May weather forecast
Santander, Philippines

May, the last month of the spring in Santander, is also a moderately hot month, with an average temperature ranging between max 29.8°C (85.6°F) and min 26.7°C (80.1°F).

Temperature

The warmest period tends to be May, when average temperatures fluctuate between a high of 29.8°C (85.6°F) and a low of 26.7°C (80.1°F).

Heat index

The average heat index in May is calculated to be a sweltering 36°C (96.8°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

May is the least humid month in Santander, with an average relative humidity of 76%.

Rainfall

In Santander, in May, during 23.9 rainfall days, 102mm (4.02") of precipitation is typically accumulated. Throughout the year, in Santander, Philippines, there are 269 rainfall days, and 899mm (35.39") of precipitation is accumulated.

Sea temperature

In Santander, Philippines, the average seawater temperature in May is 29.1°C (84.4°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In Santander, the average length of the day in May is 12h and 34min.
On the first day of the month, sunrise is at 5:29 am and sunset at 5:57 pm. On the last day of May, sunrise is at 5:25 am and sunset at 6:03 pm PST.

Sunshine

In May, the average sunshine is 9.7h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Santander, Philippines, are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In May, an average UV index of 7 transforms into the following instructions:
Deflect overexposure. Sun protection is a necessity. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Boost your sun resistance with garments that are densely woven yet spacious. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.