May weather forecast
Greenville, Liberia

In contrast to the previous months, May records an abrupt rise in rainfall, amounting to approximately 160mm (6.3"). The number of days with rainfall also upsurge, marking the onset of the rainy season. On account of this, Greenville is characterised by wetter and cooler days during this month, compared to the previous months. Regardless of the rain, temperatures remain warm, although sea temperatures start to drop.

Temperature

Greenville's weather in May, with an average high-temperature of a warm 29.3°C (84.7°F), subtly shifts from April's 30.5°C (86.9°F). A minimal decline in temperature from daytime highs is anticipated throughout the May nights, averaging 25°C (77°F).

Heat index

During May, the heat index is calculated to be a torrid 36°C (96.8°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in May in Greenville is 82%.

Rainfall

In Greenville, in May, it is raining for 26.8 days, with typically 160mm (6.3") of accumulated precipitation. In Greenville, during the entire year, the rain falls for 294.8 days and collects up to 1200mm (47.24") of precipitation.

Sea temperature

May is the month with the warmest seawater, with an average sea temperature of 29.1°C (84.4°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

In May, the average length of the day is 12h and 21min.
On the first day of May, sunrise is at 06:24 and sunset at 18:42. On the last day of the month, sunrise is at 06:22 and sunset at 18:45 GMT.

Sunshine

In Greenville, the average sunshine in May is 7.5h.

UV index

January through May and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 7 in May translates into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Beware! Reflections from sand and water can intensify the Sun's UV radiation.