June weather forecast and climate
San Diego, CA

The view of Coronado Island in San Diego, California, from across a water body on a sidewalk, with a row of palm trees
The view of Coronado Island in San Diego, California, from across a water body on a sidewalk, with a row of palm trees
June is the beginning of the San Diego summer, which brings pleasant temperatures in the 62°F (16.7°C) to 71°F (21.7°C) average range. It is a rare day that touches the 80°F (26.7°C) mark or drops down significantly below 60°F (15.6°C).
Mornings are foggy with the June Gloom effect due to which the sun hides in the misty conditions until the afternoon. San Diego attracts summer crowds due to the mild temperatures in the absence of rain, and the various attractions of the historical city. Expect sunshine for a daily 8 hours during the long daylight hours. Evenings are pleasant with a light breeze in the coastal areas.

What is the temperature in June in San Diego?

In San Diego, California, in June, the average high-temperature is 70.9°F (21.6°C), and the average low-temperature is 62.1°F (16.7°C).

How many days does it rain in June in San Diego?

In San Diego, California, during June, the rain falls for 0.8 days and regularly aggregates up to 0.1" (2mm) of precipitation.
Average temperature in June - San Diego, CA
  • Average high temperature in June: 70.8°F

The warmest month (with the highest average high temperature) is August (76.4°F).
The month with the lowest average high temperature is December (64.7°F).

  • Average low temperature in June: 62°F

The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is December (48.4°F).

Average humidity in June - San Diego, CA
  • Average humidity in June: 74%

The month with the highest relative humidity is July (74.6%).
The month with the lowest relative humidity is January (63.1%).

Average rainfall in June - San Diego, CA
  • Average rainfall in June: 0.1"

The wettest month (with the highest rainfall) is January (2.1").
The driest month (with the lowest rainfall) is July (0").

Average rainfall days in June - San Diego, CA
  • Average rainfall days in June: 0.8 days

The month with the highest number of rainy days is February (7.1 days).
The month with the lowest number of rainy days is August (0.4 days).

Average sea temperature in June - San Diego, CA
  • Average sea temperature in June: 64.7°F

The best month for swimming (with the highest average sea temperature) is August (67.9°F).
The coldest month (with the lowest average sea temperature) is February (58.7°F).

Average daylight in June / Average sunshine in June - San Diego, CA
  • Average daylight in June: 14.3h

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 June: 8.1h

The month with most sunshine is July (Average sunshine: 9.8h).
The month with least sunshine is December (Average sunshine: 7.5h).

Average UV index in June - San Diego, CA
  • Average UV index in June: 10

Months with the highest UV index are June, July and August (UV index 10).
Months with the lowest UV index are January and December (UV index 3).

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