Climate averages 1991–2020
Calumbo weather
in September.
A hot, very dry month: the joint 9th warmest and the 4th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Calumbo: daytime highs average 31.0°C and nights cool to about 20.7°C. By daytime temperature it is the joint 9th warmest of the 12 months.
Expect about 5.5 mm of rain on roughly 1 day, which makes September a very dry month (the 4th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 03 min on an average September day.
The nearest other city in this atlas is Zango (15 km away). In September its highs average 30.1°C, 1.0°C cooler than Calumbo, with 6.0 mm of rain.
Among the 47 cities listed in Angola, Calumbo ranks 10th of 47 for the warmest September highs and joint 19th of 47 for the driest September (rainfall, lowest first). The mean September high of those 47 cities is 29.0°C; Calumbo is 2.1°C warmer than that mean.
From September to October, average highs rise by 0.3°C to 31.4°C, and monthly rainfall rises from 5.5 mm to 18 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
Calumbo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 32.8°C23.5°C | 23.5°C | 71 | 10.3 | 12.613 h |
| February | 33.3°C24.0°C | 24.0°C | 72 | 10.8 | 12.412 h |
| March | 32.8°C24.4°C | 24.4°C | 116 | 15.8 | 12.212 h |
| April | 31.7°C24.4°C | 24.4°C | 129 | 16.6 | 11.912 h |
| May | 32.5°C23.0°C | 23.0°C | 12 | 2.0 | 11.712 h |
| June | 31.0°C19.9°C | 19.9°C | 0.2 | 0.0 | 11.612 h |
| July | 29.7°C18.3°C | 18.3°C | 0.2 | 0.0 | 11.612 h |
| August | 29.9°C18.9°C | 18.9°C | 1.5 | 0.2 | 11.812 h |
| September, selected | 31.0°C20.7°C | 20.7°C | 5.5 | 1.4 | 12.012 h |
| October | 31.4°C22.4°C | 22.4°C | 18 | 4.2 | 12.312 h |
| November | 31.8°C23.4°C | 23.4°C | 67 | 12.1 | 12.513 h |
| December | 32.2°C23.5°C | 23.5°C | 69 | 11.5 | 12.613 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
- Zango in SeptemberAngola · 15 kmHigh 30.1°C · Low 20.2°C · 6.0 mm rain
- Vila Flor in SeptemberAngola · 22 kmHigh 29.3°C · Low 20.3°C · 4.4 mm rain
- Viana in SeptemberAngola · 27 kmHigh 29.9°C · Low 20.4°C · 4.4 mm rain
- Mulenvos in SeptemberAngola · 32 kmHigh 29.2°C · Low 20.5°C · 3.0 mm rain
- Luanda in SeptemberAngola · 40 kmHigh 28.2°C · Low 20.4°C · 3.0 mm rain
- Cacuaco in SeptemberAngola · 41 kmHigh 29.6°C · Low 21.0°C · 3.0 mm rain
- Kikolo in SeptemberAngola · 42 kmHigh 28.6°C · Low 19.9°C · 3.0 mm rain
- Ramiros in SeptemberAngola · 42 kmHigh 27.0°C · Low 21.1°C · 1.6 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 Calumbo) is explained once on the Calumbo year overview and on the Sources, method and limits page.