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 sea temperature 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
Weather in September
Temperature
Port-Gentil, Gabon, ushers in September with an average high-temperature of a still warm 25.7°C (78.3°F), showing a close resemblance to the previous month. Port-Gentil's nighttime temperature in September consistently rests at a still warm 24.1°C (75.4°F).Humidity
June through October, with an average relative humidity of 84%, are the most humid months in Port-Gentil.Rainfall
In Port-Gentil, during September, the rain falls for 15.3 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, there are 251.9 rainfall days, and 1462mm (57.56") of precipitation is accumulated.Sea temperature
In Port-Gentil, in September, the average water temperature is 25.3°C (77.5°F).Note: Water activities including swimming and diving are pleasurable in temperatures between 25°C (77°F) and 29°C (84.2°F), ensuring comfort and enjoyment for extended time frames.
Daylight
In September, the average length of the day in Port-Gentil is 12h and 7min.On the first day of September, sunrise is at 06:21 and sunset at 18:27. On the last day of the month, sunrise is at 06:11 and sunset at 18:18 WAT.
Sunshine
In Port-Gentil, the average sunshine in September is 6.2h.UV index
June through October, with an average maximum UV index of 6, are months with the lowest UV index in Port-Gentil. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: In September, a regular UV index of 6 translates into these guidelines:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Notice! The reflection of water and sand increases the UV radiation significantly.
Frequently asked questions
What are September temperatures in Port-Gentil?
What are the most humid months in Port-Gentil?
What is the average humidity in September in Port-Gentil?
How much does it rain in Port-Gentil in September?
What is the water temperature in September in Port-Gentil?
How many hours of daylight does Port-Gentil have in September?
When are sunrise and sunset in September in Port-Gentil?
How long on average sun shines in September in Port-Gentil?
What is the month with the lowest UV index in Port-Gentil?
What is the UV index intensity in September in Port-Gentil?
Average temperature in September
Port-Gentil, 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
Port-Gentil, 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
Port-Gentil, 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
Port-Gentil, 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
Port-Gentil, 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
Port-Gentil, 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 sea temperature in September
Port-Gentil, Gabon
- Average sea temperature in September: 25.3°C
The best month for swimming (with the highest average sea temperature) is March (29.2°C).
The coldest month (with the lowest average sea temperature) is July (23.1°C).
Average daylight in September /
Average sunshine in September
Port-Gentil, Gabon
- Average daylight in September: 12h and 1min
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 1min
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
Port-Gentil, 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
Port-Gentil, 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
Port-Gentil, 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
Port-Gentil, 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).
Port-Gentil, Gabon
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