August is warmest month of the year and ocean temps peak

San Diego’s Warmest Weather, on average, should be occurring right now, according to statistics compiled from several decades of measurements taken near the San Diego International Airport. In an average year, coastal residents enjoy an average daily temperature of 70°, which compares favorably (depending on your viewpoint) with the January average daily temperature of 55°. The range between the high and low is typically 10° or less this time of year. August’s warm, semitropical weather should soon give way to September’s and October’s slightly cooler days interspersed with occasional heat waves brought on by Santa Ana conditions — dry, hot winds that sweep down the mountain slopes from the interior.

Ocean Water Temperatures are probably peaking now, the result of many weeks of summer sunshine and warm coastal air temperatures. While the water offshore seldom reaches 70 degrees Fahrenheit, shallow-water temperatures of 70–75 degrees are not uncommon on gently shelving beaches late in the day. Wide, sandy beaches such as Coronado, south Mission Beach, and La Jolla Shores are now at their best for comfortable bathing.

Perseid Meteor Shower, August 12, 2013

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Check out the great Perseid Meteor on August 11, 12 & 13. There will be excellent dark sky viewing conditions, since the shower’s peak is close to the new Moon. The Perseids should deliver a meteor a minute in dark, moonless, cloudless skies, and will be best seen after midnight.