June weather forecast
La Grève, French Guiana

June, the first month of the summer in La Grève, is a tropical month, with temperature in the range of an average low of 21.1°C (70°F) and an average high of 30.3°C (86.5°F).

Temperature

The commencement of June introduces an average high-temperature of a tropical 30.3°C (86.5°F), closely mirroring the preceding month. La Grève experiences an average nighttime temperature of 21.1°C (70°F) in the month of June.

Heat index

Throughout June, the heat index is appraised at a blistering 41°C (105.8°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In La Grève, the average relative humidity in June is 88%.

Rainfall

In La Grève, French Guiana, in June, during 24.5 rainfall days, 123mm (4.84") of precipitation is typically accumulated. In La Grève, 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 in La Grève.
On the first day of June in La Grève, sunrise is at 06:22 and sunset at 18:42. On the last day of the month, sunrise is at 06:28 and sunset at 18:48 -03.

Sunshine

In June, the average sunshine in La Grève is 6.6h.

UV index

The average daily maximum UV index in June in La Grève is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 6 in June translates into these instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. 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. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.