September weather forecast
Boualé, Gabon

The first month of the spring, September, is still a hot month in Boualé, Gabon, with temperature in the range of an average high of 30.7°C (87.3°F) and an average low of 22.2°C (72°F).

Temperature

The beginning of September records an average high-temperature of a still tropical 30.7°C (87.3°F), marking a negligible difference from August's 30.7°C (87.3°F). During the month of September, the temperature falls to an average of 22.2°C (72°F).

Heat index

The average heat index in September is appraised at an extremely hot 40°C (104°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to 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.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In September, the average relative humidity is 80%.

Rainfall

In Boualé, in September, during 19.2 rainfall days, 62mm (2.44") of precipitation is typically accumulated. In Boualé, during the entire year, the rain falls for 263 days and collects up to 1311mm (51.61") of precipitation.

Daylight

In September, the average length of the day is 12h and 7min.
On the first day of the month, sunrise is at 06:16 and sunset at 18:22. 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 5.2h of sunshine.

UV index

The months with the lowest UV index are March, May through November, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Boost your sun resistance with garments that are densely woven yet spacious.