June weather forecast
Montagne Sable, French Guiana

The first month of the summer, June, is still a warm month in Montagne Sable, French Guiana, with an average temperature varying between 22.8°C (73°F) and 29.5°C (85.1°F).

Temperature

Montagne Sable, French Guiana, commences June with an average high-temperature of a still warm 29.5°C (85.1°F), maintaining the same temperature as the previous month. Montagne Sable's June nights cool down to an average low-temperature of 22.8°C (73°F).

Heat index

The heat index in June is computed to be a torrid 38°C (100.4°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. 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 particularly important 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.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The most humid month is June, with an average relative humidity of 88%.

Rainfall

In Montagne Sable, during June, the rain falls for 25.6 days and regularly aggregates up to 135mm (5.31") of precipitation. In Montagne Sable, during the entire year, the rain falls for 253 days and collects up to 878mm (34.57") of precipitation.

Daylight

With an average of 12h and 24min of daylight, June has the longest days of the year.
On the first day of June, sunrise is at 06:19 and sunset at 18:45. On the last day of the month, sunrise is at 06:25 and sunset at 18:51 -03.

Sunshine

In Montagne Sable, the average sunshine in June is 7.1h.

UV index

January through June and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 6 in June translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.