June weather forecastSiminiout, French Guiana

Weather in June

The first month of the summer, June, is also a moderately hot month in Siminiout, French Guiana, 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

The advent of June presents an average high-temperature of a still moderately hot 29.3°C (84.7°F), maintaining a close correlation with the preceding month. Throughout June, Siminiout encounters an average temperature drop to a pleasant 21.8°C (71.2°F).

Heat index

During June, the heat index is appraised at a sweltering 38°C (100.4°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. 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 'real feel' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The average relative humidity in June in Siminiout is 89%.

Rainfall

In Siminiout, in June, during 26.6 rainfall days, 133mm (5.24") of precipitation is typically accumulated. Throughout the year, in Siminiout, there are 270.6 rainfall days, and 1131mm (44.53") of precipitation is accumulated.

Daylight

June has the longest days of the year in Siminiout, with an average of 12h and 18min of daylight.
On the first day of June, sunrise is at 06:20 and sunset at 18:37. On the last day of the month, sunrise is at 06:26 and sunset at 18:43 -03.

Sunshine

In June, the average sunshine in Siminiout, French Guiana, is 6.8h.

UV index

The months with the lowest UV index in Siminiout, French Guiana, 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 unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 6 during June translates into the following directions:
Ward off overexposure. Defence against solar harm is crucial. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.