June weather forecast
Grigel, French Guiana

The first month of the summer, June, is a hot month in Grigel, French Guiana, with an average temperature fluctuating between 21.1°C (70°F) and 30.3°C (86.5°F).

Temperature

Grigel notes an average high-temperature of a tropical 30.3°C (86.5°F) in June, displaying minor variation from May. Nighttime temperatures in June average to a pleasant 21.1°C (70°F) in Grigel.

Heat index

The average heat index in June is computed to be an extremely hot 41°C (105.8°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In June, the average relative humidity is 88%.

Rainfall

In Grigel, in June, during 24.5 rainfall days, 123mm (4.84") of precipitation is typically accumulated. In Grigel, during the entire year, the rain falls for 265.5 days and collects up to 1078mm (42.44") of precipitation.

Daylight

With an average of 12h and 18min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 06:23 and sunset at 18:41. On the last day of June, sunrise is at 06:29 and sunset at 18:47 -03.

Sunshine

In June, the average sunshine is 6.6h.

UV index

In Grigel, French Guiana, the average daily maximum UV index in June is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In June, the maximum UV index of 6 transforms into these recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.