September weather forecastBarei, Benin
September
Weather in September
The first month of the autumn, September, is still a warm month in Barei, Benin, with an average temperature varying between 29.8°C (85.6°F) and 21.9°C (71.4°F).Temperature
Barei observes a minor difference in average high-temperatures between August's 28.5°C (83.3°F) and September's 29.8°C (85.6°F). Barei's nighttime temperature in September falls to an average of 21.9°C (71.4°F).Heat index
The heat index value during September is estimated at a very hot 38°C (100.4°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.The standards for the heat index are set for locations in shade and under light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
The average relative humidity in September is 83%.Rainfall
In Barei, during September, the rain falls for 22.6 days and regularly aggregates up to 93mm (3.66") of precipitation. Throughout the year, in Barei, there are 134.6 rainfall days, and 596mm (23.46") of precipitation is accumulated.Daylight
In Barei, Benin, the average length of the day in September is 12h and 11min.On the first day of September, 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 18:44 WAT.
Sunshine
In September, the average sunshine in Barei, Benin, is 8.1h.UV index
The average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 7 during September leads to these advisories:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Barei, 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
Barei, 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
Barei, 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
Barei, 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
Barei, 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
Barei, 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
Barei, 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
Barei, 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
Barei, 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
Barei, 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
Barei, 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).
