September weather forecastIssuna, Tanzania
September
Weather in September
September, the first month of the spring in Issuna, is a tropical month, with an average temperature varying between 30.5°C (86.9°F) and 16.4°C (61.5°F).Temperature
September ushers in an average high-temperature of a hot 30.5°C (86.9°F), aligning closely with the preceding month. During September, the nighttime temperature presents a clear descent from the daily peaks, falling to an average of 16.4°C (61.5°F).Heat index
The heat index value during September is evaluated at a tropical 32°C (89.6°F). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humidity
The average relative humidity in September is 52%.Rainfall
June through September are months without rainfall in Issuna.Daylight
In September, the average length of the day is 12h and 5min.On the first day of the month, sunrise is at 06:40 and sunset at 18:41. On the last day of September, sunrise is at 06:26 and sunset at 18:35 EAT.
Sunshine
August and September, with an average of 9.9h of sunshine, are months with the most sunshine in Issuna.UV index
The months with the lowest UV index in Issuna are January through September, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Issuna, Tanzania
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is October (31.8°C).
The months with the lowest average high temperature are May and June (27.2°C).
- Average low temperature in September: 16.4°C
The month with the highest average low temperature is November (19.3°C).
The coldest month (with the lowest average low temperature) is July (13.9°C).
Average pressure in September
Issuna, Tanzania
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is July (1017.9mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).
Average wind speed in September
Issuna, Tanzania
- Average wind speed in September: 11.6km/h
The windiest month (with the highest average wind speed) is October (12.1km/h).
The calmest month (with the lowest average wind speed) is January (5.3km/h).
Average humidity in September
Issuna, Tanzania
- Average humidity in September: 52%
The months with the highest relative humidity are March and April (80%).
The month with the lowest relative humidity is October (51%).
Average rainfall in September
Issuna, Tanzania
- Average rainfall in September: 0mm
The wettest month (with the highest rainfall) is December (135mm).
The driest months (with the least rainfall) are June, July, August and September (0mm).
Average rainfall days in September
Issuna, Tanzania
- Average rainfall days in September: 0.5 days
The month with the highest number of rainy days is March (21.3 days).
The month with the least rainy days is August (0.2 days).
Average daylight in September /
Average sunshine in September
Issuna, Tanzania
- 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 48min).
- Average sunshine in September: 9h and 54min
The months with the most sunshine are August and September (Average sunshine: 9h and 54min).
The month with the least sunshine is April (Average sunshine: 8h and 6min).
Average sunshine days in September
Issuna, Tanzania
- Average sunshine days in September: 29.7 days
The months with the most sunshine days are July and August (30.5 days).
The month with the least sunshine days is March (8.3 days).
Average UV index in September
Issuna, Tanzania
- Average UV index in September: 6
The month with the highest UV index is October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 6).
Average cloud cover in September
Issuna, Tanzania
- Average cloud cover in September: 14
The month with the most cloud cover is April (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 14).
Average visibility in September
Issuna, Tanzania
- Average visibility in September: 10km
The months with the highest visibility are June, July, August, September, October, November and December (10km).
The months with the lowest visibility are February, March and April (8km).





