May Weather in Dongguan, China

Last updated: August 21, 2025

May in Dongguan, China is characterized by warm temperatures and significant rainfall. The maximum temperature can soar to 36°C (96°F), while the average hovers around a comfortable 27°C (81°F), and nights cool down to a refreshing 16°C (61°F). This month experiences substantial precipitation, totaling approximately 228 mm (9.0 in) over 22 days, contributing to high humidity levels of about 79%. As the city transitions into the peak of summer, prepare for a blend of bright days and frequent showers, making it essential to stay hydrated and ready for varied weather conditions.

May Temperature in Dongguan

As spring transitions into summer, Dongguan experiences a notable rise in temperatures during May. The month begins with minimum temperatures around 16°C (61°F), providing a warm foundation for the increasingly hot days ahead. With an average temperature of 27°C (81°F) and maximums reaching up to 36°C (96°F), May emerges as a vibrant precursor to the sultry summer months. This noticeable uptick from the cooler April, where averages hovered around 23°C (74°F), highlights a shift towards a more tropical climate, setting the stage for the peak warmth of June and July. The warmth of May not only invites outdoor activities but also signals a time for the lush greenery that thrives in the abundant heat.

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

The chart illustrates May temperature patterns in Dongguan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dongguan, 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).
JanFebMarAprMayJunJulAugSepOctNovDec626370748084858483777163
Data source: Temperature data for Dongguan 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 Dongguan

In May, Dongguan experiences a significant uptick in precipitation, with 228 mm (9.0 in) of rain falling over 22 days. This marks a striking contrast to the earlier months, where January through April averaged considerably lower amounts, peaking at 132 mm (5.2 in) in April. The consistent rainfall in May not only ramps up the total yearly precipitation but also sets the stage for the monsoon season that follows in June, where rainfall more than doubles to 413 mm (16.3 in). As May showers nourish the lush environment, they highlight a trend of increasing precipitation as the year progresses, paving the way for the vibrant greenery characteristic of the region.

May Precipitation Trends in Dongguan

The chart displays monthly precipitation patterns in Dongguan, 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 Dongguan, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec235193132228413202318183912320
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Dongguan

As spring gives way to summer, May in Dongguan, China, marks a notable increase in humidity, reaching 79%—a significant rise from April's 71%. This trend reflects the region's transition as warmer temperatures set in, paving the way for the sultry summer months ahead. The humidity consistently escalates during the summer, peaking in July and August at an impressive 88%, creating a muggy atmosphere that characterizes the season. Interestingly, after this peak, humidity begins its gradual decline in September, ultimately dropping to 64% by November. Overall, May serves as a bridge between milder conditions and the balmy embrace of the summer, laying the groundwork for the intense humidity that follows.

May Average Humidity in Dongguan

This chart illustrates the average monthly humidity levels in Dongguan, 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 Dongguan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec64%68%73%71%79%77%88%88%75%65%64%69%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Dongguan

In May, Dongguan, China, experiences a heightened UV Index of 13, categorized as extreme, resulting in a quick burn time of just 10 minutes for unprotected skin. This trend of increasing UV intensity has been evident since January, where the index began at 7 and rose steadily through the months. Both March and April also saw an extreme index of 12, but May pushes the limits even further, joined by June through August at the same intensity level. The consistent extreme UV exposure during these months underscores the importance of sun safety measures. For more detailed information about UV levels throughout the year, visit Dongguan UV Index.

Maximum UV Index Levels in Dongguan for May

The chart shows the monthly maximum UV Index (UVI) for Dongguan 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 Dongguan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79121213131313121097
Data source: Dongguan 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 Dongguan

As spring gives way to summer in Dongguan, China, May shines brightly with an impressive 272 hours of sunshine, marking it as a peak month in the region’s sunlit calendar. This surge in sunshine hours not only boosts the total from previous months, such as April's 214 hours, but also sets the stage for the summer months ahead. Following May, June maintains a commendable 250 hours, while July reaches a peak of 302 hours, illuminating the city's transition to a sun-drenched summer. Throughout the year, these trends highlight Dongguan's sunny disposition, creating an inviting atmosphere for outdoor activities and vibrant community life. The consistent increase in sunlight hours as temperatures rise further enhances the charm of this bustling city, making May a truly radiant month.

Monthly Sunshine Duration in Dongguan: May Highlighted

The May sunshine duration represents the total number of hours Dongguan 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.
JanFebMarAprMayJunJulAugSepOctNovDec197h220h219h214h272h250h302h272h272h267h243h251h
Data source: Dongguan May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Dongguan During May

As spring transitions into summer, the likelihood of sunny weather in Dongguan, China, experiences a notable decline. In May, the chance of basking under blue skies drops to 25%, marking a significant decrease from the sunnier months earlier in the year. With January and February enjoying sunny probabilities of 62% and 59%, respectively, the trend shifts dramatically as summer approaches, with June plummeting to just 10%. April’s pleasant weather gives way to May's cloudier days, hinting at a pattern where sunshine becomes increasingly elusive. This trend suggests that anyone hoping for clear May afternoons should prepare for a higher likelihood of overcast skies as they look ahead to summer.

