October Weather in Nanjing, China

Last updated: August 21, 2025

In October, Nanjing experiences a diverse range of temperatures, with maxima reaching up to 35°C (96°F) and a comfortable average of 25°C (77°F). The nights can cool down to a refreshing 14°C (58°F), making for pleasant evenings. While the month brings an average of 98 mm (3.9 in) of rainfall over about 7 days, the air remains humid at 70%, creating a vibrant atmosphere. This mix of warmth and moisture not only enhances the beauty of the city’s autumn foliage but also invites visitors to explore its rich history and culture.

October Temperature in Nanjing

As October unfolds in Nanjing, China, the city experiences a delightful shift in temperatures, signaling the arrival of autumn. With minimums averaging around 14°C (58°F) and highs reaching up to 35°C (96°F), the month is marked by a lovely contrast of warm days and cooler nights. The average temperature settles at a comfortable 25°C (77°F), offering a perfect backdrop for outdoor activities and sightseeing. Compared to the preceding summer months, where temperatures soared above 37°C (99°F), October brings a welcomed respite, making it an ideal time to explore the rich historical and cultural offerings of this vibrant city as it transitions into the cooler months ahead.

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

The chart illustrates October 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, October 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.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Nanjing

October in Nanjing brings a noticeable shift in precipitation, with 98 mm (or 3.9 inches) of rain spread over about 7 days. This marks a decrease compared to the previous months, particularly the significant rainfall of August, which recorded 278 mm over 25 days. The arrival of autumn ushers in a more moderate climate, as October sees less frequent showers and a drop in humidity. Following a wet September, where 151 mm of rainfall occurred over 18 days, the precipitation in October indicates a steady trend toward drier conditions, paving the way for the cool and crisp days of November. Such patterns highlight the transition from the lingering summer rains to the more tempered atmosphere of fall in this vibrant city.

October Precipitation Trends in Nanjing

The chart displays monthly precipitation patterns in Nanjing, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Nanjing, October typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec22366073139264171278151983933
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Nanjing

As October arrives in Nanjing, humidity levels dip to 70%, providing a slight respite after the sultry summer months. This decrease follows a trend observed during the fall, as humidity typically retreats from its summer peak of 85% in July and August. Throughout the year, Nanjing experiences a gradual rise in humidity starting from 71% in January and reaching its zenith in May at 85%. While October's humidity is lower than the sweltering summer average, it remains comfortably moderate, setting the stage for the cooler, more refreshing months ahead. In the spectrum of Nanjing's climate, October serves as a gentle transition towards the drier and cooler winter months.

October Average Humidity in Nanjing

This chart illustrates the average monthly humidity levels in Nanjing, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, 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 October generated using information from the Copernicus Climate Change Service.

October UV Index in Nanjing

In October, Nanjing, China experiences a UV Index of 10, which falls into the very high exposure category. As the month progresses, residents and visitors alike should be mindful of their sun exposure, with a burn time of only 15 minutes. This trend reflects a gradual decrease from the extreme levels of summer, where the UV Index peaked at 13 from May through September. As autumn sets in, the UV Index begins to drop, but it remains significant, highlighting the importance of sun protection even as temperatures cool. For more information on daily UV levels, check out the Nanjing UV Index.

Maximum UV Index Levels in Nanjing for October

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

October Sunshine in Nanjing

October in Nanjing shines brightly with 279 hours of sunlight, marking a slight dip from the sunniest months of July and August, which basked in over 320 hours each. This fall month continues the trend of generous daylight that started in spring, with sunlight gradually decreasing as winter approaches. After a vibrant 290 hours in September, October retains a healthy amount of sunshine, making it a delightful time for outdoor activities. The gradual transition from summer's peak luminosity to the softer light of late fall reveals Nanjing's scenic beauty, inviting residents and visitors alike to savor the crisp autumn air under a golden sun.

Monthly Sunshine Duration in Nanjing: October Highlighted

The October sunshine duration represents the total number of hours Nanjing experiences direct sunlight during the month of October, excluding cloudy or obstructed periods. This chart compares the sunshine duration of October with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec214h256h270h268h290h260h326h299h290h279h260h264h
Data source: Nanjing October Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nanjing During October

In Nanjing, China, the likelihood of sunny weather undergoes a striking transformation throughout the year. Kicking off with a strong 69% chance of sun in January, the sunny days gradually dwindle as we move into spring, hitting a low of 44% in April. Come summer, the skies become less forgiving, with a notably low 9% chance of sunshine in June. Although September sees a rebound to 50%, October presents a further decline with only a 36% chance of clear skies, marking a transitional month as autumn deepens. Interestingly, the city welcomes back the sun as it heads into the colder months, with November soaring back to 68%. This trend highlights the ebb and flow of sunlight in Nanjing, making October a month where the sun's presence is somewhat elusive.

