May weather forecast
Santo Tomas, Philippines

May, the last month of the spring in Santo Tomas, is another tropical month, with temperature in the range of an average low of 23.8°C (74.8°F) and an average high of 31.1°C (88°F).

Temperature

In Santo Tomas, Philippines, the average temperatures in May are the highest, with a peak at 31.1°C (88°F) and a low of 23.8°C (74.8°F).

Heat index

The heat index value for May is appraised at an extremely hot 42°C (107.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'felt air temperature', melds the effects of warmth and moisture to generate a feeling of heat. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Santo Tomas, the average relative humidity in May is 82%.

Rainfall

In Santo Tomas, Philippines, during May, the rain falls for 24.3 days and regularly aggregates up to 194mm (7.64") of precipitation. Throughout the year, in Santo Tomas, there are 300.8 rainfall days, and 1601mm (63.03") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 47min.
On the first day of May in Santo Tomas, sunrise is at 5:33 am and sunset at 6:11 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 6:20 pm PST.

Sunshine

May has the most sunshine of the year in Santo Tomas, with an average of 10.2h of sunshine.

UV index

The months with the highest UV index in Santo Tomas are March through June, August and September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 7 in May interprets into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.