Weather in San Jose in July 2025
Average weather
Average temperature in San Jose in July
The expected average maximum temperature in July is +79°F with a maximum of +81°F and a minimum of +63°F.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +79°F to +79°F.
Is San Jose warm or cold in July?
San Jose is typically warm in July.
Maximum temperatures go down compared to the previous month from +77°F to +75°F. The minimum temperature also goes up from +64°F to +64°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
July is one of the coolest months in San Jose, here is the comparison with other months:
Water temperature in San Jose in July
Water in San Jose in July is Very warm. It varies from +83°F to +85°F, with an average of +84°F. Note that the air temperature is lower than the water temperature, averaging around +75°F.
In July, water temperatures are average relative to the rest of the year:
Can you swim in San Jose in July?
Climate in San Jose in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +77°F | +75°F | +75°F | ||||
| Min. temperature | ||||||
| +59°F | +57°F | +59°F | ||||
| Max. temperature | ||||||
| +84°F | +82°F | +84°F | ||||
| Rainfall | ||||||
| 679 mm | 706 mm | 753 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +84°F | +84°F | +84°F | ||||
| Humidity | ||||||
| 84% | 81% | 82% | ||||
| Air pressure | ||||||
| 1014 HPa | 1014 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 0 | 0 | 0 | ||||
| Rainy days | ||||||
| 18 | 22 | 19 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as ok as in June. It’s getting colder in July. From +77°F in the day, the average maximum temperature lowers to +75°F. Prepare for more rain. Average rainfall goes from 679 mm to 706 mm. It feels drier, as humidity decreases from 84% to 81%. The average wind speed doesn’t change much during July, staying around 2 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
August brings much the same weather, it remains ok.
Wind
The average wind speed is 4 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in San Jose is gradually increasing during July, going from 3 m/s to 3 m/s over the course of the month.
Rain
How was the weather last July in San Jose?
Climate Change Over the Years
The climate in San Jose in July has not changed that much over the last 43 years.
The average temperature was the lowest in 1999 (+74°F) and the highest in 2013 (+79°F). The driest year was 2023 with only 3365 mm of rainfall, and the wettest year was 1995 with 7044 mm.
FAQ
Is July a good time to visit San Jose?
Can you sunbathe in San Jose in July?
Can you swim in San Jose in July?
Is San Jose rainy in July?
Is it sunny in San Jose in July?
Monthly weather in San Jose
Source of the data
For this page, we’ve looked at the typical weather in San Jose, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.