Last updated: August 21, 2025
In April, Jiangnan, China experiences a dynamic weather pattern characterized by a maximum temperature reaching up to 34°C (93°F), an average of 18°C (65°F), and a minimum dipping to 4°C (39°F). This month typically sees 97 mm (3.8 in) of precipitation spread over approximately 12 days, contributing to a high humidity level of 86%. Such conditions create a lush and vibrant atmosphere, perfect for enjoying the beauty of spring in this picturesque region.
In April, the temperatures in Jiangnan, China, begin to shift noticeably, signaling the arrival of spring. With a minimum of 4°C (39°F) and an average of 18°C (65°F), this month marks a dramatic increase from the chill of winter. The maximum temperature can reach a warm 34°C (93°F), hinting at the warmth that will soon dominate the region as summer approaches. This transitional period showcases a blend of comfortable days and cooler evenings, inviting outdoor activities and the blooming of vibrant landscapes. Overall, April serves as a delightful bridge between the lingering coolness of early spring and the forthcoming heat of summer.
April in Jiangnan, China, marks a transitional phase in the region's weather patterns, characterized by a precipitation amount of 97 mm (3.8 in) over 12 days of rain. This reflects a slight decrease compared to March's 134 mm (5.3 in), yet serves as a precursor to the more intense rainfall that follows in May and June, where precipitation peaks dramatically. Overall, as spring advances, the region evidences a shift from the heavier rains of early spring to a more moderate but consistent rainfall trend, foreshadowing the lush landscapes of the approaching summer season.
As April arrives in Jiangnan, China, humidity peaks at a notable 86%, signaling the transition into the region's more tropical climate. This month marks a significant rise from the preceding months, as humidity steadily climbs from 65% in January to 81% in March. Following April, the wet season continues with May and June maintaining high humidity levels of 87%. Interestingly, July and August experience the highest humidity at 91% and 87%, respectively, emphasizing a clear trend of increasing moisture as the warm months advance. Even as the air begins to dry in the fall, with humidity levels dropping to 72% in September, it’s evident that April serves as a vital turning point in introducing the lush, humid atmosphere characteristic of Jiangnan's summer months.
As April arrives in Jiangnan, China, the UV Index mirrors the intensity of spring, reaching 10 and placing it in the very high exposure category. With a burn time of just 15 minutes, it’s critical for residents and visitors to take sun protection seriously. This pattern, established in March, showcases a continued trend of elevated UV levels as the region transitions into warmer months, hinting at an escalating UV Index through May, which peaks at 12. The increasing UV exposure underlines the importance of being sun-smart, especially as the year progresses. For detailed insights into the UV levels throughout the year, visit Jiangnan UV Index.
UV Risk Categories
April in Jiangnan, China, brings a delightful surge of sunshine, with 243 hours of radiant exposure, marking a notable increase from the previous months. As the days lengthen, this sunny embrace signifies the arrival of spring, invigorating both nature and the spirits of its inhabitants. Following March's 197 hours, April blossoms into one of the sunniest months, setting the stage for May's crescendo of 264 hours. This upward trend peaks in the summer, showcasing Jiangnan's transformation into a vibrant tapestry of life and color as the summer months draw near. The gradual escalation in sunshine hours not only highlights the climatic shifts but also invites locals and travelers alike to revel in the beauty of this enchanting region.
As April arrives in Jiangnan, the likelihood of sunny weather dips slightly to 27%, following a trend of decreasing sunshine from the previous months. The region experiences its highest chance of sunshine earlier in the year, with 54% in January, gradually dropping to 24% by March. This pattern marks a distinction as spring begins, suggesting that while the days may start to brighten, April is typically not among the sunniest months. Interestingly, the chance of sunny days begins to recover in the late summer and early autumn, peaking again at 45% in September. Thus, while April holds promise for warmer weather, residents and visitors alike should be prepared for a mix of sunshine and cloud cover.
As spring unfolds in Jiangnan, China, April brings a delightful increase in daylight, with the sun gracing the skies for a full 12 hours—a welcome shift from the shorter days of winter. This month signals the transition towards summer, continuing the upward trend in daylight that began in February; where a modest 11 hours marked the start of the lightening days. By the time we reach May, daylight stretches further to 13 hours, paving the way for vibrant outdoor activities and blossoming nature. The gradual rise in daylight from January’s 10 hours to April’s 12 hours reflects the awakening of the season, inviting residents and visitors alike to embrace the longer, sunnier days ahead.
