July Weather in Nantong, China

Last updated: August 21, 2025

July in Nantong, China, brings a sweltering climate characterized by maximum temperatures reaching up to 40°C (105°F) and an average of 27°C (82°F), providing a warm backdrop for the summer season. Despite the heat, the city experiences significant precipitation, with 149 mm (5.9 in) of rain spread over 17 days, contributing to high humidity levels of 85%. Visitors should prepare for a mix of sunny days and brief, yet frequent, rain showers while exploring the vibrant city during this warm summer month.

July Temperature in Nantong

In July, Nantong experiences the peak of summer, where temperatures soar, showcasing a notable shift from the cooler months. The minimum temperature begins at a comfortable 19°C (67°F), but it doesn't take long for the day to heat up, with average highs reaching an impressive 27°C (82°F). As the sun blazes, the city can experience maximum temperatures climbing to a sweltering 40°C (105°F). This trend of increasing warmth is a fitting crescendo following the gradual rise seen in the previous months, indicating that July is not just the warmest month in Nantong, but also a time when the summer heat truly captivates, inviting locals and visitors alike to embrace various outdoor activities and festivities under the sun.

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

The chart illustrates July temperature patterns in Nantong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nantong, 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).
JanFebMarAprMayJunJulAugSepOctNovDec454857647075818273635547
Data source: Temperature data for Nantong 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 Nantong

In July, Nantong experiences a significant average precipitation of 149 mm (5.9 in), showcasing a moderate decline from June's higher total of 181 mm (7.1 in). The city sees rain across 17 days during the month, contributing to the region's lush summer greenery. This rainy trend, following a particularly wet June and preceding the slightly drier conditions anticipated in August with 146 mm (5.7 in), highlights the typical summer pattern of fluctuating rainfall. July's precipitation continues to support the growing season while offering a refreshing respite from the summer heat, making it an essential month in Nantong's annual climate cycle.

July Precipitation Trends in Nantong

The chart displays monthly precipitation patterns in Nantong, 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 Nantong, July typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4647971121741811491461741306847
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Nantong

In Nantong, China, July brings a peak in humidity, maintaining a consistent 85%—a level seen since June. This marks the transition into the hottest months of summer, where the air feels almost tangible with moisture. Notably, the humidity gradually increases from January’s moderate 72%, steadily rising to its summer highs. This trend continues through August, when humidity reaches its zenith at 87%, creating a muggy atmosphere that characterizes the region's summer season. As the year progresses, a decline follows, illustrating how Nantong's climate is shaped by its humid summer months before dipping back to more comfortable levels in the fall.

July Average Humidity in Nantong

This chart illustrates the average monthly humidity levels in Nantong, 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 Nantong is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%76%80%77%82%85%85%87%84%81%86%81%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Nantong

In July, Nantong, China, experiences an intense UV Index of 12, placing it in the extreme exposure category with a rapid burn time of just 10 minutes. This trend of escalating UV levels begins in January with a moderate index of 5, gradually climbing to an alarming peak from April through August, where the index consistently hits 12. As summer reaches its height, sun safety becomes paramount, reminding residents and visitors alike to take precautions against harmful UV radiation. Following this month, the UV Index begins to taper off in September and October, reverting to very high levels but providing a bit of relief as temperatures cool. Stay informed and prepared for your sun exposure through the summer by visiting Nantong UV Index.

Maximum UV Index Levels in Nantong for July

The chart shows the monthly maximum UV Index (UVI) for Nantong 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 Nantong typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec57911111212129975
Data source: Nantong 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 Nantong

In Nantong, China, July shines as the pinnacle of sunlight, offering an impressive 304 hours of radiant brightness. This month not only represents a significant leap from the previous months but also showcases a delightful trend of increasing daylight as the year progresses. Starting from a mere 96 hours in January, the sunshine hours steadily rise, with each month building on the last, peaking in July and August at 312 hours. This extended sunlight captivates residents and visitors alike, creating vibrant summer days that are perfect for outdoor activities. As the year transitions into fall, the sunlight dwindles, dipping to 219 hours in September, yet the lingering warmth of July’s glory serves as a cherished highlight in Nantong's annual climate.

Monthly Sunshine Duration in Nantong: July Highlighted

The July sunshine duration represents the total number of hours Nantong 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.
JanFebMarAprMayJunJulAugSepOctNovDec96h149h179h205h242h252h304h312h219h138h145h119h
Data source: Nantong July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nantong During July

In Nantong, China, July stands out as a noteworthy month for sunshine, with a 30% chance of clear skies. This uptick in sunny days is a refreshing contrast to the preceding months, particularly June and April, which both harbor much lower probabilities at just 12%. Observing the broader trends throughout the year, it’s clear that summer brings a welcome increase in sunshine, as July's 30% chance is one of the higher rates compared to the early months, where the chances hover around 25% to 29%. As August approaches, the likelihood of sunny weather slightly dips to 26%, yet still maintains a sunnier disposition than earlier in the year. This suggests that, for those looking to enjoy the outdoors in Nantong, July is the optimal time to bask in the sun.

