May weather forecast
Apatou, French Guiana

May in Apatou witnesses the highest average rainfall of the year, at 137mm (5.39") over 28 days, comparatively more significant than the previous and coming months. The lush city, rich in its diverse plant life, relishes the heavy showers, framing a magnificent green canvas. The humidity further rises, saturating the air with moisture, and creating ideal conditions for the city's unique flora and fauna. Despite the reduced daylight hours, the city stays alive with the sound of falling rain and humming wildlife. May represents the city's wettest phase, deeply affecting its distinctive landscape and biodiversity.

Temperature

The advent of May presents an average high-temperature of a still warm 29.5°C (85.1°F), maintaining a close correlation with the preceding month. In Apatou, the expected average low-temperature for May is a still warm 23.3°C (73.9°F).

Heat index

The average heat index in May is evaluated at a fiery hot 38°C (100.4°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Heat index determinations are made taking into account the shade and light air movements. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of 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.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In May, the average relative humidity in Apatou is 86%.

Rainfall

May is the month with the most rainfall. Rain falls for 28 days and accumulates 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 06:25 and sunset at 18:43. On the last day of May, sunrise is at 06:23 and sunset at 18:47 -03.

Sunshine

The average sunshine in May in Apatou is 5.9h.

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 of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 during May translates into the following guidance:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.