Last updated: August 21, 2025
In August, Haikou, China experiences warm and humid weather, with maximum temperatures reaching up to 29°C (85°F) and a comfortable average of 21°C (70°F). Visitors should be prepared for frequent rain, as this month witnesses approximately 268 mm (10.5 in) of precipitation over 26 days, creating a lush and vibrant landscape. With humidity levels hovering around 90%, the air can feel heavy, making it essential to stay hydrated and seek shade during the sunniest parts of the day. Whether exploring the city's coastal beauty or indulging in local cuisine, August in Haikou offers a unique tropical ambiance that is both inviting and invigorating.
In August, Haikou, China, experiences a warm embrace with minimum temperatures around 16°C (60°F) and a comfortable average of 21°C (70°F). This month marks a peak in warmth, where the maximum temperature reaches 29°C (85°F), aligning with a gradual increase in heat throughout the summer months. With July's similar averages, August solidifies Haikou's reputation as a summer hotspot, but it also hints at the upcoming transition to milder temperatures in September. As the summer sun shines its brightest, the city becomes a vibrant canvas of activity, inviting visitors to enjoy its tropical charm before the cooler fall air sets in.
August marks a peak in precipitation for Haikou, China, with a significant 268 mm (10.5 in) of rainfall, closely trailing July's record of 271 mm (10.7 in). This month sees the same intense rain pattern, featuring 26 days of rainfall, highlighting the region's monsoon influence. As summer transitions, these high precipitation levels embody a continuing trend from the previous months, where the rainy season ramps up dramatically, particularly in the latter half of the year. Compared to the drier initial months of the year—where precipitation barely reached 65 mm in May—August's rain serves as a reminder of Haikou's lush, tropical climate, frequently soaking the city and contributing to its vibrant vegetation.
In August, Haikou, China, experiences its peak humidity at a staggering 90%, reflecting the region's tropical climate. This month marks a continuation of the intense humidity that begins to escalate significantly from June onward, where levels soar to 82%. Following this trend, July witnesses a further increase, reaching 89% before August solidifies its position as the most humid month of the year. The high humidity levels in late summer contribute to a sultry atmosphere, making it crucial for residents and visitors to stay hydrated and cool. As summer transitions to autumn, we see a gradual decline in humidity, with September still maintaining a high 87%, before easing to 81% in October. This pattern underscores Haikou's characteristic warm and moist summers, deeply influenced by its coastal location.
August in Haikou, China, continues the trend of intense sun exposure, with a UV Index of 14, categorized as extreme. This month sees the UV levels remain high, similar to the preceding months of June and July, where values peaked at 14 and 16 respectively. As summer reaches its apex, residents and visitors alike should exercise caution, as the burn time shortens to a mere 10 minutes. Following the pattern observed since March, it's clear that protecting your skin is crucial during this time. For those keen to learn more about the UV levels throughout the year, visit Haikou UV Index.
UV Risk Categories
In August, Haikou basks in 300 hours of sunlight, continuing the summer's vibrant trend. This month sees a slight dip from the peak of 333 hours in May, yet remains comfortably high, alongside the preceding month of July. The sunny disposition of Haikou persists as the summer months flow into one another, with luminous days cascading into the beginning of autumn. As the year progresses, the sunshine gradually lessens, but August still embodies the warmth and vitality of the season, making it a delightful time to enjoy the outdoors in this picturesque coastal city.
August in Haikou, China, presents a notably low likelihood of sunny weather, with only an 18% chance of enjoying blue skies. This marks a sharp decline from the sunnier months of March (76%) and February (67%). In fact, August sits among the least promising months for sun, trailing behind June and July, which also experience significantly diminished sunlight. The trend highlights a shift towards cloudier days and increased humidity, typical of the region's summer season. As the year progresses, the chances of sunshine slowly recover, with September seeing a slight rise to 35%, but August remains a month best prepared for overcast skies and rain.
