Last updated: August 21, 2025
In July, Si'an, China experiences an array of weather conditions that define the peak of summer. The maximum temperature can soar up to 39°C (102°F), while the average hovers around a warm 28°C (83°F), offering a tropical feel to the region. With a minimum temperature of 20°C (68°F), the nights provide some mild relief. However, residents and visitors should prepare for significant moisture, as the city receives an impressive 299 mm (11.8 in) of precipitation over 17 days, resulting in 90% humidity that can make the air feel quite heavy. This combination of heat and humidity showcases the dynamic climate of Si'an, making July a month of intense summer experiences.
In July, Si'an, China, experiences a warm embrace with temperatures reaching a minimum of 20°C (68°F) and soaring to a sizzling 39°C (102°F). This month marks the peak of summer, where the average temperature hovers around a balmy 28°C (83°F), encouraging outdoor activities and lively street festivals. The transition from the relatively cooler months of June, where temperatures fluctuate between 14°C (58°F) and 37°C (99°F), sets the stage for the heat of July. As the summer progresses, it's clear that Si'an invites visitors to enjoy its vibrant scene, all while keeping cool in the abundance of sun and warmth that defines this captivating season.
In July, Si'an experiences a peak in rainfall, with an impressive 299 mm (11.8 in) of precipitation over 17 days. This significant increase follows a robust June, which itself saw 257 mm of rain, marking a notable trend of escalating moisture as summer progresses. The intensity of rainfall in July not only surpasses the previous month’s totals but also sets the stage for lush landscapes, creating a vibrant environment teeming with life. As the summer continues, the precipitation gradually declines in August with 190 mm, but the pattern of abundant rainfall during the peak months suggests a strong monsoon influence in Si'an’s climate.
In Si'an, China, July marks the peak of humidity, reaching 90%, a notable increase compared to the preceding months. This trend of escalating moisture content can be seen throughout the summer, as humidity climbs steadily from 85% in June to its highest point in July, then slightly recedes to 88% in August. As the year progresses, humidity tends to fluctuate, with the winter months showing lower levels around 70% to 77%, while the late spring into summer period showcases a clear tendency towards higher humidity levels. Such patterns reflect the region's distinct seasonal shifts, underscoring the sticky heat of summer that residents can expect.
In July, Si'an, China experiences one of its highest UV Index levels, maintaining an extreme rating of 11 that continues from the previous months of May and June. With a burn time of just 10 minutes, the intense sun exposure during this period demands caution and protection, especially for outdoor activities. This trend of elevated UV levels highlights the necessity for residents and visitors alike to be mindful of their sun safety practices. As temperatures rise, the importance of sunscreen, protective clothing, and seeking shade becomes paramount in enjoying the summer climate without risking skin damage. For more detailed insights, check out the Si'an UV Index.
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In July, Si'an basks in an impressive 282 hours of sunshine, marking not only a peak in summer brightness but also a continuation of a delightful trend that begins in the spring. Following the gradual increase from 152 hours in January through to June's 263 hours, July's sun-drenched days set the stage for an even sunnier August, which takes the record with 300 hours. The warmth of July not only signifies the height of summer but also illustrates the region's transition from a mild winter into the vibrant energy of summer, offering a perfect backdrop for outdoor activities and exploration. With consistent sunshine leading into the latter part of the year, Si'an shines brightly as a destination for sun-seekers all summer long.
When considering the likelihood of sunny weather in July in Si'an, China, it becomes evident that this month presents one of the lowest chances for sun with just a 17% probability. This trend highlights a noticeable dip compared to earlier months, such as January, when the chance of sun reaches 50%, and even contrasts with the sunnier days typical in August at 31%. As summer progresses, the likelihood of clear skies diminishes, suggesting that visitors may want to brace for more overcast conditions during this part of the year. Looking ahead, the sunny probabilities improve notably in the fall, ultimately suggesting that while July may not be the sunniest month, subsequent months offer a better chance for sunshine.
