United StatesThe climate of San Diego
The current climate in San Diego features temperatures ranging from a high of 26°C to a low of 19°C throughout the year. The average yearly temperature is around 23°C. At night, temperatures in the colder months average around 10°C and in the warmer months around 21°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for San Diego, California.
Temperature records
The highest temperature recorded in San Diego in recent years was 38°C in September 2016. The lowest daytime temperature recorded was 12°C in December 2014.
Rainfall amount
On average, San Diego receives 241 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.
Best time to visit San Diego?
The best time to visit San Diego for sunny weather is January through December. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit San Diego.
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Climate Table of San Diego
The climate table of San Diego shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 20 | 20 | 20 | 21 | 21 | 22 | 25 | 26 | 26 | 25 | 23 | 19 |
| Temp. min (°C) | 11 | 12 | 13 | 15 | 16 | 18 | 20 | 21 | 20 | 18 | 13 | 11 |
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| Precipitation (mm) | 44 | 38 | 35 | 13 | 12 | 0,7 | 5,9 | 5,4 | 6,7 | 6,2 | 20 | 54 |
| UV Index | 5 | 6 | 7 | 8 | 8 | 8 | 9 | 8 | 7 | 6 | 6 | 5 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in San Diego, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in San Diego
Yearly Temperature in San Diego
Precipitation charts
These charts show the average amount of precipitation in San Diego, California. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in San Diego
Total Yearly Precipitation in San Diego
UV index chart
This chart shows the average UV index per month in San Diego, California. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in San Diego
Weather experiences in San Diego
The weather in San Diego is rated 5 out of 5 stars by 1 visitor.
Joey Junge
2 days rain and 2 days heavily cloudy with most of the rain falling in the evening/night and becoming dry in the morning. Many sunny days with occasional light clouds. Temperatures from 18 to 24 degrees during the day. Evening temperatures averaging 8 - 10 degrees. Was even heat records broken in the month of January.
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Average weather in San Diego by month
Click on a month below to see detailed weather info for San Diego. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.