September weather forecastNangha, Gabon
September
Weather in September
The first month of the spring, September, is also a hot month in Nangha, Gabon, with an average temperature ranging between min 21.5°C (70.7°F) and max 30.5°C (86.9°F).Temperature
Nangha marks the onset of September with an average high-temperature of a still tropical 30.5°C (86.9°F), a subtle shift from August's 31.4°C (88.5°F). In Nangha, September's nights observe an average temperature dip to an agreeable 21.5°C (70.7°F).Heat index
In September, the average heat index is appraised at a torrid 39°C (102.2°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Heat index's context suggests values are appropriate for shady areas and slight breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In Nangha, the average relative humidity in September is 78%.Rainfall
In Nangha, in September, during 22.6 rainfall days, 84mm (3.31") of precipitation is typically accumulated. In Nangha, during the entire year, the rain falls for 297.6 days and collects up to 1831mm (72.09") of precipitation.Daylight
In September, the average length of the day is 12h and 6min.On the first day of September in Nangha, sunrise is at 06:12 and sunset at 18:17. On the last day of the month, sunrise is at 06:01 and sunset at 18:08 WAT.
Sunshine
With an average of 5.3h of sunshine, September has the least sunshine of the year.UV index
In Nangha, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nangha, Gabon
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is March (32.1°C).
The month with the lowest average high temperature is October (29.9°C).
- Average low temperature in September: 21.5°C
The month with the highest average low temperature is March (22.2°C).
The coldest month (with the lowest average low temperature) is July (19.7°C).
Average pressure in September
Nangha, Gabon
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is July (1014.2mbar).
The months with the lowest atmospheric pressure are February and March (1010.3mbar).
Average wind speed in September
Nangha, Gabon
- Average wind speed in September: 5.5km/h
The windiest month (with the highest average wind speed) is August (6km/h).
The calmest month (with the lowest average wind speed) is December (3.8km/h).
Average humidity in September
Nangha, Gabon
- Average humidity in September: 78%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Nangha, Gabon
- Average rainfall in September: 84mm
The wettest month (with the highest rainfall) is October (275mm).
The driest month (with the least rainfall) is July (13mm).
Average rainfall days in September
Nangha, Gabon
- Average rainfall days in September: 22.6 days
The month with the highest number of rainy days is December (30.4 days).
The month with the least rainy days is July (10.3 days).
Average daylight in September /
Average sunshine in September
Nangha, 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 0min).
- Average sunshine in September: 5h and 18min
The month with the most sunshine is January (Average sunshine: 7h and 24min).
The month with the least sunshine is September (Average sunshine: 5h and 18min).
Average sunshine days in September
Nangha, Gabon
- Average sunshine days in September: 3.7 days
The month with the most sunshine days is July (15 days).
The month with the least sunshine days is October (0.4 days).
Average UV index in September
Nangha, Gabon
- Average UV index in September: 6
The month with the highest UV index is March (UV index 7).
The month with the lowest UV index is October (UV index 5).
Average cloud cover in September
Nangha, Gabon
- Average cloud cover in September: 70
The month with the most cloud cover is October (Cloud cover 77).
The month with the least cloud cover is July (Cloud cover 54).
Average visibility in September
Nangha, Gabon
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The month with the lowest visibility is November (5km).





