Last updated: August 21, 2025
In March, Haikou experiences a delightful transition into spring, where maximum temperatures reach up to 26°C (80°F), offering a warm escape. The average temperature settles around 15°C (60°F), making it a perfect time for outdoor exploration. However, cooler nights can dip to a minimum of 7°C (46°F), so a light jacket may be ideal for evening strolls. This month sees about 123 mm (4.8 in) of precipitation scattered over 14 days, contributing to a refreshing, vibrant atmosphere. With humidity lingering around a comfortable 80%, March in Haikou is characterized by a balance of warmth and moisture, creating an inviting climate for both residents and visitors alike.
In March, Haikou, China begins to shake off the last remnants of winter, welcoming a shift toward warmer weather. Temperatures rise noticeably, with lows around 7°C (46°F) and averages reaching 15°C (60°F), providing a refreshing mild climate. The highs now peak at 26°C (80°F), hinting at the delightful warmth that April will bring. This month marks a transition into spring, where visitors can enjoy comfortable outdoor activities amid blooming scenery, making it an ideal time to experience the city's vibrant atmosphere.
In March, Haikou experiences a noticeable increase in precipitation, with 123 mm (4.8 in) of rainfall spread over 14 days. This marks a significant leap from the 70 mm (2.8 in) recorded in February, signaling the onset of a wetter season as spring progresses. The steady rise in rainfall continues an upward trend that started in January, culminating in even heavier downpours in the following months. With March's rainfall contributing to the city’s lush landscape, it sets the stage for the impending monsoon, which typically peaks in June and August. This month serves as a transitional period, where the city begins to embrace its vibrant greenery while residents prepare for the more intense rainfalls that lie ahead.
As March unfolds in Haikou, China, the humidity begins to rise, reaching 80%, a noticeable increase from the consistent 73% seen in the previous months of January and February. This shift marks the start of a trend as the humidity steadily climbs throughout the spring months. By April, the levels reach 81% and continue their upward trajectory into May, peaking at 85%. This pattern suggests a transition to a more tropical climate, where the warmth of spring is complemented by increasingly humid conditions, setting the stage for the summer ahead. As the year progresses, humidity fluctuates slightly, but the steady rise in early spring indicates a vibrant and humid climate typical of Haikou, enhancing its lush, green surroundings.
In March, Haikou experiences a significant leap in UV exposure, with the UV Index soaring to an extreme 11. This marked increase from February's very high 9 means that sun enthusiasts must take precautions, as the burn time shrinks to just 10 minutes. The transition to extreme levels is part of a broader trend as spring unfolds, leading into the even harsher conditions of April and May, which maintain an index of 12. As the months progress toward summer, residents and visitors alike should stay vigilant about sun safety to enjoy the beautiful weather while minimizing risk. For more insights on UV levels and protection, check out Haikou UV Index.
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March brings a delightful surge of sunshine to Haikou, China, with 272 hours of radiant daylight to enjoy. This marks a notable increase from 232 hours in February, reflecting the transition into spring. As the days grow longer, Haikou's sunshine continues to shine brighter, paving the way for even sunnier months ahead, such as April with 274 hours and May boasting an impressive 297 hours. This upward trend not only enhances outdoor activities but also invites residents and visitors alike to relish the vibrant atmosphere of the emerging season. With each passing month, Haikou promises to bask in the warmth of the sun, making it an enchanting destination for sunshine seekers.
In Haikou, China, the likelihood of enjoying sunny weather shifts dramatically throughout the year, with March experiencing a 39% chance of sunshine. This marks a notable dip compared to the preceding months, particularly January and February, which see higher probabilities of clear skies at 53% and 46%, respectively. As spring approaches, the chances of sun continue to decline, reaching a low of 30% in April before plummeting to just 15% by May. Interestingly, the months of September and October revive the sun’s presence, with chances bouncing back to 52% and 27%. This trend highlights the unpredictable nature of Haikou's early spring weather, where March offers a blend of mild warmth but less reliable sunshine.
