May Weather in Dandong, China

Last updated: August 21, 2025

May in Dandong, China welcomes the transition to warmer weather, showcasing a maximum temperature soaring to 28°C (83°F), while the average temperature settles around a pleasant 16°C (61°F). However, the month can start off cool, with minimum temperatures dipping to 1°C (34°F). Rainfall is a notable feature, with a total precipitation amount of 91 mm (3.6 in) spread over approximately 10 wet days, contributing to a humidity level of 70% that enhances the lushness of the landscape. Overall, May offers a blend of warmth and refreshing rain, making it a vibrant time to experience this charming city.

May Temperature in Dandong

May in Dandong, China marks a delightful transition into warmer weather, as temperatures begin to rise significantly from the chilly early months of the year. With a minimum of 1°C (34°F) and an average of 16°C (61°F), the city shakes off the remnants of winter and embraces the joys of spring. Daytime highs can reach a pleasant 28°C (83°F), offering ideal conditions for outdoor activities and exploration. This month stands out with its remarkably moderate climate, hinting at the hot summer days ahead, while still allowing the lingering coolness of early May mornings. The overall trend indicates a steady warmth that gradually paves the way for the summer heat.

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

The chart illustrates May temperature patterns in Dandong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dandong, 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).
JanFebMarAprMayJunJulAugSepOctNovDec192539516069777667523823
Data source: Temperature data for Dandong 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 Dandong

May marks a significant shift in Dandong, China’s precipitation patterns, with a dramatic increase in rainfall compared to the earlier months of the year. The city receives a substantial 91 mm (3.6 in) of rain over 10 days, making May a pivotal month for seasonal transitions. This notable uptick follows a wetter April, which recorded 47 mm (1.8 in), but pales in comparison to the forthcoming summer months. As the region heads into June, precipitation peaks at 100 mm (3.9 in), setting the stage for even wetter conditions. This trend highlights a gradual build-up of moisture in the spring, which leads into the more torrential rains of the summer, defining Dandong's climate and ecology.

May Precipitation Trends in Dandong

The chart displays monthly precipitation patterns in Dandong, 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 Dandong, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec71919479110011427287606112
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Dandong

As spring unfolds in Dandong, China, May brings a noticeable shift in humidity, climbing to 70%. This increase marks a transition from the milder conditions of earlier months, where humidity hovered between 52% and 59%. The rise in humidity often indicates the approach of the summer season, leading into even more humid months ahead, such as June and July, which can see levels soar to 79% and 85%, respectively. The upward trend in humidity during May not only enhances the lushness of the landscape but also sets the stage for the warm, tropical conditions that characterize Dandong's summer. As the year progresses, residents can expect an increasingly humid atmosphere, culminating in peak levels around mid-summer.

May Average Humidity in Dandong

This chart illustrates the average monthly humidity levels in Dandong, 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 Dandong is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec58%52%53%60%71%79%85%86%75%80%70%58%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Dandong

In May, Dandong, China, experiences a notable increase in the UV Index, reaching 8, which falls under the very high exposure category. This significant rise from the previous months highlights the importance of sun protection, as the risk of harm to skin intensifies with a reduced burn time of just 15 minutes. The trend throughout the year shows a gradual climb in UV levels, peaking in the summer months, but May's jump serves as a critical reminder for residents and visitors alike to remain vigilant against UV exposure. Protect yourself by seeking shade or applying sunscreen, especially during this pivotal month. For more detailed information, visit the Dandong UV Index.

Maximum UV Index Levels in Dandong for May

The chart shows the monthly maximum UV Index (UVI) for Dandong 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 Dandong typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec236781010108632
Data source: Dandong 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 Dandong

In Dandong, China, the arrival of May marks a delightful turning point in sunshine hours, with residents enjoying approximately 305 hours of natural light—up from 290 hours in April. This increase not only highlights the spring's gentle embrace but also kicks off the sunniest months of the year, as June and July follow closely, boasting 303 and 307 hours, respectively. The steady rise from January’s mere 200 hours to May’s abundance illustrates a captivating trend of increasing daylight, inviting outdoor activities and the blooming of vibrant landscapes. As summer approaches, the sunshine hours remain high, creating a warm and welcoming atmosphere that captivates both locals and visitors alike.

Monthly Sunshine Duration in Dandong: May Highlighted

The May sunshine duration represents the total number of hours Dandong 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.
JanFebMarAprMayJunJulAugSepOctNovDec200h240h281h290h305h303h307h286h278h265h236h238h
Data source: Dandong May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dandong During May

In Dandong, China, the likelihood of experiencing sunny weather in May dips to 43%, marking a notable decline compared to the sunnier months earlier in the year. After a promising start in January with 63% sunshine, February peaks at 69%, only for the chances to gradually wane as spring approaches. By April, the sunniest days are waning with a 51% chance, leading into May when this trend continues. This downward shift hints at the transition towards the largely overcast summer months, where June sees a further plunge to 33%. As such, May offers a mixed bag of weather, with relatively fewer sunny days, making it a time for both hopeful sunshine seekers and those looking to enjoy the blossoming beauty of spring.

