August weather forecast and climate
San Juan Bautista, CA

Weather in August

The last month of the summer, August, is another warm month in San Juan Bautista, California, with average temperature fluctuating between 84.7°F (29.3°C) and 54.3°F (12.4°C).

Temperature

The warmest months are July and August, with an average high-temperature of 84.7°F (29.3°C).

Heat index

The average heat index in August is estimated at a hot 89.1°F (31.7°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional factors like metabolic differences, differences in body mass, height, and shape, wind, and activity influence one's weather impression. 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 particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in San Juan Bautista is 61%.

Rainfall

Months with the least rainfall are June through September Rain falls for 0.5 days and accumulates 0.04" (1mm) of rain.

Daylight

The average length of the day in San Juan Bautista is 13.5h.

Sunshine

July and August, with an average of 12h of sunshine, are months with the most sunshine.

UV index

Months with the highest UV index in San Juan Bautista are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: In August, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the warmest month in San Juan Bautista?

July and August, with an average high-temperature of 84.7°F (29.3°C), are warmest months in San Juan Bautista, California.

What is the temperature in August in San Juan Bautista?

The average high-temperature, in August, in San Juan Bautista, California, is 84.7°F (29.3°C), while the average low-temperature is 54.3°F (12.4°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is estimated at 89.1°F (31.7°C).

What is the average humidity in August in San Juan Bautista?

In August, the average relative humidity in San Juan Bautista, California, is 61%.

What is the driest month in San Juan Bautista?

Months with the least rainfall are June through September Rain falls for 0.5 days and accumulates 0.04" (1mm) of rain.

How much does it rain in San Juan Bautista in August?

In San Juan Bautista, California, in August, it is raining for 0.5 days, with typically 0.04" (1mm) of accumulated precipitation.

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

The average length of the day in August in San Juan Bautista, California, is 13.5h.

What is the month with the most sunshine in San Juan Bautista?

Months with the most sunshine are July and August, with an average of 12h of sunshine.

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

In San Juan Bautista, the average sunshine in August is 12h.

When is the highest UV index in San Juan Bautista?

Months with the highest UV index are June through August, with an average maximum UV index of 6.

How high is the UV index in August in San Juan Bautista?

In August, the average daily maximum UV index in San Juan Bautista is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.

Average temperature in August
San Juan Bautista, CA

Average temperature in August - San Juan Bautista, CA
  • Average high temperature in August: 84.7°F

The warmest months (with the highest average high temperature) are July and August (84.7°F).
The month with the lowest average high temperature is December (57.6°F).

  • Average low temperature in August: 54.3°F

The month with the highest average low temperature is August (54.3°F).
The coldest months (with the lowest average low temperature) are February, March and December (40.6°F).

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Average pressure in August
San Juan Bautista, CA

Average pressure in August - San Juan Bautista, CA
  • Average pressure in August: 29.92"

The month with the highest atmospheric pressure is January (30.13").
Months with the lowest atmospheric pressure are June, August and September (29.92").

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Average wind speed in August
San Juan Bautista, CA

Average wind speed in August - San Juan Bautista, CA
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is May (5.3mph).
The calmest month (with the lowest average wind speed) is November (3.9mph).

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Average humidity in August
San Juan Bautista, CA

Average humidity in August - San Juan Bautista, CA
  • Average humidity in August: 61%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is September (58%).

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Average rainfall in August
San Juan Bautista, CA

Average rainfall in August - San Juan Bautista, CA
  • Average rainfall in August: 0.04"

The wettest month (with the highest rainfall) is December (1.02").
The driest months (with the least rainfall) are June, July, August and September (0.04").

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Average rainfall days in August
San Juan Bautista, CA

Average rainfall days in August - San Juan Bautista, CA
  • Average rainfall days in August: 0.5 days

The month with the highest number of rainy days is March (9 days).
The month with the least rainy days is August (0.5 days).

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Average daylight in August /
Average sunshine in August
San Juan Bautista, CA

Average daylight in August / Average sunshine in August - San Juan Bautista, CA
  • Average daylight in August: 13.5h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in August: 12h

Months with the most sunshine are July and August (Average sunshine: 12h).
The month with the least sunshine is December (Average sunshine: 6h).

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Average sunshine days in August
San Juan Bautista, CA

Average sunshine days in August - San Juan Bautista, CA
  • Average sunshine days in August: 29.6 days

The month with the most sunshine days is August (29.6 days).
The month with the least sunshine days is February (20.6 days).

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Average UV index in August
San Juan Bautista, CA

Average UV index in August - San Juan Bautista, CA
  • Average UV index in August: 6

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in August
San Juan Bautista, CA

Average cloud cover in August - San Juan Bautista, CA
  • Average cloud cover in August: 9

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in August
San Juan Bautista, CA

Average visibility in August - San Juan Bautista, CA
  • Average visibility in August: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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