September weather forecastAssunção, Angola
September
Weather in September
September, the first month of the spring in Assunção, is also a moderately hot month, with temperature in the range of an average low of 13.7°C (56.7°F) and an average high of 29.6°C (85.3°F).Temperature
September stands out as Assunção's warmest month, with temperatures ranging between an average high of 29.6°C (85.3°F) and a low of 13.7°C (56.7°F).Heat index
During September, the heat index is computed to be a hot 30°C (86°F). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
The average relative humidity in September in Assunção is 48%.Rainfall
In Assunção, in September, it is raining for 5.2 days, with typically 22mm (0.87") of accumulated precipitation. In Assunção, during the entire year, the rain falls for 170.5 days and collects up to 1898mm (74.72") of precipitation.Daylight
In September, the average length of the day is 12h and 1min.On the first day of September in Assunção, Angola, sunrise is at 06:12 and sunset at 18:02. On the last day of the month, sunrise is at 05:50 and sunset at 18:04 WAT.
Sunshine
In September, the average sunshine in Assunção, Angola, is 10.9h.UV index
The months with the highest UV index in Assunção, Angola, are August and September, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily UV index of 6 turns into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Assunção, 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
Assunção, 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
Assunção, 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
Assunção, 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
Assunção, 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
Assunção, 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
Assunção, 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 18min).
- 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
Assunção, 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
Assunção, 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
Assunção, 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
Assunção, 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).
