Last updated: August 21, 2025
In April, Haikou, China experiences a delightful blend of warmth and humidity, with maximum temperatures reaching up to 33°C (91°F) and an average of 18°C (65°F). Visitors can expect a cozy environment, though nighttime lows can dip to 5°C (41°F). This month is marked by frequent rainfall, accumulating to 179 mm (7.0 in) over approximately 14 days, making the atmosphere quite humid at 86%. Ideal for those seeking a tropical escape, April in Haikou offers a vibrant climate that welcomes both adventure seekers and leisurely travelers alike.
April in Haikou, China, marks a delightful transition in temperatures, with minimums rising to 5°C (41°F) and averages reaching 18°C (65°F). This month experiences a significant leap in warmth, peaking at a comfortable maximum of 33°C (91°F), showcasing a vibrant departure from the cooler early months of the year. As spring unfolds, the temperatures reflect a clear upward trend, hinting at the impending heat of summer. The steady increase in daytime warmth invites outdoor activities, making April an ideal time to explore the charm of Haikou before the sweltering summer sets in. The balance of warmth and mild evenings ensures a pleasant atmosphere, perfect for both locals and visitors alike.
In April, Haikou experiences a significant rainfall, averaging 179 mm (7.0 in) over 14 days. This marks a slight decrease from March's peak of 205 mm (8.1 in), illustrating a transition into a wetter season as the year progresses. Notably, this month serves as a precursor to May, which typically witnesses the heaviest rainfall of the year at 244 mm (9.6 in). The April showers are essential for nourishing the region's lush landscapes, setting the stage for a vibrant and lively atmosphere as the climate warms. As the city shifts from the cooler months, the increased precipitation foreshadows a lush summer ahead, drawing residents and visitors alike to embrace the verdant surroundings.
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.
As April rolls into Haikou, the UV Index reaches a notable 10, placing it in the very high exposure category. With this sharp increase from the previous months, where the index was 9 in March, residents and visitors alike should take extra precautions. The burn time dips to just 15 minutes, emphasizing the importance of proper sun protection. This trend of rising UV exposure continues into May, where the index escalates to an extreme level of 11. As the month progresses, individuals should remain vigilant in their sun safety practices, especially with summer on the horizon. For more details on UV trends throughout the year, visit Haikou UV Index.
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As April unfolds in Haikou, China, the city basks in 242 hours of sunshine, marking a delightful peak in the spring season. The trend shows a steady increase in daylight hours from January’s 159 hours to the vibrant days of April, highlighting the transition from winter’s chill to the warmth of spring. This month serves as a prelude to the summer months, where sunshine reaches its zenith, peaking in July with 302 hours. After April, the sun maintains a strong presence through May, and while June sees a slight dip, the overall trajectory remains high. The months that follow promise sunny adventures, making Haikou an inviting destination for those seeking to enjoy the outdoors under the bright blue sky.
As April unfolds in Haikou, the likelihood of sunny weather takes a dip, with only 20% chance of sunshine. This is notably lower than the preceding months, where January boasts a bright 58% and February a modest 36%. Interestingly, while the spring months typically bring hope for sunnier skies, March already reveals a trend towards cloudier days, dropping to 25%. As the region transitions into the steamy summer months, this gradual decline correlates with a pattern of fluctuating sunshine, where the sun makes a comeback in September with a promising 61%. For those planning their April activities, it may be wise to embrace the unpredictability of Haikou's weather and prepare for a mix of sun and clouds.
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, Haikou experiences a steady and gentle breeze with an average wind speed of 2.0 m/s (5 mph), mirroring the calmness of the previous three months. This consistency reflects the region's tranquil climate as it transitions into the warmer months. Although there's a slight dip in wind speed expected in May, the overall trend suggests a gradually increasing breeze as summer approaches, peaking in July at 2.2 m/s (5 mph) before tapering off again in August and September. The mild April winds not only enhance outdoor activities but also set the stage for the vibrant seasonal changes ahead, making it a delightful time to explore the beauty of Haikou.
