May weather forecast
Dégrad Reinald, French Guiana

The last month of the spring, May, is another warm month in Dégrad Reinald, French Guiana, with an average temperature fluctuating between 29.8°C (85.6°F) and 21.9°C (71.4°F).

Temperature

Dégrad Reinald's May is marked by a high-temperature average of a still warm 29.8°C (85.6°F), unchanged from the previous month. An average nighttime temperature of 21.9°C (71.4°F) is witnessed in Dégrad Reinald throughout May.

Heat index

For most parts of May, the heat index is calculated to be an extremely hot 40°C (104°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The primary way humans combat excessive warmth is by perspiring, letting sweat evaporate and cool the body. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

With an average relative humidity of 90%, May is the most humid month.

Rainfall

May is the month with the most rainfall in Dégrad Reinald, French Guiana. Rain falls for 25.9 days and accumulates 192mm (7.56") of precipitation.

Daylight

In May, the average length of the day is 12h and 15min.
On the first day of May in Dégrad Reinald, French Guiana, sunrise is at 06:23 and sunset at 18:36. On the last day of the month, sunrise is at 06:22 and sunset at 18:39 -03.

Sunshine

In May, the average sunshine is 5.1h.

UV index

The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily high UV index of 6 during May translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.