San Clemente
California, USA
Long-term weather forecast
Long-term weather forecast

July weather forecast and climate
San Clemente, CA

July in San Clemente, California, is a moderately hot summer month, with average temperature fluctuating between 75.6°F (24.2°C) and 62.2°F (16.8°C).

Temperature

In July, the average high-temperature is essentially the same as in June - a moderately hot 75.6°F (24.2°C). In July, the average low-temperature is 62.2°F (16.8°C).

Humidity

The average relative humidity in San Clemente is 72%.

Rainfall

In San Clemente, during 4.3 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. In San Clemente, during the entire year, the rain falls for 51.1 days and collects up to 3.66" (93mm) of precipitation.

Ocean temperature

In July, the average ocean temperature is 68°F (20°C).
Note: Swimming in 68°F (20°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

Daylight

The average length of the day in July is 14.1h.

Sunshine

July and August, with an average of 11.8h of sunshine, are months with the most sunshine.

UV index

July through September, with an average maximum UV index of 6, are months with the highest UV index in San Clemente. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in July in San Clemente?

The average high-temperature, in July, is 75.6°F (24.2°C), while the average low-temperature is 62.2°F (16.8°C).

What is the average humidity in July in San Clemente?

In July, the average relative humidity in San Clemente is 72%.

How much does it rain in San Clemente in July?

In July, in San Clemente, California, the rain falls for 4.3 days. Throughout July, 0.24" (6mm) of precipitation is accumulated.

What is the ocean temperature in July in San Clemente?

In San Clemente, California, in July, the average water temperature is 68°F (20°C). For most, swimming in 68°F (20°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the average length of the day in July in San Clemente?

The average length of the day in July is 14.1h.

What is the month with the most sunshine in San Clemente?

Months with the most sunshine in San Clemente, California, are July and August, with an average of 11.8h of sunshine.

How many hours of sunshine does San Clemente have in July?

In July, the average sunshine is 11.8h.

When is the highest UV index in San Clemente?

Months with the highest UV index are July through September, with an average maximum UV index of 6.

What is the UV index reading in July in San Clemente?

In July, the average daily maximum UV index in San Clemente is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in July - San Clemente, CA
  • Average high temperature in July: 75.6°F

The warmest month (with the highest average high temperature) is September (77.4°F).
The month with the lowest average high temperature is December (62.6°F).

  • Average low temperature in July: 62.2°F

Months with the highest average low temperature are August and September (63.5°F).
The coldest month (with the lowest average low temperature) is February (49.6°F).

Average humidity in July - San Clemente, CA
  • Average humidity in July: 72%

The month with the highest relative humidity is June (75%).
The month with the lowest relative humidity is November (60%).

Average rainfall in July - San Clemente, CA
  • Average rainfall in July: 0.24"

The wettest month (with the highest rainfall) is December (0.71").
The driest month (with the lowest rainfall) is June (0.08").

Average rainfall days in July - San Clemente, CA
  • Average rainfall days in July: 4.3 days

The month with the highest number of rainy days is March (7.3 days).
The month with the lowest number of rainy days is June (1.4 days).

Average sea temperature in July - San Clemente, CA
  • Average sea temperature in July: 68°F

The best month for swimming (with the highest average sea temperature) is August (68.3°F).
Coldest months (with the lowest average sea temperature) are January and February (58.9°F).

Average daylight in July / Average sunshine in July - San Clemente, CA
  • Average daylight in July: 14.1h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10h).

  • Average sunshine in July: 11.8h

Months with most sunshine are July and August (Average sunshine: 11.8h).
The month with least sunshine is December (Average sunshine: 6.5h).

Average UV index in July - San Clemente, CA
  • Average UV index in July: 6

Months with the highest UV index are July, August and September (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 4).