July Weather in San Jose, United States

Last updated: February 24, 2025

July in San Jose, United States showcases an inviting climate, characterized by a maximum temperature reaching 34°C (93°F) and an average of 19°C (66°F). With the minimum temperature dipping to a cool 10°C (50°F), the month offers a pleasant range perfect for outdoor activities. Remarkably, the city experiences zero precipitation, ensuring clear skies throughout the month. Humidity levels hover around 58%, adding a touch of warmth but maintaining a comfortable atmosphere. Experience the sun-drenched days and balmy nights that make July in San Jose a true delight.

July Temperature in San Jose

In July, San Jose basks in warmth, marking one of the year's hottest months. Temperatures range from a mild minimum of 10°C (50°F) to a soaring maximum of 34°C (93°F), with an average of 19°C (66°F) that invites both outdoor activities and late-night strolls. The city transitions from the cooler spring months, where average highs hover around the low 30s, into hotter territory as August nears, often pushing temperatures even higher. This gradual warming trend not only enhances the vibrant local culture but also encourages residents and visitors alike to explore the area’s numerous parks and recreational opportunities under the generous Californian sun.

July Weather in San Jose: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in San Jose, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec505153565964666766635550
Data source: Temperature data for San Jose generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in San Jose

In July, San Jose experiences a striking lack of precipitation, recording 0 mm of rain over the entire month, a trend that continues into August. This dry spell follows a gradual decline from the 145 mm in January to just 24 mm in May, with June also seeing almost no rainfall. The pattern showcases a notable transition into the dry season, as days of rain sharply decrease, culminating in zero precipitation days in both July and August. As the year progresses, precipitation starts to pick up again in October, indicating that while summer may bring an arid atmosphere, the annual cycle ensures that San Jose will eventually see moisture return.

July Precipitation Trends in San Jose

The chart displays monthly precipitation patterns in San Jose, with values for each month alongside July's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec145133114372410132556116
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in San Jose

In July, San Jose experiences a significant drop in humidity, averaging 58%—the lowest of the year. This reduction is part of a broader trend, as the summer months consistently showcase diminishing humidity levels, starting from a high of 82% in January and gradually decreasing through the spring. June sets the stage for July's comfortable, drier air at 64%, and as the region transitions into late summer, humidity continues to decline, reaching 54% in August. This pattern not only enhances the region's appeal for outdoor activities but also offers a reprieve from the typically high moisture levels seen earlier in the year.

July Average Humidity in San Jose

This chart illustrates the average monthly humidity levels in San Jose, with July's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how July's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in San Jose

In July, San Jose experiences an extreme UV Index of 11, maintaining the high intensity that characterizes the summer months. This level of UV exposure requires caution, as the burn time is just 10 minutes for unprotected skin. The trend in UV Index values is quite striking; starting from a moderate 4 in January, the UV Index steadily climbs, peaking in May and June, before stabilizing at 11 through July. As summer progresses, residents and visitors should be particularly vigilant, utilizing sunscreen and protective clothing to shield against the harmful effects of the sun. For more information on UV levels throughout the year, visit San Jose UV Index.

Maximum UV Index Levels in San Jose for July

The chart shows the monthly maximum UV Index (UVI) for San Jose in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec4589111111109753
Data source: San Jose July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

July Sunshine in San Jose

July shines brightly in San Jose, boasting an impressive 379 hours of sunshine, making it one of the sunniest months of the year. This delightful peak follows a steady upward trend from the earlier months, showcasing a gradual increase in sunlight from 162 hours in January to a remarkable 373 hours in June. The warmth of summer is clearly felt as the city enjoys longer days, while August, though slightly reduced to 348 hours, still maintains a vibrant glow. Overall, San Jose's weather in July not only highlights the region's abundance of sunshine but also sets the stage for a lush, lively summer, marking a significant peak in the sun-drenched calendar.

Monthly Sunshine Duration in San Jose: July Highlighted

The July sunshine duration represents the total number of hours San Jose experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec162h222h269h303h360h373h379h348h310h286h233h206h
Data source: San Jose July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in San Jose During July

In San Jose, United States, July maintains a 74% chance of sunny weather, aligning with a trend of consistently high sun likelihood during the summer months. This figure is slightly lower than the peak observed in August at 84%, but it still places July among the sunnier months of the year. Leading up to July, May and June also showcase impressive sun probabilities of 75% and 74%, respectively, indicating a warm progression into the summer. As the year advances from the more overcast winter months, where chances hover around 44% to 57%, the summer transition is evident, making July an appealing time for outdoor activities in this vibrant city.

