October weather forecast
Bienvenue, French Guiana

October maintains the consistent pattern of the preceding month, with an almost parallel quantity of rainfall. The weather remains steadily warm, with temperatures deviating minimally from September. While the daylight hours begin to recede slightly, the actual duration of sunshine dwindles minimally. With an average wind speed ticking slightly higher to 6.1km/h (3.8mph), the winds softly caress the cityscape.

Temperature

Bienvenue's October weather, with an average high temperature of 34.3°C (93.7°F) and an average low temperature of 22.2°C (72°F), tends to be the warmest of the year.

Heat index

The average heat index in October is computed to be a burning hot 51°C (123.8°F). Caution: Heat cramps along with heat exhaustion are expected. Sustained activity could lead to heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

The least humid month is October, with an average relative humidity of 75%.

Rainfall

In Bienvenue, in October, during 12 rainfall days, 22mm (0.87") of precipitation is typically accumulated. In Bienvenue, during the entire year, the rain falls for 270.6 days and collects up to 1131mm (44.53") of precipitation.

Daylight

In October, the average length of the day in Bienvenue, French Guiana, is 12h and 3min.
On the first day of the month, sunrise is at 06:17 and sunset at 18:22. On the last day of October, in Bienvenue, sunrise is at 06:14 and sunset at 18:14 -03.

Sunshine

In Bienvenue, the average sunshine in October is 8.7h.

UV index

The months with the highest UV index in Bienvenue are August through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In October, the UV index of 7 transforms into the following advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Enhance your sun protection with tightly woven, yet airy clothing.