April in Jiangnan greets visitors with gentle breezes, as the average wind speed hovers at a tranquil 1.8 m/s (4 mph). This month's winds, consistent with those of the preceding months, hint at a soft transition into the warmer seasons. As spring unfolds, the winds remain mild and calm, providing a serene backdrop to the blossoming landscapes. Interestingly, the wind begins to pick up slightly in May before a notable increase in July, suggesting a shift towards the more dynamic weather typical of summer. March and April's steady gusts contribute to a sense of continuity, making these months ideal for leisurely strolls along the picturesque rivers of Jiangnan.
Weather in Jiangnan varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Jiangnan, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January present a stark contrast in weather conditions. In April, temperatures range significantly, with a minimum of 4°C (39°F), an average of 18°C (65°F), and a maximum reaching up to 34°C (93°F). This month also sees a higher level of precipitation at 97 mm (3.8 in) over approximately 12 days, coupled with high humidity of 86%. In contrast, January experiences colder temperatures, with a minimum of -5°C (23°F), an average of 7°C (46°F), and a maximum of 25°C (78°F). Precipitation is lower, totaling 67 mm (2.7 in) across about 8 days and a humidity of 65%. This comparison highlights April's warmer temperatures and increased humidity and rainfall, making it quite different from the chilly and drier January weather. For more specific details on January weather in Jiangnan, visit Jiangnan weather in January.
April and February showcase a distinct contrast in weather. April boasts a significantly warmer temperature range, with minimums of 4°C (39°F) and maximums reaching up to 34°C (93°F), while February’s temperatures dip much lower, starting at -3°C (26°F) and peaking at 27°C (81°F). Additionally, April experiences higher precipitation, totaling 97 mm (3.8 in) over 12 days, compared to February’s 75 mm (2.9 in) across 10 days. The humidity is also higher in April at 86%, compared to February's 71%. For a deeper look into February weather specifics, you can visit Jiangnan weather in February.
April presents a notable warming trend compared to March, with average temperatures rising from 14°C (57°F) in March to 18°C (65°F) in April. The minimum temperatures also shift upward, with April's low of 4°C (39°F) contrasting sharply with March's chilly -1°C (31°F). While both months experience significant rainfall, April has slightly less precipitation at 97 mm (3.8 in) over 12 days, compared to March's 134 mm (5.3 in) over 15 days. Humidity levels are also higher in April at 86%, compared to March's 81%. For a more detailed look at weather patterns in March, you can visit Jiangnan weather in March.
April and May exhibit noticeable differences in weather patterns, characterized by both temperature and precipitation variations. In April, temperatures range from a minimum of 4°C (39°F) to a maximum of 34°C (93°F), with an average of 18°C (65°F). The month experiences about 97 mm (3.8 in) of precipitation over 12 days and has a humidity level of 86%. In contrast, May shows a significant increase in warmth, with temperatures soaring between 9°C (49°F) and 41°C (107°F), and an average of 23°C (74°F). Precipitation also rises substantially to 189 mm (7.4 in) over 14 days, accompanied by a slightly higher humidity of 87%. These factors contribute to a more tropical feel in May compared to the milder conditions of April. For more details, check Jiangnan weather in May.
April and June present quite different weather profiles. In April, temperatures range from a minimum of 4°C (39°F) to a maximum of 34°C (93°F), with an average of 18°C (65°F). The month is characterized by relative humidity at 86% and 97 mm (3.8 in) of precipitation over about 12 days. In contrast, June experiences warmer conditions with minimum temperatures of 15°C (60°F) and highs reaching up to 38°C (100°F), averaging 25°C (78°F). The humidity remains slightly higher at 87%, but the rainfall increases significantly to 286 mm (11.3 in) across around 19 days. For a deeper look into the weather patterns, you can refer to Jiangnan weather in June.
