September weather forecastCyangugu, Rwanda
September
Weather in September
September presents an apparently unusual number of sunshine days - about 10.4 hours per day. The start of autumn in Cyangugu brings in cooler nights with steady decreases in temperatures. Increased cloud coverage speaks of the approaching rainy season. Winds slow down, settling for a comfortable breeze falling between the high and low ranges of the year. The shift in weather encourages outdoor activities during daytime hours.Temperature
In Cyangugu, the months of August and September are known for the peak temperatures, reaching an average high of 24.6°C (76.3°F).Humidity
In September, the average relative humidity is 62%.Rainfall
In Cyangugu, in September, during 22.5 rainfall days, 64mm (2.52") of precipitation is typically accumulated. Throughout the year, there are 294.8 rainfall days, and 1224mm (48.19") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 6min.On the first day of September, sunrise is at 06:02 and sunset at 18:06. On the last day of the month, sunrise is at 05:50 and sunset at 17:58 CAT.
Sunshine
In Cyangugu, the average sunshine in September is 10.4h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 5. January through December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk 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:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. 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
Average temperature in September
Cyangugu, Rwanda
- Average high temperature in September: 24.6°C
The warmest months (with the highest average high temperature) are August and September (24.6°C).
The month with the lowest average high temperature is May (22.8°C).
- Average low temperature in September: 14.9°C
The month with the highest average low temperature is October (15.2°C).
The coldest month (with the lowest average low temperature) is June (12.5°C).
Average pressure in September
Cyangugu, Rwanda
- Average pressure in September: 1014mbar
The month with the highest atmospheric pressure is June (1015.6mbar).
The month with the lowest atmospheric pressure is February (1012.5mbar).
Average wind speed in September
Cyangugu, Rwanda
- Average wind speed in September: 5.2km/h
The windiest months (with the highest average wind speed) are May, June, July and August (5.6km/h).
The calmest month (with the lowest average wind speed) is December (4.1km/h).
Average humidity in September
Cyangugu, Rwanda
- Average humidity in September: 62%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Cyangugu, Rwanda
- Average rainfall in September: 64mm
The wettest month (with the highest rainfall) is December (167mm).
The driest month (with the least rainfall) is July (21mm).
Average rainfall days in September
Cyangugu, Rwanda
- Average rainfall days in September: 22.5 days
The months with the highest number of rainy days are March and December (30.1 days).
The month with the least rainy days is July (13.2 days).
Average daylight in September /
Average sunshine in September
Cyangugu, Rwanda
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in September: 10h and 24min
The month with the most sunshine is December (Average sunshine: 10h and 36min).
The month with the least sunshine is April (Average sunshine: 8h and 36min).
Average sunshine days in September
Cyangugu, Rwanda
- Average sunshine days in September: 4.3 days
The month with the most sunshine days is July (15 days).
The month with the least sunshine days is November (0.1 days).
Average UV index in September
Cyangugu, Rwanda
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 5).
Average cloud cover in September
Cyangugu, Rwanda
- Average cloud cover in September: 26
The month with the most cloud cover is April (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Cyangugu, Rwanda
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).