Percentage of Sunny Days in July in San Jose

The chart illustrates the percentage of sunny days in San Jose throughout the year, with July highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often San Jose experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec44%57%56%56%75%74%75%84%80%58%55%40%
Data source: San Jose July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in San Jose in July

In July, San Jose basks in a generous 14 hours of daylight, which aligns with the peak of summer and reflects a trend of increasing sunlight throughout the spring months. As the year progresses from January's 9 hours to July's peak, each month sees a steady rise, culminating in this sun-drenched height. Notably, daylight remains consistent in July and June before transitioning to a gradual decline in August, indicating a slow but inevitable shift toward autumn. This seasonal rhythm not only enhances outdoor activities during the vibrant summer but also invites a unique appreciation for the changing light as the year unfolds.

Average Daylight Hours in San Jose for July

The chart illustrates the variation in daylight duration in San Jose throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 55m10h 49m11h 59m13h 10m14h 10m14h 39m14h 23m13h 30m12h 21m11h 10m10h 9m9h 38m
Data source: San Jose daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in San Jose

In July, San Jose experiences a notable dip in wind speed, averaging just 1.6 m/s (4 mph). This marks the lowest point of the year, contrasting sharply with the steady breezes felt in the spring months, where speeds hovered around 2.1 to 2.2 m/s. As summer progresses, the winds continue to calm, with August also showing a decline, averaging 1.5 m/s (3 mph). This trend indicates a shift towards a quieter atmosphere in the heart of summer, providing residents and visitors with warm, still days ideal for outdoor activities. The gentle winds of July, while lighter than earlier months, create a serene backdrop for the vibrant summer scenes in this bustling city.

Average July Wind Speed in San Jose

The chart displays monthly wind speed patterns in San Jose, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.22.11.92.22.11.6 m/s1.51.62.11.72.2
Data source: San Jose July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in San Jose Compares to Other Months

The weather in San Jose changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in San Jose and find detailed weather information for every month.

July and January present stark contrasts in weather conditions. July experiences warm temperatures, with a minimum of 10°C (50°F), an average of 19°C (66°F), and a maximum of 34°C (93°F). The month is characterized by dry conditions, with no recorded precipitation and a humidity level of 58%. In contrast, January is much cooler, featuring a minimum temperature of 0°C (32°F), an average of 10°C (51°F), and a maximum of 24°C (75°F). This winter month is considerably wetter, recording 145 mm (5.7 in) of precipitation across 8 days, along with a higher humidity level of 82%. For more detailed insights, you can check San Jose weather in January.

July and February present stark contrasts in weather conditions. In July, temperatures range from a cool minimum of 10°C (50°F) to a hot maximum of 34°C (93°F), with an average of 19°C (66°F). The month is characterized by dry conditions, featuring no precipitation and a moderate humidity level of 58%. In contrast, February experiences much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 25°C (77°F), averaging 11°C (52°F). This month is considerably wetter, receiving 133 mm (5.2 in) of precipitation over 8 days, along with higher humidity at 84%. For more detailed information, check out San Jose weather in February.

In comparing the weather between July and March, July offers much warmer conditions with average temperatures ranging from a minimum of 10°C (50°F) to a maximum of 34°C (93°F) and almost no precipitation, making it a dry month with 0 mm of rainfall. In contrast, March experiences cooler temperatures, with an average low of 1°C (34°F) and a maximum of 26°C (79°F), along with substantial rainfall totaling 114 mm (4.5 in) spread over 12 days. The humidity is also higher in March at 82%, compared to 58% in July, contributing to a distinctly different climate experienced during these two months. For more details, you can check San Jose weather in March.

When comparing the weather between July and April, it's clear that July is significantly warmer, with a minimum temperature of 10°C (50°F) and an average of 19°C (66°F), peaking at a sizzling 34°C (93°F). In contrast, April experiences cooler temperatures, with a minimum of 3°C (38°F), an average of 13°C (56°F), and a maximum of 31°C (88°F). Additionally, July is remarkably dry, boasting no recorded precipitation and an average humidity of 58%, while April is wetter, receiving 37 mm (1.4 in) of rain over four days and having higher humidity at 78%. For more details about the weather patterns in April, you can check San Jose weather in April.

