August weather forecast
Julian, CA

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Weather in August

August continues the summer trend in Julian, California, only to record slightly elevated temperatures compared to July. The city experiences the highest temperature recorded throughout the year, which adds a unique attribute. Despite the minimal precipitation, it records a decrease in relative humidity. A decline in cloud cover results in more sunshine hours, ensuring the continuation of the sunny days. The wind speed drops, giving an impression of calm and serene days.

Temperature

August tends to be the warmest month in Julian, with temperatures averaging a daily high of 87.3°F (30.7°C) and a low of 64.9°F (18.3°C).

Heat index

The average heat index in August is calculated to be a tropical 91.4°F (33°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
In terms of the heat index, values are set with light wind and shade conditions in mind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.

Humidity

In August, the average relative humidity in Julian is 52%.

Rainfall

In Julian, in August, during 6 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Julian, during the entire year, the rain falls for 62 days and collects up to 6.38" (162mm) of precipitation.

Snowfall

In Julian, snow does not fall in June through October.

Daylight

The average length of the day in August in Julian is 13h and 20min.
On the first day of August, sunrise is at 6:00 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:12 pm PDT.

Sunshine

The average sunshine in August is 12h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

What are the warmest months in Julian?

The month of August, characterized by an average high of 87.3°F (30.7°C) and a low of 64.9°F (18.3°C), is recognized as the warmest in Julian, California.

How hot is August in Julian?

The average high-temperature, in August, in Julian, is 87.3°F (30.7°C), while the average low-temperature is 64.9°F (18.3°C). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is calculated to be 91.4°F (33°C).

What is the average humidity in August in Julian?

The average relative humidity in August is 52%.

How much does it rain in Julian in August?

In Julian, California, in August, during 6 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

When it does not snow in Julian?

June through October are months without snowfall in Julian.

How many hours of daylight does Julian have in August?

In August, the average day length in Julian, California, is 13h and 20min.

When are sunrise and sunset in August in Julian?

In August, on the first day of the month, sunrise is at 6:00 am and sunset at 7:45 pm. On the last day of the month, in Julian, California, sunrise is at 6:20 am and sunset at 7:12 pm PDT.

How many hours of sunshine does Julian have in August?

In Julian, California, the average sunshine duration in August is 12h.

What is the month with the highest UV index in Julian?

June through September, with an average maximum UV index of 6, are months with the highest UV index in Julian.

What is the UV index reading in August in Julian?

In Julian, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Julian, CA

Average temperature in August - Julian, CA
  • Average high temperature in August: 87.3°F

The warmest month (with the highest average high temperature) is August (87.3°F).
The month with the lowest average high temperature is December (61.3°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is February (44.2°F).

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Average pressure in August
Julian, CA

Average pressure in August - Julian, CA
  • Average pressure in August: 29.87"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in August
Julian, CA

Average wind speed in August - Julian, CA
  • Average wind speed in August: 4.2mph

The windiest month (with the highest average wind speed) is May (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).

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Average humidity in August
Julian, CA

Average humidity in August - Julian, CA
  • Average humidity in August: 52%

The month with the highest relative humidity is May (62%).
The month with the lowest relative humidity is November (51%).

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Average rainfall in August
Julian, CA

Average rainfall in August - Julian, CA
  • Average rainfall in August: 0.63"

The wettest month (with the highest rainfall) is February (0.94").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in August
Julian, CA

Average rainfall days in August - Julian, CA
  • Average rainfall days in August: 6 days

The month with the highest number of rainy days is March (7.6 days).
The month with the least rainy days is June (1.5 days).

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Average snowfall in August
Julian, CA

Average snowfall in August - Julian, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is March (6.7").
The months with the least snowfall are June, July, August, September and October (0").

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Average daylight in August /
Average sunshine in August
Julian, CA

Average daylight in August / Average sunshine in August - Julian, CA
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in August: 12h and 0min

The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

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Average sunshine days in August
Julian, CA

Average sunshine days in August - Julian, CA
  • Average sunshine days in August: 21.5 days

The month with the most sunshine days is June (27.5 days).
The month with the least sunshine days is July (19.4 days).

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Average UV index in August
Julian, CA

Average UV index in August - Julian, CA
  • Average UV index in August: 6

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are November and December (UV index 3).

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Average cloud cover in August
Julian, CA

Average cloud cover in August - Julian, CA
  • Average cloud cover in August: 6

The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in August
Julian, CA

Average visibility in August - Julian, CA
  • Average visibility in August: 6mi

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

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Julian, California, USA

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