Last updated: August 21, 2025
In Haikou, China, April ushers in a blend of warmth and humidity, making it an intriguing month for weather enthusiasts. With a maximum temperature reaching a balmy 33°C (92°F) and a cool minimum of 3°C (38°F), daily averages hover around a comfortable 17°C (63°F). However, this pleasant warmth comes accompanied by high humidity levels at 86%, making the air feel quite muggy. Rainfall is also notable, with 97 mm (3.8 in) accumulated over 13 days, contributing to the lush, vibrant surroundings of the city. Whether you’re planning outdoor activities or seeking refuge indoors, April’s climate in Haikou is both dynamic and captivating.
In April, Haikou, China experiences a delightful transition into warmer weather, with temperatures indicating a gradual rise from the cooler months. The minimum temperature hovers around 3°C (38°F), while the average climbs to a comfortable 17°C (63°F), setting the stage for pleasant outdoor activities. With a notable maximum reaching 33°C (92°F), this month marks the start of warmer days that beckon locals and visitors alike to enjoy the burgeoning spring. As Haikou shifts from the briskness of early spring to the heat of summer, April's temperatures reflect a significant warming trend, promising a vibrant atmosphere perfect for exploration and leisure.
In April, Haikou experiences a notable shift in precipitation patterns, receiving 97 mm (3.8 in) of rainfall over 13 days. This amount marks a decrease from March's higher total of 122 mm (4.8 in), reflecting a gradual transition towards drier conditions as the region moves closer to its peak rainy months. The fluctuation in rainfall continues a trend seen in the early months of the year, where precipitation steadily climbed from 44 mm in January to a peak in June. This April rainfall supports the lush greenery characteristic of Haikou, providing essential moisture before the summer deluge begins, which is evidenced by the sharp increase to 207 mm in May and 309 mm in June. As April unfolds, the city's atmosphere remains vibrant and fresh, setting the stage for the warmer, wetter months ahead.
As April arrives in Haikou, China, the climate begins to shift towards its peak humidity levels, with readings climbing to an impressive 86%. This marks a significant increase from 81% in March, reflecting a steady upward trend as the region transitions into the warmer months. Following April, May continues this trend, reaching 87%, while the summer months of June and July see humidity levels soar to a sweltering 91%. Overall, April serves as a pivotal month in Haikou’s annual climate cycle, showcasing the gradual rise in humidity that correlates with the approach of summer, creating a lush and vibrant atmosphere in this coastal city.
In April, Haikou experiences a dramatic increase in the UV Index, soaring to 11, which falls under the extreme exposure category. This spike in UV radiation means that outdoor enthusiasts should take extra precautions, as the recommended burn time is now a mere 10 minutes. As the months transition from January's UV Index of 6 to April's 11, it’s clear that sun safety becomes increasingly crucial, with exposure levels classified as very high in February and March as well. Following April, May and June hold steady at a UV Index of 12, highlighting a consistent pattern of extreme UV levels throughout these months. For those planning activities in Haikou, it’s essential to stay informed about the UV Index and sun safety tips by checking the latest updates at Haikou UV Index.
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In April, Haikou, China, experiences a delightful surge in sunshine, basking in 245 hours of radiant daylight. This marks a substantial increase from the previous months, contributing to the city's vibrant spring atmosphere. Following the upward trajectory set in March, where the hours of sunshine reached 206, April continues to ignite enthusiasm for outdoor activities and exploration. As the season transitions into warmer days, the sunshine peaks further in May with 254 hours, ultimately leading into the sultry summer months. The clear pattern illustrates not just the growing light availability but also a tangible shift towards a lively and energetic environment, making April a true gem in Haikou's climatic tapestry.
As April rolls into Haikou, China, the likelihood of enjoying sunny weather remains a modest 26%, showing a slight dip from March’s 22%. This period is part of a broader trend marked by declining chances of sunshine as the region transitions from the brighter months of winter, where January boasts a healthy 53%, to the rainy days of summer. Interestingly, while April's figures might seem low compared to the earlier months, they still stand as a favorable option amidst the upcoming wet season, particularly in contrast to May’s meager 14%. Thus, for those hoping to bask in the sunshine, planning outdoor activities in early April could still yield rewarding moments under the sun before the clouds take over.
