Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
San Isidro's April weather, marked by an average high temperature of 33.5°C (92.3°F) and an average low temperature of 22.9°C (73.2°F), is the warmest in the year.Heat index
The heat index value for April is computed to be a burning hot 46°C (114.8°F). Alert: Heat cramps and heat exhaustion are likely to occur. Prolonged exertion can lead to heatstroke.Heat index determinations are made taking into account the shade and light air movements. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
With an average relative humidity of 71%, April is the least humid month.Rainfall
In San Isidro, in April, during 17.9 rainfall days, 108mm (4.25") of precipitation is typically accumulated. Throughout the year, there are 252.9 rainfall days, and 1795mm (70.67") of precipitation is accumulated.Daylight
In April, the average length of the day in San Isidro is 12h and 29min.On the first day of April, sunrise is at 5:51 am and sunset at 6:08 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 6:13 pm PST.
Sunshine
The month with the most sunshine is April, with an average of 11.2h of sunshine.UV index
February through June and August, with an average maximum UV index of 7, are months with the highest UV index in San Isidro, Philippines. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: In April, the maximum UV index of 7 suggests this advice:
Guard against overexposure. Protection from sun-induced harm is essential. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
What are the warmest months in San Isidro?
How hot is it in San Isidro in April?
What is the least humid month in San Isidro?
What is the average humidity in April in San Isidro?
How much does it rain in San Isidro in April?
How many hours of daylight does San Isidro have in April?
What time are sunrise and sunset in April in San Isidro?
What month has the most sunshine in San Isidro?
How many hours of sunshine does San Isidro have in April?
When is the highest UV index in San Isidro?
What is the UV index reading in April in San Isidro?
Average temperature in April
San Isidro, Philippines
- Average high temperature in April: 33.5°C
The warmest month (with the highest average high temperature) is April (33.5°C).
The month with the lowest average high temperature is January (28.8°C).
- Average low temperature in April: 22.9°C
The month with the highest average low temperature is May (24.8°C).
The coldest month (with the lowest average low temperature) is January (20.6°C).
Average pressure in April
San Isidro, Philippines
- Average pressure in April: 1011.2mbar
The month with the highest atmospheric pressure is February (1013.5mbar).
The month with the lowest atmospheric pressure is August (1007.6mbar).
Average wind speed in April
San Isidro, Philippines
- Average wind speed in April: 6.2km/h
The windiest months (with the highest average wind speed) are January and December (7.7km/h).
The calmest month (with the lowest average wind speed) is May (5.4km/h).
Average humidity in April
San Isidro, Philippines
- Average humidity in April: 71%
The months with the highest relative humidity are August and September (86%).
The month with the lowest relative humidity is April (71%).
Average rainfall in April
San Isidro, Philippines
- Average rainfall in April: 108mm
The wettest month (with the highest rainfall) is July (306mm).
The driest month (with the least rainfall) is February (23mm).
Average rainfall days in April
San Isidro, Philippines
- Average rainfall days in April: 17.9 days
The month with the highest number of rainy days is July (30.3 days).
The month with the least rainy days is February (9.7 days).
Average daylight in April /
Average sunshine in April
San Isidro, Philippines
- Average daylight in April: 12h and 3min
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 12min).
- Average sunshine in April: 11h and 1min
The month with the most sunshine is April (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in April
San Isidro, Philippines
- Average sunshine days in April: 11 days
The month with the most sunshine days is March (17.3 days).
The month with the least sunshine days is July (0.5 days).
Average UV index in April
San Isidro, Philippines
- Average UV index in April: 7
The months with the highest UV index are February, March, April, May, June and August (UV index 7).
The months with the lowest UV index are January, July, September, October, November and December (UV index 6).
Average cloud cover in April
San Isidro, Philippines
- Average cloud cover in April: 32
The month with the most cloud cover is August (Cloud cover 57).
The month with the least cloud cover is March (Cloud cover 31).
Average visibility in April
San Isidro, Philippines
- Average visibility in April: 9km
The months with the highest visibility are January, February, March, April, May and June (9km).
The months with the lowest visibility are July, August, September, October, November and December (8km).
San Isidro, Philippines
Weather forecast for your location
2. Allow the app to use your location