Percentage of Sunny Days in May in Dandong

The chart illustrates the percentage of sunny days in Dandong 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 Dandong experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec63%69%52%51%43%33%28%38%40%56%58%73%
Data source: Dandong May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dandong in May

As the year unfolds in Dandong, China, daylight duration shows a delightful progression. Starting from a modest 9 hours in January, the days gradually lengthen, with February bringing an increase to 10 hours and March further extending it to 11 hours. By April, the sunshine begins to shine brighter with 13 hours, paving the way for a vibrant May, where daylight reaches its peak at 14 hours. This extended exposure to sunlight continues through June and July, creating perfect conditions for summer activities. As the season shifts into August, daylight begins to taper off slightly at 13 hours, and by September, it gracefully declines to 12 hours. The pattern continues into autumn, with October experiencing 11 hours of daylight before a return to 9 hours in November and December, marking the end of the cycle. This rhythmic transition of light not only signals the changing seasons but also enhances the lively atmosphere of Dandong throughout the year.

Average Daylight Hours in Dandong for May

The chart illustrates the variation in daylight duration in Dandong throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 39m10h 39m11h 57m13h 16m14h 23m14h 57m14h 40m13h 41m12h 25m11h 6m9h 57m9h 21m
Data source: Dandong daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Dandong

In Dandong, China, the winds in May gently average 2.9 m/s (7 mph), reflecting a transition to warmer weather. This slightly elevated speed marks a peak in the early spring months, with April and May sharing similar breezes at 3.2 m/s (7 mph) and 2.9 m/s (7 mph), respectively. Following this mild gustiness, a gradual decline is observed as summer approaches, with wind speeds dipping to 2.3 m/s (5 mph) in both June and July. Over the year, a noticeable ebb and flow in wind speed can be seen, typically characterized by calmer conditions in the height of summer, contrasting with brisker movements in late spring and early autumn, such as October’s return to 3.0 m/s (7 mph).

Average May Wind Speed in Dandong

The chart displays monthly wind speed patterns in Dandong, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.73.22.83.22.9 m/s2.32.32.12.23.02.73.0
Data source: Dandong May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Dandong Compares to Other Months

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

In May, the weather is considerably milder compared to January, with temperatures ranging from a chilly 1°C (34°F) to a warm 28°C (83°F) and an average of 16°C (61°F). This month experiences about 91 mm (3.6 in) of precipitation over approximately 10 days, accompanied by a humidity level of 70%, creating a lush atmosphere. In stark contrast, January is characterized by frigid temperatures, with a minimum of -23°C (-9°F) and a maximum of only 8°C (46°F), averaging -7°C (19°F). January sees minimal precipitation, only about 7 mm (0.3 in) across just 1 day, and has a lower humidity of 58%. For a deeper dive into the January conditions, you can check Dandong weather in January.

May and February present stark contrasts in weather conditions. In May, temperatures range from a chilly 1°C (34°F) at night to a warm 28°C (83°F) during the day, with an average of 16°C (61°F). The month experiences moderate precipitation, totaling 91 mm (3.6 in) over 10 days, accompanied by a higher humidity of 70%. In contrast, February is much colder, with temperatures dipping as low as -20°C (-3°F) at night and reaching a maximum of 13°C (55°F), averaging -4°C (25°F). Precipitation is minimal in February, amounting to just 19 mm (0.8 in) over 3 days, and the humidity is lower at 52%. For more details on February weather, you can check Dandong weather in February.

When comparing the weather in May and March, it's evident that May offers much milder and pleasant conditions. May experiences a minimum temperature of 1°C (34°F) and an average of 16°C (61°F), reaching as high as 28°C (83°F), while March sees much colder temperatures, ranging from a minimum of -10°C (14°F) to an average of only 4°C (39°F). Additionally, May has significantly more precipitation at 91 mm (3.6 in) over 10 days, compared to March's modest 19 mm (0.7 in) over just 4 days. The humidity in May is also higher at 70%, compared to March’s 53%. For more detailed information on March weather specifically, you can visit Dandong weather in March.

In comparing the weather of May and April, May shows a marked increase in temperature, with minimums rising from -3°C (26°F) in April to 1°C (34°F) in May, while average temperatures jump from 10°C (51°F) in April to 16°C (61°F) in May. The maximum temperatures also see an upward trend, reaching up to 28°C (83°F) in May compared to April's high of 24°C (75°F). However, May experiences more precipitation, totaling 91 mm (3.6 in) over 10 days, compared to April's 47 mm (1.8 in) across just 5 days. Additionally, May's humidity is higher at 70%, contrasted with April's 59%. For a detailed look at April weather specifically, you can visit Dandong weather in April.

May and June exhibit notable differences in weather patterns. In May, temperatures range from a chilly 1°C (34°F) at night to a pleasant average of 16°C (61°F) during the day, peaking at 28°C (83°F). The month sees a total precipitation of 91 mm (3.6 in), occurring over about 10 days, with humidity levels around 70%.

