May weather forecast
Santiago, Philippines

May, the last month of the spring in Santiago, is also a hot month, with temperature in the range of an average low of 22.8°C (73°F) and an average high of 32.3°C (90.1°F).

Temperature

The ushering in of May brings an average high-temperature of a still hot 32.3°C (90.1°F), closely mirroring the 31°C (87.8°F) of April. Throughout May, an average nighttime temperature of 22.8°C (73°F) is experienced in Santiago.

Heat index

In May, the average heat index is calculated to be a blistering 44°C (111.2°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
Heat index specifics point out values are for conditions of shade and a slight breeze. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The least humid month is May, with an average relative humidity of 76%.

Rainfall

In Santiago, during May, the rain falls for 24.8 days and regularly aggregates up to 173mm (6.81") of precipitation. In Santiago, during the entire year, the rain falls for 275.8 days and collects up to 1583mm (62.32") of precipitation.

Daylight

In Santiago, the average length of the day in May is 12h and 55min.
On the first day of May, sunrise is at 5:28 am and sunset at 6:13 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 6:23 pm PST.

Sunshine

In Santiago, the average sunshine in May is 10.9h.

UV index

April through September, with an average maximum UV index of 7, are months with the highest UV index in Santiago. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 7 during May translates into the following guidance:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.