May weather forecast
Iloilo City, Philippines

In the month of May, weather conditions in Iloilo City take quite the turn as it starts to transition into the wet season. The city bears witness to the most significant jump in rainfall, increasing to a staggering 85mm (3.35") from the previous month's 25mm (0.98"). Along with the intense precipitation, the temperature also rises, reaching up to 31.7°C (89.1°F) in the day, making it the hottest month. Meanwhile, the sea temperature escalates slightly, aiding in the city's humidity levels. With the arrival of heavy rainfall and high temperatures, May initiates the onset of the wet season or 'Habagat' in native language.

Temperature

The warmest month in Iloilo City is May, with an average high-temperature of 31.7°C (89.1°F) and an average low-temperature of 26.6°C (79.9°F).

Heat index

The heat index value during May is calculated to be a scorching 41°C (105.8°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Heat index evaluations are typically in the context of light winds and shaded environments. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. 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 extremely vital to babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

April and May, with an average relative humidity of 73%, are the least humid months in Iloilo City.

Rainfall

In Iloilo City, in May, during 21.3 rainfall days, 85mm (3.35") of precipitation is typically accumulated. Throughout the year, in Iloilo City, Philippines, there are 211.9 rainfall days, and 959mm (37.76") of precipitation is accumulated.

Sea temperature

In Iloilo City, Philippines, in May, the average water temperature is 29.6°C (85.3°F).
Note: Swimming, diving, and other water activities in the temperature range of 25°C (77°F) to 29°C (84.2°F) are perceived as very enjoyable and comfortable for prolonged durations.

Daylight

In Iloilo City, the average length of the day in May is 12h and 37min.
On the first day of the month, sunrise is at 5:31 am and sunset at 6:02 pm. On the last day of May, sunrise is at 5:26 am and sunset at 6:08 pm PST.

Sunshine

In Iloilo City, the average sunshine in May is 11.1h.

UV index

The months with the highest UV index in Iloilo City are January through December, with an average maximum UV index of 7. The months with the lowest UV index in Iloilo City are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In May, the maximum UV index of 7 suggests these recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Stay sun-safe with clothing that is both closely woven and worn loosely. Attention! UV strength is notably upped by the reflection of sand and water.