May weather forecast
Santa Catalina, Philippines

The last month of the spring, May, is another warm month in Santa Catalina, Philippines, with an average temperature ranging between min 25.9°C (78.6°F) and max 29.9°C (85.8°F).

Temperature

The onset of May brings with it an average high-temperature of a moderately hot 29.9°C (85.8°F), showing a negligible variation from the month before. Santa Catalina maintains an average low-temperature of 25.9°C (78.6°F) throughout May's nights.

Heat index

The heat index value for May is evaluated at a fiery hot 37°C (98.6°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

The average relative humidity in May is 77%.

Rainfall

In Santa Catalina, in May, it is raining for 25.5 days, with typically 128mm (5.04") of accumulated precipitation. In Santa Catalina, during the entire year, the rain falls for 248 days and collects up to 1170mm (46.06") of precipitation.

Sea temperature

In Santa Catalina, Philippines, in May, the average water temperature is 29.3°C (84.7°F).
Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.

Daylight

The average length of the day in May in Santa Catalina, Philippines, is 12h and 33min.
On the first day of the month, sunrise is at 5:31 am and sunset at 5:59 pm. On the last day of May, sunrise is at 5:27 am and sunset at 6:04 pm PST.

Sunshine

May has the most sunshine of the year, with an average of 10.3h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Santa Catalina. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum UV index of 7 in May translates into the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Watch out! Sand and water enhance the UV exposure you receive.