Last updated: August 21, 2025
April in Hainan, China experiences a delightful blend of spring warmth and gentle showers. With maximum temperatures reaching up to 25°C (78°F) and an average hovering around 7°C (44°F), the climate provides a refreshing atmosphere for outdoor activities. However, the temperature can dip as low as -9°C (16°F), reminding visitors to prepare for varying conditions. Additionally, the month sees approximately 32 mm (1.3 in) of rainfall spread over 4 days, contributing to a comfortable humidity level of 59%. Perfect for those seeking a mild getaway, April heralds a vibrant transition in Hainan’s landscape.
In April, Hainan, China experiences a notable warming trend as temperatures begin to rise significantly. The month starts with a minimum of -9°C (16°F) and reaches a comfortable maximum of 25°C (78°F), marking a welcome transition from the chilly remnants of winter. The average temperature climbs to 7°C (44°F), indicating a shift towards milder weather, which is ideal for outdoor activities and sightseeing. Compared to the much colder months of January through March, where temperatures hovered dangerously low, April offers a refreshing respite, hinting at the warmer days to come. This month truly sets the stage for the lush and vibrant summer that Hainan is known for, making it an appealing time for both locals and travelers to relish in the island's natural beauty.
In April, Hainan, China, experiences a noticeable increase in precipitation, with 32 mm (1.3 in) recorded from 4 rainy days. This surge marks a transition from the relatively dry months of early the year, where January and February saw a mere 5 mm and 6 mm respectively. As spring unfolds, the gradual rise in rainfall continues, setting the stage for more substantial precipitation in the months to follow, particularly in May and June, which see a dramatic leap to 72 mm (2.8 in) and 126 mm (4.9 in), respectively. April's rainfall signifies not just a shift in weather patterns but also heralds the impending wet season, as the island gears up for the deluge of summer rain that follows.
April marks a notable shift in humidity levels in Hainan, China, as it drops to 59%, the lowest point so far this year. This decline follows a trend of decreasing humidity from January's 75% down to March's 63%. While April offers a welcome reprieve from the heavy dampness of the preceding months, the air remains comfortably humid compared to the summer peak that looms ahead. As the season transitions, Hainan's humidity will begin to climb again in May, starting a journey back toward the sweltering humidity of July and August, which often exceeds 84%. Thus, April serves as both a breath of fresh air and a brief interlude before the tropical humidity surge takes center stage.
In April, Hainan experiences a noticeable increase in UV exposure, with the UV Index peaking at 6, categorizing it as high. This shift marks a significant leap from the moderate levels of 2-4 seen in previous months. With a burn time reduced to just 25 minutes, it’s essential for residents and visitors to take protective measures when enjoying the outdoors. This upward trend in UV levels will continue as May approaches, where the Index escalates further to 7. As the region transitions into summer, awareness of UV radiation becomes increasingly important; for more information, check the Hainan UV Index.
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As April dawns in Hainan, it ushers in an impressive 302 hours of sunshine, marking a delightful continuation of the upward trend in brightness that began in January. Following a steady increase from 182 hours in January to 239 hours in February and 283 hours in March, the month of April showcases the region's warmth, nudging sun-seekers closer to summer. This surge in sunlight is a precursor to May's peak, where 330 hours beckon, encapsulating Hainan's reputation as a tropical paradise. Overall, the steady rise in daylight hours not only enhances the island's vibrant landscapes but also invites visitors to revel in the diverse outdoor activities and experiences that flourish under the April sun.
In April, Hainan, China, sees a 51% chance of sunny weather, mirroring the trend of early spring as temperatures begin to rise. This figure is consistent with March's percentage but represents a notable decrease from the sunny conditions frequently experienced in January, which boasts a 62% likelihood of clear skies. As the month progresses into the warmer season, the likelihood of sunny days dips slightly through May and June, ultimately reaching a low of 27% in July. However, Hainan's climate reveals a gradual improvement in sunlit days as autumn approaches, with October rekindling brighter prospects at 60%. Overall, while April's sunshine chances are moderate, it remains a delightful time to experience Hainan's vibrant spring beauty before the summer humidity sets in.
