Climate averages 1991–2020
Balombo weather
in September.
A hot, moderately wet month: the warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Balombo: daytime highs average 31.9°C and nights cool to about 16.1°C. By daytime temperature it is the warmest month of the year.
Expect about 45 mm of rain on roughly 9 days, which makes September a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 01 min on an average September day.
The nearest other city in this atlas is Bocoio (70 km away). In September its highs average 29.2°C, 2.7°C cooler than Balombo, with 27 mm of rain.
Among the 47 cities listed in Angola, Balombo ranks joint 6th of 47 for the warmest September highs and 38th of 47 for the driest September (rainfall, lowest first). The mean September high of those 47 cities is 29.0°C; Balombo is 2.9°C warmer than that mean.
From September to October, average highs fall by 2.9°C to 28.9°C, and monthly rainfall rises from 45 mm to 205 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
Balombo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.0°C17.1°C | 17.1°C | 171 | 19.7 | 12.813 h |
| February | 26.8°C17.2°C | 17.2°C | 168 | 17.5 | 12.513 h |
| March | 26.9°C17.2°C | 17.2°C | 239 | 23.8 | 12.212 h |
| April | 27.7°C16.6°C | 16.6°C | 115 | 16.4 | 11.812 h |
| May | 29.4°C15.1°C | 15.1°C | 5.8 | 1.2 | 11.612 h |
| June | 29.6°C13.0°C | 13.0°C | 0.1 | 0.0 | 11.411 h |
| July | 30.0°C12.7°C | 12.7°C | 0 | 0.0 | 11.511 h |
| August | 31.8°C14.4°C | 14.4°C | 2.6 | 0.7 | 11.712 h |
| September, selected | 31.9°C16.1°C | 16.1°C | 45 | 8.7 | 12.012 h |
| October | 28.9°C17.3°C | 17.3°C | 205 | 25.9 | 12.412 h |
| November | 26.8°C17.3°C | 17.3°C | 268 | 26.7 | 12.713 h |
| December | 25.7°C17.3°C | 17.3°C | 224 | 23.2 | 12.813 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
- Bocoio in SeptemberAngola · 70 kmHigh 29.2°C · Low 15.8°C · 27 mm rain
- Longonjo in SeptemberAngola · 80 kmHigh 30.7°C · Low 14.4°C · 24 mm rain
- Ecunna in SeptemberAngola · 87 kmHigh 28.5°C · Low 14.0°C · 30 mm rain
- Cubal in SeptemberAngola · 95 kmHigh 32.3°C · Low 16.3°C · 6.9 mm rain
- Caála in SeptemberAngola · 102 kmHigh 28.7°C · Low 13.6°C · 30 mm rain
- Cela in SeptemberAngola · 111 kmHigh 30.3°C · Low 16.2°C · 36 mm rain
- Huambo in SeptemberAngola · 115 kmHigh 28.8°C · Low 13.8°C · 23 mm rain
- Lobito in SeptemberAngola · 134 kmHigh 25.8°C · Low 19.8°C · 0.6 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 Balombo) is explained once on the Balombo year overview and on the Sources, method and limits page.