San Diego has a mild climate with temperatures in the 50s to 70s all year long. There are a few months considered the “rainy season” and it is typically considered to be the period from November thru March - you can expect between 1″ to 3″ of rain during each of these months. The rest of the year is relatively rain free with blue skies, with the exception of what the locals call “May Gray” and “June Gloom”. During May and June, along the coastal areas, the air temperature has not yet warmed up enough to burn off the morning fog and creates a soupy atmosphere.

San Diego Average High and Low Temperatures by Month:

• January - 66 ºF / 50 ºF
• February - 67 ºF / 52 ºF
• March - 67 ºF / 54 ºF
• April - 69 ºF / 56 ºF
• May - 69 ºF / 60 ºF
• June - 72 ºF / 63 ºF
• July - 76 ºF / 66 ºF
• August - 78 ºF / 67 ºF
• September - 77 ºF / 66 ºF
• October - 74 ºF / 61 ºF
• November - 70 ºF / 54 ºF
• December - 66 ºF / 49 ºF

San Diego Weather Facts at a Glance:

• January is the wettest month.
• The average coolest month is December.
• The average warmest month is August.
• The coldest recorded temperature was 29 ºF.
• The hottest recorded temperature was 111 ºF.