September weather forecastIwemba, Uganda
September
Weather in September
September, the first month of the autumn in Iwemba, is still a warm month, with an average temperature fluctuating between 27.2°C (81°F) and 16.1°C (61°F).Temperature
The weather during September records an average high-temperature of a still warm 27.2°C (81°F), closely mirroring the preceding month. Throughout the nights in September, an average low-temperature of 16.1°C (61°F) is noted.Heat index
September's heat index is evaluated at a hot 30°C (86°F). Constant activity during exposure could result in a state of weariness and possibly heat cramps.In the scope of the heat index, its values resonate with shade and light wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
In September, the average relative humidity is 77%.Rainfall
In Iwemba, in September, during 27.5 rainfall days, 120mm (4.72") of precipitation is typically accumulated. Throughout the year, there are 300.8 rainfall days, and 1573mm (61.93") of precipitation is accumulated.Snowfall
The only month with snowfall is September. The month with the most snowfall is September, when snow falls for 0.1 days and typically aggregates up to 1mm (0.04") of snow.Daylight
In September, the average length of the day is 12h and 7min.On the first day of September, sunrise is at 06:40 and sunset at 18:48. On the last day of the month, sunrise is at 06:31 and sunset at 18:37 EAT.
Sunshine
In Iwemba, the average sunshine in September is 9.4h.UV index
The months with the highest UV index are January through March, September, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, an average UV index of 6 transforms into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Iwemba, Uganda
- Average high temperature in September: 27.2°C
The warmest month (with the highest average high temperature) is February (31.3°C).
The month with the lowest average high temperature is June (25.2°C).
- Average low temperature in September: 16.1°C
The month with the highest average low temperature is February (17.6°C).
The coldest month (with the lowest average low temperature) is July (15.5°C).
Average pressure in September
Iwemba, Uganda
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is July (1014.6mbar).
The month with the lowest atmospheric pressure is February (1010.8mbar).
Average wind speed in September
Iwemba, Uganda
- Average wind speed in September: 4.6km/h
The windiest month (with the highest average wind speed) is February (6.7km/h).
The calmest months (with the lowest average wind speed) are August and September (4.6km/h).
Average humidity in September
Iwemba, Uganda
- Average humidity in September: 77%
The month with the highest relative humidity is May (85%).
The month with the lowest relative humidity is February (55%).
Average rainfall in September
Iwemba, Uganda
- Average rainfall in September: 120mm
The wettest month (with the highest rainfall) is May (257mm).
The driest month (with the least rainfall) is February (36mm).
Average rainfall days in September
Iwemba, Uganda
- Average rainfall days in September: 27.5 days
The month with the highest number of rainy days is May (30.6 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in September
Iwemba, Uganda
- Average snowfall in September: 1mm
The month with the highest snowfall is September (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0mm).
Average snowfall days in September
Iwemba, Uganda
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Iwemba, Uganda
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 6min).
- Average sunshine in September: 9h and 24min
The months with the most sunshine are January and February (Average sunshine: 9h and 48min).
The month with the least sunshine is May (Average sunshine: 8h and 30min).
Average sunshine days in September
Iwemba, Uganda
- Average sunshine days in September: 0.6 days
The month with the most sunshine days is January (13.7 days).
The month with the least sunshine days is June (0.2 days).
Average UV index in September
Iwemba, Uganda
- Average UV index in September: 6
The months with the highest UV index are January, February, March, September, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August and October (UV index 5).
Average cloud cover in September
Iwemba, Uganda
- Average cloud cover in September: 29
The month with the most cloud cover is May (Cloud cover 44).
The month with the least cloud cover is February (Cloud cover 14).
Average visibility in September
Iwemba, Uganda
- Average visibility in September: 9km
The months with the highest visibility are January, February and March (10km).
The months with the lowest visibility are April, May and June (8km).





