Last updated: August 21, 2025
Experience the vibrant charm of Haikou, China in April, where the weather embraces the onset of spring with enticing warmth. The temperatures soar to a maximum of 33°C (92°F), averaging around 25°C (77°F), providing a delightful escape from the chill. However, travelers should be prepared for 13 days of rain, contributing to an overall precipitation of 87 mm (3.4 in), with humidity levels hovering around 80%. This combination of warmth and rainfall creates a lush environment, perfect for exploring Haikou's natural beauty and cultural offerings.
In April, Haikou begins to shake off the cooler months, welcoming warmer temperatures that hint at the approaching summer. With a minimum of 17°C (63°F) and a comfortable average of 25°C (77°F), the island's climate becomes increasingly pleasant. By day, temperatures can reach a maximum of 33°C (92°F), making it an ideal time for outdoor activities and exploration. This month marks a notable upward trend from March, where temperatures were still milder, and sets the stage for the hotter weather of May and June. As spring transitions to summer, Haikou reveals its charm, enticing visitors with warm sunshine and a vibrant atmosphere.
In April, Haikou experiences a significant uptick in precipitation, with rainfall reaching 87 mm (3.4 in) over 13 days. This marks a noticeable increase compared to the preceding months, where average rainfall hovered around 30-39 mm. As the city transitions into the wetter season, April serves as a key precursor to May and June, which witness even heavier showers. The increased rainfall not only revitalizes the landscape but also signals the arrival of more humid conditions, setting the stage for the thunderous downpours typical of summer. Comparatively, April's combination of moderate precipitation days and substantial rainfall highlights its role as a vital month in Haikou's climatic calendar.
As April settles in Haikou, China, residents can expect a notable increase in humidity, with levels rising to 80%, a trend that continues the upward trajectory observed since January. This month marks a significant step in the transition towards the summer months, as humidity gradually climbs from 74% in January to 81% by May. The escalating moisture in the air not only enhances the tropical feel of the city but also signals the approach of the hotter, more humid summer season. As the warmth intensifies, the high humidity levels can create a refreshing yet sticky atmosphere, making Haikou’s climate distinctly tropical as April paves the way for the upcoming months.
In April, Haikou, China, experiences an extreme UV Index of 12, similar to the preceding month of March. This level of intensity necessitates a cautionary approach, as the burn time is a brief 10 minutes—a stark reminder for sun-seekers to prioritize skin protection during outdoor activities. Interestingly, the UV Index remains consistently high from February to October, peaking at 13 in the summer months. With temperatures rising and sun exposure increasing, it's crucial to stay informed about the UV levels. For those sensitive to sunlight, planning ahead becomes essential to enjoy Haikou's vibrant outdoor life safely. For more details, visit Haikou UV Index.
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April in Haikou, China, basks in a delightful 282 hours of sunshine, continuing the trend of brightening days that started in March with 285 hours. This spring month marks a comforting transition as it nestles between the cooler early year months and the sun-drenched summer ahead. The pattern reveals a general increase in sunshine hours leading into the summer, with May reaching its peak at 314 hours. Residents and visitors alike can revel in the abundant sunshine of April, setting the stage for outdoor adventures and the vibrant life that the longer days awaken in Haikou.
In April, Haikou enjoys a moderate 50% chance of sunny weather, marking a slight improvement compared to the preceding months of March and January, which see only 45% and 47% respectively. This month tends to be a transitional period, as the city begins to shake off the lingering clouds of winter, leading towards warmer, sunnier conditions in May. Interestingly, despite April's encouraging outlook, the sunny days take a steep dive in the summer months, particularly in June and July, where the likelihood of sun drops significantly to 17% and 33%. As such, April serves as a prime opportunity for outdoor activities before the intense humidity and rain of summer set in, making it a perfect time to enjoy Haikou's natural beauty.