In August, Haikou enjoys about 12 hours of daylight, marking a slight decrease from the peak of 13 hours experienced in the preceding summer months. As the year progresses, daylight gradually wanes, starting from a brisk 10 hours in January to a maximum of 13 hours from May to July. Following August, the days continue to shorten, with September also offering 12 hours of sunlight, ushering in the transition towards the cooler months. This rhythmic pattern of daylight not only enhances the vibrant summer vibe but also sets the stage for a more subdued autumn ambiance in Haikou.
In Haikou, China, August brings a notable dip in wind speed, averaging just 2.0 m/s (5 mph), making it one of the calmest months of the year. This trend of declining wind speeds continues from July's 2.2 m/s and sets the stage for the quieter breezes of September. Notably, the wind begins to pick up again in the fall, reaching 2.8 m/s in October, suggesting a seasonal shift. The summer months, particularly June through August, reflect a general decrease in wind activity, contrasting sharply with the more vigorous winds of early spring, which peak at 4.2 m/s in March. As the year progresses towards winter, Haikou experiences a slight recovery in wind speeds, stabilizing around 2.6 m/s to 2.3 m/s through the colder months, creating a cyclic pattern that makes each season distinct in its character.
Weather in Haikou varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Haikou, focusing on differences in temperature, rainfall, humidity, and UV levels.
In August, the weather is characterized by warm temperatures, with averages around 21°C (70°F) and maximums reaching as high as 29°C (85°F). The month also experiences significant rainfall, with about 268 mm (10.5 in) spread over 26 days, contributing to a high humidity level of 90%. In contrast, January offers a much cooler climate, with average temperatures dropping to 10°C (50°F) and minimums plunging to -2°C (29°F). Precipitation is minimal during this month, totaling just 39 mm (1.5 in) across only 4 days, and humidity levels are lower at 58%. For more specific information, you can check Haikou weather in January.
August and February present strikingly different weather conditions. In August, temperatures range from a minimum of 16°C (60°F) to a maximum of 29°C (85°F), with an average temperature of 21°C (70°F). This month sees significant precipitation of 268 mm (10.5 in) over 26 days and high humidity levels averaging 90%. In contrast, February offers a much cooler climate, with temperatures ranging from 0°C (31°F) to a maximum of 24°C (75°F), and an average of 11°C (53°F). Precipitation is minimal, amounting to just 20 mm (0.8 in) over 3 days, and humidity levels drop to around 65%. For more details, you can check Haikou weather in February.
In comparing the weather between August and March, significant differences emerge. August typically experiences warmer temperatures with a minimum of 16°C (60°F) and an average of 21°C (70°F), peaking at 29°C (85°F). This month also brings substantial rainfall, accumulating 268 mm (10.5 in) over 26 days, accompanied by high humidity levels of 90%. Conversely, March offers a cooler climate with a minimum temperature of 6°C (42°F) and an average of 16°C (61°F), also reaching a maximum of 29°C (84°F). However, it is notably drier, with just 25 mm (1.0 in) of rain spread over only 5 days, and a significantly lower humidity level of 44%. For more details about the weather in March, visit Haikou weather in March.
When comparing the weather in April and August, notable differences emerge. April features milder temperatures, with a minimum of 4°C (40°F) and an average of 18°C (64°F), peaking at 31°C (88°F). It also boasts lower precipitation levels, with only 64 mm (2.5 in) over just 8 days, resulting in a humidity of 44%. In contrast, August presents a much warmer climate, with minimum temperatures of 16°C (60°F), an average of 21°C (70°F), and maximums reaching 29°C (85°F). However, it is significantly wetter, receiving 268 mm (10.5 in) of rain spread across 26 days and a much higher humidity of 90%. For more detailed insights on April weather, you can check Haikou weather in April.
When comparing the weather in August and May, it's clear that both months present distinct conditions. In August, temperatures range from a minimum of 16°C (60°F) to a maximum of 29°C (85°F), with an average temperature of 21°C (70°F). This month is marked by high humidity levels at 90% and significant precipitation, totaling 268 mm (10.5 in) over 26 days. In contrast, May features a broader temperature range, typically between 7°C (46°F) and 32°C (91°F), with an average of 20°C (69°F). The month sees much less rainfall, accumulating just 65 mm (2.6 in) across only 8 days and a lower humidity of 62%. For more details, you can check out Haikou weather in May.
