May weather forecast
Casian, Philippines

May, the last month of the spring in Casian, is a tropical month, with an average temperature ranging between max 30.6°C (87.1°F) and min 27.8°C (82°F).

Temperature

May is the warmest month, exhibiting average temperatures of 30.6°C (87.1°F) at the peak and 27.8°C (82°F) at the base.

Heat index

For most parts of May, the heat index is estimated at a torrid 38°C (100.4°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

May is the least humid month in Casian, with an average relative humidity of 75%.

Rainfall

In Casian, in May, during 23.5 rainfall days, 119mm (4.69") of precipitation is typically accumulated. Throughout the year, there are 259.3 rainfall days, and 1372mm (54.02") of precipitation is accumulated.

Sea temperature

May and June, with an average sea temperature of 29.9°C (85.8°F), are months with the warmest seawater in Casian.
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

In May, the average length of the day in Casian is 12h and 38min.
On the first day of May, sunrise is at 5:42 am and sunset at 6:13 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 6:20 pm PST.

Sunshine

The average sunshine in May is 10.8h.

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 reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index, 7 in May, converts into the following recommendations:
Fend off overexposure. Sun protection is vital. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Attention! The reflection of both water and sand can increase the intensity of UV rays.