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United StatesThe weather in July in San Diego
It's hot in July in San Diego with an average temperature of 37°C. Temperatures this month range from a low of 35°C to a high of 38°C. At night, you can expect temperatures between 23°C and 25°C.
July isn’t a good month to be in San Diego. The average temperature of 37°C this month is uncomfortably hot for a comfortable stay.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in July for San Diego, Texas. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 42°C in 2023, San Diego reached the highest temperature in July over the past 10 years. The lowest daytime temperature in this month was 28°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 19°C to a highest value of 30°C.
Rainfall amount
In July, there is an average of 72 mm of precipitation, spread over 10 days. The wind speed is around 5 Bft, mostly coming from the Southeast.
Daily weather in July for San Diego
Click on any day in July to get detailed info about the usual weather on that day in San Diego. Check out the historical temperatures and precipitation over the past 10 years on this day.
July weather comparison
| San Diego | New York | |
|---|---|---|
| Average temperature | 37°C | 31°C |
| Max. temperature | 38°C | 33°C |
| Min. temperature | 23°C | -5°C |
| Total precipitation | 72 mm | 160 mm |
| Rainy days | 10 days | 18 days |
Start of July
The month of July starts in San Diego with hot temps, averaging around 36°C during the day and nights around 25°C.
Mid July
By mid-July, daytime temps rise to around 37°C, with nights around 25°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of July
By the end of July, the average daytime temperature in San Diego is around 37°C, while nighttime temps are about 25°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
The hurricane season in San Diego runs from June to November.
Check out the climate of San Diego for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in July in San Diego, Texas. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in July in San Diego
Temperature in July in San Diego over the years
Precipitation charts
These charts show the average amount of precipitation in July in San Diego, Texas. 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.
Daily Precipitation in July in San Diego
Total precipitation in July in San Diego over the years
Daily UV index in July in San Diego
This chart shows the average daily UV index in July 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.
Weather experiences in July 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.