September weather forecastBongonoko, Kenya
September
Weather in September
The first month of the spring, September, is also a hot month in Bongonoko, Kenya, with an average temperature fluctuating between 22.7°C (72.9°F) and 33.1°C (91.6°F).Temperature
Transitioning from August to September, Bongonoko observes an average high-temperature of a still tropical 33.1°C (91.6°F), differing subtly from the previous month. Bongonoko's temperature lowers to a mean of 22.7°C (72.9°F) during the nights in September.Heat index
The heat index in September is appraised at a sweltering 38°C (100.4°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.Records show heat index calculations are tailored for shaded regions and mild winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
In Bongonoko, the average relative humidity in September is 56%.Rainfall
In Bongonoko, during September, the rain falls for 4.6 days and regularly aggregates up to 2mm (0.08") of precipitation. In Bongonoko, during the entire year, the rain falls for 103.3 days and collects up to 326mm (12.83") of precipitation.Daylight
The average length of the day in September is 12h and 7min.On the first day of September in Bongonoko, sunrise is at 06:17 and sunset at 18:23. On the last day of the month, sunrise is at 06:07 and sunset at 18:14 EAT.
Sunshine
In Bongonoko, the average sunshine in September is 8.5h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, a daily UV index of 7 turns into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bongonoko, Kenya
- Average high temperature in September: 33.1°C
The warmest month (with the highest average high temperature) is March (35.2°C).
The month with the lowest average high temperature is July (32.3°C).
- Average low temperature in September: 22.7°C
The month with the highest average low temperature is March (25.5°C).
The coldest months (with the lowest average low temperature) are July and August (22.3°C).
Average pressure in September
Bongonoko, Kenya
- Average pressure in September: 1013.6mbar
The month with the highest atmospheric pressure is July (1014.4mbar).
The month with the lowest atmospheric pressure is March (1009.7mbar).
Average wind speed in September
Bongonoko, Kenya
- Average wind speed in September: 26.7km/h
The windiest month (with the highest average wind speed) is July (29.6km/h).
The calmest month (with the lowest average wind speed) is December (10.8km/h).
Average humidity in September
Bongonoko, Kenya
- Average humidity in September: 56%
The months with the highest relative humidity are November and December (65%).
The month with the lowest relative humidity is February (52%).
Average rainfall in September
Bongonoko, Kenya
- Average rainfall in September: 2mm
The wettest month (with the highest rainfall) is November (102mm).
The driest months (with the least rainfall) are June and July (1mm).
Average rainfall days in September
Bongonoko, Kenya
- Average rainfall days in September: 4.6 days
The month with the highest number of rainy days is November (20.6 days).
The month with the least rainy days is June (1.3 days).
Average daylight in September /
Average sunshine in September
Bongonoko, Kenya
- 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 6min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is January (Average sunshine: 9h and 0min).
The month with the least sunshine is November (Average sunshine: 7h and 42min).
Average sunshine days in September
Bongonoko, Kenya
- Average sunshine days in September: 19.9 days
The month with the most sunshine days is June (26.8 days).
The month with the least sunshine days is November (7.9 days).
Average UV index in September
Bongonoko, Kenya
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Bongonoko, Kenya
- Average cloud cover in September: 36
The month with the most cloud cover is November (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 23).
Average visibility in September
Bongonoko, Kenya
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