In comparison to May, July in San Jose exhibits a warmer temperature range, with a minimum of 10°C (50°F) and averaging 19°C (66°F), peaking at 34°C (93°F). In contrast, May has slightly cooler temperatures, starting from a minimum of 5°C (40°F) and averaging 15°C (59°F), with a maximum of 32°C (90°F). Additionally, July boasts dry conditions with no recorded precipitation, while May experiences some rainfall, totaling 24 mm (0.9 in) over two days. Humidity levels are also lower in July at 58%, compared to 71% in May. For more details, you can check San Jose weather in May.

The weather in July is generally warmer and drier compared to June. July features a minimum temperature of 10°C (50°F) and an average temperature of 19°C (66°F), with a maximum reaching 34°C (93°F). In contrast, June has slightly cooler minimum and average temperatures, with lows of 8°C (47°F) and an average of 18°C (64°F), peaking at 37°C (99°F). Both months experience very little precipitation, but July records none at 0 mm (0.0 in), while June sees minimal rain at 1 mm (0.0 in). The humidity in July is also lower at 58%, compared to June's 64%. For a more detailed look at June weather, you can visit San Jose weather in June.

In July, the weather offers a pleasant mix of temperatures, with a minimum of 10°C (50°F), an average of 19°C (66°F), and a maximum reaching 34°C (93°F). The month is notably dry, featuring no recorded precipitation and a humidity level of 58%. In contrast, August sees slightly warmer conditions with a minimum of 11°C (52°F) and a higher maximum temperature of 39°C (102°F), while maintaining an average of 19°C (67°F). Similar to July, August remains dry with 0 mm of precipitation over the month, but it experiences a slight decrease in humidity to 54%. For a detailed look at August weather in San Jose, visit San Jose weather in August.

In July, the weather features pleasant temperatures with a minimum of 10°C (50°F) and an average of 19°C (66°F), reaching a maximum of 34°C (93°F). This month enjoys completely dry conditions, with no recorded precipitation. The humidity is relatively moderate at 58%.

In contrast, September sees a slight cooling in the mornings, with minimum temperatures dropping to 7°C (45°F), while the average remains similar at 19°C (67°F). Notably, September can also experience a remarkable maximum temperature of 41°C (106°F), though there is very minimal precipitation of 3 mm (0.1 in), also spread across no rainy days. Humidity remains slightly lower at 55%.

For more detailed insights into September weather, you can visit San Jose weather in September.

In comparison to July, October generally brings cooler temperatures, with a minimum of 5°C (42°F) compared to July's 10°C (50°F), and an average of 17°C (63°F) versus July's 19°C (66°F). While both months can reach a maximum of 34°C (94°F) on some days, October sees an increase in humidity, rising to 62% from July's 58%. Furthermore, October experiences some precipitation, averaging 25 mm (1.0 in) over one day, whereas July typically enjoys a dry spell with no recorded precipitation. For more detailed information, you can check out San Jose weather in October.

July and November offer distinctly different weather experiences. In July, temperatures range from a minimum of 10°C (50°F) to a maximum of 34°C (93°F) with an average of 19°C (66°F), accompanied by dry conditions and no recorded precipitation. The humidity is relatively moderate at 58%. In contrast, November sees cooler temperatures, with a low of 1°C (34°F), an average of 13°C (56°F), and a high of 28°C (83°F). November is also marked by increased precipitation, totaling 56 mm (2.2 in) over about five days, and higher humidity at 78%. This shift from the warm, dry summer months to the cooler, wetter conditions of late fall is quite pronounced. For more detailed insights, you can check San Jose weather in November.

When comparing the weather in July and December, a striking contrast emerges. July boasts warmer temperatures, with a minimum of 10°C and an average of 19°C, peaking at 34°C. In stark contrast, December experiences much cooler conditions, starting at a minimum of 1°C, averaging 10°C, and reaching a maximum of 24°C. Additionally, July is characterized by dry weather, with no recorded precipitation, while December sees significant rain, with 116 mm of rainfall over nine days. The humidity levels also differ, as July maintains a moderate 58%, whereas December's humidity rises to 80%. For further details, you can check out San Jose weather in December.

Compare San Jose's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in San Jose

July in San Jose brings remarkable warmth and sunshine, making it stand out from the cooler, wetter months of the year. With abundant sunshine and no reported precipitation, this month is perfect for outdoor activities and soaking up the sun. The contrast in humidity levels, which hover around a comfortable 58%, makes the heat feel inviting rather than oppressive. While temperatures can peak at around 34°C (93°F), the average low provides a refreshing drop to 19°C (66°F) at night, ensuring pleasant evenings. This dry and warm weather is a true hallmark of summer in San Jose, setting it apart from the milder, rainier seasons. For a comprehensive view of the city's weather patterns, explore San Jose Climate.