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The weather in July in San Luis Obispo

It's warm in July in San Luis Obispo with an average temperature of 26°C. Temperatures this month range from a low of 24°C to a high of 28°C. At night, you can expect temperatures between 13°C and 15°C.

Looking for great weather? July is a good time to be in San Luis Obispo. The temperatures are nice, and there’s not too much rain.

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 Luis Obispo, California. 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 39°C in 2018, San Luis Obispo reached the highest temperature in July over the past 10 years. The lowest daytime temperature in this month was 19°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of 8°C to a highest value of 21°C.

Rainfall amount

According to weather history, there is only 6,7 mm of precipitation in July. The wind speed is around 4 Bft, mostly coming from the Northwest.

Daily weather in July for San Luis Obispo

Click on any day in July to get detailed info about the usual weather on that day in San Luis Obispo. Check out the historical temperatures and precipitation over the past 10 years on this day.

July weather comparison

  San Luis Obispo New York
Average temperature 26°C 31°C
Max. temperature 28°C 33°C
Min. temperature 13°C -5°C
Total precipitation 6,7 mm 160 mm
Rainy days 1 day 18 days

Start of July

The month of July starts in San Luis Obispo with warm temps, averaging around 26°C during the day and nights around 14°C.

Mid July

By mid-July, daytime temps rise to around 27°C, with nights around 15°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 Luis Obispo is around 27°C, while nighttime temps are about 14°C. No precipitation expected at the end of the month; it’ll be mostly 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.

Check out the climate of San Luis Obispo for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in July in San Luis Obispo, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in July in San Luis Obispo

Temperature in July in San Luis Obispo over the years

Precipitation charts

These charts show the average amount of precipitation in July in San Luis Obispo, 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.

Daily Precipitation in July in San Luis Obispo

Total precipitation in July in San Luis Obispo over the years

Daily UV index in July in San Luis Obispo

This chart shows the average daily UV index in July in San Luis Obispo, 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 Luis Obispo

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Average weather in San Luis Obispo by month

Click on a month below to see detailed weather info for San Luis Obispo. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.