Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
September's entry sees an average high-temperature of a still warm 28.6°C (83.5°F), replicating August's climate. Assok-Seng's temperature tends to fall to an average low of 20.3°C (68.5°F) during the nights of September.Heat index
The heat index in September is computed to be a fiery hot 36°C (96.8°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
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. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The average relative humidity in September is 90%.Rainfall
In September, the rain falls for 28.3 days. Throughout September, 164mm (6.46") of precipitation is accumulated. Throughout the year, there are 317.5 rainfall days, and 1608mm (63.31") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 8min.On the first day of the month, sunrise is at 06:09 and sunset at 18:18. On the last day of September, in Assok-Seng, Gabon, sunrise is at 06:00 and sunset at 18:06 WAT.
Sunshine
In September, the average sunshine in Assok-Seng is 4.7h.UV index
June through November, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the lowest UV index?
How high is the UV index in September?
Average temperature in September
Assok-Seng, Gabon
- Average high temperature in September: 28.6°C
The warmest month (with the highest average high temperature) is February (32.3°C).
The month with the lowest average high temperature is October (28.5°C).
- Average low temperature in September: 20.3°C
The months with the highest average low temperature are February and April (21.1°C).
The coldest month (with the lowest average low temperature) is July (19.7°C).
Average pressure in September
Assok-Seng, Gabon
- Average pressure in September: 1013.1mbar
The month with the highest atmospheric pressure is July (1013.9mbar).
The month with the lowest atmospheric pressure is February (1010.2mbar).
Average wind speed in September
Assok-Seng, Gabon
- Average wind speed in September: 4.4km/h
The windiest month (with the highest average wind speed) is August (4.7km/h).
The calmest months (with the lowest average wind speed) are May and November (3.5km/h).
Average humidity in September
Assok-Seng, Gabon
- Average humidity in September: 90%
The month with the highest relative humidity is October (91%).
The month with the lowest relative humidity is January (78%).
Average rainfall in September
Assok-Seng, Gabon
- Average rainfall in September: 164mm
The wettest month (with the highest rainfall) is October (227mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days in September
Assok-Seng, Gabon
- Average rainfall days in September: 28.3 days
The month with the highest number of rainy days is October (29.4 days).
The month with the least rainy days is December (20.5 days).
Average daylight in September /
Average sunshine in September
Assok-Seng, Gabon
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 12min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in September: 4h and 4min
The month with the most sunshine is January (Average sunshine: 8h and 18min).
The month with the least sunshine is October (Average sunshine: 4h and 30min).
Average sunshine days in September
Assok-Seng, Gabon
- Average sunshine days in September: 0.3 days
The month with the most sunshine days is January (8.4 days).
The month with the least sunshine days is September (0.3 days).
Average UV index in September
Assok-Seng, Gabon
- Average UV index in September: 5
The months with the highest UV index are January, February, March, April, May and December (UV index 6).
The months with the lowest UV index are June, July, August, September, October and November (UV index 5).
Average cloud cover in September
Assok-Seng, Gabon
- Average cloud cover in September: 81
The months with the most cloud cover are September and October (Cloud cover 81).
The month with the least cloud cover is January (Cloud cover 54).
Average visibility in September
Assok-Seng, Gabon
- Average visibility in September: 5km
The month with the highest visibility is January (7km).
The months with the lowest visibility are March, April, May, June, July, August, September, October and November (5km).
