Cambrian: Opinion

Summer in Cambria? Expect four days a week of early morning fog

One of Cambria’s main attractions is the temperate weather we enjoy all year round. A study of Cambria’s weather pattern has been put together utilizing the last 14 years of temperature data as recorded at the Waste Water Treatment Plant in Park Hill and reported weekly in The Cambrian.

This data, combined with a subjective evaluation of the type of day that Cambria experiences (sunny, partly sunny, cloudy and rainy), contributes to the following report. A clear day is defined as clear skies from early morning to sunset. A partially clear day means that the fog or clouds clear out during the day followed by sunshine for the remainder of the day (or vice versa).

Since this evaluation is conducted at or near the ocean, where fog and low clouds are more prevalent than all other parts of town, the temperatures and weather information reflect lower temperatures than one might expect to see due to the many microclimates that are within Cambria.

The weather year starts in July and ends in June. (Weather year 2014 began July 1, 2013, and ended June 30, 2014.)


We can expect very little rain, if any, over the summer months. Over the last 15 years Cambria has averaged one rainy day with a token accumulation of one-quarter inch. During the six months of May through October, Cambria receives 1.8 inches of rain, representing 10 percent of our average annual rainfall.

On June 21, the longest day of the year, the sun sets at 8:24 p.m. On that day we experience over 14½ hours of daylight, which represents five more hours of daylight than we experience on Dec. 21, the shortest day of the year. The average high temperature (at the ocean) during our summer months (July, August and September) is 66 degrees.

Over the last 16 years, Cambria has recorded two days where the temperature exceeded 90 degrees. The high temperature was 95 degrees, recorded on June 21, 2008, at Park Hill.

According to the Beaufort scale, a breeze blowing at 13-18 mph is named a “moderate breeze.” The effect at sea results in small waves with white caps beginning to form.

An average week

Weather conditions for an average week during the summer season are: two days per week, clear sunny days; four days per week, early morning fog followed by partial clearing and sun; one day per week, no sun (cloudy and foggy all day).

Related stories from San Luis Obispo Tribune