As spring unfolds in Haikou, China, April marks a delightful transition with 12 hours of daylight, a notable increase compared to the earlier months of the year. Following a gradual rise from 10 hours in January to 11 hours in both February and March, April heralds a longer day that continues to expand into the coming months, where May enjoys 13 hours of sunlight. This trend of increasing daylight not only brightens the landscape but also enhances outdoor activities and experiences. As summer approaches, Haikou will bask in consistent sunlight, making it a perfect time to explore the vibrant surroundings and enjoy the warmth of the season.
In April, the winds in Haikou, China maintain a gentle rhythm, with an average speed of 1.6 m/s (4 mph). This modest breeze evokes a tranquil atmosphere, consistent with the preceding months. Throughout winter and early spring, wind speeds fluctuate slightly, hovering around 1.6 to 1.8 m/s. Interestingly, as the year progresses into May and June, the winds begin to calm, reaching their lowest at 1.4 m/s (3 mph). However, the summer months bring a resurgence, with a brisk 1.8 m/s (4 mph) recorded in July. This pattern of mild winds invites a sense of serenity, making April an ideal time to enjoy the subtle caress of the breeze as it heralds the warmer days ahead.
Weather in Haikou varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Haikou, focusing on differences in temperature, rainfall, humidity, and UV levels.
April weather shows a significant contrast to January, characterized by warmer temperatures and higher humidity. While January temperatures range from a chilly -5°C (24°F) to a mild 26°C (79°F), April experiences a much broader range, from a cool 3°C (38°F) to a hot 33°C (92°F) with an average of 17°C (63°F). Additionally, April sees considerable precipitation, accumulating about 97 mm (3.8 in) over 13 days, while January is much drier, with only 44 mm (1.7 in) of rain across 7 days. The humidity also rises notably in April at 86%, compared to January's 65%. For more details on January weather, visit Haikou weather in January.
April's weather is significantly warmer and more humid than February's. With average temperatures reaching 17°C (63°F) and highs of up to 33°C (92°F), it offers a noticeable contrast to February, where the average is a cooler 9°C (48°F) and the maximum is 28°C (82°F). Additionally, April experiences more precipitation, with 97 mm (3.8 in) falling over 13 days compared to February's 65 mm (2.6 in) across 9 days. The higher humidity in April at 86% further emphasizes the shift from February's more comfortable 71%. For more details, you can check Haikou weather in February.
In comparing the weather of March and April, April generally features warmer temperatures, with an average of 17°C (63°F) compared to March's average of 13°C (56°F). Notably, April sees a wider temperature range, with a minimum of 3°C (38°F) and a maximum of 33°C (92°F), while March has a minimum of 0°C (33°F) and a maximum of 31°C (88°F). However, April experiences slightly less precipitation at 97 mm (3.8 in) over 13 days, compared to March's 122 mm (4.8 in) over 15 days. Humidity is also higher in April at 86%, compared to 81% in March. For detailed weather insights, check Haikou weather in March.
April and May present distinct weather patterns, with May generally showcasing milder temperatures and increased humidity. In April, temperatures range from a minimum of 3°C (38°F) to a maximum of 33°C (92°F), with an average of 17°C (63°F). However, May sees a significant rise in temperatures, with a minimum of 10°C (50°F), an average of 22°C (71°F), and a maximum soaring to 39°C (103°F).
Precipitation is also notable during May, totaling 207 mm (8.2 in) over 15 days, compared to April's 97 mm (3.8 in) over 13 days, making it a wetter month overall. Interestingly, humidity remains relatively high and consistent between the two months, with April at 86% and May slightly higher at 87%. For those interested in more detailed weather information, please check Haikou weather in May.
April and June present notably different weather conditions. In April, temperatures range from a cool minimum of 3°C (38°F) to an average of 17°C (63°F), with a maximum reaching 33°C (92°F). The month sees significant rainfall, totaling 97 mm (3.8 in) over about 13 days, and the humidity is relatively high at 86%. In contrast, June is considerably warmer, with temperatures varying from a minimum of 15°C (59°F) to an average of 25°C (76°F), peaking at 37°C (99°F). Rainfall increases substantially to 309 mm (12.1 in) over approximately 20 days, and humidity remains similarly high at 87%. For more detailed insights into June weather, visit Haikou weather in June.
