May weather forecast
San Antonio, Philippines

May, the last month of the spring in San Antonio, is another tropical month, with an average temperature varying between 26.4°C (79.5°F) and 31.4°C (88.5°F).

Temperature

May is the month when San Antonio, Philippines, experiences its warmest temperatures, averaging a high of 31.4°C (88.5°F) and a low of 26.4°C (79.5°F).

Heat index

The heat index value during May is estimated at an extremely hot 40°C (104°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial 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.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

The average relative humidity in May in San Antonio is 75%.

Rainfall

In San Antonio, in May, it is raining for 25.1 days, with typically 119mm (4.69") of accumulated precipitation. Throughout the year, there are 237.5 rainfall days, and 1892mm (74.49") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 49min.
On the first day of the month, sunrise is at 5:36 am and sunset at 6:17 pm. On the last day of May, in San Antonio, sunrise is at 5:28 am and sunset at 6:25 pm PST.

Sunshine

The average sunshine in May in San Antonio is 11.1h.

UV index

The months with the highest UV index in San Antonio are February through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The daily maximum UV index of 7 in May interprets into the following advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.