Percentage of Sunny Days in July in Nantong

The chart illustrates the percentage of sunny days in Nantong 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 Nantong experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%28%25%13%17%12%30%26%38%20%23%21%
Data source: Nantong July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nantong in July

In Nantong, China, the month of July showcases a continued stretch of delightful summer daylight, boasting around 13 hours of bright sunshine each day. This duration mirrors the longer days of June and August, reflecting a seamless transition through the peak of summer. As spring shifts into summer, daylight duration gradually increases from 10 hours in January to a peak of 13 hours from May through August, before gently tapering off in September. This trend highlights a distinct seasonal rhythm in Nantong, with the inviting sunlight of July providing ample opportunity for outdoor activities and enjoying the warm weather.

Average Daylight Hours in Nantong for July

The chart illustrates the variation in daylight duration in Nantong throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 30m11h 9m11h 59m12h 51m13h 35m13h 56m13h 45m13h 7m12h 18m11h 26m10h 41m10h 19m
Data source: Nantong daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Nantong

In July, Nantong’s mild breeze lightly dances across the landscape, with an average wind speed of 1.5 m/s (3 mph), mirroring the gentle winds of June and August. This consistency suggests a stable maritime climate, ideal for outdoor activities during the summer months. As the summer reaches its zenith, Nantong experiences slightly higher winds in the preceding months of March and September, hinting at a subtle increase in ventilation as the seasons transition. Overall, July's winds contribute to a soothing environment, perfect for enjoying the natural beauty of this vibrant coastal city.

Average July Wind Speed in Nantong

The chart displays monthly wind speed patterns in Nantong, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.41.51.61.41.31.51.5 m/s1.51.91.51.21.3
Data source: Nantong July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Nantong Compares to Other Months

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

July and January present strikingly contrasting weather conditions. In July, temperatures soar, with averages around 27°C (82°F) and highs reaching up to 40°C (105°F), accompanied by high humidity levels of 85% and significant rainfall of 149 mm over 17 days. In contrast, January's temperatures plunge, featuring an average of just 7°C (45°F) with minimums dropping to -4°C (26°F) and maximums peaking at 17°C (62°F). Additionally, January sees far less precipitation, totaling only 46 mm over 12 days and lower humidity at 72%. For more detailed insights on January weather, visit Nantong weather in January.

When comparing the weather in July and February, the differences are striking. July experiences much warmer temperatures, with a minimum of 19°C (67°F) and an average of 27°C (82°F), peaking at a scorching 40°C (105°F). In contrast, February brings a chillier climate, with temperatures ranging from a minimum of -1°C (31°F) to a pleasant maximum of 25°C (77°F), averaging just 9°C (48°F). Precipitation in July is notably higher, totaling 149 mm (5.9 in) over 17 days, while February sees a lesser amount of 47 mm (1.8 in) across 13 days. Additionally, humidity levels in July are significantly high at 85%, compared to February's moderate 76%. For more specific details on February weather in this region, you can visit Nantong weather in February.

In July, the weather is typically much warmer and more humid than in March, with average temperatures soaring to 27°C (82°F) and maximums reaching a sweltering 40°C (105°F). This month sees a substantial amount of rainfall as well, totaling 149 mm (5.9 in) over 17 days. In contrast, March presents a milder climate, with average temperatures around 14°C (58°F) and maximums peaking at 30°C (87°F), accompanied by less precipitation at 97 mm (3.8 in) over the same number of days. The humidity is slightly lower in March at 80%, making it feel less oppressive than the humid July heat. For more detailed insights, check out Nantong weather in March.

The weather in July is significantly warmer than in April, with average temperatures soaring to 27°C (82°F) compared to April's milder 18°C (65°F). July also experiences extreme highs, reaching up to 40°C (105°F), while April's maximum temperature is a much cooler 33°C (92°F). Rainfall is more frequent in July, with precipitation occurring on 17 days and totaling 149 mm (5.9 in), whereas April sees slightly less rainfall at 112 mm (4.4 in) over 16 days. Additionally, July has a higher humidity level at 85%, compared to April's 77%, making July feel more oppressive. For more insights on April's weather, you can visit Nantong weather in April.

