What’s the climate like in San Diego?
The current climate of San Diego features average monthly temperatures ranging from highs of 26°C during the day to lows of 19°C. 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.
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.
On average, San Diego receives 241 mm of precipitation each year. For comparison, London gets 701 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 good temperatures and not too much rain, making it a great time to visit San Diego.
Climate Table of San Diego
The climate table of San Diego shows the average temperatures, precipitation, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation 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.
- Average yearly temperature: 23°C
- Highest temperature: 26°C in August and September
- Lowest temperature: 19°C in December
- Precipitation: 241 mm per year, averaging 20 mm per month
- Driest months: 0,7 mm in June, 5,4 mm in August and 5,9 mm in July
- Wettest months: 54 mm in December, 44 mm in January and 38 mm in February
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Table of Contents
Average Temperature per Month in San Diego
This graph shows the average maximum temperatures per month in San Diego, California. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in San Diego
This graph shows how much precipitation San Diego, California, gets on average per month. Precipitation is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average UV Index per Month in San Diego
This graph 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.
Yearly Temperature in San Diego
This graph shows the average yearly temperature in San Diego, California. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in San Diego
This chart shows the total yearly precipitation in San Diego, California, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Weather experiences in San Diego
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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.
