July Weather in Nanjing, China

Last updated: August 21, 2025

Experience the summer heat of Nanjing, China, where July brings maximum temperatures reaching a sweltering 37°C (99°F) and an average of 29°C (85°F). While the sun blazes, expect a minimum of 25°C (76°F), making it essential to stay cool and hydrated. Rainfall is also a significant player this month, with 171 mm (6.7 in) of precipitation spread across 23 days, contributing to the high humidity levels of 85%. Whether you're exploring the city's historical sites or enjoying its vibrant culture, be prepared for a mix of warm sunshine and unexpected showers in this lively summer month.

July Temperature in Nanjing

In July, Nanjing experiences its peak summer temperatures, with minimums averaging around 25°C (76°F) and maximums soaring to an impressive 37°C (99°F). This month stands out as the warmest of the year, where the average temperature climbs to 29°C (85°F), reflecting a steady rise in warmth from the preceding months. The heat intensifies significantly, particularly when compared to the mild conditions of January, where temperatures ranged just above freezing. As the city basks in the summer sun, the high humidity can make the warmth feel even more pronounced, inviting both residents and visitors to seek shade and enjoy the vibrant outdoor activities that Nanjing has to offer during this sweltering season.

July Weather in Nanjing: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Nanjing, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nanjing, July typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec606066727982848382777063
Data source: Temperature data for Nanjing generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Nanjing

In Nanjing, China, July sees significant rainfall, with an average precipitation of 171 mm (6.7 in) spread over 23 days. This marks a notable decrease from the torrential downpour of June, which recorded an impressive 264 mm (10.4 in), yet still represents a substantial contribution to the region's summer rainfall. The trend demonstrates that while rainfall is abundant in July, it comes less intensely than in preceding months. This pattern of persistent yet slightly diminished precipitation continues into August, which boasts the highest rainfall of the year at 278 mm (10.9 in), suggesting that the wet season peaks during these summer months. Overall, July strikes a balance, maintaining the lush landscape while hinting at the dynamic weather patterns characteristic of Nanjing's climate.

July Precipitation Trends in Nanjing

The chart displays monthly precipitation patterns in Nanjing, 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. In Nanjing, July typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec22366073139264171278151983933
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Nanjing

In Nanjing, China, July marks a peak in humidity, maintaining a consistent 85%, similar to the levels seen in the preceding month of June and just a notch below the highest recorded in May. This pattern reflects a broader trend where summer months, particularly from May to August, witness elevated humidity levels, with averages hovering in the low to mid-80s. As the city transitions from the sweaty heat of summer into the more comfortable fall months, humidity begins to taper, dropping to 71% by September. The cyclical nature of humidity in Nanjing illustrates the city's characteristic climate, where each season brings its own unique moisture levels, ultimately fostering a dynamic and lively atmosphere throughout the year.

July Average Humidity in Nanjing

This chart illustrates the average monthly humidity levels in Nanjing, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Nanjing is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%73%79%80%85%81%85%84%72%70%72%75%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Nanjing

In July, Nanjing, China experiences an extremely high UV Index of 13, which persists throughout the summer months, matching the levels recorded in June and August. With a burn time of just 10 minutes, it's crucial for residents and visitors alike to take precautions against potential sun damage. The trend from January to May shows a steady increase in UV intensity, reaching extreme levels from March onwards. As we transition from the cooler months with significant UV exposure, like January's UV Index of 7, individuals must remain vigilant during these peak summer months. Stay informed with updated UV trends and strategies for sun safety by checking Nanjing UV Index.

Maximum UV Index Levels in Nanjing for July

The chart shows the monthly maximum UV Index (UVI) for Nanjing 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. In July, the maximum UV index in Nanjing typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710121213131313121097
Data source: Nanjing 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 Nanjing

In the heart of summer, July in Nanjing, China, shines brightest with an impressive 326 hours of sunshine, marking it as the sunniest month of the year. This vibrant increase from the previous months emphasizes a clear upward trend as the region transitions from spring's 268 hours in April to the peak of summer. Following July, the sunshine slightly tapers in August to 299 hours, yet remains notably abundant. This seasonal surge illustrates Nanjing's warm embrace of summer, making July not only a time of abundant sunlight but also an ideal period for outdoor activities and celebrations. The consistent rise from January's modest 214 hours to the summer's heights captures the essence of Nanjing's sunny allure, highlighting the gradual yet steady shift towards longer, sun-drenched days.

Monthly Sunshine Duration in Nanjing: July Highlighted

The July sunshine duration represents the total number of hours Nanjing 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.
JanFebMarAprMayJunJulAugSepOctNovDec214h256h270h268h290h260h326h299h290h279h260h264h
Data source: Nanjing July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nanjing During July

In Nanjing, China, the likelihood of sunny weather tells an intriguing story throughout the year. While January kicks off with a robust 69% chance of sunshine, this figure steadily declines to a low of just 9% by June. July, positioned just after this gloomy spell, shows a slight rebound with a 28% chance of sun, offering a glimmer of hope for outdoor activities. However, it remains a stark contrast to the earlier months, highlighting that summer in Nanjing often brings more clouds than clear skies. As the season progresses into August, the probability further dips to 18%, suggesting that for those planning summer outings in Nanjing, it's wise to keep an umbrella close at hand!

