June weather forecast
San Clemente, CA

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Weather in June

June, the first month of the summer in San Clemente, is an agreeable month, with temperature in the range of an average low of 57.7°F (14.3°C) and an average high of 71.2°F (21.8°C).

Temperature

The arrival of June coincides with an average high-temperature of an agreeable 71.2°F (21.8°C), indicating a minimal shift from May's 67.6°F (19.8°C). San Clemente reports a consistent average low-temperature of 57.7°F (14.3°C) throughout June nights.

Humidity

The most humid month is June, with an average relative humidity of 75%.

Rainfall

June is the month with the least rainfall. Rain falls for 1.4 days and accumulates 0.08" (2mm) of precipitation.

Ocean temperature

In San Clemente, the average seawater temperature in June is 65.7°F (18.7°C).
Note: The enjoyment of swimming decreases for most when the surface water temperature is 65.7°F (18.7°C). Breathing control becomes increasingly challenging as temperatures descend below 69.8°F (21°C).

Daylight

June has the longest days of the year in San Clemente, with an average of 14h and 18min of daylight.
On the first day of June, sunrise is at 5:41 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:04 pm PDT.

Sunshine

The average sunshine in June is 11.6h.

UV index

The average daily maximum UV index in June is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 5 during June translates into the following directions:
Prioritize safety - Recommendations to avert sunburn are shared. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in June?

San Clemente in June has an average high-temperature of 71.2°F (21.8°C) and an average low-temperature of 57.7°F (14.3°C).

What is the most humid month?

June is the most humid month, with an average relative humidity of 75%.

What is the average humidity in June?

In June, the average relative humidity is 75%.

What is the driest month?

The month with the least rainfall is June, when the rain falls for 1.4 days and typically collects 0.08" (2mm) of precipitation.

How many days does it rain in June?

In June, the rain falls for 1.4 days. Throughout June, 0.08" (2mm) of precipitation is accumulated.

What is the ocean temperature in June in San Clemente?

In June, the average ocean temperature is 65.7°F (18.7°C). For most, swimming in 65.7°F (18.7°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).

When are the longest days?

June has the longest days of the year, with an average of 14h and 18min of daylight.

How many hours of daylight does San Clemente have in June?

In June, the average day length is 14h and 20min.

What time are sunrise and sunset in June?

In June, on the first day of the month, sunrise is at 5:41 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:04 pm PDT.

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

The average sunshine duration in June is 11.6h.

What is the UV index reading in June?

The average daily maximum UV index in June is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to the Sun's 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 June
San Clemente, CA

Average temperature in June - San Clemente, CA
  • Average high temperature in June: 71.2°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 June: 57.7°F

The 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 pressure in June
San Clemente, CA

Average pressure in June - San Clemente, CA
  • Average pressure in June: 29.88"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in June
San Clemente, CA

Average wind speed in June - San Clemente, CA
  • Average wind speed in June: 5.2mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are August and September (4.9mph).

Average humidity in June
San Clemente, CA

Average humidity in June - San Clemente, CA
  • Average humidity in June: 75%

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

Average rainfall in June
San Clemente, CA

Average rainfall in June - San Clemente, CA
  • Average rainfall in June: 0.08"

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

Average rainfall days in June
San Clemente, CA

Average rainfall days in June - San Clemente, CA
  • Average rainfall days in June: 1.4 days

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

Average sea temperature in June
San Clemente, CA

Average sea temperature in June - San Clemente, CA
  • Average sea temperature in June: 65.6°F

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

Average daylight in June /
Average sunshine in June
San Clemente, CA

Average daylight in June / Average sunshine in June - San Clemente, CA
  • Average daylight in June: 14h 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 June: 11h and 4min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in June
San Clemente, CA

Average sunshine days in June - San Clemente, CA
  • Average sunshine days in June: 25.4 days

The month with the most sunshine days is October (26 days).
The month with the least sunshine days is February (21.6 days).

Average UV index in June
San Clemente, CA

Average UV index in June - San Clemente, CA
  • Average UV index in June: 5

The months with the highest UV index are 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 June
San Clemente, CA

Average cloud cover in June - San Clemente, CA
  • Average cloud cover in June: 19

The months with the most cloud cover are March and May (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 11).

Average visibility in June
San Clemente, CA

Average visibility in June - San Clemente, CA
  • Average visibility in June: 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).

San Clemente, California, USA

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