September weather forecastKayonza, Rwanda
September
Weather in September
Kayonza moves into the transition phase in September with an increase in rainfall after the prolonged dry spell. Average temperatures hover around a comfortable 26°C (78.8°F) during the day while nights are pleasantly cool at 16.6°C (61.9°F). As the quarter progresses, the earlier dry spell makes way for more humid days, adding a bit of dampness to the otherwise balmy weather. Feather-light winds ensure that the increasing humidity does not become stifling. Diminished sunshine prompts a tinge of yearning and a watchful wait for the radiant days of October.Temperature
September is marked by an average high-temperature of a still warm 26°C (78.8°F), almost identical to the preceding month. An average temperature of 16.6°C (61.9°F) is recorded during the nights in September.Humidity
In Kayonza, the average relative humidity in September is 64%.Rainfall
In September, the rain falls for 24.7 days. Throughout September, 97mm (3.82") of precipitation is accumulated. Throughout the year, there are 279 rainfall days, and 1291mm (50.83") of precipitation is accumulated.Daylight
In September, the average length of the day in Kayonza is 12h and 6min.On the first day of the month, sunrise is at 05:55 and sunset at 18:00. On the last day of September, sunrise is at 05:43 and sunset at 17:51 CAT.
Sunshine
The average sunshine in September in Kayonza is 9.8h.UV index
January, July through September, with an average maximum UV index of 6, are months with the highest UV index in Kayonza. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kayonza, Rwanda
- Average high temperature in September: 26°C
The warmest month (with the highest average high temperature) is August (26.8°C).
The month with the lowest average high temperature is May (22.8°C).
- Average low temperature in September: 16.6°C
The month with the highest average low temperature is September (16.6°C).
The coldest month (with the lowest average low temperature) is June (13.8°C).
Average pressure in September
Kayonza, Rwanda
- Average pressure in September: 1013.9mbar
The month with the highest atmospheric pressure is June (1015.8mbar).
The month with the lowest atmospheric pressure is February (1012.6mbar).
Average wind speed in September
Kayonza, Rwanda
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is July (7.3km/h).
The calmest month (with the lowest average wind speed) is November (4.6km/h).
Average humidity in September
Kayonza, Rwanda
- Average humidity in September: 64%
The month with the highest relative humidity is May (86%).
The month with the lowest relative humidity is August (54%).
Average rainfall in September
Kayonza, Rwanda
- Average rainfall in September: 97mm
The wettest month (with the highest rainfall) is October (186mm).
The driest month (with the least rainfall) is July (13mm).
Average rainfall days in September
Kayonza, Rwanda
- Average rainfall days in September: 24.7 days
The months with the highest number of rainy days are April and November (29.2 days).
The month with the least rainy days is July (7.8 days).
Average daylight in September /
Average sunshine in September
Kayonza, Rwanda
- Average daylight in September: 12h and 6min
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: 9h and 48min
The month with the most sunshine is December (Average sunshine: 10h and 18min).
The month with the least sunshine is May (Average sunshine: 7h and 42min).
Average sunshine days in September
Kayonza, Rwanda
- Average sunshine days in September: 3.5 days
The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is November (0.5 days).
Average UV index in September
Kayonza, Rwanda
- Average UV index in September: 6
The months with the highest UV index are January, July, August and September (UV index 6).
The months with the lowest UV index are February, March, April, May, June, October, November and December (UV index 5).
Average cloud cover in September
Kayonza, Rwanda
- Average cloud cover in September: 28
The month with the most cloud cover is May (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Kayonza, Rwanda
- Average visibility in September: 10km
The months with the highest visibility are February, June, July, August and September (10km).
The months with the lowest visibility are April and May (8km).
