September weather forecast
Mekambo, Gabon

September

Weather in September

September in Mekambo marks the turn of tides. The weather this month witnesses the most considerable rainfall of the year with 159mm (6.26"). Contrary to the recent decrease in rainfall, September surprises residents with sudden showers and relatively cooler days. The temperatures continue their steady trend from 20°C (68°F) to around 28.5°C (83.3°F), and echo the previous month’s average figures. Despite the sudden resurgence of rainfall, hopeful citizens anticipate upcoming drier, sunnier days.

Temperature

Mekambo's coldest period falls in September and October, when the average high-temperatures ascend to 28.5°C (83.3°F).

Heat index

In September, the heat index is calculated to be a fiery hot 35°C (95°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', determines the feeling of heat when you account for the relative humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In Mekambo, the average relative humidity in September is 87%.

Rainfall

In Mekambo, in September, during 28.5 rainfall days, 159mm (6.26") of precipitation is typically accumulated. In Mekambo, during the entire year, the rain falls for 304 days and collects up to 1415mm (55.71") of precipitation.

Daylight

The average length of the day in September is 12h and 7min.
On the first day of the month, sunrise is at 06:00 and sunset at 18:08. On the last day of September, in Mekambo, sunrise is at 05:50 and sunset at 17:57 WAT.

Sunshine

In Mekambo, the average sunshine in September is 6.1h.

UV index

September is the month with the lowest UV index, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 5 during September leads to these instructions:
Act with care - The need to guard against sun damage is communicated. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.

Frequently asked questions

What are the coldest months?
Mekambo witnesses its lowest temperatures in September and October, reaching an average of 28.5°C (83.3°F).
How hot does it get in September?
September temperatures vary between a high-temperature of 28.5°C (83.3°F) and a low-temperature of 20°C (68°F). The average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, in September is calculated to be 35°C (95°F).
What is the average humidity in September?
In September, the average relative humidity is 87%.
How much does it rain in Mekambo in September?
In Mekambo, during September, the rain falls for 28.5 days and regularly aggregates up to 159mm (6.26") of precipitation.
What is the average length of the day 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 06:00 and sunset at 18:08. On the last day of the month, sunrise is at 05:50 and sunset at 17:57 WAT.
How many hours of sunshine does Mekambo have in September?
The average sunshine duration in September is 6.1h.
When is the lowest UV index?
With an average maximum UV index of 5, September is the month with the lowest UV index.
How high is the UV index in September?
In Mekambo, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September - Mekambo, Gabon
Average temperature in September
Mekambo, Gabon
  • Average high temperature in September: 28.5°C

The warmest month (with the highest average high temperature) is January (32.2°C).
The months with the lowest average high temperature are September and October (28.5°C).

  • Average low temperature in September: 20°C

The month with the highest average low temperature is February (21.3°C).
The coldest month (with the lowest average low temperature) is July (19.9°C).

Average pressure in September - Mekambo, Gabon
Average pressure in September
Mekambo, Gabon
  • Average pressure in September: 1012.5mbar

The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is February (1009.7mbar).

Average wind speed in September - Mekambo, Gabon
Average wind speed in September
Mekambo, Gabon
  • Average wind speed in September: 4.6km/h

The windiest month (with the highest average wind speed) is August (5km/h).
The calmest month (with the lowest average wind speed) is November (3.8km/h).

Average humidity in September - Mekambo, Gabon
Average humidity in September
Mekambo, Gabon
  • Average humidity in September: 87%

The month with the highest relative humidity is October (89%).
The month with the lowest relative humidity is January (71%).

Average rainfall in September - Mekambo, Gabon
Average rainfall in September
Mekambo, Gabon
  • Average rainfall in September: 159mm

The wettest month (with the highest rainfall) is October (219mm).
The driest month (with the least rainfall) is January (33mm).

Average rainfall days in September - Mekambo, Gabon
Average rainfall days in September
Mekambo, Gabon
  • Average rainfall days in September: 28.5 days

The month with the highest number of rainy days is October (29.2 days).
The month with the least rainy days is January (17.3 days).

Average daylight in September / Average sunshine in September - Mekambo, Gabon
Average daylight in September /
Average sunshine in September
Mekambo, 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 6min).

  • Average sunshine in September: 6h and 1min

The month with the most sunshine is January (Average sunshine: 8h and 54min).
The month with the least sunshine is October (Average sunshine: 5h and 0min).

Average sunshine days in September - Mekambo, Gabon
Average sunshine days in September
Mekambo, Gabon
  • Average sunshine days in September: 1 days

The month with the most sunshine days is January (11.9 days).
The month with the least sunshine days is October (0.8 days).

Average UV index in September - Mekambo, Gabon
Average UV index in September
Mekambo, Gabon
  • Average UV index in September: 5

The month with the highest UV index is March (UV index 7).
The month with the lowest UV index is September (UV index 5).

Average cloud cover in September - Mekambo, Gabon
Average cloud cover in September
Mekambo, Gabon
  • Average cloud cover in September: 68

The month with the most cloud cover is October (Cloud cover 73).
The month with the least cloud cover is January (Cloud cover 36).

Average visibility in September - Mekambo, Gabon
Average visibility in September
Mekambo, Gabon
  • Average visibility in September: 6km

The month with the highest visibility is January (9km).
The month with the lowest visibility is October (5km).

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