May weather forecast
Bienvenue, French Guiana

May marks a record peak in rainfall with a staggering 195mm (7.68"), resulting in Bienvenue experiencing the epitome of its wet season. The weather oscillates between damp, warm atmospheres and periods of brilliant sunshine. The persistent clouds offer respite from the intensified brightness of sunlight, keeping the city's temperature at a comforting level. Despite the noticeable peak in rainfall, the wind speed further declines, reaching its lowest average speed for the year, barely stirring the tropical city's heavy air.

Temperature

Bienvenue's May reports an average high-temperature of a still warm 28.8°C (83.8°F), maintaining temperature equivalence with April. During May nights, Bienvenue witnesses a consistent average temperature of 22.3°C (72.1°F).

Heat index

May's mean heat index is computed to be a torrid 37°C (98.6°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

May is the most humid month, with an average relative humidity of 91%.

Rainfall

The month with the most rainfall in Bienvenue is May, when the rain falls for 28.9 days and typically aggregates up to 195mm (7.68") of precipitation.

Daylight

In Bienvenue, the average length of the day in May is 12h and 16min.
On the first day of the month, sunrise is at 06:20 and sunset at 18:34. On the last day of May, in Bienvenue, sunrise is at 06:19 and sunset at 18:37 -03.

Sunshine

In May, the average sunshine in Bienvenue, French Guiana, is 5.5h.

UV index

The months with the lowest UV index in Bienvenue, 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 threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 6 during May morphs into the following directions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.