San Marino, CA Weather


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The most pleasant months of the year for San Marino are May, April and October. In San Marino, there are 6 comfortable months with high temperatures in the range of 70-85°. August is the hottest month for San Marino with an average high temperature of 89.3°, which ranks it as about average compared to other places in California. Any measurable snowfall is a rare occurance in San Marino. There are few days during the summer when the humidity becomes unpleasant.

Today's Weather - San Marino, CA

7 PM PST

Mostly Clear

68°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightMostly Clear54° / 78°S 0 to 10 mph
Monday NightMostly Clear54° / 80°NNE 5 to 10 mph
Tuesday NightMostly Clear54° / 77°S 5 to 15 mph
Wednesday NightMostly Clear54° / 83°S 5 to 15 mph
Thursday NightMostly Clear55° / 83°NE 5 to 15 mph
Friday NightMostly Clear56° / 81°SSE 5 to 15 mph
Saturday NightPartly Cloudy56° / 76°S 5 to 15 mph

Weather Highlights

Summer High: the July high is around 88 degrees
Winter Low: the January low is 47
Rain: averages 19 inches of rain a year
Snow: averages 0 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the San Marino area is 9.2 (10=best), which means it is more comfortable than most places in California.

9.2 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January69° 47°
February70° 48°
March72° 50°
April75° 53°
May78° 57°
June82° 61°
July88° 64°
August89° 65°
September87° 63°
October81° 58°
November74° 51°
December68° 46°
Hot, Freezing, Rainy, Snowy Days: San Marino
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January0060
February0070
March1060
April2030
May2020
June4010
July11010
August13000
September11010
October5020
November1030
December0050

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Reviews for San Marino
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Over 14 years ago

I can't believe that the voters in this city -- always highly REPUBLICAN--are composed of 63% Democrats and in the 30s for republicans. I am a Democrat but was  More

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Over 17 years ago

Our family lived right on the border of San Marino in the 50's and 60's. We went to the fine schools there and enjoyed a wonderful education. There were only 2  More

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