April weather forecast
Saï, French Guiana

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

Temperature

The shift into April uncovers an average high-temperature of a warm 29.8°C (85.6°F), subtly different from the previous month. Saï's average low-temperature for the month of April records at a pleasant 21.5°C (70.7°F).

Heat index

April's average heat index is appraised at a blisteringly hot 40°C (104°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

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

Rainfall

In April, in Saï, the rain falls for 26.3 days. Throughout April, 129mm (5.08") of precipitation is accumulated. Throughout the year, in Saï, there are 265.5 rainfall days, and 1078mm (42.44") of precipitation is accumulated.

Daylight

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

Sunshine

In Saï, the average sunshine in April is 4.6h.

UV index

In Saï, the average daily maximum UV index in April is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 6 during April translates into the following guidance:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. 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. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.