September weather forecast
Bongo, Gabon

September, the first month of the spring in Bongo, is still a tropical month, with an average temperature varying between 30.5°C (86.9°F) and 21.5°C (70.7°F).

Temperature

Bongo's September reports an average high-temperature of a still hot 30.5°C (86.9°F), exhibiting a minor difference from August. During the nights in September, Bongo observes an average low-temperature of 21.5°C (70.7°F).

Heat index

For most parts of September, the heat index is computed to be a fiery hot 39°C (102.2°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The average relative humidity in September in Bongo is 78%.

Rainfall

In Bongo, during September, the rain falls for 22.6 days and regularly aggregates up to 84mm (3.31") of precipitation. Throughout the year, in Bongo, Gabon, there are 297.6 rainfall days, and 1831mm (72.09") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 6min.
On the first day of the month, sunrise is at 06:16 and sunset at 18:21. On the last day of September, sunrise is at 06:05 and sunset at 18:12 WAT.

Sunshine

September has the least sunshine of the year, with an average of 5.3h of sunshine.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a regular UV index of 6 translates into these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.