September weather forecastHarare, Zimbabwe

September
Weather in September
September continues the trend set by August, with a mere 1mm (0.04") of rainfall but with a marked increase in temperature, reaching up to 28.8°C (83.8°F). This temperature rise is an indicator of the transition into the hotter months. September marks the dawn of the hot season in Harare, marked by warm temperatures, barely existent rainfall, and abundant daylight and sun. The month exhibits a significant boost in wind speed, third-highest in the year, accompanying the rising temperatures.Temperature
September's onset is marked by a subtle temperature increase, moving from a moderately hot 25.5°C (77.9°F) in August to a still warm 28.8°C (83.8°F). Harare registers a significant reduction from the day's heat, with an average temperature drop to a fresh 12.9°C (55.2°F) in September.Humidity
September is the least humid month, with an average relative humidity of 39%.Rainfall
August and September are months with the least rain when the rain falls for 1.2 days and typically aggregates up to 1mm (0.04") of rain.Daylight
The average length of the day in September is 12h and 0min.On the first day of the month, sunrise is at 06:02 and sunset at 17:48. On the last day of September, sunrise is at 05:38 and sunset at 17:53 CAT.
Sunshine
In September, the average sunshine is 9.6h.UV index
January, August through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Harare, Zimbabwe
- Average high temperature in September: 28.8°C
The warmest month (with the highest average high temperature) is October (30.5°C).
The month with the lowest average high temperature is July (21.8°C).
- Average low temperature in September: 12.9°C
The month with the highest average low temperature is December (17.4°C).
The coldest month (with the lowest average low temperature) is July (8.3°C).
Average pressure in September
Harare, Zimbabwe
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is July (1022.2mbar).
The month with the lowest atmospheric pressure is January (1011.8mbar).
Average wind speed in September
Harare, Zimbabwe
- Average wind speed in September: 11.5km/h
The windiest month (with the highest average wind speed) is October (11.6km/h).
The calmest month (with the lowest average wind speed) is May (7.7km/h).
Average humidity in September
Harare, Zimbabwe
- Average humidity in September: 39%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is September (39%).
Average rainfall in September
Harare, Zimbabwe
- Average rainfall in September: 1mm
The wettest month (with the highest rainfall) is January (151mm).
The driest months (with the least rainfall) are August and September (1mm).
Average rainfall days in September
Harare, Zimbabwe
- Average rainfall days in September: 1.2 days
The month with the highest number of rainy days is January (24.4 days).
The month with the least rainy days is September (1.2 days).
Average daylight in September /
Average sunshine in September
Harare, Zimbabwe
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 6min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is November (Average sunshine: 11h and 18min).
The month with the least sunshine is April (Average sunshine: 7h and 12min).
Average sunshine days in September
Harare, Zimbabwe
- Average sunshine days in September: 28.5 days
The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is January (5.5 days).
Average UV index in September
Harare, Zimbabwe
- Average UV index in September: 6
The months with the highest UV index are January, August, September, October, November and December (UV index 6).
The month with the lowest UV index is June (UV index 4).
Average cloud cover in September
Harare, Zimbabwe
- Average cloud cover in September: 6
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 6).
Average visibility in September
Harare, Zimbabwe
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February and March (8km).





