June weather forecast
Saint Pierre, French Guiana

June, the first month of the summer in Saint Pierre, is still a warm month, with temperature in the range of an average low of 21.8°C (71.2°F) and an average high of 29.3°C (84.7°F).

Temperature

June's arrival registers an average high-temperature of a still moderately hot 29.3°C (84.7°F), closely aligning with the temperature of the previous month. Saint Pierre, in June, experiences an average temperature of 21.8°C (71.2°F) at night.

Heat index

For June, the heat index is appraised at a torrid 38°C (100.4°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In June, the average relative humidity in Saint Pierre is 89%.

Rainfall

In Saint Pierre, during June, the rain falls for 26.6 days and regularly aggregates up to 133mm (5.24") of precipitation. Throughout the year, there are 270.6 rainfall days, and 1131mm (44.53") of precipitation is accumulated.

Daylight

June has the longest days of the year in Saint Pierre, with an average of 12h and 18min of daylight.
On the first day of the month, sunrise is at 06:19 and sunset at 18:37. On the last day of June, sunrise is at 06:25 and sunset at 18:43 -03.

Sunshine

In June, the average sunshine in Saint Pierre is 6.8h.

UV index

The months with the lowest UV index are January through July, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 6 during June morphs into the following directions:
Fend off overexposure. Sun protection is vital. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.