Climate averages 1991–2020
Natal weather
in September.
A hot, fairly dry month: the 9th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Natal: daytime highs average 28.1°C and nights cool to about 23.3°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 31 mm of rain on roughly 12 days, which makes September a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 04 min on an average September day.
The nearest other city in this atlas is Parnamirim (15 km away). In September its highs average 28.5°C, about as warm as Natal, with 18 mm of rain.
Among the 448 cities listed in Brazil, Natal ranks joint 178th of 448 for the warmest September highs and joint 101st of 448 for the driest September (rainfall, lowest first). The mean September high of those 448 cities is 27.5°C; Natal is 0.6°C warmer than that mean.
From September to October, average highs rise by 0.8°C to 28.9°C, and monthly rainfall falls from 31 mm to 24 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
Natal climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.4°C24.7°C | 24.7°C | 75 | 19.1 | 12.412 h |
| February | 29.4°C24.7°C | 24.7°C | 102 | 19.4 | 12.312 h |
| March | 29.2°C24.7°C | 24.7°C | 150 | 23.3 | 12.112 h |
| April | 28.7°C24.5°C | 24.5°C | 183 | 24.4 | 12.012 h |
| May | 28.4°C24.2°C | 24.2°C | 148 | 22.3 | 11.912 h |
| June | 27.3°C23.4°C | 23.4°C | 155 | 21.9 | 11.812 h |
| July | 26.8°C22.8°C | 22.8°C | 130 | 21.0 | 11.812 h |
| August | 27.3°C22.7°C | 22.7°C | 51 | 15.1 | 11.912 h |
| September, selected | 28.1°C23.3°C | 23.3°C | 31 | 11.5 | 12.112 h |
| October | 28.9°C24.0°C | 24.0°C | 24 | 10.3 | 12.212 h |
| November | 29.3°C24.5°C | 24.5°C | 25 | 10.5 | 12.412 h |
| December | 29.5°C24.7°C | 24.7°C | 40 | 14.8 | 12.512 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
- Parnamirim in SeptemberBrazil · 15 kmHigh 28.5°C · Low 22.9°C · 18 mm rain
- Macaíba in SeptemberBrazil · 17 kmHigh 29.5°C · Low 22.9°C · 31 mm rain
- Ceará-Mirim in SeptemberBrazil · 30 kmHigh 29.0°C · Low 23.0°C · 12 mm rain
- Santa Rita in SeptemberBrazil · 149 kmHigh 28.2°C · Low 22.8°C · 34 mm rain
- João Pessoa in SeptemberBrazil · 152 kmHigh 27.4°C · Low 22.8°C · 37 mm rain
- Campina Grande in SeptemberBrazil · 176 kmHigh 27.9°C · Low 19.0°C · 13 mm rain
- Goiana in SeptemberBrazil · 198 kmHigh 27.9°C · Low 22.3°C · 36 mm rain
- Carpina in SeptemberBrazil · 229 kmHigh 27.4°C · Low 20.5°C · 31 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 Natal) is explained once on the Natal year overview and on the Sources, method and limits page.
Macaíba lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.