Climate averages 1991–2020
Blantyre weather
in September.
A warm, very dry month: the 3rd warmest and the 2nd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Blantyre: daytime highs average 26.8°C and nights cool to about 15.1°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 8.5 mm of rain on roughly 2 days, which makes September a very dry month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 00 min on an average September day.
The nearest other city in this atlas is Zomba (55 km away). In September its highs average 27.2°C, about as warm as Blantyre, with 2.4 mm of rain.
Among the 4 cities listed in Malawi, Blantyre ranks 3rd of 4 for the warmest September highs and 3rd of 4 for the driest September (rainfall, lowest first). The mean September high of those 4 cities is 26.4°C; Blantyre is 0.4°C warmer than that mean.
From September to October, average highs rise by 1.8°C to 28.6°C, and monthly rainfall rises from 8.5 mm to 29 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
Blantyre climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.5°C19.0°C | 19.0°C | 321 | 25.8 | 12.913 h |
| February | 25.5°C18.6°C | 18.6°C | 204 | 20.1 | 12.613 h |
| March | 25.2°C18.0°C | 18.0°C | 166 | 19.1 | 12.212 h |
| April | 24.2°C16.1°C | 16.1°C | 50 | 10.5 | 11.812 h |
| May | 23.1°C13.6°C | 13.6°C | 14 | 4.3 | 11.411 h |
| June | 21.3°C11.7°C | 11.7°C | 11 | 4.1 | 11.211 h |
| July | 20.7°C11.1°C | 11.1°C | 14 | 5.2 | 11.311 h |
| August | 23.4°C12.3°C | 12.3°C | 6.8 | 2.3 | 11.612 h |
| September, selected | 26.8°C15.1°C | 15.1°C | 8.5 | 2.2 | 12.012 h |
| October | 28.6°C17.5°C | 17.5°C | 29 | 4.7 | 12.412 h |
| November | 28.8°C19.0°C | 19.0°C | 90 | 12.3 | 12.813 h |
| December | 26.7°C19.1°C | 19.1°C | 225 | 22.8 | 13.013 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
- Zomba in SeptemberMalawi · 55 kmHigh 27.2°C · Low 15.6°C · 2.4 mm rain
- Tete in SeptemberMozambique · 158 kmHigh 33.7°C · Low 20.9°C · 2.3 mm rain
- Mandimba in SeptemberMozambique · 174 kmHigh 28.8°C · Low 16.6°C · 2.2 mm rain
- Cuamba in SeptemberMozambique · 197 kmHigh 30.3°C · Low 17.9°C · 3.5 mm rain
- Gurúè in SeptemberMozambique · 214 kmHigh 28.4°C · Low 16.6°C · 15 mm rain
- Lilongwe in SeptemberMalawi · 241 kmHigh 27.4°C · Low 14.9°C · 1.3 mm rain
- Mocuba in SeptemberMozambique · 241 kmHigh 32.1°C · Low 19.2°C · 11 mm rain
- Lichinga in SeptemberMozambique · 276 kmHigh 25.7°C · Low 13.9°C · 2.9 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 Blantyre) is explained once on the Blantyre year overview and on the Sources, method and limits page.