November weather forecast
Barthélemy, French Guiana

Westher in Barthélemy in November sees rainfall increasing further to 73mm (2.87"), continuing October's upward trend. The tropical climate intensifies with the return of significant rainfall, accompanied by the usual warmth and humidity. Still, these changes come with a significantly high 11.2 hours of possible sunshine each day, second highest in the year. The prevailing wind speed does not change, providing a steady and gentle breeze across the city. Therefore, November reaffirms Barthélemy's tropical climate with its blend of increased rainfall, warmth, and substantial sunny hours.

Temperature

As Barthélemy welcomes November, the average high-temperature records at a still hot 30.8°C (87.4°F), marking an insignificant deviation from the prior month. An average nighttime temperature of 24.8°C (76.6°F) is observed during November.

Heat index

The average heat index in November is evaluated at an extremely hot 40°C (104°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. 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.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In November, the average relative humidity is 78%.

Rainfall

In Barthélemy, in November, it is raining for 16.4 days, with typically 73mm (2.87") of accumulated precipitation. In Barthélemy, during the entire year, the rain falls for 277 days and collects up to 1707mm (67.2") of precipitation.

Daylight

The average length of the day in November is 11h and 56min.
On the first day of November in Barthélemy, sunrise is at 06:14 and sunset at 18:12. On the last day of the month, sunrise is at 06:22 and sunset at 18:15 -03.

Sunshine

In Barthélemy, French Guiana, the average sunshine in November is 8.7h.

UV index

The months with the highest UV index are June through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In November, the UV index of 7 transforms into the following advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely.