April weather forecastCalasiao, Philippines
April
Weather in April
April, like March, is another tropical spring month in Calasiao, Philippines, with an average temperature fluctuating between 24.3°C (75.7°F) and 34.5°C (94.1°F).Temperature
April is the month when Calasiao's temperatures reach their peak, with averages of 34.5°C (94.1°F) and lows of 24.3°C (75.7°F).Heat index
In April, the average heat index is computed to be a blazing hot 47°C (116.6°F). Guard: Heat exhaustion and heat cramps are foreseeable. Prolonged effort may bring about heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. 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. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
March and April, with an average relative humidity of 67%, are the least humid months.Rainfall
In April, in Calasiao, the rain falls for 13.8 days. Throughout April, 35mm (1.38") of precipitation is accumulated. Throughout the year, there are 187.6 rainfall days, and 1079mm (42.48") of precipitation is accumulated.Daylight
In Calasiao, the average length of the day in April is 12h and 30min.On the first day of the month, sunrise is at 5:53 am and sunset at 6:11 pm. On the last day of April, sunrise is at 5:34 am and sunset at 6:16 pm PST.
Sunshine
With an average of 11.5h of sunshine, April has the most sunshine of the year.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Calasiao are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: In April, the maximum UV index of 7 suggests these recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Calasiao, Philippines
- Average high temperature in April: 34.5°C
The warmest month (with the highest average high temperature) is April (34.5°C).
The month with the lowest average high temperature is August (30.5°C).
- Average low temperature in April: 24.3°C
The month with the highest average low temperature is May (25.5°C).
The coldest month (with the lowest average low temperature) is January (21.6°C).
Average pressure in April
Calasiao, Philippines
- Average pressure in April: 1011.4mbar
The month with the highest atmospheric pressure is February (1013.8mbar).
The month with the lowest atmospheric pressure is August (1007.5mbar).
Average wind speed in April
Calasiao, Philippines
- Average wind speed in April: 8.2km/h
The windiest months (with the highest average wind speed) are January, February and April (8.2km/h).
The calmest month (with the lowest average wind speed) is September (7.3km/h).
Average humidity in April
Calasiao, Philippines
- Average humidity in April: 67%
The month with the highest relative humidity is September (83%).
The months with the lowest relative humidity are March and April (67%).
Average rainfall in April
Calasiao, Philippines
- Average rainfall in April: 35mm
The wettest month (with the highest rainfall) is August (240mm).
The driest month (with the least rainfall) is January (7mm).
Average rainfall days in April
Calasiao, Philippines
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is July (28.4 days).
The month with the least rainy days is January (3.8 days).
Average daylight in April /
Average sunshine in April
Calasiao, Philippines
- Average daylight in April: 12h and 30min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in April: 11h and 30min
The month with the most sunshine is April (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 7h and 24min).
Average sunshine days in April
Calasiao, Philippines
- Average sunshine days in April: 14.6 days
The month with the most sunshine days is January (26.8 days).
The month with the least sunshine days is July (2 days).
Average UV index in April
Calasiao, Philippines
- Average UV index in April: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in April
Calasiao, Philippines
- Average cloud cover in April: 23
The month with the most cloud cover is August (Cloud cover 45).
The months with the least cloud cover are January, February and December (Cloud cover 20).
Average visibility in April
Calasiao, Philippines
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, November and December (10km).
The months with the lowest visibility are June, July, August, September and October (9km).





