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
Mariakani marks the onset of September with an average high-temperature of a still moderately hot 28°C (82.4°F), subtly divergent from August's 27.6°C (81.7°F). In September, Mariakani's temperature tends to fall to an average low of 22.5°C (72.5°F) during the night.Heat index
The heat index in September is computed to be a tropical 32°C (89.6°F). If exposure and activity persist, fatigue could ensue, possibly leading to heat cramps.Understand that the heat index values take into account shaded locations and mild winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
The months with the highest humidity are January, May, September through December, with an average relative humidity of 77%.Rainfall
In September, in Mariakani, the rain falls for 11.2 days. Throughout September, 12mm (0.47") of precipitation is accumulated. Throughout the year, there are 167.2 rainfall days, and 312mm (12.28") of precipitation is accumulated.Daylight
In Mariakani, the average length of the day in September is 12h and 5min.On the first day of September in Mariakani, sunrise is at 06:20 and sunset at 18:23. On the last day of the month, sunrise is at 06:07 and sunset at 18:16 EAT.
Sunshine
The average sunshine in September is 8.4h.UV index
The months with the highest UV index are January through June, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 7 translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. 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
How hot is September in Mariakani?
What is the most humid month in Mariakani?
What is the average humidity in September in Mariakani?
How many days does it rain in September in Mariakani?
What is the average length of the day in September in Mariakani?
What time are sunrise and sunset in September in Mariakani?
How many hours of sunshine does Mariakani have in September?
When is the highest UV index in Mariakani?
What is the UV index intensity in September in Mariakani?
Average temperature in September
Mariakani, Kenya
- Average high temperature in September: 28°C
The warmest month (with the highest average high temperature) is March (31.6°C).
The month with the lowest average high temperature is July (27.3°C).
- Average low temperature in September: 22.5°C
The months with the highest average low temperature are March and April (25.3°C).
The coldest month (with the lowest average low temperature) is August (22°C).
Average pressure in September
Mariakani, Kenya
- Average pressure in September: 1015.3mbar
The month with the highest atmospheric pressure is July (1016.1mbar).
The month with the lowest atmospheric pressure is February (1010.5mbar).
Average wind speed in September
Mariakani, Kenya
- Average wind speed in September: 18.6km/h
The windiest month (with the highest average wind speed) is July (23.2km/h).
The calmest month (with the lowest average wind speed) is March (11.9km/h).
Average humidity in September
Mariakani, Kenya
- Average humidity in September: 77%
The months with the highest relative humidity are January, May, September, October, November and December (77%).
The month with the lowest relative humidity is July (74%).
Average rainfall in September
Mariakani, Kenya
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is May (48mm).
The driest month (with the least rainfall) is June (10mm).
Average rainfall days in September
Mariakani, Kenya
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is December (21.2 days).
The month with the least rainy days is February (8.8 days).
Average daylight in September /
Average sunshine in September
Mariakani, Kenya
- Average daylight in September: 12h and 1min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is November (Average sunshine: 10h and 30min).
The month with the least sunshine is May (Average sunshine: 7h and 54min).
Average sunshine days in September
Mariakani, Kenya
- Average sunshine days in September: 8.8 days
The month with the most sunshine days is February (15.3 days).
The month with the least sunshine days is December (7 days).
Average UV index in September
Mariakani, Kenya
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, September, October, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover in September
Mariakani, Kenya
- Average cloud cover in September: 42
The month with the most cloud cover is October (Cloud cover 45).
The month with the least cloud cover is December (Cloud cover 30).
Average visibility in September
Mariakani, 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).