In Si'an, China, the pattern of daylight duration beautifully reflects the changing seasons. Starting with a modest 10 hours in January, daylight gradually increases, peaking at 14 hours in June, when long summer days are best enjoyed. By July, daylight begins to taper slightly, settling back to 13 hours, a hint that the summer's peak is passing. The months following July witness a slow decline, with daylight gently waning to 12 hours in September, before returning to shorter stretches of light through the autumn and winter months. This rhythmic cycle of daylight not only marks the transition of seasons but also offers a beautiful backdrop for the cultural and natural transformations throughout the year.
In July, Si'an, China experiences a notable uptick in wind speed, averaging 2.9 m/s (7 mph)—a welcome change that stands out against the generally calm breezes of recent months. This spike marks a brief resurgence in wind activity following a gradual decline from April through June, where speeds dipped to a low of 2.2 m/s (5 mph). Interestingly, while the summer months generally bring lower wind speeds, July defies this trend, hinting at a refreshing energy that invigorates the atmosphere. As the heat of summer settles in, this rise not only provides a reprieve from the sweltering warmth but also sets the stage for the subsequent lull in August, where winds ease back down to 2.1 m/s (5 mph).
Weather in Si'an varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Si'an, focusing on differences in temperature, rainfall, humidity, and UV levels.
July and January present stark contrasts in weather conditions. In July, temperatures soar with a minimum of 20°C (68°F) and an average of 28°C (83°F), peaking at a scorching 39°C (102°F). This month is also marked by high humidity at 90% and significant rainfall, averaging 299 mm (11.8 in) over 17 days. In sharp contrast, January features much colder conditions, with temperatures dropping to a minimum of -11°C (13°F) and an average of just 5°C (41°F), reaching a maximum of 20°C (68°F). Precipitation is significantly lower in this winter month, averaging 68 mm (2.7 in) over only 8 days, and humidity is more moderate at 70%. For a detailed look at January conditions, you can visit Si'an weather in January.
July and February present striking contrasts in weather conditions. In July, temperatures soar with a minimum of 20°C (68°F) and an average of 28°C (83°F), occasionally reaching up to a scorching 39°C (102°F). High humidity levels at 90% and significant rainfall—299 mm spread over 17 days—make July a hot and often steamy month. Conversely, February offers a much cooler climate, with temperatures ranging from a minimum of -8°C (18°F) to a maximum of 26°C (79°F), averaging around 6°C (44°F). Precipitation is significantly lower at 71 mm over 10 days, and humidity levels are more moderate at 73%. For a deeper insight into February's weather specifics, you can visit Si'an weather in February.
The weather in July and March presents a stark contrast. July boasts much warmer temperatures, with a minimum of 20°C (68°F) and an average of 28°C (83°F), while March temperatures can drop as low as -1°C (30°F) and only reach an average of 12°C (54°F). While July experiences significant rainfall, accumulating 299 mm (11.8 in) over 17 days, March is relatively drier with 106 mm (4.2 in) of precipitation over 13 days. Additionally, July's humidity levels soar to 90%, compared to March's more moderate 82%. For more insights on March's climate, visit Si'an weather in March.
The weather in July is significantly hotter and more humid compared to April. While April experiences milder temperatures, with a minimum of 2°C and an average of 17°C, July boasts a much higher average temperature of 28°C, peaking at a scorching 39°C. Additionally, July sees much more precipitation, with 299 mm falling over 17 days, compared to April's 81 mm over just 8 days. The humidity levels are slightly higher in July at 90%, compared to April's 86%, contributing to the oppressive summer heat. For a detailed look at April's conditions, visit Si'an weather in April.
In comparing the weather of July and May, July experiences significantly warmer temperatures, with an average of 28°C (83°F) and peak highs reaching 39°C (102°F), while May offers a cooler average temperature of 22°C (71°F), with maximums up to 37°C (99°F). Additionally, July sees more humidity, averaging around 90%, compared to May's 85%. Precipitation is also much higher in July, with 299 mm (11.8 in) falling over 17 days, whereas May has a total of 135 mm (5.3 in) over just 11 days. For more detailed information about the weather during May, refer to Si'an weather in May.
