September weather forecastLanta, Benin
September
Weather in September
The first month of the autumn, September, is a tropical month in Lanta, Benin, with an average temperature fluctuating between 30.6°C (87.1°F) and 22.6°C (72.7°F).Temperature
The beginning of September records an average high-temperature of a hot 30.6°C (87.1°F), almost echoing the conditions of the previous month. Lanta records an average low-temperature of 22.6°C (72.7°F) throughout the month of September.Heat index
For September, the heat index is estimated at a blisteringly hot 41°C (105.8°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
With an average relative humidity of 84%, September is the most humid month.Rainfall
In Lanta, in September, it is raining for 26.5 days, with typically 119mm (4.69") of accumulated precipitation. Throughout the year, there are 207.1 rainfall days, and 739mm (29.09") of precipitation is accumulated.Daylight
The average length of the day in September in Lanta, Benin, is 12h and 10min.On the first day of September, sunrise is at 06:44 and sunset at 18:59. On the last day of the month, sunrise is at 06:40 and sunset at 18:44 WAT.
Sunshine
In Lanta, the average sunshine in September is 6.5h.UV index
The average daily maximum UV index in September in Lanta 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 ordinary person.Note: In September, an average UV index of 7 transforms into the following instructions:
Fend off overexposure. Sun protection is vital. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lanta, Benin
- Average high temperature in September: 30.6°C
The warmest month (with the highest average high temperature) is February (37.8°C).
The month with the lowest average high temperature is August (29.8°C).
- Average low temperature in September: 22.6°C
The month with the highest average low temperature is March (25.3°C).
The coldest month (with the lowest average low temperature) is August (21.8°C).
Average pressure in September
Lanta, Benin
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is July (1013.4mbar).
The months with the lowest atmospheric pressure are February and March (1009.3mbar).
Average wind speed in September
Lanta, Benin
- Average wind speed in September: 6.8km/h
The windiest month (with the highest average wind speed) is March (9km/h).
The calmest month (with the lowest average wind speed) is December (6.2km/h).
Average humidity in September
Lanta, Benin
- Average humidity in September: 84%
The month with the highest relative humidity is September (84%).
The month with the lowest relative humidity is January (53%).
Average rainfall in September
Lanta, Benin
- Average rainfall in September: 119mm
The wettest month (with the highest rainfall) is July (129mm).
The driest month (with the least rainfall) is December (3mm).
Average rainfall days in September
Lanta, Benin
- Average rainfall days in September: 26.5 days
The month with the highest number of rainy days is August (27.5 days).
The month with the least rainy days is December (3.5 days).
Average daylight in September /
Average sunshine in September
Lanta, Benin
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in September: 6h and 30min
The month with the most sunshine is December (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 5h and 48min).
Average sunshine days in September
Lanta, Benin
- Average sunshine days in September: 2.1 days
The month with the most sunshine days is December (25.5 days).
The month with the least sunshine days is August (1.9 days).
Average UV index in September
Lanta, Benin
- Average UV index in September: 7
The month with the highest UV index is February (UV index 8).
The months with the lowest UV index are July and August (UV index 6).
Average cloud cover in September
Lanta, Benin
- Average cloud cover in September: 59
The month with the most cloud cover is August (Cloud cover 62).
The month with the least cloud cover is December (Cloud cover 14).
Average visibility in September
Lanta, Benin
- Average visibility in September: 7km
The months with the highest visibility are February, March and April (10km).
The month with the lowest visibility is September (7km).





