May Weather in Jiangnan, China

Last updated: August 21, 2025

May in Jiangnan, China is characterized by a warm and humid climate, where temperatures can soar to a maximum of 36°C (98°F), with an average hovering around 26°C (80°F) and dipping to a minimum of 16°C (61°F). This month experiences considerable rainfall, accumulating an average of 175 mm (6.9 in) across 20 days, contributing to a humidity level of 74% that envelops the region. As spring bids farewell, the vibrant and lush landscapes of Jiangnan become richly rejuvenated, making it a captivating time for both locals and visitors alike.

May Temperature in Jiangnan

In Jiangnan, China, May heralds the arrival of warmer days, with temperatures reflecting a delightful transition into late spring. The month kicks off with a minimum temperature of 16°C (61°F), and as the days progress, an average high of 36°C (98°F) can be reached, marking a significant rise from the preceding months. As nature awakens, the mild evenings, coupled with daytime warmth averaging 26°C (80°F), create an inviting atmosphere perfect for outdoor activities. As summer approaches in June, the temperature continues to climb, yet May serves as a sweet spot where one can enjoy the blossoming season, making it a lovely time to experience the beauty of Jiangnan.

May Weather in Jiangnan: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Jiangnan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jiangnan, May 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).
JanFebMarAprMayJunJulAugSepOctNovDec586068738083848382746859
Data source: Temperature data for Jiangnan 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.

May Precipitation in Jiangnan

May brings a significant surge in precipitation to Jiangnan, with 175 mm (6.9 in) of rain falling over 20 days. This marks a distinct increase compared to the preceding months, as April recorded 96 mm (3.8 in) over just 15 days. The rainy season is in full swing, leading into June, which typically sees even heavier rainfall. The pattern illustrates a clear transition as spring gives way to summer, highlighting May as a pivotal month where the region's lush landscapes begin to flourish under the abundant moisture. The consistent number of rainy days also emphasizes the persistent, gentle nature of these showers, nurturing the vibrant flora characteristic of the area.

May Precipitation Trends in Jiangnan

The chart displays monthly precipitation patterns in Jiangnan, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Jiangnan, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4160103961752752132641701174048
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Jiangnan

As the calendar turns to May, Jiangnan, China, experiences a notable shift in its climate. With humidity levels rising to 74%, the region transitions into a more tropical atmosphere, reflecting the onset of summer. This increase is particularly striking compared to the cooler months of January through April, where humidity hovered between 56% and 62%. May serves as a bridge to the peak of humidity seen in the following months—June reaches a steamy 80%, escalating further into July at 89%. This pattern highlights May's pivotal role in the gradual transition from the milder spring months to the sweltering summer, setting the stage for the lush, vibrant landscape that defines Jiangnan during these warmer times.

May Average Humidity in Jiangnan

This chart illustrates the average monthly humidity levels in Jiangnan, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Jiangnan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec56%62%62%58%74%80%89%88%72%64%61%63%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Jiangnan

As May arrives in Jiangnan, China, residents and visitors should prepare for an intense increase in sun exposure, with the UV Index soaring to 13, marking a shift into the extreme exposure category. This trend follows a progression from January’s moderate levels of 7 to February’s peak at 10, but May’s numbers signal a critical inflection point where caution is paramount. With a burn time of only 10 minutes, it’s imperative to take protective measures against the sun's harsh rays. This intensity is consistent as the summer months roll in, making sun safety a priority not just in May but through the upcoming months. For more detailed information about the UV Index in Jiangnan, check out Jiangnan UV Index.

Maximum UV Index Levels in Jiangnan for May

The chart shows the monthly maximum UV Index (UVI) for Jiangnan in May, 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 May, the maximum UV index in Jiangnan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111113131313111187
Data source: Jiangnan May 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.

May Sunshine in Jiangnan

In the enchanting region of Jiangnan, China, May stands out as a beacon of sunlight, boasting an impressive 288 hours of sunshine—the highest for the year. This surge contrasts with the more modest totals of earlier months, where January saw only 140 hours. As spring blossoms into summer, sunlight steadily increases, peaking in July at 295 hours. After May, the sun's embrace still warms the region, with June and August following closely behind with 279 hours and 289 hours respectively. The trend highlights Jiangnan's transition into vibrant summer months, where the days stretch longer, inviting both revelry and relaxation under the sun. 🌞

Monthly Sunshine Duration in Jiangnan: May Highlighted

The May sunshine duration represents the total number of hours Jiangnan experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec140h192h155h200h288h279h295h289h282h255h227h228h
Data source: Jiangnan May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Jiangnan During May

In Jiangnan, China, the likelihood of sunny weather sees an intriguing trend as the seasons change. While January and February start off with a respectable chance of sun at 47% and 49%, respectively, the probabilities dip significantly in March and April, plummeting to 20% and 21%. However, May offers a modest recovery with a 32% chance of sunny skies, hinting at the arrival of warmer weather. This uptick is a welcome change before the summer months usher in even more unpredictability, with June dropping to 16% and July slightly climbing to 29%. Overall, May stands as a beacon of hope for sun-seekers amidst a backdrop of fluctuating sunshine throughout the year.

