August weather forecast
San Juan, Philippines

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Weather in August

The last month of the summer, August, is another warm month in San Juan, Philippines, with an average temperature varying between 24.7°C (76.5°F) and 29.9°C (85.8°F).

Temperature

August is marked by an average high-temperature of a still warm 29.9°C (85.8°F), maintaining the same climate as July. In August, the average low-temperature is a still warm 24.7°C (76.5°F).

Heat index

During August, the heat index is calculated to be a fiery hot 38°C (100.4°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. 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.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

In August, the average relative humidity is 82%.

Rainfall

August is the month with the most rainfall in San Juan. Rain falls for 15.8 days and accumulates 93mm (3.66") of precipitation.

Daylight

The average length of the day in August in San Juan is 12h and 36min.
On the first day of August, sunrise is at 5:39 am and sunset at 6:25 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 6:08 pm PST.

Sunshine

In San Juan, the average sunshine in August is 8.5h.

UV index

February through November, 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 hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 7 during August leads to these instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

How hot is August in San Juan?

An average high-temperature, in August, in San Juan, is 29.9°C (85.8°F) and the average low-temperature is 24.7°C (76.5°F). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 38°C (100.4°F).

What is the average humidity in August in San Juan?

The average relative humidity in August in San Juan is 82%.

What is the wettest month in San Juan?

The month with the most rainfall in San Juan is August, when the rain falls for 15.8 days and typically aggregates up to 93mm (3.66") of precipitation.

How much does it rain in San Juan in August?

In San Juan, Philippines, in August, it is raining for 15.8 days, with typically 93mm (3.66") of accumulated precipitation.

What is the average length of the day in August in San Juan?

In August, the average day length in San Juan is 12h and 36min.

When are sunrise and sunset in August in San Juan?

On the first day of August, sunrise is at 5:39 am and sunset at 6:25 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 6:08 pm PST.

How long on average sun shines in August in San Juan?

In San Juan, the average sunshine duration in August is 8.5h.

When is the highest UV index in San Juan?

February through November, with an average maximum UV index of 7, are months with the highest UV index in San Juan, Philippines.

What is the UV index intensity in August in San Juan?

In San Juan, Philippines, the average daily maximum UV index in August is 7. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.

Average temperature in August
San Juan, Philippines

Average temperature in August - San Juan, Philippines
  • Average high temperature in August: 29.9°C

The warmest month (with the highest average high temperature) is May (32°C).
The month with the lowest average high temperature is January (26.6°C).

  • Average low temperature in August: 24.7°C

The month with the highest average low temperature is May (25.3°C).
The coldest month (with the lowest average low temperature) is February (22.7°C).

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Average pressure in August
San Juan, Philippines

Average pressure in August - San Juan, Philippines
  • Average pressure in August: 1007.6mbar

The month with the highest atmospheric pressure is February (1013.4mbar).
The month with the lowest atmospheric pressure is August (1007.6mbar).

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Average wind speed in August
San Juan, Philippines

Average wind speed in August - San Juan, Philippines
  • Average wind speed in August: 11km/h

The windiest month (with the highest average wind speed) is January (14.2km/h).
The calmest month (with the lowest average wind speed) is May (7.5km/h).

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Average humidity in August
San Juan, Philippines

Average humidity in August - San Juan, Philippines
  • Average humidity in August: 82%

The months with the highest relative humidity are July and September (83%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in August
San Juan, Philippines

Average rainfall in August - San Juan, Philippines
  • Average rainfall in August: 93mm

The wettest month (with the highest rainfall) is August (93mm).
The driest month (with the least rainfall) is February (15mm).

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Average rainfall days in August
San Juan, Philippines

Average rainfall days in August - San Juan, Philippines
  • Average rainfall days in August: 15.8 days

The month with the highest number of rainy days is October (18.6 days).
The month with the least rainy days is February (12.5 days).

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Average daylight in August /
Average sunshine in August
San Juan, Philippines

Average daylight in August / Average sunshine in August - San Juan, Philippines
  • Average daylight in August: 12h and 4min

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 August: 8h and 3min

The month with the most sunshine is April (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

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Average sunshine days in August
San Juan, Philippines

Average sunshine days in August - San Juan, Philippines
  • Average sunshine days in August: 14.3 days

The month with the most sunshine days is August (14.3 days).
The month with the least sunshine days is January (4.3 days).

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Average UV index in August
San Juan, Philippines

Average UV index in August - San Juan, Philippines
  • Average UV index in August: 7

The months with the highest UV index are February, March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January and December (UV index 6).

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Average cloud cover in August
San Juan, Philippines

Average cloud cover in August - San Juan, Philippines
  • Average cloud cover in August: 52

The month with the most cloud cover is August (Cloud cover 52).
The month with the least cloud cover is April (Cloud cover 27).

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Average visibility in August
San Juan, Philippines

Average visibility in August - San Juan, Philippines
  • Average visibility in August: 9km

The months with the highest visibility are February, March, April and December (10km).
The months with the lowest visibility are January, May, June, July, August, September, October and November (9km).

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San Juan, Philippines

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