September weather forecastZoula, Gabon

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Zoula, Gabon, with an average temperature ranging between min 20°C (68°F) and max 28.5°C (83.3°F).

Temperature

Zoula sees its lowest temperatures during September and October, with an average high-temperature of 28.5°C (83.3°F).

Heat index

Throughout September, the heat index is appraised at a torrid 35°C (95°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Consider that heat index readings are for situations in the shade and light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In September, the average relative humidity is 87%.

Rainfall

In Zoula, during September, the rain falls for 28.5 days and regularly aggregates up to 159mm (6.26") of precipitation. Throughout the year, there are 304 rainfall days, and 1415mm (55.71") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 7min.
On the first day of the month, sunrise is at 05:59 and sunset at 18:07. On the last day of September, in Zoula, sunrise is at 05:50 and sunset at 17:56 WAT.

Sunshine

In Zoula, Gabon, 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 estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 5 during September translates into the following guidance:
Prioritize safety - Recommendations to avert sunburn are shared. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.

Frequently asked questions

September and October mark Zoula's lowest temperatures, averaging a high-temperature of 28.5°C (83.3°F).

An average high-temperature, in September, in Zoula, is 28.5°C (83.3°F) and the average low-temperature is 20°C (68°F). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 35°C (95°F).

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

In Zoula, in September, it is raining for 28.5 days, with typically 159mm (6.26") of accumulated precipitation.

The average day length in September is 12h and 7min.

On the first day of September, sunrise is at 05:59 and sunset at 18:07. On the last day of the month, sunrise is at 05:50 and sunset at 17:56 WAT.

In Zoula, the average sunshine duration in September is 6.1h.

The month with the lowest UV index is September, with an average maximum UV index of 5.

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Zoula, 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
Zoula, 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
Zoula, 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
Zoula, 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
Zoula, 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
Zoula, 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
Zoula, Gabon

  • Average daylight in September: 12h and 6min

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 6min

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
Zoula, 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
Zoula, 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
Zoula, 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
Zoula, Gabon

  • Average visibility in September: 6km

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