Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September's average high-temperature stands at a still moderately hot 23.5°C (74.3°F), showing no deviation from August. The temperature during September experiences a small drop from daytime peaks, recording an average of 18.5°C (65.3°F) at night.Humidity
The average relative humidity in September is 78%.Rainfall
In September, the rain falls for 25.7 days. Throughout September, 112mm (4.41") of precipitation is accumulated. In Nsamu, during the entire year, the rain falls for 260.6 days and collects up to 1441mm (56.73") of precipitation.Daylight
The average length of the day in September is 12h and 7min.On the first day of September, sunrise is at 06:47 and sunset at 18:54. On the last day of the month, sunrise is at 06:37 and sunset at 18:43 EAT.
Sunshine
The average sunshine in September is 9.1h.UV index
April through September and November, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index of 5 during September translates into these guidelines:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the lowest UV index?
What is the UV index intensity in September?
Average temperature in September
Nsamu, Uganda
- Average high temperature in September: 23.5°C
The warmest month (with the highest average high temperature) is February (24.9°C).
The month with the lowest average high temperature is May (22.8°C).
- Average low temperature in September: 18.5°C
The month with the highest average low temperature is February (19.6°C).
The coldest month (with the lowest average low temperature) is July (18°C).
Average pressure in September
Nsamu, Uganda
- Average pressure in September: 1012.4mbar
The month with the highest atmospheric pressure is June (1013.7mbar).
The month with the lowest atmospheric pressure is February (1009.8mbar).
Average wind speed in September
Nsamu, Uganda
- Average wind speed in September: 8.4km/h
The windiest month (with the highest average wind speed) is May (10.5km/h).
The calmest month (with the lowest average wind speed) is December (7.7km/h).
Average humidity in September
Nsamu, Uganda
- Average humidity in September: 78%
The months with the highest relative humidity are May and November (82%).
The months with the lowest relative humidity are January, February and July (74%).
Average rainfall in September
Nsamu, Uganda
- Average rainfall in September: 112mm
The wettest month (with the highest rainfall) is November (210mm).
The driest month (with the least rainfall) is July (39mm).
Average rainfall days in September
Nsamu, Uganda
- Average rainfall days in September: 25.7 days
The month with the highest number of rainy days is November (28.5 days).
The month with the least rainy days is July (15.2 days).
Average daylight in September /
Average sunshine in September
Nsamu, Uganda
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is October (Average daylight: 12h and 6min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is January (Average sunshine: 9h and 24min).
The month with the least sunshine is May (Average sunshine: 8h and 12min).
Average sunshine days in September
Nsamu, Uganda
- Average sunshine days in September: 2.2 days
The month with the most sunshine days is July (12.8 days).
The month with the least sunshine days is November (0.9 days).
Average UV index in September
Nsamu, Uganda
- Average UV index in September: 5
The months with the highest UV index are January, February, March, October and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August, September and November (UV index 5).
Average cloud cover in September
Nsamu, Uganda
- Average cloud cover in September: 26
The month with the most cloud cover is May (Cloud cover 38).
The months with the least cloud cover are January and February (Cloud cover 20).
Average visibility in September
Nsamu, Uganda
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