As spring unfolds in Hainan, China, the daylight duration experiences a significant increase, with April basking in 13 hours of sunlight. This marks a notable leap from the 11 hours in March, showcasing the region's transition into longer days as it heads towards summer. Following the upward trend, May brings even more sunlight, offering 15 hours of daylight, which remains steady through June and July. This seasonal progression highlights Hainan's vibrant climate, where longer days are a precursor to the warmth of summer, before gradually tapering off as the year advances. By the time autumn arrives in September, the daylight dips to 12 hours, continuing to decrease through the latter months, reminding residents and visitors alike of the cyclical nature of the seasons.
In April, Hainan, China, experiences a notable uptick in wind speed, with an average of 4.0 m/s (9 mph), making it the breeziest month of the year. This increase from the previous months highlights a trend where spring ushers in refreshing winds, inviting residents and visitors alike to enjoy outdoor activities. Following this peak, the wind speed gently declines in May, settling at 3.7 m/s (8 mph), before dipping into the calmer months of June and July. Overall, the wind patterns reflect a seasonal shift, with April standing out as a time of invigorating gusts that perfectly complement the island’s vibrant landscape.
Weather in Hainan varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Hainan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of April and January, it’s evident that April experiences significantly milder temperatures, with a minimum of -9°C (16°F) and an average of 7°C (44°F), peaking at a comfortable 25°C (78°F). In contrast, January is much colder, with a staggering minimum temperature of -38°C (-36°F) and an average of -20°C (-4°F), only reaching a maximum of -3°C (27°F). Additionally, April has higher precipitation levels at 32 mm (1.3 in) over four days, while January sees minimal precipitation of just 5 mm (0.2 in) on a single day. The humidity is also higher in January at 75%, compared to 59% in April. For more detailed insights on January conditions, you can visit Hainan weather in January.
April experiences a significant temperature rise compared to February, with minimums of -9°C (16°F) versus February's chilly lows of -33°C (-27°F). The average temperature in April reaches a more comfortable 7°C (44°F), while February struggles at a frigid -15°C (5°F). Additionally, April brings more variability in weather, with a maximum temperature soaring to 25°C (78°F) compared to February's peak of 8°C (47°F). Precipitation also sees a notable increase, with April receiving 32 mm over 4 days, contrasted with February's meager 6 mm over just 1 day. The humidity in April is slightly lower at 59%, compared to the colder, more humid February, which has a humidity level of 70%. For detailed insights into the February weather in Hainan, you can check Hainan weather in February.
April experiences a significant temperature increase compared to March, with minimums of -9°C (16°F) and an average of 7°C (44°F) compared to March's chilling minimum of -31°C (-23°F) and an average of -3°C (26°F). The maximum temperature in April rises to a pleasant 25°C (78°F), while March peaks at a mild 17°C (63°F). Precipitation is slightly higher in April, totaling 32 mm (1.3 in) over four days, compared to March's 13 mm (0.5 in) over three days. Interestingly, humidity remains relatively stable between the two months, with April at 59% and March slightly higher at 63%. For more detailed information on March's weather, you can check Hainan weather in March.
April and May present distinct weather patterns. In April, temperatures range from a chilly minimum of -9°C (16°F) to a pleasant maximum of 25°C (78°F), with an average of 7°C (44°F). The month experiences relatively low precipitation, totaling 32 mm (1.3 in) over 4 days, accompanied by a humidity level of 59%. In contrast, May sees a significant rise in temperatures, with a minimum of 0°C (33°F), an average of 14°C (58°F), and a peak of 31°C (89°F). However, May also brings increased rainfall, totaling 72 mm (2.8 in) over 11 days, with a slight uptick in humidity to 61%. For more detailed insights, you can check this link: Hainan weather in May.
April and June present contrasting weather patterns, with April characterized by cooler temperatures and lower humidity. In April, temperatures range from a minimum of -9°C (16°F) to a maximum of 25°C (78°F), averaging around 7°C (44°F) and experiencing only 32 mm (1.3 in) of precipitation over four days, resulting in a humidity level of 59%. In stark contrast, June brings warmer weather, with temperatures ranging from a minimum of 6°C (43°F) up to a maximum of 36°C (97°F) and an average of 19°C (67°F). The month of June also sees a significant uptick in rainfall, with 126 mm (4.9 in) of precipitation spread across 15 days, raising the humidity to 79%. For more detailed insights on June weather, visit Hainan weather in June.
