August weather forecast
Old Hopland, CA

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Weather in August

The last month of the summer, August, is another warm month in Old Hopland, California, with an average temperature ranging between max 84.7°F (29.3°C) and min 53.4°F (11.9°C).

Temperature

August's onset sees an average high-temperature of a still warm 84.7°F (29.3°C), exhibiting a slight fluctuation from the previous month. Old Hopland experiences a consistent, yet significant, drop from daily highs to a low-temperature of 53.4°F (11.9°C) throughout August.

Heat index

Throughout August, the heat index is evaluated at a hot 87.8°F (31°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
Note that heat index values are valued for light wind and location in the shade. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

In August, the average relative humidity is 59%.

Rainfall

July and August are months with the least rain when the rain falls for 1.3 days and typically aggregates up to 0.08" (2mm) of rain.

Snowfall

In Old Hopland, snow does not fall in January, March through December.

Daylight

In Old Hopland, California, the average length of the day in August is 13h and 38min.
On the first day of August in Old Hopland, sunrise is at 6:14 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 7:43 pm PDT.

Sunshine

The average sunshine in August in Old Hopland is 11.9h.

UV index

The average daily maximum UV index in August in Old Hopland is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: A daily high UV index of 5 in August leads to these guidelines:
Guard yourself - Avoiding sunburn is suggested. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Old Hopland in August?

During August, Old Hopland experiences an average high-temperature of 84.7°F (29.3°C) and a low-temperature of 53.4°F (11.9°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is evaluated at 87.8°F (31°C).

What is the average humidity in August in Old Hopland?

In August, the average relative humidity in Old Hopland is 59%.

What is the driest month in Old Hopland?

July and August are months with the least rain when the rain falls for 1.3 days and typically aggregates up to 0.08" (2mm) of rain.

How many days does it rain in August in Old Hopland?

In August, in Old Hopland, California, the rain falls for 1.3 days. Throughout August, 0.08" (2mm) of precipitation is accumulated.

When it does not snow in Old Hopland?

January, March through December are months without snowfall in Old Hopland.

How many hours of daylight does Old Hopland have in August?

In Old Hopland, the average day length in August is 13h and 38min.

When are sunrise and sunset in August in Old Hopland?

In August, on the first day of the month, sunrise is at 6:14 am and sunset at 8:23 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 7:43 pm PDT.

How long on average sun shines in August in Old Hopland?

In Old Hopland, California, the average sunshine duration in August is 11.9h.

How high is the UV index in August in Old Hopland?

In August, the average daily maximum UV index in Old Hopland, California, is 5. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Old Hopland, CA

Average temperature in August - Old Hopland, CA
  • Average high temperature in August: 84.7°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).

  • Average low temperature in August: 53.4°F

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).

Average pressure in August
Old Hopland, CA

Average pressure in August - Old Hopland, CA
  • Average pressure in August: 29.92"Hg

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

Average wind speed in August
Old Hopland, CA

Average wind speed in August - Old Hopland, CA
  • Average wind speed in August: 4.3mph

The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).

Average humidity in August
Old Hopland, CA

Average humidity in August - Old Hopland, CA
  • Average humidity in August: 59%

The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and September (58%).

Average rainfall in August
Old Hopland, CA

Average rainfall in August - Old Hopland, CA
  • Average rainfall in August: 0.08"

The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").

Average rainfall days in August
Old Hopland, CA

Average rainfall days in August - Old Hopland, CA
  • Average rainfall days in August: 1.3 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).

Average snowfall in August
Old Hopland, CA

Average snowfall in August - Old Hopland, CA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in August
Old Hopland, CA

Average snowfall days in August - Old Hopland, CA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in August /
Average sunshine in August
Old Hopland, CA

Average daylight in August / Average sunshine in August - Old Hopland, CA
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 11h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in August
Old Hopland, CA

Average sunshine days in August - Old Hopland, CA
  • Average sunshine days in August: 28.1 days

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).

Average UV index in August
Old Hopland, CA

Average UV index in August - Old Hopland, CA
  • Average UV index in August: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February and November (UV index 2).

Average cloud cover in August
Old Hopland, CA

Average cloud cover in August - Old Hopland, CA
  • Average cloud cover in August: 6

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).

Average visibility in August
Old Hopland, CA

Average visibility in August - Old Hopland, CA
  • Average visibility in August: 6mi

The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).

Old Hopland, California, USA

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