Last updated: August 21, 2025
In April, Haikou, China, experiences a delightful transition into warmer weather, with maximum temperatures peaking at 31°C (88°F) and an average temperature of 18°C (64°F). While the minimum dips to a cooler 4°C (40°F), the overall climate remains pleasant. This month sees approximately 64 mm (2.5 in) of precipitation spread over 8 days, adding a refreshing touch to the atmosphere. With a moderate humidity level of 44%, April offers an inviting environment for outdoor activities and exploration in this vibrant coastal city.
In April, Haikou, China, experiences a delightful transition into warmer weather, characterized by mild nights with temperatures dipping to a minimum of 4°C (40°F). As the month unfolds, the city averages a comfortable 18°C (64°F) and reaches a delightful maximum of 31°C (88°F), making it a prime time for outdoor activities. This significant rise from the cooler temperatures of March reflects a trend toward increasingly balmy conditions, heralding the approach of summer. The gradual increase in temperature not only enhances the city's vibrant atmosphere but also invites locals and visitors alike to enjoy the blossoming landscapes beneath a warm sun.
April marks a notable shift in Haikou's precipitation, with 64 mm (2.5 in) of rainfall over 8 days. This is a significant increase from the preceding months, reflecting the onset of the wetter season. As temperatures rise, the city transitions from the relatively dry early months of the year, where January through March averaged just 28 mm (1.1 in) of rainfall, to a more lush and vibrant landscape. The increase in both precipitation and rainy days in April signals the beginning of the monsoon period, setting the stage for May, which sees an almost identical rainfall total of 65 mm (2.6 in). This trend of escalating rainfall continues through the summer months, leading to Haikou's characteristic heavy downpours, particularly in June and July.
In April, Haikou experiences a shift in humidity, maintaining a level of 44%, which is consistent with the slightly drier conditions seen in March. This marks a notable contrast to the surrounding months, where humidity levels begin to rise significantly. Following April, residents can expect an increase in moisture as May and the summer months approach, with humidity climbing to 62% in May and soaring to 89% by July. This pattern highlights a summer trend in Haikou, where humidity peaks, creating a tropical atmosphere that is characteristic of the region. Thus, while April offers a brief respite with lower humidity, it's a precursor to the intense humidity of the summer months ahead.
In April, Haikou, China, experiences an escalated UV Index of 14, placing it in the extreme exposure category with a burn time of just 10 minutes. This trend of increasing UV levels continues an alarming trajectory seen since March, where the index reached 12. Notably, the UV Index has been on a steep ascent since January, when it started at 8, and it peaks in the subsequent months, culminating in July with an index of 16. As spring unfolds, residents and visitors alike should remain vigilant and take proper precautions against intense sunlight. For more details on the UV Index throughout the year, visit Haikou UV Index.
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April in Haikou, China, welcomes a wonderful blend of warmth and sunshine, recording 300 hours of sunlight—a delightful interlude as spring transitions into summer. This month stands out against its predecessor, March, which boasts 322 hours of sunlight, showcasing a slight dip as daytime length begins to stabilize. However, April's total shines brightly compared to the earlier months of the year, notably surpassing the low of 225 hours in January. As we move through spring, May promises to further elevate the sunshine experience, with an impressive 333 hours anticipated. The overall trend reveals a gradual increase in daylight hours, with summer on the horizon, ensuring that Haikou remains a sunny oasis for its inhabitants and visitors alike.
In Haikou, China, April marks a notable dip in the likelihood of sunny weather, with a 59% chance of sunshine compared to the previous months. This decrease follows a steady rise from 60% in January to a peak of 76% in March, hinting at a transitional phase as the region shifts from the early spring months to the hotter season. As the city approaches May, the chances of sunny days continue to slip to 50%, reinforcing a trend where the successful brightness of earlier months gives way to the increased humidity and cloud cover of summer. While April offers a reasonably positive outlook for sun-seekers, it serves as a gentle reminder that the warmth of the sun will soon be overshadowed by the tropical rains of the following months.
