December weather forecast
Issac, Gabon

The first month of the summer, December, is still a hot month in Issac, Gabon, with an average temperature ranging between min 23°C (73.4°F) and max 31.5°C (88.7°F).

Temperature

Issac's weather in December, with an average high-temperature of a still hot 31.5°C (88.7°F), subtly shifts from November's 30.5°C (86.9°F). Issac's nighttime temperature during December is consistently averaged at a warm 23°C (73.4°F).

Heat index

December's mean heat index is evaluated at a blazing hot 45°C (113°F). Prudent: Heat cramps and heat exhaustion are likely. Heatstroke becomes imminent with sustained exertion.
The metrics for the heat index are tailored for both shady environments and light winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Issac, the average relative humidity in December is 86%.

Rainfall

In Issac, during December, the rain falls for 26.4 days and regularly aggregates up to 144mm (5.67") of precipitation. In Issac, Gabon, during the entire year, the rain falls for 263 days and collects up to 1311mm (51.61") of precipitation.

Daylight

With an average of 12h and 12min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 06:05 and sunset at 18:13. On the last day of December, in Issac, sunrise is at 06:18 and sunset at 18:28 WAT.

Sunshine

The average sunshine in December in Issac is 7.3h.

UV index

January, February, April and December, with an average maximum UV index of 7, are months with the highest UV index in Issac, Gabon. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 7 in December translates into these instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.