September weather forecastMwandoni, Kenya

September

Weather in September

September, the first month of the spring in Mwandoni, is still a warm month, with temperature in the range of an average low of 22.5°C (72.5°F) and an average high of 28°C (82.4°F).

Temperature

September's onset brings an average high-temperature of a still warm 28°C (82.4°F), showing a minute difference from August's 27.6°C (81.7°F). The mean low-temperature during September nights is an agreeable 22.5°C (72.5°F).

Heat index

The heat index value during September is estimated at a hot 32°C (89.6°F). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

January, May, September through December, with an average relative humidity of 77%, are the most humid months in Mwandoni.

Rainfall

In Mwandoni, in September, during 11.2 rainfall days, 12mm (0.47") of precipitation is typically accumulated. Throughout the year, there are 167.2 rainfall days, and 312mm (12.28") of precipitation is accumulated.

Daylight

The average length of the day in September in Mwandoni is 12h and 5min.
On the first day of September, sunrise is at 06:20 and sunset at 18:22. On the last day of the month, sunrise is at 06:07 and sunset at 18:15 EAT.

Sunshine

The average sunshine in September in Mwandoni is 8.4h.

UV index

The months with the highest UV index in Mwandoni are January through June, September through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in September, in Mwandoni, is 28°C (82.4°F), while the average low-temperature is 22.5°C (72.5°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 32°C (89.6°F).

January, May, September through December, with an average relative humidity of 77%, are most humid months.

In Mwandoni, the average relative humidity in September is 77%.

In Mwandoni, Kenya, in September, during 11.2 rainfall days, 12mm (0.47") of precipitation is typically accumulated.

In September, the average day length is 12h and 5min.

In September, on the first day of the month, sunrise is at 06:20 and sunset at 18:22. On the last day of the month, sunrise is at 06:07 and sunset at 18:15 EAT.

In Mwandoni, Kenya, the average sunshine duration in September is 8.4h.

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index.

In Mwandoni, Kenya, the average daily maximum UV index in September is 7. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

27.6°C

28°C

29.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

21.1km/h

19.1km/h

16.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

8.8

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Mwandoni, 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
Mwandoni, 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
Mwandoni, 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
Mwandoni, 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
Mwandoni, 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
Mwandoni, 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
Mwandoni, 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
Mwandoni, 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
Mwandoni, 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
Mwandoni, 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
Mwandoni, 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).