May weather forecast
Maman Valentin, French Guiana

The last month of the spring, May, is also a moderately hot month in Maman Valentin, French Guiana, with an average temperature fluctuating between 23.3°C (73.9°F) and 29.5°C (85.1°F).

Temperature

As April transitions into May, the average high-temperature rests at a still warm 29.5°C (85.1°F), maintaining a close resemblance to the previous month. Maman Valentin, during May, witnesses an average low-temperature of 23.3°C (73.9°F).

Heat index

In May, the heat index is computed to be a sweltering 38°C (100.4°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. 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. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In May, the average relative humidity is 86%.

Rainfall

The month with the most rainfall in Maman Valentin is May, when the rain falls for 28 days and typically aggregates up to 137mm (5.39") of precipitation.

Daylight

The average length of the day in May is 12h and 22min.
On the first day of the month, sunrise is at 06:22 and sunset at 18:41. On the last day of May, in Maman Valentin, sunrise is at 06:20 and sunset at 18:44 -03.

Sunshine

In Maman Valentin, French Guiana, the average sunshine in May is 5.9h.

UV index

The months with the lowest UV index are January through June and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 6 in May translates into the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.