September weather forecast
Nkok, Gabon

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Weather in September

September signals a shift in climate, as the rainy season gradually returns to Nkok. The rainfall sees a resurgence with a total of 76mm (2.99") marking a considerable increase compared to the preceding months. With the rain returning, coupled with the constant tropical temperature, the vibrancy of Nkok’s natural beauty illuminates. The latter half of September brings back the familiar tropical feel with the monsoon knocking on the door. The allure of the transitioning weather, with its alternating clear skies and rainfall, brings about a unique charm to the city.

Temperature

September notes an average high-temperature of a still moderately hot 27.8°C (82°F), subtly differing from August's 26.8°C (80.2°F). A consistent average low-temperature of 23.5°C (74.3°F), with a minor variance from the daytime highs, is noted during the nights of September.

Heat index

The heat index in September is estimated at a hot 32°C (89.6°F). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Nkok, the average relative humidity in September is 83%.

Rainfall

In September, the rain falls for 17.7 days. Throughout September, 76mm (2.99") of precipitation is accumulated. In Nkok, during the entire year, the rain falls for 274.1 days and collects up to 1477mm (58.15") of precipitation.

Daylight

In September, the average length of the day is 12h and 7min.
On the first day of September, sunrise is at 06:17 and sunset at 18:25. On the last day of the month, sunrise is at 06:08 and sunset at 18:14 WAT.

Sunshine

With an average of 5.1h of sunshine, September has the least sunshine of the year.

UV index

The months with the lowest UV index are June through October, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 6 during September translates into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

What is the average September temperature?

An average high-temperature, in September, in Nkok, is 27.8°C (82°F) and the average low-temperature is 23.5°C (74.3°F). The average heat index (a.k.a. 'real feel', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 32°C (89.6°F).

What is the average humidity in September in Nkok?

In Nkok, Gabon, the average relative humidity in September is 83%.

How much does it rain in September?

In Nkok, during September, the rain falls for 17.7 days and regularly aggregates up to 76mm (2.99") of precipitation.

How many hours of daylight does Nkok have in September?

In September, the average day length is 12h and 7min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 06:17 and sunset at 18:25. On the last day of the month, sunrise is at 06:08 and sunset at 18:14 WAT.

What is the month with the least sunshine?

September has the least sunshine of the year, with an average of 5.1h of sunshine.

How long on average sun shines in September?

The average sunshine duration in September is 5.1h.

What is the month with the lowest UV index?

June through October, with an average maximum UV index of 6, are months with the lowest UV index.

How high is the UV index in September?

The average daily maximum UV index in September in Nkok is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.

Average temperature in September
Nkok, Gabon

Average temperature in September - Nkok, Gabon
  • Average high temperature in September: 27.8°C

The warmest month (with the highest average high temperature) is March (30.1°C).
The month with the lowest average high temperature is July (26.5°C).

  • Average low temperature in September: 23.5°C

The month with the highest average low temperature is March (25.3°C).
The coldest month (with the lowest average low temperature) is July (22.5°C).

Average pressure in September
Nkok, Gabon

Average pressure in September - Nkok, Gabon
  • Average pressure in September: 1012.9mbar

The month with the highest atmospheric pressure is July (1014mbar).
The months with the lowest atmospheric pressure are February and March (1010mbar).

Average wind speed in September
Nkok, Gabon

Average wind speed in September - Nkok, Gabon
  • Average wind speed in September: 12.5km/h

The windiest month (with the highest average wind speed) is August (13.4km/h).
The calmest month (with the lowest average wind speed) is April (8.2km/h).

Average humidity in September
Nkok, Gabon

Average humidity in September - Nkok, Gabon
  • Average humidity in September: 83%

The month with the highest relative humidity is November (86%).
The months with the lowest relative humidity are January, February, March and August (81%).

Average rainfall in September
Nkok, Gabon

Average rainfall in September - Nkok, Gabon
  • Average rainfall in September: 76mm

The wettest month (with the highest rainfall) is November (226mm).
The driest month (with the least rainfall) is July (9mm).

Average rainfall days in September
Nkok, Gabon

Average rainfall days in September - Nkok, Gabon
  • Average rainfall days in September: 17.7 days

The month with the highest number of rainy days is January (30 days).
The month with the least rainy days is July (8.3 days).

Average daylight in September /
Average sunshine in September
Nkok, Gabon

Average daylight in September / Average sunshine in September - Nkok, Gabon
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 6min).
The month with the shortest days is December (Average daylight: 12h and 6min).

  • Average sunshine in September: 5h and 1min

The month with the most sunshine is February (Average sunshine: 8h and 18min).
The month with the least sunshine is September (Average sunshine: 5h and 6min).

Average sunshine days in September
Nkok, Gabon

Average sunshine days in September - Nkok, Gabon
  • Average sunshine days in September: 9.9 days

The month with the most sunshine days is July (20.7 days).
The month with the least sunshine days is January (0.6 days).

Average UV index in September
Nkok, Gabon

Average UV index in September - Nkok, 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
Nkok, Gabon

Average cloud cover in September - Nkok, Gabon
  • Average cloud cover in September: 74

The month with the most cloud cover is September (Cloud cover 74).
The month with the least cloud cover is February (Cloud cover 42).

Average visibility in September
Nkok, Gabon

Average visibility in September - Nkok, Gabon
  • Average visibility in September: 10km

The months with the highest visibility are January, February, March, June, July, August and September (10km).
The months with the lowest visibility are April, May, October, November and December (9km).

Nkok, Gabon

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