In April, the weather is much cooler, with temperatures ranging from a chilling -9°C (16°F) at night to a mild average of 7°C (44°F) during the day, and peaking at a comfortable 25°C (78°F). This month receives only 32 mm (1.3 in) of precipitation spread over four days, and the humidity levels are relatively moderate at 59%. In contrast, July experiences significantly warmer temperatures, with nighttime lows of 13°C (57°F), average highs around 23°C (74°F), and maximums soaring up to 34°C (93°F). However, July is also much wetter, with 175 mm (6.9 in) of rain falling on 17 days, and humidity levels rising to 84%. For more information on the weather conditions during this month, visit Hainan weather in July.
April and August present contrasting weather patterns. In April, temperatures range from a minimum of -9°C (16°F) to a maximum of 25°C (78°F), with an average of 7°C (44°F). The month experiences relatively low precipitation at 32 mm (1.3 in) over just four days, and the humidity stands at 59%. In contrast, August features milder temperatures, with a minimum of 6°C (42°F), an average of 20°C (69°F), and a maximum reaching 29°C (85°F). However, it also brings significant rainfall, totaling 183 mm (7.2 in) across 17 days, and higher humidity at 87%. For more detailed information about August weather, you can visit Hainan weather in August.
April and September present contrasting weather conditions. In April, temperatures range from a chilly -9°C (16°F) at night to a pleasant 25°C (78°F) during the day, with an average of 7°C (44°F). The month receives about 32 mm (1.3 in) of precipitation over just four days, with humidity levels around 59%. In contrast, September sees warmer temperatures, starting at a minimum of 0°C (33°F) and reaching a max of 28°C (83°F), resulting in an average of 15°C (59°F). This month experiences significantly higher rainfall at 103 mm (4.1 in), spread over nine days, and humidity rises to 85%. For more details on September weather, you can check Hainan weather in September.
April and October both exhibit cool to mild temperatures, but there are notable differences in their weather patterns. In April, temperatures range from a minimum of -9°C (16°F) to a maximum of 25°C (78°F), with an average of 7°C (44°F) and a moderate humidity of 59%. The month experiences about 32 mm (1.3 in) of precipitation over just 4 days. In contrast, October has slightly cooler temperatures, with a minimum of -10°C (15°F) and a maximum of 27°C (80°F), averaging around 6°C (42°F). Although it receives less rainfall—22 mm (0.9 in) over the same number of days—it has considerably higher humidity at 80%. For more detailed insights on weather conditions in October, you can check out Hainan weather in October.
April and November present stark contrasts in weather conditions. In April, temperatures fluctuate between a brisk minimum of -9°C (16°F) and a warm maximum of 25°C (78°F), with an average of 7°C (44°F) and relatively low humidity at 59%. The month sees about 32 mm (1.3 in) of precipitation spread over four days, indicating a transitional period into spring. In contrast, November is much colder, with temperatures plunging to a minimum of -25°C (-14°F) and only reaching a maximum of 14°C (57°F), averaging around -6°C (21°F). This month has slightly lower precipitation at 22 mm (0.9 in) over the same four days, alongside a slightly higher humidity of 61%. Overall, while April offers a milder climate with the promise of warmer days, November brings the chill of winter closer, demanding heavier clothing and preparation for colder weather. For more details on weather patterns, you can check Hainan weather in November.
April and December present stark contrasts in weather conditions. In April, temperatures vary significantly, with a minimum of -9°C (16°F) and a maximum reaching 25°C (78°F), averaging around 7°C (44°F). This month also sees moderate precipitation, totaling 32 mm (1.3 in) over four days, and a humidity level of 59%. In contrast, December ushers in much colder weather, with temperatures plummeting to a minimum of -32°C (-26°F) and a maximum of just 6°C (43°F), averaging a frigid -18°C (0°F). Precipitation is significantly lower at 9 mm (0.3 in) across only two days, accompanied by a slightly higher humidity of 60%. For those interested in exploring a different climate during the winter, Hainan weather in December offers a milder alternative.
As April unfolds in Hainan, the weather begins its transition towards warmer days, with temperatures climbing higher than in the cooler months preceding it. This shift brings a welcome relief from the chill, inviting outdoor adventures amidst moderately humid conditions. While April experiences slightly more rainfall than earlier months, the overall precipitation remains manageable, allowing for plenty of sunshine between brief showers. With an emerging vibrancy, this month sets the stage for the lush beauty of Hainan's spring, making it a delightful time to explore the island. For a deeper dive into what to expect throughout the year, check out our comprehensive overview of the Hainan Climate.