April and July present contrasting weather patterns. In April, temperatures range from a cool 3°C (38°F) at night to a warm 33°C (92°F) during the day, with an average of 17°C (63°F). The month sees notable precipitation, with 97 mm (3.8 in) spread over 13 days, and humidity levels are relatively high at 86%. In contrast, July is significantly warmer, with minimum temperatures starting at 20°C (69°F) and peaking at a scorching 37°C (100°F), averaging 28°C (82°F). Rainfall also increases in July, totaling 199 mm (7.9 in) over 18 days, while humidity rises slightly to 91%. For more details, you can explore Haikou weather in July.
In comparing the weather between April and August, notable differences emerge in both temperature and precipitation. April experiences a temperature range from a cool minimum of 3°C (38°F) to a maximum of 33°C (92°F), with an average of 17°C (63°F). In contrast, August is significantly warmer, featuring a minimum temperature of 21°C (70°F), an average of 28°C (82°F), and soaring highs that can reach 38°C (100°F). Precipitation levels also differ, with April receiving 97 mm (3.8 in) of rainfall over 13 days, while August sees increased rainfall of 159 mm (6.3 in) across 17 days. Humidity remains relatively consistent, hovering around 86% in April and slightly increasing to 87% in August. For more details, you can check Haikou weather in August.
April and September present distinct weather profiles, reflecting the transition of seasons. In April, temperatures range from a chilly 3°C (38°F) to a warm 33°C (92°F), with an average of 17°C (63°F). The month sees considerable precipitation, with 97 mm (3.8 in) of rain over 13 days, coupled with high humidity at 86%. In contrast, September offers a milder experience, featuring minimum temperatures of 15°C (59°F) and maximums reaching 37°C (99°F), with an average of 25°C (77°F). Rainfall is similar, with 98 mm (3.9 in) over 12 days, but the humidity is notably lower at 72%. For more detailed information on the weather during this month, you can check Haikou weather in September.
In April, the weather tends to be a bit cooler with temperatures ranging from a minimum of 3°C (38°F) to a maximum of 33°C (92°F) and an average of 17°C (63°F). This month also experiences a higher level of precipitation, with about 97 mm (3.8 in) falling over 13 days, alongside higher humidity levels of 86%. In contrast, October features a milder climate with temperatures starting at a minimum of 8°C (47°F) and reaching up to 35°C (96°F), with an average of 19°C (67°F). Precipitation is less frequent, averaging around 66 mm (2.6 in) over just 7 days, and the humidity drops to 74%. For more detailed insights on October weather conditions, check out Haikou weather in October.
April and November present distinct weather characteristics. In April, temperatures range from a minimum of 3°C (38°F) to a maximum of 33°C (92°F), with an average of 17°C (63°F). The month experiences considerable precipitation, totaling 97 mm (3.8 in) over approximately 13 rainy days, contributing to a high humidity level of 86%. In contrast, November sees cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 31°C (88°F), averaging 14°C (58°F). This month is drier, recording 64 mm (2.5 in) of rain over about 8 days, resulting in a lower humidity of 80%. For more specific insights, check out Haikou weather in November.
April and December present contrasting weather characteristics. In April, temperatures can range dramatically from a chilly 3°C (38°F) at night to a warm 33°C (92°F) during the day, with an average of about 17°C (63°F). The month also sees significant precipitation, with 97 mm (3.8 in) falling over roughly 13 days, contributing to a high humidity level of 86%. In contrast, December experiences a milder climate, with minimum temperatures dipping to -2°C (28°F) and a maximum of 28°C (83°F), averaging around 9°C (48°F). Rainfall is considerably less, totaling 38 mm (1.5 in) over just 8 days, and humidity is lower at 78%. For more details on December weather, you can visit Haikou weather in December.
April in Haikou marks a transition into warmer days, with temperatures gradually rising and the city becoming more humid as it approaches the summer season. Unlike the cooler and drier months preceding it, April experiences increased precipitation, with rain making appearances on about half the days, adding a lush vibrancy to the landscape. The consistently high humidity amplifies the warmth, creating a characteristic tropical atmosphere. For those interested in more detailed insights on what to expect, the Haikou Climate page provides comprehensive information on the evolving weather patterns throughout the year.