Percentage of Sunny Days in May in Dongguan

The chart illustrates the percentage of sunny days in Dongguan 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 Dongguan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec62%59%33%32%25%10%31%14%41%36%60%51%
Data source: Dongguan May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Dongguan in May

As spring transitions into summer in Dongguan, China, the daylight duration gradually increases, peaking in May with an inviting 13 hours of light per day. This rise from 10 hours in January and 11 hours in February highlights the shift toward longer days, encouraging outdoor activities and social gatherings. March and April bring a steady progression to 12 hours of daylight, hinting at the vibrant life that flourishes as the year warms up. Following May, the daylight hours remain consistent throughout June and July, providing ample sunshine during the bustling summer months. As the year progresses into August, daylight begins to taper off slightly, with 12 hours returning, eventually descending back to 11 hours by October. This cyclical pattern provides a rhythmic reminder of nature’s seasonal changes, making each month unique in its own right.

Average Daylight Hours in Dongguan for May

The chart illustrates the variation in daylight duration in Dongguan throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 52m11h 22m12h 1m12h 40m13h 14m13h 30m13h 22m12h 53m12h 15m11h 35m11h 1m10h 44m
Data source: Dongguan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Dongguan

In May, Dongguan experiences a gentle uptick in wind speed, averaging 2.7 m/s (6 mph)—a subtle increase from April's 2.3 m/s (5 mph). This slight breeze breathes life into the scenery, setting the stage for a vibrant transition into summer. As the months progress, wind speeds generally exhibit a gradual decline, particularly through the sweltering summer months of July and August, where they dip to their lowest at 1.9 m/s (4 mph). However, the trend shifts again in October when winds pick up, averaging 3.1 m/s (7 mph), suggesting that the autumn season brings renewed vigor to the atmosphere. Overall, May stands out as a month of moderate winds, perfectly positioned between the cooler spring breezes and the upcoming autumnal gusts.

Average May Wind Speed in Dongguan

The chart displays monthly wind speed patterns in Dongguan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.62.22.62.32.7 m/s2.52.11.91.53.12.52.6
Data source: Dongguan May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Dongguan Compares to Other Months

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

May and January present contrasting weather conditions. May boasts warmer temperatures, with lows of 16°C (61°F) and highs reaching up to 36°C (96°F), typically averaging around 27°C (81°F). In stark contrast, January's temperatures are much cooler, with minimums of 3°C (38°F) and a comfortable average of 16°C (62°F), peaking at 28°C (82°F). Additionally, May experiences significantly higher precipitation, with 228 mm (9.0 in) spread over 22 days, while January sees much drier conditions, receiving only 23 mm (0.9 in) over just 3 days. The humidity levels are also higher in May at 79%, compared to 64% in January. For a more detailed look at the January weather, check out Dongguan weather in January.

When comparing the weather in May to February, it's clear that May is significantly warmer and more humid. In May, temperatures range from a minimum of 16°C (61°F) to a maximum of 36°C (96°F), with an average of 27°C (81°F). This month also sees considerable rainfall, with 228 mm (9.0 in) recorded over 22 days, contributing to a high humidity level of 79%. In contrast, February features much cooler temperatures, with a minimum of 5°C (41°F) and a maximum of 30°C (86°F), averaging at 17°C (63°F). Precipitation in February is markedly lower at 51 mm (2.0 in) over just 7 days, and humidity is at a more moderate 68%. For more details, you can check out Dongguan weather in February.

In comparing the weather between March and May, May is significantly warmer, with average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 36°C (96°F), while March sees milder temperatures, with minimums of 9°C (49°F) and maximums reaching 31°C (87°F). Additionally, May experiences much higher precipitation, totaling 228 mm (9.0 in) over 22 rainy days, compared to March's 93 mm (3.7 in) over just 13 days. Humidity levels are also higher in May, averaging 79%, compared to March's 73%. For more detailed information on March's weather, you can refer to Dongguan weather in March.

Comparing the weather between April and May reveals notable differences in temperature and precipitation. In April, temperatures ranged from a minimum of 12°C (53°F) to a maximum of 33°C (92°F), with an average of 23°C (74°F) and a total of 132 mm (5.2 in) of rainfall over 13 days. Humidity was relatively lower at 71%. In contrast, May brought warmer temperatures, featuring a minimum of 16°C (61°F) and a maximum of 36°C (96°F), averaging around 27°C (81°F). However, it also saw increased precipitation, with a total of 228 mm (9.0 in) spread over 22 days and a higher humidity level of 79%. Overall, May is characterized by higher temperatures and significantly more rainfall compared to April. For more details, you can check Dongguan weather in April.

