May weather forecastSienna, Philippines
May
Weather in May
The last month of the spring, May, is another hot month in Sienna, Philippines, with an average temperature varying between 26.4°C (79.5°F) and 33.4°C (92.1°F).Temperature
Temperature records mark May as the warmest month, with highs averaging 33.4°C (92.1°F) and lows at 26.4°C (79.5°F).Heat index
May's heat index is appraised at a life-threatening hot 46°C (114.8°F). Be on the lookout: Heat cramps and heat exhaustion are anticipated. Continued exertion can result in heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. 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 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
The average relative humidity in May is 72%.Rainfall
In Sienna, in May, it is raining for 19.9 days, with typically 75mm (2.95") of accumulated precipitation. In Sienna, Philippines, during the entire year, the rain falls for 185 days and collects up to 830mm (32.68") of precipitation.Daylight
The average length of the day in May is 12h and 49min.On the first day of May, sunrise is at 5:33 am and sunset at 6:13 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 6:21 pm PST.
Sunshine
In Sienna, Philippines, the average sunshine in May is 11.1h.UV index
February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 7 in May translates into these instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sienna, Philippines
- Average high temperature in May: 33.4°C
The warmest month (with the highest average high temperature) is May (33.4°C).
The month with the lowest average high temperature is January (28.3°C).
- Average low temperature in May: 26.4°C
The month with the highest average low temperature is May (26.4°C).
The coldest month (with the lowest average low temperature) is January (22.9°C).
Average pressure in May
Sienna, Philippines
- Average pressure in May: 1009.5mbar
The month with the highest atmospheric pressure is February (1013.4mbar).
The month with the lowest atmospheric pressure is August (1007.6mbar).
Average wind speed in May
Sienna, Philippines
- Average wind speed in May: 7.5km/h
The windiest month (with the highest average wind speed) is January (11.4km/h).
The calmest month (with the lowest average wind speed) is May (7.5km/h).
Average humidity in May
Sienna, Philippines
- Average humidity in May: 72%
The months with the highest relative humidity are August and September (81%).
The month with the lowest relative humidity is April (70%).
Average rainfall in May
Sienna, Philippines
- Average rainfall in May: 75mm
The wettest month (with the highest rainfall) is July (163mm).
The driest month (with the least rainfall) is February (11mm).
Average rainfall days in May
Sienna, Philippines
- Average rainfall days in May: 19.9 days
The month with the highest number of rainy days is July (23.4 days).
The month with the least rainy days is February (7 days).
Average daylight in May /
Average sunshine in May
Sienna, Philippines
- Average daylight in May: 12h and 48min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in May: 11h and 6min
The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in May
Sienna, Philippines
- Average sunshine days in May: 10 days
The month with the most sunshine days is March (16.9 days).
The month with the least sunshine days is July (7 days).
Average UV index in May
Sienna, Philippines
- Average UV index in May: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in May
Sienna, Philippines
- Average cloud cover in May: 30
The month with the most cloud cover is August (Cloud cover 51).
The month with the least cloud cover is April (Cloud cover 25).
Average visibility in May
Sienna, Philippines
- Average visibility in May: 10km
The months with the highest visibility are February, March, April, May, June and December (10km).
The months with the lowest visibility are January, July, August, September, October and November (9km).





