May weather forecast
Marilao, Philippines

The last month of the spring, May, is another hot month in Marilao, Philippines, with temperature in the range of an average high of 33.6°C (92.5°F) and an average low of 25.8°C (78.4°F).

Temperature

The peak of Marilao's temperatures is noted during April and May, averaging a high-temperature of 33.6°C (92.5°F).

Heat index

During May, the heat index is calculated to be a life-threatening hot 47°C (116.6°F). Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

In Marilao, the average relative humidity in May is 73%.

Rainfall

In Marilao, during May, the rain falls for 24.1 days and regularly aggregates up to 138mm (5.43") of precipitation. In Marilao, Philippines, during the entire year, the rain falls for 245.4 days and collects up to 1578mm (62.13") of precipitation.

Daylight

The average length of the day in May is 12h and 49min.
On the first day of May, sunrise is at 5:33 am and sunset at 6:13 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 6:22 pm PST.

Sunshine

In May, the average sunshine is 11.1h.

UV index

The months with the highest UV index in Marilao, Philippines, are February through June, August through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 7 in May, converts into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.