In March, Haikou experiences a noticeable transition as daylight stretches to 12 hours, marking a clear progression from the shorter days of winter. This increase not only signals the arrival of spring but also lays the groundwork for even longer days ahead. With each passing month, daylight continues to grow, reaching its peak in May and June at a consistent 13 hours. Following this bright interlude, the daylight gradually starts to retreat as the year progresses into the cooler months. This natural ebb and flow of daylight culminates in a rhythm that highlights the dynamic climate of Haikou throughout the year.
As March rolls into Haikou, the winds begin to soften, with an average speed of 4.1 m/s (9 mph). This marks a slight decline from February’s breezy 4.6 m/s, suggesting that the brisk winter gales are gradually giving way to the calmer spring days. Although February is typically one of the more blustery months, by March, the winds tend to stabilize, paving the way for a serene atmosphere ideal for outdoor exploration. Interestingly, this month lies in the midst of fluctuating patterns throughout the year—from the peak winds of 6.5 m/s in October to the calmer 3.5 m/s in September. Whether it’s a gentle breeze or a gusty day, March offers a refreshing transition perfect for enjoying the vibrant landscape of Haikou.
Weather in Haikou varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Haikou, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between March and January, March presents a more dynamic climate, characterized by warmer average temperatures, ranging from a minimum of 7°C (46°F) to a maximum of 26°C (80°F), compared to January’s more subdued range of 3°C (38°F) to 24°C (76°F). Additionally, March experiences higher precipitation levels at 123 mm (4.8 in) over 14 days, while January sees less rainfall, totaling 45 mm (1.8 in) over just 6 days. The humidity also rises in March, reaching 80% compared to January’s 73%. For a more detailed look at January weather, you can check out Haikou weather in January.
In comparing the weather between February and March, March shows a significant increase in temperature, with a minimum of 7°C (46°F), an average of 15°C (60°F), and a maximum of 26°C (80°F). In contrast, February has lower temperatures, ranging from a minimum of 4°C (40°F) to a maximum of 24°C (76°F). Additionally, March experiences more precipitation, totaling 123 mm (4.8 in) over 14 days, whereas February receives only 70 mm (2.8 in) of rainfall across 9 days. Humidity levels are also higher in March at 80%, compared to February’s 73%. For more detailed insights on February weather, you can check this link: Haikou weather in February.
In March, the weather tends to be cooler with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 26°C (80°F) and an average of 15°C (60°F). This month also sees higher precipitation levels, with 123 mm (4.8 in) of rain over 14 days, resulting in a humidity level of 80%.
In contrast, April marks a transition to warmer conditions, featuring temperatures that range from a minimum of 10°C (50°F) to a maximum of 29°C (84°F), with an average of 19°C (66°F). Precipitation decreases to 88 mm (3.5 in) over 11 days and humidity remains slightly elevated at 81%. For a closer look at the weather specifics, you can visit Haikou weather in April.
March and May present contrasting weather conditions. In March, temperatures range from a minimum of 7°C (46°F) to a maximum of 26°C (80°F), with an average of 15°C (60°F). The month experiences significant rainfall, totaling 123 mm (4.8 in) over 14 days, accompanied by a humidity level of 80%.
In comparison, May offers warmer temperatures, with a minimum of 14°C (57°F) and a maximum reaching 32°C (90°F), averaging at 23°C (74°F). Precipitation in May slightly increases to 155 mm (6.1 in) across 15 days, and humidity also rises to 85%. This shift suggests that May not only feels warmer but also tends to be wetter than March. For a detailed look at the weather characteristics, check Haikou weather in May.
March and June present distinct contrasts in weather patterns. In March, temperatures range from a minimum of 7°C (46°F) to a maximum of 26°C (80°F), with an average of 15°C (60°F). The month sees significant precipitation, totaling 123 mm (4.8 in) over about 14 days, accompanied by a humidity level of 80%. By June, the climate shifts dramatically, with temperatures starting at a minimum of 20°C (69°F), peaking at 33°C (92°F) and averaging around 27°C (80°F). June experiences even heavier rainfall, with 269 mm (10.6 in) falling over 18 days, while humidity remains high at 81%. This transition signifies a move from cool, wet conditions to hot, humid weather. For more details, you can check out Haikou weather in June.
