May weather forecast
Saï, French Guiana

The last month of the spring, May, is also a moderately hot month in Saï, French Guiana, with temperature in the range of an average high of 29.8°C (85.6°F) and an average low of 21.9°C (71.4°F).

Temperature

As May unfolds, the average high-temperature reaches a still warm 29.8°C (85.6°F), showing no fluctuation from the previous month. During the May nights, an average temperature of 21.9°C (71.4°F) is observed in Saï, French Guiana.

Heat index

For May, the heat index is appraised at a scorching 40°C (104°F). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. 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 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 evaporation of sweat is a natural cooling mechanism of the human body, facilitated 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. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

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

Rainfall

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

Daylight

The average length of the day in May is 12h and 17min.
On the first day of the month, sunrise is at 06:22 and sunset at 18:37. On the last day of May, sunrise is at 06:21 and sunset at 18:39 -03.

Sunshine

In Saï, the average sunshine in May is 5.1h.

UV index

The average daily maximum UV index in May is 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 typical high UV index of 6 in May suggests the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.