In Haikou, China, April brings a delightful continuation of longer days, as the daylight duration stabilizes at 12 hours. This trend follows a gradual increase that begins in March with 12 hours of daylight, showcasing a shift from the shorter days of winter. As spring fully sets in, Haikou enjoys a vibrant burst of sunlight, which will peak in May with 13 hours of daylight. Interestingly, the city's daylight hours remain consistent throughout April and May, providing ample time to bask in the sunny climate. The gradual decline starts in late summer, signaling that while the days may shorten, the warmth of the spring sun leaves a lingering glow. This seasonal rhythm not only enhances outdoor activities but also fosters a lively atmosphere in this coastal city.
In April, Haikou experiences a moderate average wind speed of 4.5 m/s (10 mph), continuing a trend of gentle breezes from earlier months. Following the more blustery January winds at 5.0 m/s and a slight lull in February, April's winds offer a pleasant transition as temperatures rise. While March has a comparable wind speed of 4.9 m/s, the overall pattern reveals a gradual decline leading into the warmer months, with May dropping to 4.2 m/s. This rhythm suggests that as spring deepens, the winds soften, providing a serene environment ideal for outdoor activities in Haikou’s enchanting landscape. However, this calm is short-lived, as October sweeps in with a gusty 6.8 m/s, reminding residents of the island's dynamic weather.
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 distinct weather patterns. In April, temperatures range from a minimum of 17°C (63°F) to a maximum of 33°C (92°F), averaging around 25°C (77°F). The month also experiences higher precipitation, with 87 mm (3.4 in) over 13 days and a humidity level of 80%. In contrast, January offers cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 25°C (77°F), averaging 19°C (67°F). Precipitation during January is considerably lower at 23 mm (0.9 in) over just 6 days, with a humidity of 74%. For more detailed information, you can check out Haikou weather in January.
In comparing the weather between April and February, we see a noticeable increase in temperature and humidity as the seasons transition. April boasts minimum temperatures of 17°C (63°F) and averages reaching 25°C (77°F), peaking at 33°C (92°F), while February starts cooler with minimums of 10°C (51°F) and averages around 20°C (68°F) with a maximum of 29°C (84°F). Additionally, April experiences significantly more precipitation, with 87 mm (3.4 in) over 13 days, compared to February’s 39 mm (1.5 in) spread over just 6 days. The humidity also rises slightly in April to 80%, contrasting with February’s 75%. For more details about the weather in February, you can visit Haikou weather in February.
In comparing the weather between March and April, April shows a noticeable increase in temperature, with average highs reaching 33°C (92°F) compared to March's maximum of 32°C (89°F). The minimum temperature also rises slightly, from 16°C (61°F) in March to 17°C (63°F) in April. However, April experiences significantly more rainfall, totaling 87 mm (3.4 in) over 13 days, while March sees only 30 mm (1.2 in) across 8 days. Humidity levels are quite similar, with April at 80% and March at 78%. This indicates that while April is warmer, it is also much wetter than March. For a detailed overview of March weather, check Haikou weather in March.
April and May present a gradual transition in weather patterns. In April, temperatures range from a minimum of 17°C (63°F) to a maximum of 33°C (92°F), with an average of 25°C (77°F). The month sees about 87 mm (3.4 in) of precipitation over 13 days and humidity levels around 80%. In comparison, May experiences slightly warmer conditions, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 34°C (94°F) and an average of 28°C (82°F). Precipitation increases slightly to 90 mm (3.6 in) over 16 days, while humidity remains comparable at 81%. For more details on specific conditions, you can check Haikou weather in May.
In April, temperatures range from a comfortable minimum of 17°C (63°F) to a warm maximum of 33°C (92°F), with an average temperature of 25°C (77°F). The month experiences significant rainfall, totaling 87 mm (3.4 in) over 13 days, along with a humidity level of 80%. Conversely, June sees higher temperatures, with a minimum of 26°C (78°F), an average of 29°C (85°F), and a peak of 35°C (95°F). Precipitation increases to 134 mm (5.3 in) over 15 days, while humidity remains slightly elevated at 81%. For more detailed insights about the weather conditions in June, you can visit Haikou weather in June.
