April weather forecastSan Isidro, Philippines

April

Weather in April

April, the same as March, in San Isidro, Philippines, is a hot spring month, with temperature in the range of an average low of 22.9°C (73.2°F) and an average high of 33.5°C (92.3°F).

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

April's heat index is computed to be a blazing hot 46°C (114.8°F). Precaution: Heat cramps along with heat exhaustion are possible. Heatstroke is a serious risk with continued exertion.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

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. In San Isidro, during the entire year, the rain falls for 252.9 days and collects up to 1795mm (70.67") of precipitation.

Daylight

In San Isidro, the average length of the day in April is 12h and 29min.
On the first day of the month, sunrise is at 5:51 am and sunset at 6:08 pm. On the last day of April, in San Isidro, sunrise is at 5:33 am and sunset at 6:13 pm PST.

Sunshine

With an average of 11.2h of sunshine, April has the most sunshine of the year.

UV index

February through June and August, 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 threat to health from exposure to the Sun's UV rays for average individuals.
Note: The UV index of 7 during April leads to these advisories:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

Frequently asked questions

April tends to be the warmest month, with temperatures averaging a daily high of 33.5°C (92.3°F) and a low of 22.9°C (73.2°F).

The high-temperature, in April, in San Isidro, records 33.5°C (92.3°F), while the low-temperature is 22.9°C (73.2°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in April is computed to be 46°C (114.8°F).

With an average relative humidity of 71%, April is the least humid month.

In April, the average relative humidity is 71%.

In San Isidro, in April, it is raining for 17.9 days, with typically 108mm (4.25") of accumulated precipitation.

The average day length in April 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.

The month with the most sunshine is April, with an average of 11.2h of sunshine.

In San Isidro, the average sunshine duration in April is 11.2h.

February through June and August, with an average maximum UV index of 7, are months with the highest UV index.

In April, the average daily maximum UV index is 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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 30min

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 12min

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).