Percentage of Sunny Days in May in Jiangnan

The chart illustrates the percentage of sunny days in Jiangnan throughout the year, with May 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 Jiangnan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec47%49%20%21%32%16%29%15%35%35%40%48%
Data source: Jiangnan May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Jiangnan in May

In Jiangnan, China, daylight duration exhibits a dynamic pattern throughout the year, reflecting the changing seasons and the approach of summer. Beginning with 10 hours of daylight in January, the length of day gradually increases, reaching 13 hours by May, where it remains through June and July—months that embody the peak of summer's brilliance. As the year progresses into late summer and autumn, daylight begins to taper off, reverting to 12 hours in August and subsequently drifting down to 11 hours by October and November. Finally, the cycle returns to its starting point with 10 hours in December. This rhythmic fluctuation in daylight not only signals the seasons but also invites residents of Jiangnan to embrace the vibrant changes that each period brings.

Average Daylight Hours in Jiangnan for May

The chart illustrates the variation in daylight duration in Jiangnan throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 53m11h 22m12h 1m12h 40m13h 13m13h 29m13h 21m12h 52m12h 15m11h 35m11h 2m10h 44m
Data source: Jiangnan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Jiangnan

In May, Jiangnan experiences a gentle uptick in average wind speed, settling at 3.1 m/s (7 mph), which is a noticeable increase compared to the preceding months. This shift marks a trend of increasingly breezy conditions as spring transitions towards early summer, setting the stage for vibrant blossoms and lively outdoor activities. Notably, these pleasing winds remain consistent through October, peaking at 3.3 m/s (7 mph) in the fall before tapering off in the chillier months. As the warmer seasons approach, the breeze becomes a welcome companion, enhancing the charming atmosphere of Jiangnan's picturesque landscapes.

Average May Wind Speed in Jiangnan

The chart displays monthly wind speed patterns in Jiangnan, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.62.53.02.83.1 m/s2.92.42.51.73.32.62.4
Data source: Jiangnan May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Jiangnan Compares to Other Months

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

May and January exhibit striking contrasts in weather. In May, temperatures soar with a minimum of 16°C (61°F) and an average high of 26°C (80°F), occasionally reaching up to a scorching 36°C (98°F). The month is also quite rainy, with 175 mm (6.9 in) of precipitation spread over 20 days, contributing to a high humidity level of 74%. In contrast, January offers cooler temperatures, with a low of 4°C (39°F) and an average high of 14°C (58°F), peaking at 27°C (82°F). The precipitation in January is significantly lower at 41 mm (1.6 in), occurring over just 7 days, along with a more comfortable humidity of 56%. For more details on January's climate, visit Jiangnan weather in January.

When comparing the weather in May and February, it's evident that May is significantly warmer and wetter. In May, temperatures range from a minimum of 16°C (61°F) to a scorching maximum of 36°C (98°F), with an average of 26°C (80°F). In contrast, February experiences much cooler weather, with temperatures ranging from 4°C (40°F) to a maximum of 29°C (85°F) and an average of 15°C (60°F). Additionally, May sees a substantial increase in precipitation, totaling 175 mm (6.9 in) over 20 days, compared to only 60 mm (2.4 in) over 8 days in February. The humidity is also higher in May at 74% versus 62% in February, contributing to a more tropical feel. For more detailed information, you can check Jiangnan weather in February.

In comparing the weather between March and May, we see a noticeable difference in temperature and humidity. March has a more temperate climate with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 31°C (89°F), while May experiences much warmer temperatures, with a minimum of 16°C (61°F) and a peak of 36°C (98°F). Additionally, May tends to be more humid, with humidity levels averaging 74% compared to March's 62%. Precipitation is also more prevalent in May, where it rains for about 20 days resulting in 175 mm (6.9 in) of rainfall, while March sees a total of 103 mm (4.1 in) over 18 days. For more details, you can check out Jiangnan weather in March.

In comparing the weather from April to May, there is a noticeable increase in temperatures and humidity levels. April sees a minimum temperature of 11°C (52°F) and an average of 23°C (73°F), with a maximum reaching 36°C (97°F). By May, the minimum warms to 16°C (61°F) and the average boosts to 26°C (80°F), while maximum temperatures remain the same at 36°C (98°F). Additionally, May experiences significantly more rainfall, with 175 mm (6.9 in) over 20 days compared to April's 96 mm (3.8 in) over 15 days. This shift leads to a rise in humidity, from 58% in April to 74% in May. For more detailed information about April's weather patterns, visit Jiangnan weather in April.

