September weather forecastNyali, Kenya
September
Weather in September
The first month of the spring, September, is still a warm month in Nyali, Kenya, with an average temperature fluctuating between 28°C (82.4°F) and 22.5°C (72.5°F).Temperature
As Nyali welcomes September, the average high-temperature records at a still warm 28°C (82.4°F), marking an insignificant deviation from the prior month. An average nighttime temperature of 22.5°C (72.5°F) is observed in Nyali during September.Heat index
For most parts of September, the heat index is evaluated at a tropical 32°C (89.6°F). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance 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.
Humidity
The months with the highest humidity are January, May, September through December, with an average relative humidity of 77%.Rainfall
In Nyali, in September, during 11.2 rainfall days, 12mm (0.47") of precipitation is typically accumulated. In Nyali, during the entire year, the rain falls for 167.2 days and collects up to 312mm (12.28") of precipitation.Sea temperature
In September, the average sea temperature is 26°C (78.8°F).Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
Daylight
In Nyali, Kenya, the average length of the day in September is 12h and 5min.On the first day of the month, sunrise is at 06:19 and sunset at 18:22. On the last day of September, in Nyali, sunrise is at 06:06 and sunset at 18:15 EAT.
Sunshine
In September, the average sunshine in Nyali is 8.4h.UV index
January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index in Nyali. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 7 during September leads to these instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Stay cautious! Sand and water reflections increase UV radiation potency.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nyali, 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
Nyali, 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
Nyali, 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
Nyali, 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
Nyali, 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
Nyali, 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 sea temperature in September
Nyali, Kenya
- Average sea temperature in September: 26°C
The best months for swimming (with the highest average sea temperature) are March and April (29°C).
The coldest month (with the lowest average sea temperature) is August (25°C).
Average daylight in September /
Average sunshine in September
Nyali, Kenya
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in September: 8h and 24min
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
Nyali, 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
Nyali, 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
Nyali, 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
Nyali, 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).
