June weather forecast
Petit Cayenne, French Guiana

The first month of the summer, June, is also a moderately hot month in Petit Cayenne, French Guiana, with an average temperature ranging between max 28.8°C (83.8°F) and min 23.8°C (74.8°F).

Temperature

June's weather records an average high-temperature of a still warm 28.8°C (83.8°F), showing little deviation from May. Night temperatures during June in Petit Cayenne, French Guiana, experience a slight downturn, averaging a still warm 23.8°C (74.8°F).

Heat index

In June, the heat index is evaluated at a very hot 35°C (95°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Heat index specifics point out values are for conditions of shade and a slight breeze. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In Petit Cayenne, French Guiana, the average relative humidity in June is 84%.

Rainfall

In Petit Cayenne, French Guiana, in June, during 28.2 rainfall days, 234mm (9.21") of precipitation is typically accumulated. In Petit Cayenne, during the entire year, the rain falls for 277 days and collects up to 1707mm (67.2") 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 the month, sunrise is at 06:15 and sunset at 18:39. On the last day of June, in Petit Cayenne, French Guiana, sunrise is at 06:21 and sunset at 18:45 -03.

Sunshine

In Petit Cayenne, French Guiana, the average sunshine in June is 7.5h.

UV index

June through November, with an average maximum UV index of 7, are months with the highest UV index in Petit Cayenne, French Guiana. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 7 in June translates into the following recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.