May weather forecast
Gaston, French Guiana

The last month of the spring, May, is another warm month in Gaston, French Guiana, with temperature in the range of an average high of 28.8°C (83.8°F) and an average low of 22.3°C (72.1°F).

Temperature

As Gaston steps into May, the average high-temperature is measured at a still moderately hot 28.8°C (83.8°F), displaying minor differences from April's 28.7°C (83.7°F). During May, the average low-temperature is an agreeable 22.3°C (72.1°F).

Heat index

The average heat index in May is appraised at a torrid 37°C (98.6°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. 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 are extremely significant for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

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

Rainfall

The month with the most rainfall is May, when the rain falls for 29.8 days and typically aggregates up to 215mm (8.46") of precipitation.

Daylight

In Gaston, the average length of the day in May is 12h and 19min.
On the first day of May, sunrise is at 06:17 and sunset at 18:33. On the last day of the month, sunrise is at 06:15 and sunset at 18:36 -03.

Sunshine

In May, the average sunshine in Gaston, French Guiana, is 5.6h.

UV index

January through June and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 6 in May translates into the following instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.