May weather forecast
Manila, Philippines

May in Manila brings some respite from the relentless summer heat, introducing hints of the approaching monsoon. The rainfall spikes significantly in May, approximately double from April, indicating the onset of the wet season. This month is marked by an increase in humidity, which reaches 72%, showing a clear transition from the previous month's dry spell. Contrasting with the drier month of April, May carries a high chance of overcast skies, offering relief to the city's inhabitants. As the month progresses towards June, both rainfall and humidity continue to rise.

Temperature

May, marked by an average high-temperature of 33.4°C (92.1°F) and a low-temperature of 26.4°C (79.5°F), is the warmest month.

Heat index

May's average heat index is appraised at a burning hot 46°C (114.8°F). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Manila, the average relative humidity in May is 72%.

Rainfall

In Manila, Philippines, in May, it is raining for 19.9 days, with typically 75mm (2.95") of accumulated precipitation. In Manila, during the entire year, the rain falls for 185 days and collects up to 830mm (32.68") of precipitation.

Sea temperature

The month with the warmest seawater in Manila, Philippines, is May, with an average sea temperature of 29.8°C (85.6°F).
Note: For engaging in any water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

In May, the average length of the day is 12h and 49min.
On the first day of the month, sunrise is at 5:33 am and sunset at 6:13 pm. On the last day of May, sunrise is at 5:25 am and sunset at 6:21 pm PST.

Sunshine

The average sunshine in May in Manila is 11.1h.

UV index

The months with the highest UV index in Manila are February through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during May leads to these instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Boost your sun resistance with garments that are densely woven yet spacious. Stay vigilant! UV rays get a boost in intensity due to sand and water reflections.