Last updated: August 21, 2025
In June, Haikou, China experiences a warm and humid climate that shapes the city's vibrant atmosphere. With maximum temperatures soaring to 36°C (98°F) and an average of 26°C (79°F), the month offers a mix of heat and comfort. Nighttime temperatures dip to a pleasant 17°C (63°F), providing respite from the daytime warmth. However, this tropical paradise is also accompanied by heavy rainfall, as 407 mm (16.0 in) of precipitation falls over 20 days, resulting in lush landscapes. This high humidity level of 87% contributes to the area's distinctive tropical feeling, making June a characteristically lively month in Haikou.
In June, Haikou, China, experiences a warm shift as temperatures rise significantly, marking the transition into summer. The minimum temperature hovers around 17°C (63°F), while the average climbs to a comfortable 26°C (79°F), peaking at a scorching 36°C (98°F). This month serves as a precursor to even hotter July and August, highlighting a clear upward trend in heat throughout the summer season. As the city basks in these balmy days, it's the perfect time for outdoor adventures, beach outings, and enjoying the vibrant local culture, all under the sun's warm embrace.
June brings a remarkable surge in precipitation to Haikou, China, with an impressive 407 mm (16.0 in) of rain, the highest monthly total of the year. This deluge occurs over 20 days, signaling a peak in the wet season as the summer heat intensifies. The dramatic rise from 244 mm (9.6 in) in May showcases the region's transition into a tropical climate, where downpours become more frequent and substantial. Following June, rainfall diminishes in July to 300 mm (11.8 in), indicating a slight moderation, yet still reflecting the region's overall wet pattern. This striking contrast highlights June as a pivotal month in the annual precipitation cycle, underscoring its significance in maintaining Haikou's lush landscapes and vibrant ecosystems.
In June, Haikou experiences a peak in humidity, maintaining a notable 87%. This consistent moisture level follows the gradual increase seen in the previous months, with April and May marking significant climbs to this tipping point. As the summer season approaches, the city transitions into even more humid conditions, evidenced by July's rise to 91%. This trend of escalating humidity not only characterizes the sultry summer months but also highlights Haikou’s tropical climate, where residents can expect to feel the weight of the humidity as they navigate through the warm, vibrant days of June.
In June, Haikou experiences a soaring UV Index of 12, categorizing the exposure as extreme and allowing for a burn time of just 10 minutes. This marks the peak of the yearly UV intensity, which steadily rises from a high of 6 in January to a striking 11 in May, before hitting its summer climax. Following June, July and August maintain this extreme level, emphasizing the importance of sun protection during these months. As we transition into the fall, the UV Index begins to taper off, dropping to 10 in September and then giving way to more moderate levels by November and December. The increasing trend in UV intensity underscores the need for vigilance against sun exposure, particularly as temperatures rise in the summer months. For detailed information on UV levels throughout the year, visit Haikou UV Index.
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June in Haikou, China, serves as a delightful bridge between the vibrant spring and the sun-drenched summer. With 241 hours of sunshine, June offers a healthy dose of bright days, slightly tapering off from the glorious 283 hours of May. This month continues the upward trend of sunshine hours seen in the preceding months, characterized by a gradual increase from 159 hours in January to a remarkable peak of 315 hours in August. The warm, sunny days of June hint at the peak summer sunshine to come, as Haikou transitions into a season marked by long, radiant days that invite both locals and visitors to embrace outdoor adventures and coastal relaxation.
In Haikou, China, June marks a significant shift towards less sunny weather, with only a 16% chance of sunshine. This decline continues the trend established in the preceding months of spring, where the probability of sunny days hovers around or dips below 25%. As the year progresses, residents and visitors can expect a notable increase in cloud cover, as sunny days are more common in the earlier winter and fall months, peaking at 58% in January and rising again to 61% in September. Thus, while June may not offer the most reliable sunny skies, the subsequent months will soon provide a welcome return to brighter, more cheerful days.
