June weather forecast
Roche Hirondelle, French Guiana

June, the first month of the summer in Roche Hirondelle, is still a warm month, with an average temperature fluctuating between 28.8°C (83.8°F) and 24.5°C (76.1°F).

Temperature

The arrival of June sees a recorded average high-temperature of a still warm 28.8°C (83.8°F), showing little divergence from the previous month's conditions. Nighttime temperatures in Roche Hirondelle, French Guiana, record an average of 24.5°C (76.1°F) throughout June.

Heat index

During June, the heat index is appraised at a very hot 35°C (95°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The average relative humidity in June in Roche Hirondelle is 83%.

Rainfall

In Roche Hirondelle, in June, during 28.3 rainfall days, 244mm (9.61") of precipitation is typically accumulated. Throughout the year, there are 288 rainfall days, and 1773mm (69.8") of precipitation is accumulated.

Daylight

The month with the longest days is June, with an average of 12h and 24min of daylight.
On the first day of June, sunrise is at 06:18 and sunset at 18:43. On the last day of the month, sunrise is at 06:24 and sunset at 18:50 -03.

Sunshine

The average sunshine in June in Roche Hirondelle is 7.7h.

UV index

The months with the lowest UV index are January through June and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 6 in June translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.