Percentage of Sunny Days in October in Nanjing

The chart illustrates the percentage of sunny days in Nanjing throughout the year, with October 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 October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nanjing in October

In Nanjing, China, October marks a significant shift in daylight hours as the city transitions from the vibrant summer months to the cooler autumn days. With 11 hours of daylight, October shares a similar duration with both November and January, underscoring a gradual decrease in sunlight as the year progresses. The trend of increasing daylight begins in January with just 10 hours, peaking in May and June at 13 hours, before gradually tapering off during the fall months. The consistent pattern of fluctuating daylight not only enhances the beauty of Nanjing's scenery but also invites residents and visitors to embrace the changing rhythms of nature as the season unfolds.

Average Daylight Hours in Nanjing for October

The chart illustrates the variation in daylight duration in Nanjing throughout the year, with October 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.

October Winds in Nanjing

As October arrives in Nanjing, the city's atmosphere transforms, accompanied by a notable increase in wind speed. Averaging 3.1 m/s (7 mph), October marks a refreshing shift from the gentle breezes of previous months, which have been consistently mild, with September's winds tapering down to just 1.8 m/s (4 mph). This invigorating gustiness not only heralds the arrival of autumn but also foreshadows the cooler months ahead. The enhanced wind speed brings a crispness to the air, making it the perfect time to explore Nanjing's scenic parks, where the rustling leaves dance in the breeze and the vibrant fall colors come alive. As the year progresses, Nanjing's winds continue to offer a dynamic backdrop, reminding us of nature’s continuous ebb and flow.

Average October Wind Speed in Nanjing

The chart displays monthly wind speed patterns in Nanjing, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.82.42.52.72.82.62.22.01.83.1 m/s2.92.9
Data source: Nanjing October wind data, generated using information from the Copernicus Climate Change Service.

How October 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 October’s weather to other months in Nanjing, focusing on differences in temperature, rainfall, humidity, and UV levels.

October and January present contrasting weather conditions. In October, temperatures range from a minimum of 14°C (58°F) to a maximum of 35°C (96°F), with an average of 25°C (77°F). This month experiences significant precipitation of 98 mm (3.9 in) over approximately 7 days, contributing to the high humidity of around 70%. In 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). The rainfall is considerably less at 22 mm (0.9 in) spread over just 3 days, while the humidity remains slightly higher at 71%. For more detailed information, you can visit Nanjing weather in January.

In comparing the weather between October and February, we see notable differences. October features warmer temperatures, with a minimum of 14°C (58°F) and an average of 25°C (77°F), reaching as high as 35°C (96°F). This month also experiences more precipitation, totaling 98 mm (3.9 in) over about 7 days, accompanied by a humidity level of 70%. In contrast, February is much cooler, with temperatures ranging from a minimum of 4°C (39°F) to an average of 16°C (61°F) and a maximum of 28°C (83°F). Precipitation is significantly lower at 36 mm (1.4 in) over 5 days, and humidity rises slightly to 73%. For more detailed information about February weather, you can visit Nanjing weather in February.

In October, temperatures range from a minimum of 14°C (58°F) to a maximum of 35°C (96°F), with an average of 25°C (77°F). This month experiences a total precipitation of 98 mm (3.9 in) over approximately 7 days, contributing to a humidity level of 70%. In contrast, March sees cooler conditions, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 32°C (90°F) and an average of 19°C (67°F). The precipitation in March is lower, at 60 mm (2.4 in) over about 9 days, and the humidity is slightly higher at 79%. Overall, October tends to be warmer and wetter, while March offers a milder climate with less rainfall. For more details on the weather specifics of March, check out Nanjing weather in March.

When comparing the weather in October and April, October tends to be warmer, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 35°C (96°F), while April features slightly cooler temperatures, with a minimum of 11°C (53°F) and a maximum of 33°C (91°F). Rainfall is more substantial in October, totaling 98 mm (3.9 in) over 7 days, compared to April's 73 mm (2.9 in) spread over 10 days. Additionally, humidity levels are higher in April at 80%, compared to 70% in October. For more detailed insights, you can visit Nanjing weather in April.