When comparing the weather in July and May, we see distinct differences in temperature and precipitation. July is significantly warmer, with average temperatures reaching 27°C (82°F) and highs peaking at 40°C (105°F), compared to May's average of 21°C (70°F) and a maximum of 35°C (96°F). However, while July experiences 149 mm (5.9 in) of rainfall over 17 days, May sees slightly higher precipitation at 174 mm (6.8 in) across 19 days. Humidity is notably high in both months, with July at 85% and May at 82%. For a closer look at May's weather specifics, you can refer to Nantong weather in May.

In comparing the weather between June and July, July tends to be warmer overall, with an average temperature of 27°C (82°F) compared to June's 24°C (75°F). The maximum temperature in July can reach as high as 40°C (105°F), significantly higher than June's peak of 35°C (95°F). Both months experience high humidity levels of 85%, but July sees slightly less precipitation, totaling 149 mm (5.9 in) over 17 rainy days compared to June's 181 mm (7.1 in) over 18 days. For more detailed information, you can check Nantong weather in June.

In comparing the weather of July and August, both months exhibit high temperatures with July having a minimum of 19°C (67°F) and an average of 27°C (82°F), while August features slightly cooler temperatures with a minimum of 18°C (65°F) and an average of 28°C (83°F). The maximum temperature is consistent, peaking at 40°C (105°F) in July and 40°C (103°F) in August. Precipitation is similar in both months, with July receiving 149 mm (5.9 in) over 17 days, and August seeing a slight decrease with 146 mm (5.7 in) over 14 days. Additionally, humidity is slightly higher in August at 87%, compared to 85% in July. For a more detailed look at August's weather, visit Nantong weather in August.

In July, the weather is characterized by a hot average temperature of 27°C (82°F), reaching peaks of up to 40°C (105°F), with high humidity levels at 85%. Rainfall is common, with 149 mm (5.9 inches) of precipitation spread over 17 days. In contrast, September sees a slight drop in temperatures, with average lows of 15°C (59°F) and highs of 36°C (96°F), leading to a cooler average of 23°C (74°F). Interestingly, September experiences even more rainfall, totaling 174 mm (6.9 inches) over 18 days, while humidity remains relatively stable at 84%. This shift from the sweltering heat of July to the milder conditions of September is notable. For a more detailed look into the weather characteristics of September, visit Nantong weather in September.

July and October present distinctly different weather patterns. In July, temperatures are significantly higher, with minimums around 19°C (67°F) and averages peaking at 27°C (82°F), occasionally reaching a scorching maximum of 40°C (105°F). The month also sees considerable rainfall, with 149 mm (5.9 in) distributed over 17 days, and high humidity levels at 85%. In contrast, October features cooler temperatures, where the minimum dips to 8°C (46°F) and averages settle at a mild 17°C (63°F), with highs up to 35°C (94°F). Although precipitation remains notable at 130 mm (5.1 in), it falls over more days—19 in total—along with slightly lower humidity of 81%. For a detailed look at what to expect, you can check Nantong weather in October.

In July, the weather is characterized by high temperatures, with a minimum of 19°C (67°F), an average of 27°C (82°F), and a scorching maximum of 40°C (105°F). This month also experiences substantial rainfall, averaging 149 mm (5.9 in) over 17 days, combined with high humidity levels of 85%. In contrast, November brings significantly cooler temperatures, with a minimum of 4°C (39°F), an average of 13°C (55°F), and a maximum of 27°C (81°F). Precipitation decreases to 68 mm (2.7 in) over 12 days, while humidity remains high at 86%. For more information, you can check Nantong weather in November. Overall, July feels much hotter and wetter compared to the cooler and drier November.

The weather in July and December presents a stark contrast, reflecting the seasonal extremes. July boasts a warm climate, with temperatures ranging from a minimum of 19°C (67°F) to a sweltering maximum of 40°C (105°F), and an average temperature of 27°C (82°F). This month also sees significant precipitation, with 149 mm (5.9 in) spread over 17 days, coupled with high humidity levels at 85%. In contrast, December experiences much cooler conditions, with temperatures ranging from a chilly -1°C (31°F) to a maximum of 18°C (64°F), and an average of only 8°C (47°F). Precipitation drops to 47 mm (1.8 in) over 13 days, while humidity remains relatively high at 81%. For a detailed look at December weather, you can check Nantong weather in December.

Compare Nantong's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Nantong

As July unfolds in Nantong, the city experiences a notable shift in weather patterns, marked by warm temperatures that often soar to extreme highs. While the average thermometers settle around a comfortable level, the humidity climbs, creating a muggy atmosphere that considerably influences outdoor activities. Precipitation is more frequent this month, with rain gracing about half of the days, adding to the overall summer texture. This combination of warmth and moisture sets July apart from other months, making it a time when residents and visitors alike should prepare for both the heat and the hydration. For a more comprehensive overview of Nantong's climate across the year, explore Nantong Climate.