In April, Haikou experiences a delightful balance of 12 hours of daylight, maintaining the same duration as March. This consistent exposure to sunlight marks the beginning of a gradual increase leading into May, where daylight stretches to 13 hours. The trend is evident as the city transitions from the shorter winter days to the longer summer months, fostering a vibrant atmosphere perfect for outdoor activities. As the year progresses, Haikou benefits from extended daylight, peaking during the summer, before gently tapering off in the fall. This rhythmic cycle not only enhances the city's natural beauty but also invites residents and visitors alike to embrace the lush landscapes that come alive under the sun.
In April, Haikou experiences a gentle average wind speed of 3.4 m/s (8 mph), slightly up from March's breezier 4.2 m/s (9 mph). This trend indicates a transition to calmer conditions, as the city moves toward the warmer months. Although April's winds offer a pleasant respite, they foreshadow the gradually increasing gusts of May, which rise to 3.7 m/s (8 mph). Contrasting earlier months, where wind speeds peaked, April's conditions are more moderate, setting the stage for a comfortable spring filled with balmy breezes that invite outdoor activities and exploration.
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 is marked by significantly warmer temperatures compared to January, with a minimum of 4°C (40°F) and an average of 18°C (64°F), peaking at 31°C (88°F). In contrast, January experiences colder conditions, with minimum temperatures dropping to -2°C (29°F) and an average of only 10°C (50°F), reaching a maximum of 21°C (70°F). Additionally, April sees higher precipitation levels at 64 mm (2.5 in) over 8 rainy days, while January has less rainfall, totaling 39 mm (1.5 in) across just 4 days. The humidity is also lower in April at 44%, compared to January's 58%. For more detailed information, you can check Haikou weather in January.
April typically offers warmer and more variable weather than February, with temperatures ranging from a minimum of 4°C (40°F) to a maximum of 31°C (88°F), compared to February's milder range of 0°C (31°F) to 24°C (75°F). Additionally, April experiences more precipitation, averaging 64 mm (2.5 in) over around 8 days, while February sees significantly less rain at 20 mm (0.8 in) across just 3 days. Humidity levels also reflect this difference, with April being drier at 44% compared to February's higher 65%. For more details on February weather, you can check Haikou weather in February.
In comparing the weather of April and March, April tends to be warmer with average temperatures ranging from a minimum of 4°C (40°F) to a maximum of 31°C (88°F), while March has slightly cooler temperatures, with a minimum of 6°C (42°F) and a maximum of 29°C (84°F). Additionally, April experiences more precipitation, totaling 64 mm (2.5 in) over 8 days, compared to March's 25 mm (1.0 in) over just 5 days. Both months maintain a consistent humidity level of 44%, making the air feel similarly damp. For more detailed insights into the weather conditions in March, visit Haikou weather in March.
In comparing the weather between April and May, we can see some notable differences. April showcases a temperature range with a minimum of 4°C (40°F) and an average high of 31°C (88°F), while May experiences a slightly warmer minimum of 7°C (46°F) and an average temperature of 20°C (69°F), with a peak temperature reaching 32°C (91°F). Precipitation remains fairly consistent, with April recording 64 mm (2.5 in) over 8 days and May slightly higher at 65 mm (2.6 in) over the same number of days. One striking change is the increase in humidity from April's 44% to May's 62%, contributing to a noticeably more humid feel as the month progresses. For a detailed look at May weather trends, you can visit this link: Haikou weather in May.
April and June showcase distinct weather patterns. In April, temperatures range from a cool minimum of 4°C (40°F) to a pleasant average of 18°C (64°F), peaking at a maximum of 31°C (88°F). The month experiences moderate rainfall with 64 mm (2.5 in) spread over about 8 days and a humidity level of 44%. In contrast, June brings a significant increase in warmth, with minimum temperatures starting at 13°C (56°F) and averaging 21°C (71°F), while still reaching a maximum of 31°C (87°F). However, it also sees a substantial rise in precipitation, totaling 201 mm (7.9 in) over approximately 20 days and a much higher humidity of 82%. This shift underscores the transition from the relatively dry conditions of April to the wetter and more humid climate of June, which can be explored further through Haikou weather in June.