In comparing the weather of October and May, October presents a slightly cooler range of temperatures, with minimums around 14°C (58°F) and maximums reaching 35°C (96°F), contributing to an average of 25°C (77°F). In contrast, May experiences warmer temperatures with minimums at 15°C (60°F) and maximums peaking at 38°C (100°F), leading to an average of 26°C (79°F). While October sees 98 mm (3.9 in) of precipitation over about 7 days, May is significantly wetter with 139 mm (5.5 in) of rain over approximately 16 days, resulting in higher humidity levels of 85% compared to 70% in October. For more detailed insights, you can check Nanjing weather in May.

In comparing the weather of October and June, notable differences emerge in temperature and precipitation. October enjoys a more moderate range, with temperatures averaging around 25°C (77°F) and peaking at 35°C (96°F), while June experiences slightly higher temperatures, averaging 28°C (83°F) and reaching up to 36°C (97°F). However, June is considerably wetter, receiving 264 mm (10.4 in) of rainfall over 24 days compared to October's 98 mm (3.9 in) over just 7 days. Additionally, humidity levels are higher in June at 81%, compared to October's 70%. For more detailed insights, you can check the link on Nanjing weather in June.

When comparing the weather in October and July, it's clear that July is significantly warmer, with average temperatures hovering around 29°C (85°F) and maximums reaching up to 37°C (99°F). In contrast, October enjoys a milder climate, averaging 25°C (77°F) and peaking at 35°C (96°F). However, July experiences higher humidity levels at 85%, compared to October's 70%, making the summer month feel more oppressive. Rainfall is also more frequent in July, with precipitation occurring on 23 days and totaling 171 mm (6.7 in), while October sees precipitation on only 7 days, amounting to 98 mm (3.9 in). For a closer look at July's weather specifics, you can visit Nanjing weather in July.

October and August present notable differences in weather patterns. August tends to be hotter overall, with average temperatures around 29°C (84°F) and maximums reaching 37°C (99°F). In contrast, October offers a more moderate climate, with average temperatures around 25°C (77°F) and maximums peaking at 35°C (96°F). Precipitation also differs significantly; August experiences a substantial 278 mm (10.9 in) over 25 days, while October sees a much lighter 98 mm (3.9 in) across just 7 days, suggesting a drier month ahead. Additionally, humidity is higher in August at 83% compared to October's 70%. For a closer look at what to expect, check out Nanjing weather in August.

In comparing the weather between September and October, we see a notable shift in temperature and precipitation. October offers slightly cooler temperatures, with minimums of 14°C (58°F) and an average of 25°C (77°F), while September maintains higher minimums at 21°C (70°F) and an average of 28°C (82°F). Remarkably, both months peak at the same maximum temperature of 35°C (96°F). However, October experiences less rainfall, with 98 mm (3.9 in) over 7 days compared to September's 151 mm (5.9 in) across 18 days. The humidity remains relatively stable, with October at 70% and September at 71%. For a more detailed look at the weather patterns, you can check Nanjing weather in September.

October and November present distinct shifts in weather patterns. In October, temperatures range from a minimum of 14°C (58°F) to a maximum of 35°C (96°F), with an average of 25°C (77°F). The month experiences more rainfall, totaling 98 mm (3.9 in) over 7 days, accompanied by a humidity level of 70%. In contrast, November sees cooler temperatures, with a minimum of 12°C (53°F), an average of 21°C (70°F), and a maximum of 31°C (88°F). Precipitation decreases significantly to 39 mm (1.5 in) over just 3 days, with humidity nudging slightly higher at 72%. For more information on what to expect weather-wise in November, check out Nanjing weather in November.

October and December present quite a contrast in weather conditions. October boasts warmer temperatures, with a minimum of 14°C (58°F) and highs reaching up to 35°C (96°F), while December cools down significantly, featuring a minimum of 7°C (45°F) and a maximum of 29°C (84°F). Precipitation is more frequent in October, averaging 98 mm (3.9 in) over about seven days, whereas December sees a much lighter rainfall of 33 mm (1.3 in) over just four days. Humidity levels remain relatively high in both months, with October at 70% and December slightly higher at 75%. For more details on December weather, you can check Nanjing weather in December.

Compare Nanjing's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Nanjing

October in Nanjing ushers in a refreshing change from the sweltering summer months, offering a delightful average temperature of 25°C (77°F). Unlike the peak heat of July and August, which can soar to a maximum of 35°C (96°F), October's mild conditions make outdoor activities much more enjoyable. However, with an average humidity of 70% and 98 mm (3.9 in) of rainfall spread over 7 days, it’s wise to keep an umbrella handy. This transitional month gently hints at the cooler weather to come, making it a perfect time for visitors to explore the city's vibrant autumn scenery. For more insights on Nanjing's climate throughout the year, check out Nanjing Climate.