April weather forecast
Lioni, French Guiana

April, like March, is another hot spring month in Lioni, French Guiana, with an average temperature varying between 21.6°C (70.9°F) and 30.2°C (86.4°F).

Temperature

The transition into April shows a subtle variation to a still hot 30.2°C (86.4°F) from March's 30.4°C (86.7°F) in the average high-temperature. During April, the nighttime temperature averages of 21.6°C (70.9°F).

Heat index

April's mean heat index is computed to be a blisteringly hot 40°C (104°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In April, the average relative humidity in Lioni is 87%.

Rainfall

In Lioni, French Guiana, during April, the rain falls for 26.8 days and regularly aggregates up to 114mm (4.49") of precipitation. In Lioni, during the entire year, the rain falls for 259.6 days and collects up to 915mm (36.02") of precipitation.

Daylight

In April, the average length of the day is 12h and 13min.
On the first day of the month, sunrise is at 06:36 and sunset at 18:45. On the last day of April, sunrise is at 06:26 and sunset at 18:42 -03.

Sunshine

In April, the average sunshine is 5.1h.

UV index

In Lioni, the average daily maximum UV index in April is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In April, the maximum UV index of 6 transforms into these recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.