April weather forecast
Libreville, Gabon

In April, Libreville's climatic temperament witnesses moderate rainfall with a high of 173mm (6.81"). Compared to March, the number of rainy days decreases, but the volume of rainfall observes an increase. Concurrently, maximum wind speed registers a slight decrease. Disguised by warm and humid weather, the high-pressure system prevails throughout the month. The warmth of the ocean continues to extend an inviting call to visitors, with temperatures promoting a calming dip amidst the tropical heat.

Temperature

April's onset sees an average high-temperature of a warm 29.8°C (85.6°F), exhibiting a slight fluctuation from the previous month. April's average low temperature is 25°C (77°F), displaying a subtle drop from its daily peak.

Heat index

In April, the average heat index is calculated to be a very hot 38°C (100.4°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In Libreville, Gabon, the average relative humidity in April is 82%.

Rainfall

In Libreville, in April, it is raining for 27.3 days, with typically 173mm (6.81") of accumulated precipitation. In Libreville, during the entire year, the rain falls for 274.1 days and collects up to 1477mm (58.15") of precipitation.

Sea temperature

In Libreville, the average seawater temperature in April is 28.9°C (84°F).
Note: Water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are pleasurable, without feeling uncomfortable even during extended periods.

Daylight

In Libreville, Gabon, the average length of the day in April is 12h and 8min.
On the first day of April, sunrise is at 06:22 and sunset at 18:29. On the last day of the month, sunrise is at 06:15 and sunset at 18:23 WAT.

Sunshine

In Libreville, Gabon, the average sunshine in April is 7.9h.

UV index

The months with the highest UV index in Libreville are January through May, November and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 7 during April, leads to the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Boost your sun resistance with garments that are densely woven yet spacious. Caution! The Sun's UV rays become stronger due to reflections from water and sand.