May weather forecast
Rio San Juan, Dominican Republic

May in Rio San Juan is characterized by further warming, with an underlying dampness due to persistent rainfall. And yes, May brings the highest rainfall of the year, an impressive 204mm (8.03"). Embodying a truly tropical nature, this doesn't hinder the city's vivacious activities. The increased humidity is offset by the longer days and clear blue skies. It's an opportune time to witness the city flourishing amidst showers, under the added advantage of prolonged sunlight.

Temperature

The advent of May in Rio San Juan reveals an average high-temperature of a still tropical 31°C (87.8°F), showing minimal difference from the prior month. Rio San Juan experiences an average low-temperature of 21°C (69.8°F) in month of May.

Rainfall

In Rio San Juan, in May, during 13 rainfall days, 204mm (8.03") of precipitation is typically accumulated. Throughout the year, in Rio San Juan, there are 162 rainfall days, and 1895mm (74.61") of precipitation is accumulated.

Sea temperature

In Rio San Juan, Dominican Republic, in May, the average water temperature is 26.9°C (80.4°F).
Note: With water temperature from 25°C (77°F) to 29°C (84.2°F), all water activities are comfortable and delightful, devoid of discomfort even for lengthened periods.

Daylight

In Rio San Juan, the average length of the day in May is 13h and 4min.
On the first day of the month, sunrise is at 06:11 and sunset at 19:03. On the last day of May, sunrise is at 06:00 and sunset at 19:15 AST.

Sunshine

In May, the average sunshine in Rio San Juan is 7h.

UV index

March through August, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an excessive health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, a daily maximum UV index of 12 leads to the following instructions:
Undertake every vital safety procedure, as unprotected skin and eyes could sustain burns in no time. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Sunscreen with a sun protection factor of no less than 30 should be used liberally and reapplied frequently on overcast days, including after every swim or outdoor activity. Caution! Sand and water surfaces escalate the UV intensity from the Sun.