In contrast, June showcases a milder climate with minimum temperatures rising to 8°C (48°F) and an average of 21°C (69°F), reaching a maximum of 31°C (88°F). Precipitation slightly increases to 100 mm (3.9 in) over just 9 days, accompanied by higher humidity at 79%. For more specific information, you can check Dandong weather in June.

May and July exhibit notable differences in weather characteristics. In May, temperatures range from a chilly minimum of 1°C (34°F) to a warm maximum of 28°C (83°F), with an average of 16°C (61°F). The month sees around 91 mm (3.6 inches) of precipitation over 10 days, accompanied by a humidity level of 70%. In contrast, July experiences significantly warmer conditions, with temperatures starting at a minimum of 15°C (60°F) and peaking at 36°C (96°F), averaging 25°C (77°F). July also has slightly higher precipitation, totaling 114 mm (4.5 inches) over 13 days, and increased humidity at 85%. For more detailed weather insights, you can refer to Dandong weather in July.

In May, the weather is mild with average temperatures ranging from a cool 1°C (34°F) to a warmer maximum of 28°C (83°F), creating a pleasant atmosphere ideal for outdoor activities. However, it does experience some rainfall, with a total precipitation of 91 mm (3.6 in) over about 10 days and a humidity level of 70%. In contrast, August sees significantly warmer temperatures, with minimums of 11°C (52°F) and average highs reaching a sweltering 38°C (100°F). This month is also much wetter, averaging 272 mm (10.7 in) of rainfall over 17 days, and the humidity rises to a sticky 86%. For more detailed information about August weather, refer to Dandong weather in August.

In May, the weather presents a mild transition into warmer days, with temperatures ranging from a cool minimum of 1°C (34°F) to a pleasant average of 16°C (61°F) and peaking at a comfortable 28°C (83°F). The month experiences around 91 mm (3.6 inches) of rain spread over approximately 10 days, accompanied by a humidity level of 70%.

Conversely, September is generally warmer, with minimum temperatures of 3°C (38°F) and an average of 19°C (67°F), reaching a maximum of 31°C (88°F). It features slightly less precipitation at 87 mm (3.4 inches) over about 7 days, and a higher humidity level of 75%. This makes September feel a bit more humid compared to May. For more details about September's climate, check out Dandong weather in September.

May and October showcase significantly different weather patterns. In May, temperatures range from a mild 1°C (34°F) at night to a comfortable 28°C (83°F) during the day, with an average of 16°C (61°F). This month experiences about 91 mm (3.6 in) of precipitation over 10 days, accompanied by a humidity level of 70%. In contrast, October brings cooler nights, with temperatures dropping to a chilly -4°C (25°F), while daytime highs can reach 29°C (84°F) under the right conditions. The average temperature is lower at 11°C (53°F), and October sees less rainfall at 59 mm (2.3 in) over just 7 days. Notably, the humidity rises to 80%, making the air feel even cooler. For more detailed information, check out Dandong weather in October.

May and November present contrasting weather patterns, showcasing the transition from spring to late autumn. In May, temperatures range from a chilly minimum of 1°C (34°F) to a warm average of 16°C (61°F), reaching up to a pleasant 28°C (83°F) on warmer days. The month experiences an average precipitation of 91 mm (3.6 in) over approximately 10 days, combined with a humidity level of 70%. In stark contrast, November's climate can be much colder, with a minimum dipping to -11°C (13°F) and an average around 3°C (38°F), while it can still reach a maximum of 21°C (69°F). The precipitation decreases to 61 mm (2.4 in) over just 6 days, but the humidity remains consistent at 70%. For more specifics on November weather, you can refer to Dandong weather in November.

May and December present stark contrasts in weather conditions. In May, temperatures range from a chilly 1°C (34°F) at night to a warm 28°C (83°F) during the day, with an average of around 16°C (61°F). This month experiences a moderate amount of precipitation, totaling 91 mm (3.6 in) over about 10 days, and a relatively high humidity of 70%. In contrast, December sees much colder temperatures, with a minimum of -20°C (-5°F) and an average of -5°C (23°F), peaking at only 7°C (45°F). Precipitation decreases significantly to 12 mm (0.5 in) over just 3 days, and humidity drops to 58%. These shifts highlight the transition from a mild spring to a harsh winter. For more detailed insights into December weather specific to Dandong, you can check Dandong weather in December.

Compare Dandong's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Dandong

As May blossoms in Dandong, it brings a delightful transition with warmer temperatures and a significant increase in daylight hours compared to the preceding months. The average temperature rises, making it an ideal time for outdoor activities, while the city experiences a moderate level of humidity and precipitation. The month is characterized by vibrant landscapes as nature awakens, yet occasional rain showers remind us of the lingering spring season. In contrast to the cooler, drier conditions of earlier months, May stands out as a time of renewal and beauty. For more detailed insights into weather patterns throughout the year, explore the Dandong Climate page.