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 and January present stark contrasts in weather patterns. In April, temperatures range from a minimum of 5°C (41°F) to a maximum of 33°C (91°F), with an average of 18°C (65°F), while January sees cooler temperatures, with a minimum of -5°C (24°F) and a maximum of 24°C (75°F), averaging at 8°C (46°F). Additionally, April is much wetter, experiencing 179 mm (7.0 in) of precipitation over 14 days, compared to January’s 70 mm (2.7 in) over just 9 days. Humidity levels are also higher in April at 86%, whereas January has a more comfortable 65%. For more details, you can explore Haikou weather in January.
April and February exhibit contrasting weather patterns. In February, temperatures range from a chilly -3°C (26°F) at night to a comfortable maximum of 26°C (79°F) during the day, with an average temperature of 9°C (48°F). The month sees a total precipitation of 83 mm (3.3 in) across about 12 days, accompanied by a humidity level of 71%. In contrast, April experiences a significant temperature increase, ranging from a minimum of 5°C (41°F) to a maximum of 33°C (91°F), with an average of 18°C (65°F). Additionally, April has more rainfall, totaling 179 mm (7.0 in) over 14 days, and a higher humidity level of 86%. This comparison highlights the shift from the cool, dry conditions of February to the warm, wetter climate in April. For more details, check out Haikou weather in February.
In comparing the weather between March and April, April boasts a slightly warmer climate with average temperatures reaching 18°C (65°F) compared to March's average of 14°C (58°F). The maximum temperature in April also rises to 33°C (91°F), while March peaks at 30°C (86°F). However, April experiences more rainfall, with total precipitation of 179 mm (7.0 in) over 14 days, compared to March's 205 mm (8.1 in) spread across 16 days. Additionally, April has a higher humidity level at 86%, compared to March's 81%. For more detailed information, you can check this link: Haikou weather in March.
April and May present a notable transition in weather patterns. In April, temperatures range from a minimum of 5°C (41°F) to a maximum of 33°C (91°F), with an average of 18°C (65°F). The month experiences around 179 mm (7.0 in) of precipitation over 14 days, coupled with a high humidity level of 86%. In contrast, May sees warmer temperatures, with a minimum of 11°C (52°F), an average of 23°C (74°F), and reaching up to 36°C (97°F) at its peak. Additionally, May is wetter, receiving 244 mm (9.6 in) of rainfall across 16 days, and maintaining similar humidity levels at 87%. For more detailed information, check out Haikou weather in May.
April and June present quite contrasting weather patterns. In April, temperatures range from a minimum of 5°C (41°F) to a maximum of 33°C (91°F), averaging around 18°C (65°F), coupled with a significant amount of precipitation totaling 179 mm (7.0 in) over 14 days. The humidity is notably high at 86%, making it feel quite damp. In contrast, June features much warmer temperatures, with minimums at 17°C (63°F), average highs of 26°C (79°F), and peaks reaching up to 36°C (98°F). This month experiences even heavier rainfall, with precipitation at 407 mm (16.0 in) spread across 20 days, and a slightly higher humidity level of 87%. For more insights, check out Haikou weather in June.
April and July present contrasting weather patterns. In April, temperatures range from a chilly 5°C (41°F) at night to a pleasant average of 18°C (65°F) during the day, peaking at a warm 33°C (91°F). However, this month sees significant rainfall, with 179 mm (7.0 in) of precipitation spread over 14 days and humidity levels sitting at a high 86%. In contrast, July brings much warmer temperatures, with nighttime lows of 21°C (70°F), an average of 29°C (85°F), and maximums soaring to 39°C (103°F). Additionally, July is wetter, receiving 300 mm (11.8 in) of rain over 16 days, and humidity increases to 91%. For a more detailed look at July's climate, you can visit Haikou weather in July.
