Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
In May, Siay's weather conditions record an average high-temperature of a still warm 29.6°C (85.3°F), demonstrating little divergence from the preceding month. Siay in May anticipates an average nighttime temperature of 24.2°C (75.6°F).Heat index
The heat index in May is evaluated at a sweltering 38°C (100.4°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.Heat index determinations are made taking into account the shade and light air movements. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In Siay, the average relative humidity in May is 84%.Rainfall
In May, the rain falls for 26.6 days. Throughout May, 134mm (5.28") of precipitation is accumulated. In Siay, during the entire year, the rain falls for 265.6 days and collects up to 1186mm (46.69") of precipitation.Daylight
In May, the average length of the day is 12h and 29min.On the first day of May, sunrise is at 5:33 am and sunset at 5:57 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 6:02 pm PST.
Sunshine
The average sunshine in May is 8.7h.UV index
January through September, November and 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 vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 7 suggests these recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is May?
What is the average humidity in May in Siay?
How many days does it rain in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Siay have in May?
When is the highest UV index?
How high is the UV index in May?
Average temperature in May
Siay, Philippines
- Average high temperature in May: 29.6°C
The warmest month (with the highest average high temperature) is April (29.7°C).
The month with the lowest average high temperature is January (28.1°C).
- Average low temperature in May: 24.2°C
The months with the highest average low temperature are May, October and November (24.2°C).
The coldest month (with the lowest average low temperature) is February (23°C).
Average pressure in May
Siay, Philippines
- Average pressure in May: 1009.4mbar
The month with the highest atmospheric pressure is February (1010.6mbar).
The months with the lowest atmospheric pressure are November and December (1009mbar).
Average wind speed in May
Siay, Philippines
- Average wind speed in May: 6.1km/h
The windiest month (with the highest average wind speed) is February (13km/h).
The calmest month (with the lowest average wind speed) is May (6.1km/h).
Average humidity in May
Siay, Philippines
- Average humidity in May: 84%
The months with the highest relative humidity are January and November (85%).
The month with the lowest relative humidity is March (81%).
Average rainfall in May
Siay, Philippines
- Average rainfall in May: 134mm
The wettest month (with the highest rainfall) is June (142mm).
The driest month (with the least rainfall) is February (50mm).
Average rainfall days in May
Siay, Philippines
- Average rainfall days in May: 26.6 days
The month with the highest number of rainy days is May (26.6 days).
The month with the least rainy days is February (15 days).
Average daylight in May /
Average sunshine in May
Siay, Philippines
- Average daylight in May: 12h and 3min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in May
Siay, Philippines
- Average sunshine days in May: 3.7 days
The month with the most sunshine days is February (11.1 days).
The month with the least sunshine days is May (3.7 days).
Average UV index in May
Siay, Philippines
- Average UV index in May: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 7).
The month with the lowest UV index is October (UV index 6).
Average cloud cover in May
Siay, Philippines
- Average cloud cover in May: 43
The months with the most cloud cover are June and July (Cloud cover 51).
The month with the least cloud cover is March (Cloud cover 35).
Average visibility in May
Siay, Philippines
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
