July weather forecast
Lake San Marcos, CA

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Weather in July

July, the same as June, is another warm summer month in Lake San Marcos, California, with an average temperature fluctuating between 80.2°F (26.8°C) and 62.6°F (17°C).

Temperature

The arrival of July marks a slight shift to an average high-temperature of a still moderately hot 80.2°F (26.8°C) from June's 75.2°F (24°C). The nights of July in Lake San Marcos anticipate an average low-temperature of 62.6°F (17°C).

Humidity

In Lake San Marcos, the average relative humidity in July is 66%.

Rainfall

In Lake San Marcos, in July, during 2.5 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. Throughout the year, there are 52.1 rainfall days, and 6.1" (155mm) of precipitation is accumulated.

Daylight

In July, the average length of the day is 14h and 5min.
On the first day of the month, sunrise is at 5:43 am and sunset at 8:01 pm. On the last day of July, sunrise is at 6:01 am and sunset at 7:48 pm PDT.

Sunshine

The month with the most sunshine in Lake San Marcos is July, with an average of 12.1h of sunshine.

UV index

The months with the highest UV index are June through September, with an average maximum UV index of 6. 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: A daily high UV index of 6 in July leads to these guidelines:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Lake San Marcos in July?

In July, in Lake San Marcos, the average high-temperature is 80.2°F (26.8°C), and the average low-temperature is 62.6°F (17°C).

What is the average humidity in July in Lake San Marcos?

In July, the average relative humidity in Lake San Marcos, California, is 66%.

How many days does it rain in July in Lake San Marcos?

In July, in Lake San Marcos, California, the rain falls for 2.5 days. Throughout July, 0.12" (3mm) of precipitation is accumulated.

What is the average length of the day in July in Lake San Marcos?

In Lake San Marcos, California, the average day length in July is 14h and 5min.

What time are sunrise and sunset in July in Lake San Marcos?

On the first day of July in Lake San Marcos, California, sunrise is at 5:43 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 7:48 pm PDT.

What month has the most sunshine in Lake San Marcos?

July has the most sunshine of the year in Lake San Marcos, with an average of 12.1h of sunshine.

How long on average sun shines in July in Lake San Marcos?

The average sunshine duration in July in Lake San Marcos, California, is 12.1h.

When is the highest UV index in Lake San Marcos?

June through September, with an average maximum UV index of 6, are months with the highest UV index in Lake San Marcos, California.

What is the UV index reading in July in Lake San Marcos?

The average daily maximum UV index in July in Lake San Marcos is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Lake San Marcos, CA

Average temperature in July - Lake San Marcos, CA
  • Average high temperature in July: 80.2°F

The warmest month (with the highest average high temperature) is August (81.9°F).
The months with the lowest average high temperature are February and December (63.3°F).

  • Average low temperature in July: 62.6°F

The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is February (48°F).

Average pressure in July
Lake San Marcos, CA

Average pressure in July - Lake San Marcos, CA
  • Average pressure in July: 29.9"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in July
Lake San Marcos, CA

Average wind speed in July - Lake San Marcos, CA
  • Average wind speed in July: 4.8mph

The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is October (4.4mph).

Average humidity in July
Lake San Marcos, CA

Average humidity in July - Lake San Marcos, CA
  • Average humidity in July: 66%

The month with the highest relative humidity is May (70%).
The month with the lowest relative humidity is November (56%).

Average rainfall in July
Lake San Marcos, CA

Average rainfall in July - Lake San Marcos, CA
  • Average rainfall in July: 0.12"

The wettest month (with the highest rainfall) is December (1.22").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in July
Lake San Marcos, CA

Average rainfall days in July - Lake San Marcos, CA
  • Average rainfall days in July: 2.5 days

The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is June (1.2 days).

Average daylight in July /
Average sunshine in July
Lake San Marcos, CA

Average daylight in July / Average sunshine in July - Lake San Marcos, CA
  • Average daylight in July: 14h and 1min

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 July: 12h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in July
Lake San Marcos, CA

Average sunshine days in July - Lake San Marcos, CA
  • Average sunshine days in July: 24.5 days

The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is February (20 days).

Average UV index in July
Lake San Marcos, CA

Average UV index in July - Lake San Marcos, CA
  • Average UV index in July: 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 January, February, March, November and December (UV index 4).

Average cloud cover in July
Lake San Marcos, CA

Average cloud cover in July - Lake San Marcos, CA
  • Average cloud cover in July: 9

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 7).

Average visibility in July
Lake San Marcos, CA

Average visibility in July - Lake San Marcos, CA
  • Average visibility in July: 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).

Lake San Marcos, California, USA

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