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 weather displays an average high-temperature of a still agreeable 20.9°C (69.6°F), slightly varied from August's 21.6°C (70.9°F). In September, Colline Kiraga records an average nighttime temperature of 13.6°C (56.5°F).Humidity
The average relative humidity in September is 76%.Rainfall
In Colline Kiraga, in September, during 25.5 rainfall days, 133mm (5.24") of precipitation is typically accumulated. In Colline Kiraga, during the entire year, the rain falls for 289.8 days and collects up to 1383mm (54.45") of precipitation.Daylight
The average length of the day in September is 12h and 6min.On the first day of September, sunrise is at 06:00 and sunset at 18:05. On the last day of the month, sunrise is at 05:48 and sunset at 17:56 CAT.
Sunshine
The month with the most sunshine is September, with an average of 10h of sunshine.UV index
January through May, July through October and December, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 5 in September transforms into the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
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?
What month has the most sunshine in Colline Kiraga?
How long on average sun shines in September?
What are the months with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Colline Kiraga, Rwanda
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is February (21.8°C).
The month with the lowest average high temperature is May (19.6°C).
- Average low temperature in September: 13.6°C
The month with the highest average low temperature is October (13.9°C).
The coldest months (with the lowest average low temperature) are January and June (12.8°C).
Average pressure in September
Colline Kiraga, Rwanda
- Average pressure in September: 1014.1mbar
The month with the highest atmospheric pressure is June (1015.6mbar).
The month with the lowest atmospheric pressure is February (1012.4mbar).
Average wind speed in September
Colline Kiraga, Rwanda
- Average wind speed in September: 5km/h
The windiest month (with the highest average wind speed) is May (6km/h).
The calmest month (with the lowest average wind speed) is December (3.8km/h).
Average humidity in September
Colline Kiraga, Rwanda
- Average humidity in September: 76%
The months with the highest relative humidity are April and May (88%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Colline Kiraga, Rwanda
- Average rainfall in September: 133mm
The wettest month (with the highest rainfall) is October (174mm).
The driest month (with the least rainfall) is July (41mm).
Average rainfall days in September
Colline Kiraga, Rwanda
- Average rainfall days in September: 25.5 days
The month with the highest number of rainy days is October (27.7 days).
The month with the least rainy days is July (18.5 days).
Average daylight in September /
Average sunshine in September
Colline Kiraga, Rwanda
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is September (Average sunshine: 10h and 0min).
The month with the least sunshine is April (Average sunshine: 7h and 48min).
Average sunshine days in September
Colline Kiraga, Rwanda
- Average sunshine days in September: 3.2 days
The month with the most sunshine days is July (10.5 days).
The month with the least sunshine days is November (2.1 days).
Average UV index in September
Colline Kiraga, Rwanda
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, May, July, August, September, October and December (UV index 5).
The months with the lowest UV index are June and November (UV index 4).
Average cloud cover in September
Colline Kiraga, Rwanda
- Average cloud cover in September: 36
The month with the most cloud cover is May (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Colline Kiraga, Rwanda
- Average visibility in September: 9km
The months with the highest visibility are July and August (10km).
The month with the lowest visibility is May (7km).
