September weather forecastNgola, Gabon
September
Weather in September
The first month of the spring, September, is still a warm month in Ngola, Gabon, with an average temperature fluctuating between 24.1°C (75.4°F) and 25.7°C (78.3°F).Temperature
September welcomes an average high-temperature of a still moderately hot 25.7°C (78.3°F), not much different from the preceding month. In Ngola, September is characterized by an average low-temperature of 24.1°C (75.4°F), indicating a minor drop from daytime highs.Humidity
June through October, with an average relative humidity of 84%, are the most humid months.Rainfall
In Ngola, in September, it is raining for 15.3 days, with typically 30mm (1.18") of accumulated precipitation. Throughout the year, there are 251.9 rainfall days, and 1462mm (57.56") of precipitation is accumulated.Daylight
In Ngola, the average length of the day in September is 12h and 7min.On the first day of September, sunrise is at 06:20 and sunset at 18:26. On the last day of the month, sunrise is at 06:10 and sunset at 18:17 WAT.
Sunshine
In September, the average sunshine is 6.2h.UV index
June through October, 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 vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 6 in September suggests the following recommendations:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ngola, Gabon
- Average high temperature in September: 25.7°C
The warmest month (with the highest average high temperature) is March (29°C).
The month with the lowest average high temperature is July (24.4°C).
- Average low temperature in September: 24.1°C
The month with the highest average low temperature is February (26.9°C).
The coldest month (with the lowest average low temperature) is July (22.1°C).
Average pressure in September
Ngola, Gabon
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is July (1014.4mbar).
The months with the lowest atmospheric pressure are February and March (1009.9mbar).
Average wind speed in September
Ngola, Gabon
- Average wind speed in September: 18.2km/h
The windiest month (with the highest average wind speed) is September (18.2km/h).
The calmest month (with the lowest average wind speed) is January (12km/h).
Average humidity in September
Ngola, Gabon
- Average humidity in September: 84%
The months with the highest relative humidity are June, July, August, September and October (84%).
The months with the lowest relative humidity are January, February and March (79%).
Average rainfall in September
Ngola, Gabon
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is November (277mm).
The driest month (with the least rainfall) is July (6mm).
Average rainfall days in September
Ngola, Gabon
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is December (28.7 days).
The month with the least rainy days is July (7.7 days).
Average daylight in September /
Average sunshine in September
Ngola, Gabon
- Average daylight in September: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 6min).
- Average sunshine in September: 6h and 12min
The months with the most sunshine are January and February (Average sunshine: 8h and 42min).
The month with the least sunshine is August (Average sunshine: 6h and 6min).
Average sunshine days in September
Ngola, Gabon
- Average sunshine days in September: 3.9 days
The month with the most sunshine days is July (14.8 days).
The month with the least sunshine days is December (1.2 days).
Average UV index in September
Ngola, Gabon
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, November and December (UV index 7).
The months with the lowest UV index are June, July, August, September and October (UV index 6).
Average cloud cover in September
Ngola, Gabon
- Average cloud cover in September: 63
The months with the most cloud cover are August and September (Cloud cover 63).
The months with the least cloud cover are January and February (Cloud cover 38).
Average visibility in September
Ngola, Gabon
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September and December (10km).
The months with the lowest visibility are October and November (9km).
