Average weather for San Bernardino in July
It's hot in July in San Bernardino with an average temperature of 35°C. Temperatures this month range from a low of 32°C to a high of 38°C. At night, you can expect temperatures between 16°C and 22°C.
Start of July
The month of July starts in San Bernardino with hot temps, averaging around 35°C during the day and nights around 18°C. No precipitation expected at the start of the month; it’ll be sunny.
With the temperature difference between day and night, it’s smart to wear layers.
Mid July
By mid-July, daytime temps stay steady at around 35°C, with nights around 20°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 Bernardino is around 36°C, while nighttime temps are about 20°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
According to weather history, there is only 4,5 mm of precipitation in July. The wind speed is around 4 Bft, mostly coming from the West.
San Bernardino in July |
New York | ||
---|---|---|---|
![]() |
35°C | 31°C | |
![]() |
38°C | 33°C | |
![]() |
32°C | -5°C | |
![]() |
4,5 mm | 160 mm | |
![]() |
1 day | 18 days |
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is July a good time to visit San Bernardino?
July is a good month to be in San Bernardino for sunny weather. You’ll have high temperatures and not too much rain.
Temperature records
With 47°C in 2018, San Bernardino reached the highest temperature in July over the past 10 years. The lowest daytime temperature in this month was 25°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 12°C to a highest value of 29°C.
Check out the climate of San Bernardino for all months and discover the best travel time
Daily Temperature in July in San Bernardino
This chart shows the average daily high and low temperatures in July for San Bernardino, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in July in San Bernardino
The chart below shows the average daily precipitation in July for San Bernardino, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed 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 it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for July, you can expect about 1 day of precipitation in San Bernardino.
Daily UV index in July in San Bernardino
This chart shows the average daily UV index in July in San Bernardino, 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 July in San Bernardino over the years
This chart shows the average temperature in July in San Bernardino, measured in degrees Celsius, over the past few years.
Total precipitation in July in San Bernardino over the years
This chart shows the average precipitation in July in San Bernardino, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in July for San Bernardino
Click on any day in July to get detailed info about the usual weather on that day in San Bernardino. Check out the historical temperatures and precipitation over the past 10 years on this day.































Weather experiences in July in San Bernardino
Have you been to San Bernardino in July?
Share your weather experience in July in San Bernardino.
Average weather in San Bernardino by month
Click on a month below to see detailed weather info for San Bernardino. 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 Bernardino for all months at once