September weather forecast
Lanta, Benin

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.