May and June exhibit noticeable differences in weather patterns. In May, temperatures range from a minimum of 16°C (61°F) to a maximum of 36°C (98°F), with an average of 26°C (80°F). The month experiences significant precipitation of 175 mm (6.9 in) over 20 days, accompanied by a humidity level of 74%. In contrast, June sees warmer conditions, with temperatures starting at a minimum of 20°C (68°F) and reaching up to 37°C (99°F), averaging 29°C (84°F). This month is also wetter, with total precipitation increasing to 275 mm (10.8 in) over 23 days and a slightly higher humidity of 80%. For a closer look at the weather specific to this region, check out Jiangnan weather in June.

May and July exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 16°C (61°F) to a maximum of 36°C (98°F), with an average of 26°C (80°F). The month experiences significant rainfall, totaling 175 mm (6.9 in) over approximately 20 days and a humidity level of 74%.

In contrast, July is warmer, with minimum temperatures around 24°C (75°F) and maximums reaching 38°C (100°F), leading to a higher average of 29°C (85°F). Rainfall increases to 213 mm (8.4 in) over about 23 days, and humidity rises to 89%, creating a much more sultry atmosphere. For more detailed information about July's weather, you can visit Jiangnan weather in July.

In comparing the weather between May and August, it's evident that August tends to be warmer and more humid. May typically sees temperatures ranging from a minimum of 16°C (61°F) to a maximum of 36°C (98°F), with an average temperature of 26°C (80°F). It experiences about 175 mm (6.9 in) of precipitation over 20 days, contributing to a humidity level of 74%. In contrast, August records higher temperatures with a minimum of 24°C (75°F) and a maximum of 37°C (99°F), along with an average of 29°C (84°F). Notably, August is also wetter, with precipitation reaching 264 mm (10.4 in) over 25 days and a higher humidity level of 88%. For more detailed information, you can refer to Jiangnan weather in August.

In comparing the weather of May and September, both months exhibit warm temperatures, but September tends to be slightly more comfortable. In May, the minimum temperature is around 16°C (61°F), with averages reaching 26°C (80°F) and highs peaking at 36°C (98°F). This month also experiences significant rainfall, with precipitation of 175 mm over about 20 days and humidity averaging 74%. In contrast, September starts off with a higher minimum temperature of 20°C (68°F) and an average of 28°C (82°F), with similar maximum temperatures of 36°C (97°F). Rainfall is slightly lower at 170 mm, spread over 18 days, and the humidity decreases slightly to 72%. For more detailed information about the weather in September, you can visit Jiangnan weather in September.

In May, temperatures in Jiangnan can reach a scorching maximum of 36°C (98°F), with an average of 26°C (80°F) and a minimum of 16°C (61°F). The month is characterized by high humidity levels at 74% and significant rainfall, averaging 175 mm (6.9 in) over 20 days. In contrast, October brings a more moderate climate, with temperatures ranging from a minimum of 15°C (59°F) to an average of 23°C (74°F) and a maximum of 34°C (94°F). Rainfall decreases significantly in October to 117 mm (4.6 in) across just 13 days, coupled with lower humidity levels at 64%. For a detailed look at weather conditions in the region during October, you can visit Jiangnan weather in October.

May and November present contrasting weather patterns. In May, temperatures soar with a minimum of 16°C (61°F) and an average high of 36°C (98°F), accompanied by high humidity at 74%. The month also sees significant rainfall, with about 175 mm (6.9 in) spread over 20 days. In contrast, November experiences much cooler temperatures, ranging from a minimum of 9°C (49°F) to a maximum of 29°C (85°F), along with a marked reduction in precipitation to just 40 mm (1.6 in) over 9 days, and lower humidity at 61%. For more details, check out Jiangnan weather in November.

In May, the weather is warm and humid, with temperatures ranging from a minimum of 16°C (61°F) to a scorching maximum of 36°C (98°F) and an average of 26°C (80°F). The month is marked by significant rainfall, totaling 175 mm (6.9 in) over approximately 20 days, coupled with a high humidity level of 74%. In contrast, December offers a much cooler climate, with temperatures dropping to a minimum of 4°C (40°F) and reaching a pleasant maximum of 29°C (84°F), averaging around 15°C (59°F). Precipitation is considerably less in December, totaling only 48 mm (1.9 in) across 8 days, and humidity levels are lower at 63%. For more information, you can check out Jiangnan weather in December.

Compare Jiangnan's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Jiangnan

May in Jiangnan stands out as a month of transition, where the warmth begins to assert itself but is often accompanied by a notable increase in moisture. Unlike the cooler months preceding it, May enjoys considerably higher temperatures, fostering a lively atmosphere. However, with this warmth comes a significant uptick in precipitation, as rainy days become more prevalent. The air feels thicker, driven by humidity levels that hover around 74%, creating a sense of lushness in the environment. This combination of heat and moisture sets the stage for the vibrant summer months ahead, making May a distinctive and dynamic time to experience the charm of Jiangnan. For more details on this captivating climate, explore Jiangnan Climate.