May weather forecast
Rapu-Rapu, Philippines

The last month of the spring, May, is a hot month in Rapu-Rapu, Philippines, with an average temperature fluctuating between 30.3°C (86.5°F) and 26.1°C (79°F).

Temperature

May and June are identified as the warmest months, with an average high-temperature of 30.3°C (86.5°F).

Heat index

The heat index value for May is estimated at a sweltering 38°C (100.4°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Note that heat index values are valued for light wind and location in the shade. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. 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.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

May, June and August, with an average relative humidity of 79%, are the least humid months in Rapu-Rapu.

Rainfall

In Rapu-Rapu, during May, the rain falls for 20.7 days and regularly aggregates up to 99mm (3.9") of precipitation. Throughout the year, there are 266.9 rainfall days, and 1679mm (66.1") of precipitation is accumulated.

Sea temperature

In Rapu-Rapu, the average seawater temperature in May is 29.3°C (84.7°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In May, the average length of the day is 12h and 44min.
On the first day of May, sunrise is at 5:22 am and sunset at 5:59 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 6:07 pm PST.

Sunshine

The month with the most sunshine in Rapu-Rapu is May, with an average of 10h of sunshine.

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 7 translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Heads up! UV intensity is amplified by reflections from water and sand.