May weather forecast
San Andres, Philippines

May, the last month of the spring in San Andres, is a tropical month, with an average temperature varying between 25.7°C (78.3°F) and 30.8°C (87.4°F).

Temperature

With an average high-temperature of 30.8°C (87.4°F) and an average low-temperature of 25.7°C (78.3°F), May is the warmest month.

Heat index

The heat index in May is calculated to be an extremely hot 40°C (104°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
The standards for the heat index are set for locations in shade and under light breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

The least humid month in San Andres, Philippines, is May, with an average relative humidity of 79%.

Rainfall

In San Andres, in May, it is raining for 19.9 days, with typically 75mm (2.95") of accumulated precipitation. Throughout the year, there are 274.1 rainfall days, and 1270mm (50") of precipitation is accumulated.

Sea temperature

In San Andres, the average seawater temperature in May is 29.3°C (84.7°F).
Note: For activities such as swimming and diving, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.

Daylight

The average length of the day in May is 12h and 46min.
On the first day of the month, sunrise is at 5:22 am and sunset at 5:59 pm. On the last day of May, sunrise is at 5:15 am and sunset at 6:07 pm PST.

Sunshine

With an average of 10.9h of sunshine, May has the most sunshine of the year.

UV index

February through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 7 in May, converts into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.