September weather forecastNossi, Angola
September
Weather in September
The first month of the spring, September, is a hot month in Nossi, Angola, with an average temperature ranging between max 30.5°C (86.9°F) and min 14.5°C (58.1°F).Temperature
In Nossi, September records the highest average temperatures, peaking at 30.5°C (86.9°F) and reaching a low of 14.5°C (58.1°F).Humidity
In Nossi, the average relative humidity in September is 39%.Rainfall
Months with rainfall are January through May, September through December. September is the first month it rains. Throughout September, in the average 5.7 rainfall days, it receives 11mm (0.43") of precipitation. In Nossi, during the entire year, the rain falls for 194 days and collects up to 1462mm (57.56") of precipitation.Daylight
In September, the average length of the day is 12h and 2min.On the first day of September, sunrise is at 06:02 and sunset at 17:55. On the last day of the month, sunrise is at 05:42 and sunset at 17:55 WAT.
Sunshine
September and November, with an average of 9.6h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index 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 unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 6 suggests these recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nossi, Angola
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is September (30.5°C).
The month with the lowest average high temperature is December (22.9°C).
- Average low temperature in September: 14.5°C
The month with the highest average low temperature is October (15.9°C).
The coldest month (with the lowest average low temperature) is June (8.9°C).
Average pressure in September
Nossi, Angola
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is June (1017.5mbar).
The month with the lowest atmospheric pressure is October (1012.5mbar).
Average wind speed in September
Nossi, Angola
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is August (6.9km/h).
The calmest month (with the lowest average wind speed) is December (4.8km/h).
Average humidity in September
Nossi, Angola
- Average humidity in September: 39%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (30%).
Average rainfall in September
Nossi, Angola
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is December (281mm).
The driest months (with the least rainfall) are June, July and August (0mm).
Average rainfall days in September
Nossi, Angola
- Average rainfall days in September: 5.7 days
The month with the highest number of rainy days is December (30 days).
The months with the least rainy days are June and July (0.1 days).
Average daylight in September /
Average sunshine in September
Nossi, Angola
- Average daylight in September: 12h and 0min
The month with the longest days is December (Average daylight: 12h and 48min).
The month with the shortest days is June (Average daylight: 11h and 24min).
- Average sunshine in September: 9h and 36min
The months with the most sunshine are September and November (Average sunshine: 9h and 36min).
The month with the least sunshine is April (Average sunshine: 6h and 42min).
Average sunshine days in September
Nossi, Angola
- Average sunshine days in September: 21.1 days
The month with the most sunshine days is July (31 days).
The month with the least sunshine days is December (0.8 days).
Average UV index in September
Nossi, 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
Nossi, Angola
- Average cloud cover in September: 7
The month with the most cloud cover is December (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 1).
Average visibility in September
Nossi, 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, February, March and December (7km).