May and June exhibit distinct weather patterns, with both months experiencing warm temperatures but noteworthy differences in precipitation. In May, the temperatures range from a minimum of 16°C (61°F) to a maximum of 36°C (96°F), with an average of 27°C (81°F). However, it is characterized by considerable rainfall, totaling 228 mm (9.0 in) over 22 days and high humidity at 79%. Conversely, June sees slightly warmer temperatures, with a minimum of 24°C (75°F), an average of 29°C (84°F), and a maximum of 35°C (96°F). Nonetheless, it experiences significantly higher rainfall, accumulating 413 mm (16.3 in) over 26 days, while humidity remains relatively stable at 77%. For more detailed information on weather specifics, you can visit Dongguan weather in June.

In comparing the weather of May and July, May tends to exhibit a wider range in temperatures, with minimums around 16°C (61°F) and maximums reaching up to 36°C (96°F). The average temperature in May is 27°C (81°F), and it experiences significant rainfall, totaling 228 mm (9.0 in) over 22 days, combined with a humidity level of 79%.

In contrast, July is warmer overall, with minimum temperatures starting at 25°C (77°F) and going up to a maximum of 37°C (99°F), leading to an average of 30°C (86°F). While July sees slightly less precipitation at 202 mm (8.0 in) over 24 days, it also has increased humidity at 88%. Thus, July is characterized by higher temperatures and humidity along with a more concentrated but slightly lower amount of rainfall. For more details, check out Dongguan weather in July.

In May, temperatures in Dongguan typically range from a minimum of 16°C (61°F) to a maximum of 36°C (96°F), with an average temperature of 27°C (81°F). However, May also sees a substantial amount of rainfall, accumulating to 228 mm (9.0 in) over 22 days, with humidity levels averaging around 79%.

In contrast, August experiences slightly warmer conditions, with temperatures starting from a minimum of 24°C (76°F) and peaking at 38°C (100°F), leading to an average temperature of 29°C (85°F). Rainfall in August increases to 318 mm (12.5 in), falling on 26 days, and humidity rises to 88%.

For a more detailed look at the weather conditions, you can visit Dongguan weather in August.

May and September showcase somewhat similar high temperatures, with both months reaching a maximum of 36°C (96°F) in May and 36°C (97°F) in September. However, May tends to be hotter in terms of average temperature, with 27°C (81°F) compared to September's 29°C (84°F). May also sees more rainfall, totaling 228 mm (9.0 in) across 22 days, while September has 183 mm (7.2 in) over 21 days. In terms of humidity, May is slightly higher at 79%, compared to September's 75%. For a more detailed look at September's weather, you can check out Dongguan weather in September.

In comparing the weather of May and October, one can note some significant differences. May tends to be hotter, with average temperatures reaching up to 27°C (81°F) and maximums soaring to 36°C (96°F). This month also experiences higher humidity at 79%, along with considerable rainfall, averaging 228 mm (9.0 in) over 22 days. In contrast, October offers a cooler climate, with average temperatures dropping to 25°C (78°F) and maximums capping at 35°C (95°F). The humidity also decreases to 65%, along with significantly lower rainfall of just 91 mm (3.6 in) over 8 days. For a more detailed look at October weather specifically, you can visit Dongguan weather in October.

May and November present quite different weather experiences. In May, temperatures range from a minimum of 16°C (61°F) to a maximum of 36°C (96°F), with an average of 27°C (81°F). The month is characterized by high humidity at 79% and significant rainfall, totaling 228 mm (9.0 in) over 22 rainy days. In contrast, November enjoys milder temperatures, with a minimum of 12°C (55°F) and a maximum of 31°C (88°F), averaging 22°C (71°F). This month sees much less precipitation, with only 23 mm (0.9 in) over just 4 days, and a lower humidity of 64%. For more detailed insights, you can explore Dongguan weather in November.

May and December present contrasting weather conditions. In May, temperatures range significantly from a minimum of 16°C (61°F) to a maximum of 36°C (96°F), with an average temperature of 27°C (81°F). This month also sees substantial rainfall, with 228 mm (9.0 in) of precipitation spread over 22 days, resulting in high humidity levels at 79%. In stark contrast, December features much cooler temperatures, plummeting to a minimum of 7°C (45°F) and peaking at 29°C (85°F), with a comfortable average of 17°C (63°F). Furthermore, December experiences significantly less rainfall, with only 20 mm (0.8 in) over just 3 days, and a lower humidity of 69%. For more details, visit Dongguan weather in December.

Compare Dongguan's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Dongguan

As May arrives in Dongguan, the weather transitions into a warm and humid phase, with temperatures significantly rising compared to the cooler months. This shift brings an average temperature of 27°C, inviting both locals and visitors to embrace outdoor activities—albeit amidst the increased humidity of 79%. Rainfall is also prevalent, with May experiencing frequent showers over approximately 22 days, accumulating notable precipitation. Overall, the month marks a striking contrast to the preceding seasons, heralding a vibrant blend of warmth and moisture that characterizes Dongguan's spring. Discover more about this lively period and other seasonal variations at Dongguan Climate.