San Jose, CA weather in July
In July, San Jose sees highs around 81°F and lows around 58°F: warm and dry. Rain is rare. It is one of the warmest months in San Jose. Great for outdoor plans.
- Normal high
- 81°F
- Normal low
- 58°F
- Wet days
- 0
- 0.0 in total
- Muggy days
- 0
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 81°F | 81°F |
| Normal low | 57°F | 59°F |
| Chance of a wet day | 1% | 1% |
| Sunrise / sunset | 5:50 am / 8:32 pm | 6:11 am / 8:16 pm |
| Daylight | 14.7 h | 14.1 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical July day
- 6 am57°Fdew point 53°F
- 9 am63°Fdew point 54°F
- Noon69°Fdew point 54°F
- 3 pm69°Fdew point 54°F
- 6 pm64°Fdew point 53°F
- 9 pm59°Fdew point 53°F
NOAA hourly normals (local standard time) from San Francisco Intl Airport (32 mi away); average wind 13 mph; clear or few clouds in 65% of daytime hours, mostly cloudy or overcast in 17%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F16 of 31
- Hot dayshigh 90°F or more3 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow0 of 31
- Notable rainat least 0.10 in0 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 0.0 in; a dry July brings about 0.0 in and a wet one about 0.0 in (25th and 75th percentiles). Days with half an inch or more are rare.
How July varies from year to year
- Warmest July, 1991-20202006: average high 85°F
- Coolest July1999: average high 78°F
- Wettest July2000: 0.04 in
- Driest July1999: no measurable precipitation
- Highest reading104°F (July 23, 2006)
- Lowest reading50°F (July 4, 1999)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 79°F | 81°F | 81°F |
| Normal low | 56°F | 58°F | 59°F |
| Wet days | 1 | 0 | 0 |
| Comfortable days | 19 | 16 | 17 |
| Daylight | 14.7 h | 14.4 h | 13.6 h |
Highs change by +2°F from June and 0°F into August.
Nearby alternatives in July
- Warmer: Tracy, CA38 mi · high 95°F · 0 wet days
- Cooler: Hayward, CA25 mi · high 73°F · 0 wet days
How San Jose ranks in July
- Normal high313th warmest of 378 cities; 43rd of 60 in California
- Wet days12th driest of 378
- Comfortable days25th most of 340
What to pack for San Jose in July
- Sunglasses and sunscreen – about 14.4 hours of daylight and highs near 81°F
Heating and cooling
July has 4 heating degree days and 142 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.
Questions
How hot is San Jose in July?
The normal high is 81°F and the normal low is 58°F. From 1991 to 2020 the hottest July reading was 104°F (July 23, 2006).
Does it rain a lot in San Jose in July?
About 0 days in July have at least 0.01 in of precipitation, and the normal total is 0.00 in. The wettest July in 1991-2020 was in 2000 (0.04 in); the driest was in 1999, with no measurable precipitation.
Is July a good time to visit San Jose?
July ranks 3rd of 12 months on our comfort score for San Jose (78 out of 100). It has about 16 comfortable days and about 3 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain and frost dates: San Jose (USW00023293), 2.1 mi NW of the city center, 51 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: San Jose (USC00047821), 0.8 mi NNW of the city center, 67 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: San Francisco Intl Airport (USW00023234), 32 mi NW of the city center, 8 ft (73 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: N Y. Mineta Sn Jo Intl Apt (724945-23293), 2.1 mi NW of the city center, 49 ft . Hourly observations, 1991-2020.