September weather forecastMtama, Tanzania
September
Weather in September
The first month of the spring, September, is still a warm month in Mtama, Tanzania, with an average temperature fluctuating between 28°C (82.4°F) and 21.9°C (71.4°F).Temperature
As Mtama steps into September, the average high-temperature holds at a still warm 28°C (82.4°F), hinting at a minor fluctuation from the prior month. Throughout September, Mtama's nights cool down to an average of 21.9°C (71.4°F).Heat index
In September, the heat index is estimated at a tropical 32°C (89.6°F). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.Note that heat index values are valued for light wind and location in the shade. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
The average relative humidity in September is 76%.Rainfall
In Mtama, in September, it is raining for 7.8 days, with typically 11mm (0.43") of accumulated precipitation. In Mtama, during the entire year, the rain falls for 191.4 days and collects up to 898mm (35.35") of precipitation.Daylight
In September, the average length of the day is 12h and 3min.On the first day of September, sunrise is at 06:24 and sunset at 18:20. On the last day of the month, sunrise is at 06:06 and sunset at 18:18 EAT.
Sunshine
In Mtama, the average sunshine in September is 9.2h.UV index
The months with the lowest UV index are January, February, May through September, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during September translates into these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mtama, Tanzania
- Average high temperature in September: 28°C
The warmest month (with the highest average high temperature) is December (30.1°C).
The month with the lowest average high temperature is July (27.3°C).
- Average low temperature in September: 21.9°C
The month with the highest average low temperature is January (25.8°C).
The coldest month (with the lowest average low temperature) is July (21.1°C).
Average pressure in September
Mtama, Tanzania
- Average pressure in September: 1016.4mbar
The month with the highest atmospheric pressure is July (1017.7mbar).
The months with the lowest atmospheric pressure are January and February (1010.3mbar).
Average wind speed in September
Mtama, Tanzania
- Average wind speed in September: 13.7km/h
The windiest month (with the highest average wind speed) is July (18.5km/h).
The calmest month (with the lowest average wind speed) is March (10.3km/h).
Average humidity in September
Mtama, Tanzania
- Average humidity in September: 76%
The month with the highest relative humidity is April (82%).
The month with the lowest relative humidity is July (74%).
Average rainfall in September
Mtama, Tanzania
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is March (181mm).
The driest month (with the least rainfall) is August (6mm).
Average rainfall days in September
Mtama, Tanzania
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is March (28.1 days).
The month with the least rainy days is August (5.8 days).
Average daylight in September /
Average sunshine in September
Mtama, Tanzania
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 30min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is November (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 7h and 36min).
Average sunshine days in September
Mtama, Tanzania
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is August (20.5 days).
The month with the least sunshine days is March (1.3 days).
Average UV index in September
Mtama, Tanzania
- Average UV index in September: 6
The months with the highest UV index are March, April, October, November and December (UV index 7).
The months with the lowest UV index are January, February, May, June, July, August and September (UV index 6).
Average cloud cover in September
Mtama, Tanzania
- Average cloud cover in September: 26
The month with the most cloud cover is January (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 20).
Average visibility in September
Mtama, Tanzania
- 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).