In June, Haikou basks in approximately 13 hours of daylight, joining the summer months of July and August in providing the longest light-filled days of the year. This trend of increasing daylight begins in March as spring sets in, gradually extending from 11 hours at the start of the year to a peak of 13 hours by mid-year. Following June, daylight begins to taper off, reminiscent of the gradual decline starting in September through to November. This cyclical pattern not only highlights the vibrant summer months but also sets the stage for a smooth transition into the cooler, shorter days of autumn and winter, making the rhythm of daylight in Haikou a delightful dance of seasonal changes.
In June, Haikou experiences a gentle lull in its winds, with an average speed of 1.6 m/s (4 mph), marking a noticeable dip from the preceding months. This gentle breeze is the softest of the year, signaling a transition into the hotter summer season. Following a consistent pattern, wind speeds are at their lowest in May and June, while a resurgence occurs in July with speeds rising to 2.2 m/s (5 mph). This trend suggests a seasonal ebb and flow, where the lively gusts of mid-summer contrast sharply with the more tranquil winds of early summer, creating a dynamic atmosphere that beautifully complements Haikou's coastal charm.
Weather in Haikou varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Haikou, focusing on differences in temperature, rainfall, humidity, and UV levels.
June and January present starkly contrasting weather conditions. In June, temperatures soar with a minimum of 17°C (63°F) and a blistering maximum of 36°C (98°F), while an average temperature of 26°C (79°F) is accompanied by high humidity at 87%. The month is also characterized by significant rainfall, receiving approximately 407 mm (16.0 in) over about 20 days. In sharp contrast, January experiences a much cooler climate, featuring a minimum temperature of -5°C (24°F) and a maximum of 24°C (75°F), with an average of 8°C (46°F). The month sees considerably less precipitation, totaling just 70 mm (2.7 in) across 9 days, and a lower humidity of 65%. For a more detailed look at the weather trends, visit Haikou weather in January.
June and February present strikingly contrasting weather patterns. June boasts a warm range of temperatures, with minimums at 17°C (63°F) and maximums soaring to 36°C (98°F), accompanied by high humidity levels of 87% and significant rainfall of 407 mm (16.0 in) over 20 days. In contrast, February experiences much cooler conditions, with temperatures dipping as low as -3°C (26°F) at night, but still reaching a pleasant maximum of 26°C (79°F) during the day. Rainfall is significantly lower in February, totaling 83 mm (3.3 in) over about 12 days, and the humidity is a more moderate 71%. For more details on February weather, you can check out Haikou weather in February.
June and March present a stark contrast in weather conditions. In June, temperatures soar with a minimum of 17°C (63°F) and an average of 26°C (79°F), peaking at a sweltering 36°C (98°F). This month experiences significant rainfall, totaling 407 mm (16.0 in) over 20 days, accompanied by high humidity levels of 87%. Conversely, March offers a milder climate, with temperatures ranging from a cool 3°C (38°F) to a comfortable average of 14°C (58°F) and a high of 30°C (86°F). Rainfall in March is also lighter at 205 mm (8.1 in) spread over 16 days, and humidity is slightly lower at 81%. For a detailed look at March weather, you can visit Haikou weather in March.
When comparing the weather in April and June, notable differences emerge in temperature and precipitation. June tends to be much warmer, with average temperatures reaching 26°C (79°F), compared to April's average of 18°C (65°F). Additionally, June experiences higher maximum temperatures of up to 36°C (98°F), while April peaks at 33°C (91°F). In terms of precipitation, June is significantly wetter, with 407 mm (16.0 in) occurring over 20 days, whereas April sees only 179 mm (7.0 in) across 14 days. Humidity levels remain similar, with June at 87% and April at 86%. For more details on April weather, check out Haikou weather in April.
In comparing the weather between May and June, it's evident that June experiences warmer average temperatures and higher humidity, with minimums rising from 11°C (52°F) in May to 17°C (63°F) in June. Both months peak at a maximum of 36°C (97°F in May and 98°F in June), but June sees a notable increase in precipitation, totaling 407 mm (16.0 in) over 20 days, compared to May's 244 mm (9.6 in) over 16 days. Humidity levels remain constant at 87% for both months, creating a muggy atmosphere. For a more detailed look at May's climate, visit Haikou weather in May.