Percentage of Sunny Days in July in Nanjing

The chart illustrates the percentage of sunny days in Nanjing 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 Nanjing experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec69%61%48%44%28%9%28%18%50%36%68%53%
Data source: Nanjing July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nanjing in July

In Nanjing, China, the month of July experiences a peak in daylight duration, matching the previous months of June with an abundant 13 hours of sunshine. This consistent sunshine highlights a summer where days remain bright and elongated, perfect for outdoor activities. As the year progresses, daylight gradually recedes, with August already showing a slight decline to 12 hours. Notably, the transition from summer to autumn is marked by this gradual decrease, so while July basks in the fullness of light, the subsequent months hint at a return to shorter days as the cooler seasons approach.

Average Daylight Hours in Nanjing for July

The chart illustrates the variation in daylight duration in Nanjing throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 51m11h 21m12h12h 41m13h 15m13h 31m13h 23m12h 53m12h 15m11h 35m11h10h 43m
Data source: Nanjing daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Nanjing

In July, Nanjing experiences a notable shift in its wind patterns, with an average wind speed of 2.2 m/s (5 mph), making it one of the calmer months of the year. This gentle breeze contrasts with the slightly higher speeds of earlier months, such as January through May, where winds hover around 2.8 m/s (6 mph). The consistent decline in wind speed continues into August, hinting at the stillness that often accompanies the summer heat. As the seasons transition towards autumn, one can expect a gradual increase in wind speeds once again, with October bringing an invigorating 3.1 m/s (7 mph). Overall, July’s lighter winds offer a serene atmosphere, perfectly embodying the warmth and tranquility of summer in Nanjing.

Average July Wind Speed in Nanjing

The chart displays monthly wind speed patterns in Nanjing, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.82.42.52.72.82.62.2 m/s2.01.83.12.92.9
Data source: Nanjing July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Nanjing Compares to Other Months

Weather in Nanjing varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Nanjing, focusing on differences in temperature, rainfall, humidity, and UV levels.

In July, Nanjing experiences a distinctly tropical climate, with temperatures ranging from a minimum of 25°C (76°F) to a maximum of 37°C (99°F) and an average of 29°C (85°F). The month is characterized by high humidity at 85% and significant rainfall, with 171 mm (6.7 in) spread over 23 days. In stark contrast, January sees much cooler temperatures, with a minimum of 2°C (37°F), an average of 16°C (60°F), and a maximum of 28°C (82°F). Precipitation drops dramatically to just 22 mm (0.9 in) over 3 days, and humidity levels also decrease to 71%. For more detailed information on January weather, visit Nanjing weather in January.

July and February present stark contrasts in weather. In July, temperatures soar with a minimum of 25°C (76°F) and an average of 29°C (85°F), reaching a sweltering maximum of 37°C (99°F). Additionally, this month experiences high humidity at 85% and considerable rainfall, with precipitation totaling 171 mm (6.7 in) over 23 days. In contrast, February offers much cooler weather, with a minimum temperature of 4°C (39°F) and an average of 16°C (61°F), peaking at 28°C (83°F). Precipitation in February is significantly lower, at just 36 mm (1.4 in) over 5 days, along with a humidity level of 73%. For a detailed look at February's weather, visit Nanjing weather in February.

In Nanjing, the weather in July is significantly warmer and more humid compared to March. July boasts average temperatures ranging from a minimum of 25°C (76°F) to a scorching maximum of 37°C (99°F), along with a high humidity level of 85%. There is also considerable rainfall, with 171 mm (6.7 in) over 23 days. In contrast, March offers a milder climate, with temperatures varying from 8°C (47°F) at night to a comfortable 32°C (90°F) during the day. The precipitation is much lower at 60 mm (2.4 in) over just 9 days, and the humidity sits at a relatively comfortable 79%. For more detailed information, check out Nanjing weather in March.

In comparing the weather of July and April, it's clear that July is significantly hotter and more humid. July experiences average temperatures reaching 29°C (85°F), peaking at a scorching 37°C (99°F), while April's temperatures are milder, with an average of 22°C (72°F) and a maximum of only 33°C (91°F). Additionally, July is marked by higher precipitation, totaling 171 mm (6.7 in) over 23 days, compared to April's 73 mm (2.9 in) across just 10 days. Despite July's greater rainfall, April's humidity at 80% is noticeably lower than the steamy 85% experienced in July. For more detailed insights on April's weather, you can check Nanjing weather in April.