April and July present markedly different weather patterns. In April, temperatures range from a cool 4°C (39°F) at night to a warm 34°C (93°F) during the day, with an average of 18°C (65°F). The month sees approximately 97 mm (3.8 in) of precipitation over 12 days, and humidity averages around 86%. In contrast, July brings much warmer conditions, with temperatures starting at a minimum of 21°C (70°F) and reaching up to 41°C (106°F), averaging around 29°C (85°F). Rainfall significantly increases to 233 mm (9.2 in) over 16 days, accompanied by a rise in humidity to 91%. For more details on July weather in this region, check out Jiangnan weather in July.
April and August exhibit distinct weather patterns, reflective of the changing seasons. In April, temperatures range from a cool 4°C (39°F) at night to a warm 34°C (93°F) during the day, with an average of 18°C (65°F). The month sees about 97 mm (3.8 in) of precipitation over 12 days, accompanied by high humidity levels averaging 86%. In contrast, August is noticeably warmer, with minimum temperatures of 22°C (71°F) and daytime highs reaching up to 41°C (106°F), resulting in an average temperature of 30°C (87°F). Rainfall in August totals approximately 136 mm (5.3 in), occurring over 11 days, and humidity remains high at 87%. For those interested in learning more about the weather conditions in August, you can find additional information here: Jiangnan weather in August.
April and September present distinct weather patterns that reflect the transition of seasons. In April, the average temperature ranges from a cool minimum of 4°C (39°F) to a hot maximum of 34°C (93°F), with an average of 18°C (65°F). The month experiences significant precipitation, totaling 97 mm (3.8 in) over 12 days, contributing to a high humidity level of 86%. In contrast, September enjoys a milder climate with temperatures ranging from a minimum of 16°C (62°F) to a high of 39°C (102°F) and an average of 27°C (80°F). While it also sees rainfall, the amounts are slightly lower at 90 mm (3.6 in) spread across 11 days, and the humidity drops to a more comfortable 72%. For more detailed insights into weather patterns during this month, you can refer to Jiangnan weather in September.
April and October present distinct weather patterns. In April, temperatures can range from a cool 4°C (39°F) at night to a warm 34°C (93°F) during the day, with an average of 18°C (65°F). April sees considerable rainfall, totaling 97 mm (3.8 in) over about 12 days, accompanied by high humidity at 86%. In contrast, October offers milder temperatures, with a minimum of 9°C (49°F) and a maximum reaching 37°C (98°F), averaging around 21°C (69°F). The month is drier, with only 59 mm (2.3 in) of precipitation across 7 days and lower humidity levels at 74%. For more detailed insights, visit Jiangnan weather in October.
April and November present distinct weather patterns, showcasing the transition between warmer and cooler months. In April, temperatures range from a minimum of 4°C (39°F) to a maximum of 34°C (93°F), with an average of 18°C (65°F). The month experiences higher humidity at 86% and more precipitation, totaling 97 mm (3.8 in) over about 12 days. In contrast, November features slightly cooler temperatures with a minimum of 3°C (38°F) and a maximum of 32°C (90°F), averaging 15°C (60°F). It sees lesser rainfall, accumulating 67 mm (2.6 in) over 9 days and lower humidity levels at 80%. For more details about weather conditions in this month, visit Jiangnan weather in November.
April weather typically features a much warmer climate compared to December, with temperatures ranging from a chilly minimum of 4°C (39°F) to a much warmer average of 18°C (65°F) and peaks reaching as high as 34°C (93°F). In contrast, December experiences cooler temperatures, with minimums dropping to -2°C (29°F) and an average of 9°C (49°F), while the maximum can reach 25°C (78°F). April is characterized by higher precipitation levels, with 97 mm (3.8 in) spread over 12 days, compared to December's 62 mm (2.5 in) over just 9 days. Additionally, humidity is notably higher in April at 86%, whereas December's humidity sits at a lower 78%. For more detailed insights, you can visit Jiangnan weather in December.
As April unfolds in Jiangnan, the weather begins to transition from the cool embrace of winter to the warmth of spring. While temperatures can reach a maximum of 34°C during the day, the average remains a more moderate 18°C, providing a comfortable backdrop for enjoying the outdoors. However, April also sees an increase in precipitation, with about 97 mm falling over 12 days, which adds a refreshing touch to the landscape but may require some planning for outdoor activities. With humidity levels hovering around 86%, this month can feel particularly humid, contrasting sharply with the drier winter months. For a deeper dive into Jiangnan's climate patterns and seasonal variations, visit Jiangnan Climate.