April weather forecast
Rizal, Philippines

April in Rizal, Philippines, is a tropical spring month, with an average temperature fluctuating between 31°C (87.8°F) and 23.2°C (73.8°F).

Temperature

Rizal marks the onset of April with an average high-temperature of a hot 31°C (87.8°F), subtly divergent from March's 29.2°C (84.6°F). During April, Rizal records a consistent average nighttime temperature of 23.2°C (73.8°F).

Heat index

In April, the average heat index is computed to be a blisteringly hot 40°C (104°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

April is the least humid month, with an average relative humidity of 78%.

Rainfall

In April, the rain falls for 21.3 days. Throughout April, 67mm (2.64") of precipitation is accumulated. In Rizal, during the entire year, the rain falls for 313.5 days and collects up to 1700mm (66.93") of precipitation.

Daylight

In April, the average length of the day in Rizal is 12h and 28min.
On the first day of April in Rizal, 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

The months with the most sunshine are April and May, with an average of 10.1h of sunshine.

UV index

March through May, August and September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 7 in April transforms into this advice:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.