In comparison to May, July experiences higher average temperatures, with a minimum of 25°C (76°F) and an average of 29°C (85°F) compared to May's minimum of 15°C (60°F) and an average of 26°C (79°F). However, both months see high maximum temperatures, with July peaking at 37°C (99°F) and May reaching up to 38°C (100°F). Precipitation in July is slightly higher at 171 mm (6.7 in) over 23 days, whereas May has 139 mm (5.5 in) of rain over 16 days. Interestingly, while both months have the same humidity level of 85%, the overall weather pattern in July tends to be more persistent with rain. For more detailed information, you can check Nanjing weather in May.

In comparing the weather of July and June, July tends to be slightly warmer, with average temperatures reaching 29°C (85°F) compared to June's 28°C (83°F). July also features higher maximum temperatures, peaking at 37°C (99°F), while June's maximum is 36°C (97°F). However, June experiences significantly more rainfall, with 264 mm (10.4 in) of precipitation over 24 days, compared to July's 171 mm (6.7 in) over 23 days. Humidity levels remain relatively high in both months, with July at 85% and June at 81%. For more details on June's weather, you can visit Nanjing weather in June.

In July, the weather is characterized by a minimum temperature of 25°C (76°F) and an average of 29°C (85°F), along with a high of 37°C (99°F). The month experiences significant rainfall totaling 171 mm (6.7 in) over 23 days, accompanied by high humidity levels at 85%. In comparison, August sees slightly lower minimum temperatures at 24°C (76°F) and maintains a similar average temperature of 29°C (84°F), peaking at 37°C (99°F) as well. However, August is markedly wetter, with precipitation rising to 278 mm (10.9 in) over 25 days, and humidity remains relatively high at 83%. For a more in-depth look at the specifics of August weather, you can visit Nanjing weather in August.

In July, the weather is significantly warmer, with minimum temperatures around 25°C (76°F) and maximum temperatures reaching up to 37°C (99°F). The month experiences considerable rainfall, with 171 mm (6.7 in) of precipitation spread over 23 days, contributing to a high humidity level of 85%. In contrast, September sees slightly cooler temperatures, with lows of 21°C (70°F) and highs peaking at 35°C (96°F). This month also has less rainfall, totaling 151 mm (5.9 in) over 18 days, and features lower humidity at 71%. For a detailed look at what to expect, check out Nanjing weather in September.

July and October present contrasting weather patterns. In July, temperatures soar with a minimum of 25°C (76°F) and an average high of 37°C (99°F), accompanied by high humidity at 85% and significant rainfall of 171 mm (6.7 in) over 23 days. In contrast, October features milder temperatures, with a cooler minimum of 14°C (58°F) and an average of 25°C (77°F), and maximums reaching up to 35°C (96°F). Precipitation decreases considerably to 98 mm (3.9 in) over just 7 days, alongside a drop in humidity to 70%. For more details on the weather during this month, check out Nanjing weather in October.

In July, the weather is characterized by high temperatures, with lows around 25°C (76°F) and averages peaking at 29°C (85°F), occasionally reaching a scorching 37°C (99°F). This month also witnesses considerable rainfall, with 171 mm (6.7 in) spread over 23 days, coupled with high humidity levels of 85%. In contrast, November offers a much milder climate, where the minimum temperature drops to 12°C (53°F), and the average settles at 21°C (70°F), with maximum temperatures reaching 31°C (88°F). Precipitation in November is significantly lower at 39 mm (1.5 in), occurring over just 3 days, and humidity also decreases to 72%. For a detailed insight into the November climate, you can refer to Nanjing weather in November.

In July, the weather can be quite intense, with temperatures soaring from a minimum of 25°C (76°F) to a blistering maximum of 37°C (99°F) and an average of 29°C (85°F). This month witnesses significant rainfall, accumulating 171 mm (6.7 in), spread over 23 days, while humidity levels remain high at 85%. In stark contrast, December offers a much milder climate, characterized by a minimum temperature of 7°C (45°F) and an average of 17°C (63°F), peaking at 29°C (84°F). The precipitation is considerably less, with only 33 mm (1.3 in) recorded over just 4 days, and humidity at a lower 75%. For more detailed insights on December weather, you can check Nanjing weather in December.

Compare Nanjing's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Nanjing

In July, Nanjing experiences a notable shift in weather, characterized by sweltering temperatures and high humidity that can be overwhelming. The city basks in the warmth, with maximum temperatures that often breach the 30s, while the average heat hovers around a steamy 29°C. Unlike other months, July sees a significant increase in precipitation with frequent rain showers, making it one of the wettest times of the year. As the humidity soars to around 85%, prepare for a muggy atmosphere that accentuates the heat. If you're planning a visit during this vibrant yet challenging month, it's essential to stay hydrated and seek shade often. For a more detailed understanding of Nanjing's weather throughout the year, be sure to check out the full Nanjing Climate guide.