April and July present quite distinct weather patterns. In April, temperatures range from a mild minimum of 17°C (63°F) to a warm maximum of 33°C (92°F), with an average of 25°C (77°F). The month sees 87 mm (3.4 in) of precipitation, falling over 13 days, accompanied by a notable humidity of 80%. In contrast, July experiences higher temperatures with a minimum of 26°C (78°F) and a maximum of 36°C (97°F), averaging 29°C (85°F). Rainfall increases significantly to 169 mm (6.6 in), spread over 18 days, and humidity rises to 87%. For a detailed look at the weather specifics, you can check Haikou weather in July.
April and August exhibit contrasting weather patterns despite sharing similar maximum temperatures. In April, temperatures range from a minimum of 17°C (63°F) to a pleasant average of 25°C (77°F), while August has warmer nights, with a minimum of 26°C (78°F) and an average of 29°C (84°F). Rainfall also differs significantly; April sees 87 mm (3.4 in) over 13 days, whereas August experiences a much wetter climate with 275 mm (10.8 in) across 21 days. Additionally, humidity levels rise slightly in August, with 86% compared to April's 80%. For more detailed information, you can check Haikou weather in August.
April and September both feature warm temperatures, but there are notable differences in their weather patterns. In April, the minimum temperature is slightly lower at 17°C (63°F), with an average of 25°C (77°F) and a maximum reaching 33°C (92°F). Meanwhile, September sees a higher minimum temperature of 25°C (77°F) and an average of 28°C (83°F), while still peaking at 33°C (91°F). Precipitation also varies significantly; April experiences 87 mm (3.4 in) over 13 days, whereas September has higher rainfall at 159 mm (6.3 in) over 18 days. The humidity remains relatively similar, with April at 80% and September at 82%. For a more detailed insight into the weather conditions during September, refer to Haikou weather in September.
In April, the weather typically features a minimum temperature of 17°C (63°F) and an average of 25°C (77°F), reaching maximums of up to 33°C (92°F). While the month sees a decent amount of rainfall totaling 87 mm (3.4 in) over about 13 days, the humidity remains high at 80%. In contrast, October offers slightly warmer temperatures, with a minimum of 21°C (70°F) and an average of 26°C (79°F), peaking at 31°C (88°F). However, October experiences significantly more precipitation, with 215 mm (8.5 in) spread across 18 days, and humidity remains comparable at 81%. For a detailed look at weather specifics, check out Haikou weather in October.
April and November exhibit contrasting yet pleasant weather characteristics. In April, the temperatures range significantly from a minimum of 17°C (63°F) to a maximum of 33°C (92°F), with an average of 25°C (77°F). This month sees more rainfall, accumulating to 87 mm (3.4 in) over about 13 days, contributing to a humid atmosphere with 80% humidity. In comparison, November experiences milder temperatures, with a minimum of 17°C (63°F) and a maximum of 28°C (83°F), averaging around 24°C (75°F). Precipitation is notably lower at 43 mm (1.7 in) over about 9 days, while humidity remains consistent at 80%. For more detailed insights, you can check Haikou weather in November.
April and December present distinct weather patterns, showcasing the transitioning climate of the year. In April, temperatures range from a minimum of 17°C (63°F) to a maximum of 33°C (92°F), with an average of 25°C (77°F). The month experiences considerable precipitation, totaling 87 mm (3.4 in) over 13 days, contributing to a relatively high humidity level of 80%. In contrast, December is cooler, with temperatures varying from a minimum of 13°C (56°F) to a maximum of 27°C (80°F), averaging 20°C (69°F). Precipitation is significantly reduced to 28 mm (1.1 in) over just 8 days, accompanied by a slightly lower humidity of 79%. For a more detailed look at December's climate, visit Haikou weather in December.
April in Haikou marks a vibrant transition into warmer months, where daily temperatures typically rise, bringing a comfortable average of 25°C. Unlike the cooler and drier winter months, April welcomes higher humidity levels around 80%, creating a more tropical atmosphere. Although rainfall increases with approximately 87 mm over about two weeks, the lush surroundings flourish, enhancing the region's natural beauty. Travelers can expect a lively blend of sunny days and refreshing showers, making it a unique month to experience Haikou's charm. For a deeper understanding of what to expect throughout the year, visit Haikou Climate.