September weather forecast
Ayem, Gabon

September, the first month of the spring in Ayem, is still a warm month, with temperature in the range of an average high of 29.1°C (84.4°F) and an average low of 20.7°C (69.3°F).

Temperature

In September, the average high-temperature is essentially the same as in August - a still warm 29.1°C (84.4°F). In Ayem, Gabon, in September, the average low-temperature is 20.7°C (69.3°F).

Heat index

The average heat index in September is estimated at a torrid 37°C (98.6°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, differences in body mass, height, and shape, wind). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

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

Rainfall

In Ayem, during September, the rain falls for 26.1 days and regularly aggregates up to 146mm (5.75") of precipitation. Throughout the year, in Ayem, there are 313.6 rainfall days, and 1610mm (63.39") of precipitation is accumulated.

Daylight

September has the shortest days of the year in Ayem, with an average of 12h and 7min of daylight.
On the first day of September, sunrise is at 06:11 and sunset at 18:18. On the last day of the month, sunrise is at 06:01 and sunset at 18:08 WAT.

Sunshine

In September, the average sunshine in Ayem is 5.5h.

UV index

The months with the lowest UV index in Ayem are September and October, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 in September interpret into the following advice:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.