In comparing the weather of July to June, July exhibits significantly warmer temperatures, with a minimum of 20°C (68°F) and an average of 28°C (83°F), compared to June's minimum of 14°C (58°F) and average of 25°C (77°F). The maximum temperature in July reaches a sweltering 39°C (102°F), while June peaks at 37°C (99°F). Although both months experience considerable precipitation, July has a higher total of 299 mm (11.8 in) over 17 days, while June recorded 257 mm (10.1 in) across 15 days. Humidity levels are also higher in July at 90%, compared to June's 85%. For a closer look at June's weather specifics, visit Si'an weather in June.
In comparing July and August weather, July typically experiences higher temperatures with a minimum of 20°C (68°F) and an average of 28°C (83°F), peaking at 39°C (102°F). This month also sees significant precipitation, totaling 299 mm (11.8 in) over 17 days and a high humidity of 90%. Conversely, August offers a slightly cooler climate, with minimum temperatures of 18°C (64°F) and an average of 29°C (84°F), reaching up to a maximum of 38°C (100°F). Additionally, precipitation in August is lower at 190 mm (7.5 in) over 15 days, and humidity decreases slightly to 88%. For more details on August weather, you can visit Si'an weather in August.
In comparing the weather conditions of July and September, a distinct shift can be observed. July features a much higher average temperature of 28°C (83°F), with maximums soaring to 39°C (102°F), alongside significant rainfall of 299 mm (11.8 in) over 17 days and high humidity at 90%. Conversely, September brings a noticeable drop in temperatures, with a minimum of 13°C (56°F) and a more comfortable average of 25°C (77°F). Despite having a maximum temperature of 36°C (98°F), September experiences considerably less rainfall at 120 mm (4.7 in) over just 12 days, and the humidity levels decrease to 75%. This transition highlights the gradual cooling and drying trend as summer gives way to early autumn. For more insights on weather specifics, check Si'an weather in September.
In July, the weather is characterized by high temperatures, with minimums around 20°C (68°F) and averages peaking at 28°C (83°F), sometimes soaring to a maximum of 39°C (102°F). This month also sees significant rainfall, with 299 mm (11.8 in) of precipitation spread over 17 days and high humidity levels reaching 90%. In contrast, October brings a noticeable shift in climate. Temperatures drop to a minimum of 7°C (44°F), with an average of 19°C (66°F) and a maximum of 34°C (93°F). The month is much drier, with only 50 mm (2.0 in) of precipitation occurring over just 8 days, and humidity falls to 76%. For a more detailed look at the weather during this month, you can check Si'an weather in October.
July and November display stark contrasts in weather. July experiences warm temperatures, with a minimum of 20°C (68°F) and an average of 28°C (83°F), peaking at 39°C (102°F). This month is also marked by significant precipitation, with 299 mm (11.8 in) falling over 17 days and high humidity at 90%. In contrast, November sees much cooler weather, where the temperatures dip to a minimum of -2°C (28°F) and average around 13°C (56°F), while reaching a maximum of 28°C (83°F). Additionally, November is much drier, with only 45 mm (1.8 in) of rain over 8 days and humidity slightly lower at 84%. For more detailed insights into November weather, check out Si'an weather in November.
July and December present a stark contrast in weather conditions. July boasts high temperatures with a minimum of 20°C (68°F) and an average of 28°C (83°F), reaching peaks of up to 39°C (102°F). This month is also characterized by significant rainfall, totaling 299 mm (11.8 in) over 17 days, combined with high humidity levels at 90%. In contrast, December experiences much cooler temperatures, ranging from a minimum of -5°C (22°F) to a maximum of 23°C (73°F), with an average of 7°C (44°F). Precipitation is notably lower in December, accumulating to only 52 mm (2.0 in) over 8 days, and humidity drops to 77%. For more insights on December weather, you can check Si'an weather in December.
July in Si'an brings a distinctive warmth and humidity that sets it apart from the rest of the year. With peak temperatures soaring and an average that invites visitors to seek solace from the heat, this month is characterized by frequent rainfall, making the atmosphere feel even more humid. The lush greenery inspired by the precipitation creates a striking contrast to the intense sun, offering a unique experience for residents and travelers alike. For those planning to visit, understanding the dynamics of July weather is key to fully enjoying the rich offerings of Si'an. To learn more about the climate specifics, take a look at Si'an Climate.