September weather forecastSassalemba, Angola
September
Weather in September
September, the first month of the spring in Sassalemba, is still a warm month, with an average temperature varying between 21.7°C (71.1°F) and 26.2°C (79.2°F).Temperature
The arrival of September sees a recorded average high-temperature of a still moderately hot 26.2°C (79.2°F), showing little divergence from the previous month's conditions. Sassalemba observes an average low-temperature of 21.7°C (71.1°F) during the slightly cooler nights of September.Humidity
In September, the average relative humidity is 78%.Rainfall
In Sassalemba, during September, the rain falls for 12.3 days and regularly aggregates up to 12mm (0.47") of precipitation. Throughout the year, there are 158.7 rainfall days, and 456mm (17.95") of precipitation is accumulated.Daylight
In Sassalemba, Angola, the average length of the day in September is 12h and 4min.On the first day of September, sunrise is at 06:07 and sunset at 18:04. On the last day of the month, sunrise is at 05:50 and sunset at 18:01 WAT.
Sunshine
The average sunshine in September is 9h.UV index
June through September, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sassalemba, Angola
- Average high temperature in September: 26.2°C
The warmest month (with the highest average high temperature) is March (30.8°C).
The month with the lowest average high temperature is August (25.3°C).
- Average low temperature in September: 21.7°C
The month with the highest average low temperature is March (26°C).
The coldest month (with the lowest average low temperature) is July (20.2°C).
Average pressure in September
Sassalemba, Angola
- Average pressure in September: 1013.5mbar
The month with the highest atmospheric pressure is July (1014.6mbar).
The month with the lowest atmospheric pressure is February (1010.1mbar).
Average wind speed in September
Sassalemba, Angola
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is October (12.7km/h).
The calmest months (with the lowest average wind speed) are April and May (10.4km/h).
Average humidity in September
Sassalemba, Angola
- Average humidity in September: 78%
The months with the highest relative humidity are April and May (80%).
The month with the lowest relative humidity is February (75%).
Average rainfall in September
Sassalemba, Angola
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is April (89mm).
The driest months (with the least rainfall) are June and July (2mm).
Average rainfall days in September
Sassalemba, Angola
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is April (22 days).
The month with the least rainy days is June (2.4 days).
Average daylight in September /
Average sunshine in September
Sassalemba, Angola
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 36min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are January and December (Average sunshine: 9h and 18min).
The month with the least sunshine is June (Average sunshine: 7h and 6min).
Average sunshine days in September
Sassalemba, Angola
- Average sunshine days in September: 9.3 days
The month with the most sunshine days is June (22.2 days).
The month with the least sunshine days is October (3.5 days).
Average UV index in September
Sassalemba, Angola
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are June, July, August and September (UV index 6).
Average cloud cover in September
Sassalemba, Angola
- Average cloud cover in September: 44
The month with the most cloud cover is October (Cloud cover 52).
The month with the least cloud cover is May (Cloud cover 24).
Average visibility in September
Sassalemba, Angola
- 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).
