April weather forecastSan Mateo, Philippines

Weather in April

April is a hot spring month in San Mateo, Philippines, with an average temperature fluctuating between 23.8°C (74.8°F) and 31.9°C (89.4°F).

Temperature

Shifting into April, San Mateo records an average high-temperature of a hot 31.9°C (89.4°F), presenting minor fluctuations compared to the previous month. An average low-temperature of 23.8°C (74.8°F) is noted during the nights in April.

Heat index

April's heat index is appraised at a blistering 42°C (107.6°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. 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 'apparent temperature' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The least humid month in San Mateo is April, with an average relative humidity of 75%.

Rainfall

In San Mateo, during April, the rain falls for 15.9 days and regularly aggregates up to 50mm (1.97") of precipitation. Throughout the year, in San Mateo, there are 250.5 rainfall days, and 1347mm (53.03") of precipitation is accumulated.

Daylight

In April, the average length of the day in San Mateo is 12h and 28min.
On the first day of the month, sunrise is at 5:50 am and sunset at 6:07 pm. On the last day of April, sunrise is at 5:32 am and sunset at 6:12 pm PST.

Sunshine

With an average of 11.2h of sunshine, April has the most sunshine of the year in San Mateo, Philippines.

UV index

February through October, with an average maximum UV index of 7, are months with the highest UV index in San Mateo. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In April, a daily maximum UV index of 7 leads to the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.