April and August present contrasting weather characteristics. In April, temperatures range from a cool minimum of 5°C (41°F) to a warm maximum of 33°C (91°F), with an average of 18°C (65°F) and significant precipitation totaling 179 mm (7.0 in) across 14 days, resulting in high humidity levels of 86%. In contrast, August experiences much warmer conditions, with minimum temperatures of 22°C (71°F) and maximums soaring to 41°C (105°F), averaging around 30°C (86°F). Precipitation decreases to 119 mm (4.7 in) over 13 days, while humidity remains slightly elevated at 87%. This shift highlights the transition from a mild spring month to a hot summer peak. For more details, you can check Haikou weather in August.
April and September exhibit distinct contrasts in weather patterns. In April, temperatures range from a chilly 5°C (41°F) to a warm 33°C (91°F), with an average of 18°C (65°F). This month is characterized by significant rainfall, with 179 mm (7.0 in) of precipitation over 14 days, resulting in high humidity levels of 86%. In contrast, September offers a much warmer climate, with temperatures starting at 17°C (63°F) and peaking at an impressive 38°C (101°F), averaging around 27°C (80°F). Rainfall is notably lower, with only 71 mm (2.8 in) occurring over 9 days, and humidity drops to a more comfortable 72%. For more details on weather conditions in September, visit Haikou weather in September.
April and October display distinct differences in weather patterns. In April, temperatures range from a cooler minimum of 5°C (41°F) to a warm maximum of 33°C (91°F), with an average of 18°C (65°F). The month is characterized by significant rainfall, accumulating to about 179 mm (7.0 in) over 14 days, and high humidity levels reaching 86%. In contrast, October boasts milder temperatures with a minimum of 11°C (51°F), an average of 21°C (70°F), and a peak of 36°C (97°F). Rainfall is considerably less in October, totaling only 40 mm (1.6 in) across just 6 days, and the humidity drops to a more comfortable 74%. For more details, check out Haikou weather in October.
April and November showcase distinct weather patterns. In April, temperatures fluctuate more dramatically, ranging from a low of 5°C (41°F) to a high of 33°C (91°F), with an average of 18°C (65°F). This month is characterized by substantial rainfall, accumulating 179 mm (7.0 in) over about 14 days, and humidity levels are relatively high at 86%. In contrast, November experiences cooler temperatures, with a minimum of 3°C (37°F), an average of 15°C (59°F), and a maximum of 29°C (85°F). Precipitation is considerably less at 70 mm (2.8 in) over approximately 10 days, and humidity is slightly lower at 80%. This noticeable variation highlights the transitional nature of both months, making April much wetter and warmer compared to the cooler and drier November. For more details, see Haikou weather in November.
April and December showcase contrasting weather patterns. In April, temperatures can range from a mild 5°C (41°F) to a hot 33°C (91°F), with an average of 18°C (65°F), accompanied by significant precipitation of 179 mm (7.0 in) over about 14 days, making the month feel quite humid at 86%. In stark contrast, December features cooler temperatures, with a minimum of -2°C (28°F) and an average around 9°C (49°F), peaking at 23°C (74°F). Additionally, December experiences much less rainfall, with only 57 mm (2.2 in) across 8 days and a lower humidity level of 78%. For more insights into the specifics of December weather, visit Haikou weather in December.
April in Haikou ushers in a delightful shift in weather, characterized by warm temperatures and increased humidity, setting it apart from the cooler winter months. As the city transitions toward summer, the warmth begins to envelop the region, reaching pleasant highs while still maintaining refreshing breezes at night. With an average temperature that comfortably straddles day and night, it’s a month of budding life and vibrancy. However, don't forget to prepare for sporadic downpours, as April sees a notable increase in precipitation over its predecessors. This blend of warmth and moisture results in a lush atmosphere perfect for exploration. For a deeper understanding of Haikou's climate patterns throughout the year, visit Haikou Climate.