In June, the weather is characterized by slightly cooler temperatures, with a minimum of 17°C (63°F) and an average of 26°C (79°F), while reaching a maximum of 36°C (98°F). This month also experiences significant rainfall, with 407 mm (16.0 in) of precipitation over 20 days and high humidity at 87%. In contrast, July sees warmer temperatures overall, with minimums around 21°C (70°F) and an average of 29°C (85°F), peaking at 39°C (103°F). Rainfall decreases to 300 mm (11.8 in) over 16 days, but humidity rises slightly to 91%. For those looking to understand the weather specifics in July, you can find more information here: Haikou weather in July.
June and August present distinct weather characteristics. In June, temperatures range from a minimum of 17°C (63°F) to a maximum of 36°C (98°F), with an average of 26°C (79°F). The month is quite rainy, receiving 407 mm (16.0 in) of precipitation over 20 days, contributing to a high humidity level of 87%. In contrast, August is warmer, with temperatures starting at a minimum of 22°C (71°F) and soaring to a maximum of 41°C (105°F), averaging around 30°C (86°F). Rainfall is significantly lower in August, with only 119 mm (4.7 in) across 13 days, while humidity remains consistent at 87%. For more details, you can check Haikou weather in August.
June and September weather exhibits notable differences. In June, temperatures range from a minimum of 17°C (63°F) to a maximum of 36°C (98°F), with an average of 26°C (79°F). This month also sees a significant amount of rainfall, with 407 mm (16.0 in) of precipitation spread over 20 days and high humidity levels at 87%. In contrast, September features slightly warmer temperatures, with a minimum of 17°C (63°F), an average of 27°C (80°F), and a maximum reaching 38°C (101°F). Rainfall in September is considerably lower, with only 71 mm (2.8 in) of precipitation occurring over just 9 days and reduced humidity at 72%. For more details, check out Haikou weather in September.
June and October showcase notable differences in weather patterns. In June, temperatures can soar as high as 36°C (98°F), with an average around 26°C (79°F), while the minimum remains a comfortable 17°C (63°F). However, this month is characterized by heavy rainfall, accumulating around 407 mm (16.0 in) over approximately 20 days, with high humidity levels at 87%. In contrast, October experiences milder temperatures, ranging from a minimum of 11°C (51°F) to a maximum of 36°C (97°F), but with a significantly lower average of 21°C (70°F). The precipitation drops dramatically to only 40 mm (1.6 in) across about 6 days, and the humidity decreases to 74%. For more details on October's climate, check Haikou weather in October.
June and November showcase a stark contrast in weather conditions. June is characterized by warmer temperatures, with average highs reaching up to 36°C (98°F) and a notable amount of rainfall, totaling 407 mm (16.0 in) over about 20 days, leading to high humidity levels of 87%. In contrast, November presents a much cooler climate, featuring average temperatures that max out at 29°C (85°F) and a significant drop in precipitation to just 70 mm (2.8 in) over 10 days. The humidity also decreases slightly to 80%, making November a more comfortable and drier month overall. For more insight into November's conditions, you can visit Haikou weather in November.
June and December showcase strikingly different weather patterns. In June, temperatures range from a mild 17°C (63°F) at night to a sizzling high of 36°C (98°F) during the day, with an average temperature of 26°C (79°F). This month also brings significant rainfall, averaging 407 mm (16.0 in) over approximately 20 rainy days, coupled with high humidity at 87%.
In contrast, December presents a much cooler climate, with temperatures dropping to a minimum of -2°C (28°F) and rising to a comfortable maximum of 23°C (74°F), averaging around 9°C (49°F). Precipitation is minimal, with only 57 mm (2.2 in) over about 8 days, and humidity levels are somewhat lower at 78%. For more details on December's weather, you can visit Haikou weather in December.
As June unfolds in Haikou, it brings a striking transition from the milder spring months, with higher temperatures and increased humidity creating a muggy atmosphere. The frequent rain showers contribute to the overall lushness of the landscape, making every day feel vibrant and alive. While other months may offer less precipitation, June stands out with its frequent downpours, reflecting the onset of the wet season. For those planning to visit, it's essential to be prepared for a day spent alternating between sunshine's warm embrace and refreshing rainfall. For more details on what to expect throughout the year, check out Haikou Climate.