In April, the weather experiences a notable range, with average temperatures hovering around 18°C (64°F) and maximums peaking at 31°C (88°F). This month sees moderate rainfall, totaling 64 mm (2.5 in) over eight days, resulting in a relatively low humidity of 44%. In contrast, July presents a more humid environment with a minimum temperature of 14°C (58°F) and an average of 21°C (69°F), accompanied by a maximum reaching 29°C (84°F). The precipitation in July is significantly higher, amounting to 271 mm (10.7 in) spread over 26 days, leading to a much stickier atmosphere with 89% humidity. For more insights on July weather, check out Haikou weather in July.
April and August present contrasting weather conditions. In April, temperatures range from a cool 4°C (40°F) at night to a warm 31°C (88°F) during the day, with an average temperature of 18°C (64°F). This month sees moderate precipitation of 64 mm (2.5 in) spread over about 8 days and a relatively low humidity of 44%. In contrast, August experiences much warmer nights with a minimum temperature of 16°C (60°F), and daytime highs averaging around 29°C (85°F). The average temperature for August hovers at 21°C (70°F), but it comes with a significant increase in rainfall, totaling 268 mm (10.5 in) over approximately 26 days, along with much higher humidity levels at 90%. For more specific details about weather conditions in August, you can refer to Haikou weather in August.
April and September showcase contrasting weather patterns. In April, temperatures range from a minimum of 4°C (40°F) to a maximum of 31°C (88°F), with an average of 18°C (64°F). The month sees about 64 mm (2.5 in) of precipitation over roughly 8 days, and the humidity is relatively low at 44%. In contrast, September experiences milder temperatures, with a minimum of 11°C (52°F) and a maximum of 28°C (82°F), averaging 19°C (67°F). However, it is significantly wetter, receiving 161 mm (6.3 in) of rainfall across 22 days, and humidity rises sharply to 87%. For more details on September weather, check Haikou weather in September.
In April, the weather is characterized by a broader temperature range, with minimums around 4°C (40°F) and maximums reaching up to 31°C (88°F), resulting in an average temperature of 18°C (64°F). The month sees relatively low precipitation, averaging 64 mm (2.5 in) over just 8 days, and the humidity sits at a comfortable 44%. In contrast, October brings a cooler climate with minimum temperatures of 8°C (47°F) and maximums that peak at 26°C (78°F), yielding an average of 17°C (62°F). However, it also experiences increased rainfall, accumulating 89 mm (3.5 in) over 17 days, along with higher humidity levels at 81%. For a closer look at October weather specifics in Haikou, you can visit Haikou weather in October.
April and November offer contrasting weather experiences. In April, temperatures range from a minimum of 4°C (40°F) to a sweltering maximum of 31°C (88°F), with an average of 18°C (64°F). The month sees a moderate amount of precipitation at 64 mm (2.5 in) over about eight days, accompanied by relatively low humidity at 44%. In contrast, November presents milder temperatures, with a minimum of 5°C (40°F) and a cool maximum of 24°C (75°F), averaging 13°C (56°F). Precipitation is lighter at 32 mm (1.3 in) over six days, but humidity rises significantly to 82%. For more detailed information, you can check Haikou weather in November.
When comparing the weather in April and December, significant differences emerge. April boasts mild temperatures, with daily averages ranging from a minimum of 4°C (40°F) to a high of 31°C (88°F), and experiences higher precipitation at 64 mm (2.5 in) over about 8 days. The month enjoys a relatively low humidity of 44%, providing a comfortable atmosphere. In contrast, December sees cooler temperatures, with a minimum of -1°C (30°F) and an average of 10°C (50°F), maxing out at 21°C (69°F). It also features much less precipitation, totaling just 23 mm (0.9 in) across 4 days, but the higher humidity level of 73% can make the air feel colder. For more details on the conditions in December, you can visit Haikou weather in December.
As April unfolds in Haikou, temperatures begin to rise, offering a pleasant transition from the cooler months. This month showcases a delightful blend of warmth, peaking at a maximum of 31°C (88°F), while still maintaining a comfortable average. Unlike the drier months, April experiences a slight uptick in precipitation, with about eight days of light rain adding to the lush surroundings. The humidity at 44% contributes to the refreshing coastal atmosphere, making it an ideal time for outdoor activities. For more in-depth insights on how April compares to other months in Haikou, visit Haikou Climate.