Normal weather for San Diego in December
It's warm in December in San Diego with an average temperature of 23°C. Temperatures this month range from a low of 20°C to a high of 25°C. At night, you can expect temperatures between 8°C and 14°C.
In December, there is an average of 29 mm of precipitation, spread over 6 days. Of the total precipitation, about 0,2 cm falls as snow in December. The wind speed is around 4 Bft, mostly coming from the Southeast.
Want nice weather? Then December is a great time to be in San Diego. You’ll have pleasant temperatures and not too much rain this month.
San Diego in December |
London | ||
|---|---|---|---|
 Average Temperature |
23°C | 9°C | |
 High Temp |
25°C | 11°C | |
| Low Temp |
20°C | 8°C | |
 Total Precipitation |
29 mm | 67 mm | |
| Rainy Days |
6 days | 10 days | |
 Total Snowfall |
0,2 cm | 1,2 cm | |
| Snowy Days |
1 day | 1 day | |
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
The hurricane season in San Diego runs from June to November.
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Start of December
The month of December starts in San Diego with warm temperatures, averaging around 24°C during the day and nights close to 12°C. A few showers might pop up in the first days of the month, but the weather remains mostly sunny and dry.
Mid-December
By mid-December, the average daytime temperature drops to around 23°C, with nights close to 11°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of December
By the end of December, the average daytime temperature in San Diego will be around 23°C, with nights close to 11°C. Barely any chance of precipitation. The weather will mostly be dry with lots of sunshine.
Check out the climate of San Diego for all months and discover the best travel time
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Daily Temperature in December in San Diego
This chart shows the average daily temperatures, both day and night, for each day in December in San Diego, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in December in San Diego
The chart below shows the average daily precipitation in December for San Diego, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for December, you can expect around 6 days of rain in San Diego.
Daily Snowfall in December in San Diego
This chart shows the average daily snowfall in December in San Diego, measured in centimetres. The bottom of the chart shows the days of the month. The data is based on historical measurements and gives an idea of the average snowfall in December.
Daily UV Index in December in San Diego
This chart shows the average daily UV index in December in San Diego, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in San Diego Over the Years
This chart shows the average temperature in December in San Diego, measured in degrees Celsius, over the past years.
Total Precipitation in December in San Diego Over the Years
This chart shows the average precipitation in December in San Diego, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Snowfall in December in San Diego per year
This chart shows the average snowfall in December in San Diego, measured in centimetres, over the past years.
Daily climate in December for San Diego
Click on a specific day in December for detailed info on the typical weather on that day in San Diego. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December 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.
Or check out the climate of San Diego for all months at once
