April weather forecast
Certitude, French Guiana

April, the same as March, is another warm spring month in Certitude, French Guiana, with an average temperature ranging between min 21.5°C (70.7°F) and max 29.8°C (85.6°F).

Temperature

With the onset of April, Certitude's average high-temperature clocks in at a moderately hot 29.8°C (85.6°F), showing a minor fluctuation from the previous month. Certitude, in April, experiences an average temperature of 21.5°C (70.7°F) at night.

Heat index

The heat index in April is estimated at a blisteringly hot 40°C (104°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Certitude, the average relative humidity in April is 89%.

Rainfall

In Certitude, in April, it is raining for 26.3 days, with typically 129mm (5.08") of accumulated precipitation. Throughout the year, in Certitude, there are 265.5 rainfall days, and 1078mm (42.44") of precipitation is accumulated.

Daylight

In Certitude, the average length of the day in April is 12h and 13min.
On the first day of April, sunrise is at 06:32 and sunset at 18:41. On the last day of the month, sunrise is at 06:22 and sunset at 18:37 -03.

Sunshine

The average sunshine in April in Certitude is 4.6h.

UV index

The average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In April, an average UV index of 6 transforms into the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.