 4.6°C cooler than Sobral, with 1.2 mm of rain.
Among the 448 cities listed in Brazil, Sobral ranks 4th of 448 for the warmest September highs and joint 4th of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Sobral is 8.0°C warmer than that mean.
From September to October, average highs rise by 0.3°C to 35.8°C, and monthly rainfall rises from 1.0 mm to 2.8 mm.
The annual picture
September 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
Sobral climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.4°C23.9°C | 23.9°C | 95 | 15.5 | 12.312 h |
| February | 31.3°C23.6°C | 23.6°C | 124 | 18.8 | 12.212 h |
| March | 30.6°C23.5°C | 23.5°C | 177 | 23.7 | 12.112 h |
| April | 30.2°C23.3°C | 23.3°C | 187 | 22.2 | 12.012 h |
| May | 31.0°C23.2°C | 23.2°C | 82 | 13.1 | 12.012 h |
| June | 31.9°C22.8°C | 22.8°C | 22 | 5.2 | 11.912 h |
| July | 32.9°C22.9°C | 22.9°C | 14 | 2.5 | 11.912 h |
| August | 34.4°C23.3°C | 23.3°C | 3.9 | 0.5 | 12.012 h |
| September, selected | 35.5°C23.9°C | 23.9°C | 1.0 | 0.2 | 12.112 h |
| October | 35.8°C24.2°C | 24.2°C | 2.8 | 0.5 | 12.212 h |
| November | 35.6°C24.4°C | 24.4°C | 4.6 | 0.7 | 12.312 h |
| December | 34.5°C24.5°C | 24.5°C | 22 | 4.7 | 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
September in nearby cities
- Tianguá in SeptemberBrazil · 71 kmHigh 30.9°C · Low 19.6°C · 1.2 mm rain
- Itapipoca in SeptemberBrazil · 88 kmHigh 34.1°C · Low 24.0°C · 2.7 mm rain
- Canindé in SeptemberBrazil · 137 kmHigh 34.1°C · Low 22.7°C · 0.8 mm rain
- Crateús in SeptemberBrazil · 170 kmHigh 34.3°C · Low 22.5°C · 1.3 mm rain
- Parnaíba in SeptemberBrazil · 181 kmHigh 33.8°C · Low 25.0°C · 1.1 mm rain
- Maranguape in SeptemberBrazil · 186 kmHigh 32.2°C · Low 23.9°C · 2.6 mm rain
- Caucaia in SeptemberBrazil · 188 kmHigh 30.5°C · Low 24.4°C · 1.5 mm rain
- Maracanaú in SeptemberBrazil · 192 kmHigh 31.9°C · Low 24.0°C · 2.6 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 Sobral) is explained once on the Sobral year overview and on the Sources, method and limits page.