September weather forecastCalonga, Angola
September
Weather in September
The first month of the spring, September, is also a moderately hot month in Calonga, Angola, with an average temperature varying between 29.6°C (85.3°F) and 13.7°C (56.7°F).Temperature
September is the warmest month, with an average high-temperature of 29.6°C (85.3°F) and an average low-temperature of 13.7°C (56.7°F).Heat index
The heat index value during September is estimated at a hot 30°C (86°F). When exposure and activity are sustained, they could induce fatigue, with a chance of heat cramps.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
The average relative humidity in September is 48%.Rainfall
In Calonga, during September, the rain falls for 5.2 days and regularly aggregates up to 22mm (0.87") of precipitation. In Calonga, during the entire year, the rain falls for 170.5 days and collects up to 1898mm (74.72") of precipitation.Daylight
The average length of the day in September is 12h and 1min.On the first day of the month, sunrise is at 06:04 and sunset at 17:53. On the last day of September, sunrise is at 05:41 and sunset at 17:55 WAT.
Sunshine
In September, the average sunshine is 10.9h.UV index
The months with the highest UV index in Calonga are August and 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 radiation for average individuals.Note: In September, the UV index of 6 transforms into the following advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Calonga, Angola
- Average high temperature in September: 29.6°C
The warmest month (with the highest average high temperature) is September (29.6°C).
The months with the lowest average high temperature are January and March (23.3°C).
- Average low temperature in September: 13.7°C
The month with the highest average low temperature is November (16.5°C).
The coldest months (with the lowest average low temperature) are June and July (10.4°C).
Average pressure in September
Calonga, Angola
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is July (1016mbar).
The months with the lowest atmospheric pressure are February and November (1011.2mbar).
Average wind speed in September
Calonga, Angola
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is July (7.9km/h).
The calmest month (with the lowest average wind speed) is February (4.9km/h).
Average humidity in September
Calonga, Angola
- Average humidity in September: 48%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is August (38%).
Average rainfall in September
Calonga, Angola
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is March (366mm).
The driest months (with the least rainfall) are June and July (0mm).
Average rainfall days in September
Calonga, Angola
- Average rainfall days in September: 5.2 days
The month with the highest number of rainy days is March (26.7 days).
The months with the least rainy days are June and July (0.1 days).
Average daylight in September /
Average sunshine in September
Calonga, Angola
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 13h and 0min).
The month with the shortest days is June (Average daylight: 11h and 12min).
- Average sunshine in September: 10h and 54min
The month with the most sunshine is October (Average sunshine: 11h and 36min).
The month with the least sunshine is March (Average sunshine: 7h and 0min).
Average sunshine days in September
Calonga, Angola
- Average sunshine days in September: 23.7 days
The month with the most sunshine days is July (30.9 days).
The month with the least sunshine days is March (3.7 days).
Average UV index in September
Calonga, Angola
- Average UV index in September: 6
The months with the highest UV index are August and September (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, October, November and December (UV index 5).
Average cloud cover in September
Calonga, Angola
- Average cloud cover in September: 9
The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are June and July (Cloud cover 2).
Average visibility in September
Calonga, Angola
- Average visibility in September: 10km
The months with the highest visibility are May, June, July, August and September (10km).
The months with the lowest visibility are January and March (7km).





