September weather forecastBoutou, Benin

September

Weather in September

September, the first month of the autumn in Boutou, is still a warm month, with an average temperature ranging between max 29.8°C (85.6°F) and min 21.9°C (71.4°F).

Temperature

Boutou marks the arrival of September with an average high-temperature of a still warm 29.8°C (85.6°F), hardly different from August's 28.5°C (83.3°F). In the month of September, the temperature in Boutou generally rests at an average low of 21.9°C (71.4°F).

Heat index

September's mean heat index is estimated at a sweltering 38°C (100.4°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Data suggests that the heat index is set for environments in shade and with a 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 'apparent temperature' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in September in Boutou, Benin, is 83%.

Rainfall

In Boutou, in September, it is raining for 22.6 days, with typically 93mm (3.66") of accumulated precipitation. Throughout the year, there are 134.6 rainfall days, and 596mm (23.46") of precipitation is accumulated.

Daylight

In September, the average length of the day in Boutou is 12h and 11min.
On the first day of the month, sunrise is at 06:44 and sunset at 19:02. On the last day of September, in Boutou, sunrise is at 06:42 and sunset at 18:45 WAT.

Sunshine

In Boutou, the average sunshine in September is 8.1h.

UV index

In Boutou, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

September temperatures vary between a high-temperature of 29.8°C (85.6°F) and a low-temperature of 21.9°C (71.4°F). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 38°C (100.4°F).

The average relative humidity in September is 83%.

In Boutou, in September, during 22.6 rainfall days, 93mm (3.66") of precipitation is typically accumulated.

The average day length in September in Boutou is 12h and 11min.

On the first day of September in Boutou, Benin, sunrise is at 06:44 and sunset at 19:02. On the last day of the month, sunrise is at 06:42 and sunset at 18:45 WAT.

In Boutou, the average sunshine duration in September is 8.1h.

In September, the average daily maximum UV index in Boutou is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's 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
Boutou, Benin

  • Average high temperature in September: 29.8°C

The warmest month (with the highest average high temperature) is March (39°C).
The month with the lowest average high temperature is August (28.5°C).

  • Average low temperature in September: 21.9°C

The month with the highest average low temperature is April (24.8°C).
The coldest month (with the lowest average low temperature) is January (17.9°C).

Average pressure in September
Boutou, Benin

  • Average pressure in September: 1012.4mbar

The month with the highest atmospheric pressure is July (1012.9mbar).
The months with the lowest atmospheric pressure are March and April (1008.6mbar).

Average wind speed in September
Boutou, Benin

  • Average wind speed in September: 5.5km/h

The windiest months (with the highest average wind speed) are January and May (8.1km/h).
The calmest month (with the lowest average wind speed) is September (5.5km/h).

Average humidity in September
Boutou, Benin

  • Average humidity in September: 83%

The month with the highest relative humidity is August (86%).
The month with the lowest relative humidity is January (19%).

Average rainfall in September
Boutou, Benin

  • Average rainfall in September: 93mm

The wettest month (with the highest rainfall) is August (149mm).
The driest months (with the least rainfall) are January and December (0mm).

Average rainfall days in September
Boutou, Benin

  • Average rainfall days in September: 22.6 days

The month with the highest number of rainy days is August (25.8 days).
The month with the least rainy days is December (0.2 days).

Average daylight in September /
Average sunshine in September
Boutou, Benin

  • Average daylight in September: 12h and 12min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).

  • Average sunshine in September: 8h and 6min

The months with the most sunshine are January, November and December (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 6h and 30min).

Average sunshine days in September
Boutou, Benin

  • Average sunshine days in September: 5.5 days

The month with the most sunshine days is December (30.9 days).
The month with the least sunshine days is August (3.3 days).

Average UV index in September
Boutou, Benin

  • Average UV index in September: 7

The months with the highest UV index are February, March and April (UV index 8).
The months with the lowest UV index are July, August and December (UV index 6).

Average cloud cover in September
Boutou, Benin

  • Average cloud cover in September: 44

The month with the most cloud cover is August (Cloud cover 57).
The month with the least cloud cover is December (Cloud cover 3).

Average visibility in September
Boutou, Benin

  • Average visibility in September: 8km

The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The month with the lowest visibility is August (7km).