May weather forecast
Rizal, Philippines

The last month of the spring, May, is also a hot month in Rizal, Philippines, with an average temperature varying between 24°C (75.2°F) and 31.4°C (88.5°F).

Temperature

Rizal, Philippines, records the warmest temperatures in May, averaging a high of 31.4°C (88.5°F) and a low of 24°C (75.2°F).

Heat index

During May, the heat index is computed to be a blisteringly hot 43°C (109.4°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Rizal, the average relative humidity in May is 81%.

Rainfall

In Rizal, in May, during 27.1 rainfall days, 222mm (8.74") of precipitation is typically accumulated. In Rizal, during the entire year, the rain falls for 313.5 days and collects up to 1700mm (66.93") of precipitation.

Daylight

The average length of the day in May is 12h and 49min.
On the first day of the month, sunrise is at 5:31 am and sunset at 6:11 pm. On the last day of May, sunrise is at 5:24 am and sunset at 6:20 pm PST.

Sunshine

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

UV index

The months with the highest UV index in Rizal are March through May, August and September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In May, the UV index of 7 transforms into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. 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. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.