May weather forecast
Mariveles, Philippines

The last month of the spring, May, is another hot month in Mariveles, Philippines, with an average temperature ranging between max 31.8°C (89.2°F) and min 26.8°C (80.2°F).

Temperature

The warmest months are April and May, with an average high-temperature of 31.8°C (89.2°F).

Heat index

May's mean heat index is calculated to be a scorching 42°C (107.6°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The average relative humidity in May is 75%.

Rainfall

In May, the rain falls for 20.7 days. Throughout May, 138mm (5.43") of precipitation is accumulated. Throughout the year, there are 206.5 rainfall days, and 1288mm (50.71") of precipitation is accumulated.

Sea temperature

The month with the warmest seawater in Mariveles is May, with an average sea temperature of 29.9°C (85.8°F).
Note: In water activities such as swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed highly pleasurable for extended periods without any unease.

Daylight

In Mariveles, the average length of the day in May is 12h and 48min.
On the first day of May, sunrise is at 5:35 am and sunset at 6:14 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 6:23 pm PST.

Sunshine

In May, the average sunshine is 10.9h.

UV index

January through June, August through December, 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 rays for the ordinary person.
Note: In May, a regular UV index of 7 translates into these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Heads up! UV intensity is amplified by reflections from water and sand.