April weather forecast
Siminiout, French Guiana

April, the same as March, is another warm spring month in Siminiout, French Guiana, with an average temperature fluctuating between 28.8°C (83.8°F) and 22.4°C (72.3°F).

Temperature

Siminiout's climate in April displays an average high temperature of a still warm 28.8°C (83.8°F), consistent with the March's record. Siminiout's nighttime temperature during April is consistently averaged at a pleasant 22.4°C (72.3°F).

Heat index

The heat index value during April is appraised at a fiery hot 36°C (96.8°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', offers an insight into how hot it feels when we factor in moisture content. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

In April, the average relative humidity is 90%.

Rainfall

In Siminiout, in April, it is raining for 26.5 days, with typically 142mm (5.59") of accumulated precipitation. Throughout the year, in Siminiout, French Guiana, there are 270.6 rainfall days, and 1131mm (44.53") of precipitation is accumulated.

Daylight

In April, the average length of the day in Siminiout is 12h and 11min.
On the first day of the month, sunrise is at 06:30 and sunset at 18:39. On the last day of April, in Siminiout, sunrise is at 06:21 and sunset at 18:35 -03.

Sunshine

The average sunshine in April is 4.8h.

UV index

The months with the lowest UV index in Siminiout are January through July, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: An average maximum UV index of 6 in April leads to these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Enhance your sun protection with tightly woven, yet airy clothing.