April weather forecast
Calawis, Philippines

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

Temperature

The arrival of April sees a recorded average high-temperature of a hot 31.9°C (89.4°F), showing little divergence from the previous month's conditions. Calawis records an average low-temperature of 23.8°C (74.8°F) throughout the month of April.

Heat index

In April, the heat index is computed to be an extremely hot 42°C (107.6°F). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant 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.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

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

Rainfall

In Calawis, in April, it is raining for 15.9 days, with typically 50mm (1.97") of accumulated precipitation. In Calawis, during the entire year, the rain falls for 250.5 days and collects up to 1347mm (53.03") of precipitation.

Daylight

In Calawis, the average length of the day in April is 12h and 28min.
On the first day of April, sunrise is at 5:50 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 6:11 pm PST.

Sunshine

With an average of 11.2h of sunshine, April has the most sunshine of the year in Calawis.

UV index

The months with the highest UV index in Calawis are February through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In April, a daily UV index of 7 turns into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.