In March, the weather tends to be cooler, with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 26°C (80°F), while the average temperature hovers around 15°C (60°F). This month also sees significant rainfall, with 123 mm (4.8 in) over about 14 days, and the humidity stands at 80%. In contrast, July experiences much warmer conditions, with temperatures soaring from a minimum of 25°C (78°F) to a maximum of 35°C (95°F), and an average of 29°C (84°F). The precipitation is lower at 83 mm (3.3 in) across 13 days, and humidity is slightly elevated at 84%. For a closer look at the weather specifics during July, visit Haikou weather in July.
March and August present contrasting weather conditions. In March, temperatures range from a mild minimum of 7°C (46°F) to a comfortable maximum of 26°C (80°F), with an average of 15°C (60°F) and a relatively high humidity of 80%. However, this month sees quite a bit of rain, totaling 123 mm (4.8 in) over approximately 14 wet days. In contrast, August is much warmer, with minimum temperatures at 25°C (76°F) and maximums reaching up to 35°C (95°F), resulting in an average temperature of 29°C (84°F). This summer month is also significantly wetter, with precipitation measuring 260 mm (10.2 in) spread over about 20 days, while humidity remains high at 82%. For a detailed overview, check out Haikou weather in August.
March and September exhibit distinct weather characteristics that reflect the transition between seasons. In March, temperatures range from a cool minimum of 7°C (46°F) to a warm maximum of 26°C (80°F), with an average of 15°C (60°F). The month sees considerable precipitation, totaling 123 mm (4.8 in) over 14 days, contributing to a high humidity level of 80%. In contrast, September experiences a warmer climate, with temperatures fluctuating between a minimum of 20°C (68°F) and a peak of 35°C (96°F), averaging at 27°C (81°F). The precipitation in September is slightly lower at 105 mm (4.1 in), spread across 15 days, and the humidity decreases to 70%. For more detailed insights on the weather in September, you can visit Haikou weather in September.
March and October exhibit distinct weather patterns. In March, temperatures range from a minimum of 7°C (46°F) to a maximum of 26°C (80°F), with an average of 15°C (60°F). The month is characterized by higher precipitation, averaging 123 mm (4.8 in) over 14 rainy days and maintaining a humidity level of 80%. In contrast, October experiences milder temperatures, with a minimum of 16°C (60°F) and a maximum of 33°C (92°F), averaging at 23°C (74°F). Precipitation is lower, at 71 mm (2.8 in) over 12 days, and humidity is slightly reduced at 73%. For more details on October weather, you can visit Haikou weather in October.
March and November display distinct weather characteristics, with March being cooler and wetter compared to November. In March, temperatures range from a minimum of 7°C (46°F) to a maximum of 26°C (80°F), averaging around 15°C (60°F), while November sees milder temperatures, with a minimum of 11°C (53°F) and a maximum of 28°C (83°F), averaging 19°C (67°F). Precipitation is more significant in March, totaling 123 mm (4.8 inches) over 14 days, contrasted with November's 65 mm (2.6 inches) spread across 10 days. Despite the increase in rainfall in March, humidity levels are slightly higher at 80%, compared to November's 77%. For more detailed information on November's weather, visit Haikou weather in November.
March and December present distinct weather patterns, showcasing the transition between seasons. In March, temperatures range from a minimum of 7°C (46°F) to a maximum of 26°C (80°F), with an average of 15°C (60°F). The month is characterized by significant precipitation, totaling 123 mm (4.8 inches) over about 14 days, resulting in higher humidity levels at 80%. In contrast, December features slightly cooler temperatures, with minimums at 7°C (45°F) and maximums reaching 25°C (77°F), averaging 14°C (58°F). Precipitation in December is considerably lower at 49 mm (1.9 inches) over 9 days, and humidity is slightly less at 79%. For more specific information on December conditions, you can visit Haikou weather in December.
March in Haikou marks a distinct transition from the cooler winter months to a refreshing spring climate. With relatively mild temperatures and an increase in humidity, this month welcomes a taste of warmth that distinguishes it from the chillier preceding months. However, the frequent rainfall—accompanied by about half the days in the month—adds a unique touch to the weather, reminding residents and travelers to prepare for both sun and showers. For an in-depth analysis of Haikou's climate patterns throughout the year, check out Haikou Climate.