In comparing the weather between June and August, both months have similar average temperatures, hovering around 21°C (70°F). However, June experiences slightly cooler minimum temperatures of 13°C (56°F) compared to August's 16°C (60°F). In terms of maximum temperatures, June can peak at 31°C (87°F), while August reaches a maximum of 29°C (85°F). Precipitation levels are notably higher in August, with 268 mm (10.5 inches) over 26 days, in contrast to June's 201 mm (7.9 inches) spread across 20 days. Additionally, humidity is more pronounced in August, registering at a high 90% versus June’s 82%. For more information, you can view the detailed forecast at Haikou weather in June.
In comparing the weather of August to that of July, both months exhibit relatively similar temperature ranges, with August having a minimum of 16°C and a maximum of 29°C, compared to July's minimum of 14°C and the same maximum of 29°C. The average temperature remains nearly identical, at 21°C for both months. However, August sees slightly more precipitation at 268 mm over 26 days, compared to July's 271 mm over the same number of days. Humidity is also marginally higher in August at 90%, compared to 89% in July. For more detailed insights on July weather, check out Haikou weather in July.
August weather is typically warmer and more humid compared to September. In August, temperatures range from a minimum of 16°C (60°F) to a maximum of 29°C (85°F), with an average temperature of 21°C (70°F). The month is marked by significant rainfall, totaling 268 mm (10.5 in) over 26 days, and humidity levels hover around a high 90%. In contrast, September sees cooler temperatures, with a low of 11°C (52°F) and a high of 28°C (82°F), resulting in an average of 19°C (67°F). Precipitation decreases to 161 mm (6.3 in) over 22 days, accompanied by slightly lower humidity at 87%. For more specific details about September weather, you can check this link: Haikou weather in September.
August weather is characterized by higher temperatures and humidity, with minimums around 16°C (60°F) and averages reaching up to 21°C (70°F). The month sees maximum temperatures peaking at 29°C (85°F) and substantial rainfall, totaling 268 mm (10.5 in) across 26 days, which contributes to a humid atmosphere with 90% humidity. In contrast, October experiences cooler conditions, with minimum temperatures dropping to 8°C (47°F) and average highs around 17°C (62°F). The maximum temperature is milder at 26°C (78°F), and precipitation decreases significantly to 89 mm (3.5 in) over 17 days, resulting in a slightly lower humidity level of 81%. For more detailed insights, you can check Haikou weather in October.
August and November present a striking contrast in weather patterns. In August, temperatures range from a minimum of 16°C (60°F) to a maximum of 29°C (85°F), with a high average of 21°C (70°F). This month also sees significant rainfall, accumulating 268 mm (10.5 in) over 26 days, accompanied by high humidity levels of 90%. In contrast, November features much cooler temperatures, with a minimum of 5°C (40°F), an average of 13°C (56°F), and a maximum of 24°C (75°F). Precipitation is much lighter, totaling just 32 mm (1.3 in) across 6 days, and humidity drops slightly to 82%. For more details on November weather, check out Haikou weather in November.
August and December offer a striking contrast in weather. In August, temperatures are warm, with a minimum of 16°C (60°F) and an average of 21°C (70°F), peaking at a high of 29°C (85°F). However, this warmth comes with significant rainfall, as the month sees an average of 268 mm (10.5 in) of precipitation spread over 26 days, along with high humidity levels at 90%. In contrast, December presents a much cooler climate, where temperatures range from a minimum of -1°C (30°F) to an average of 10°C (50°F), with a maximum of 21°C (69°F). This month experiences only 23 mm (0.9 in) of precipitation over just 4 days and a lower humidity of 73%. For more detailed weather insights, check out Haikou weather in December.
August in Haikou is characterized by hot and humid weather, with temperatures reaching their peak and a notable increase in rainfall compared to other months. The city's average temperature hovers pleasantly around 21°C (70°F), but you can expect high humidity levels at around 90%, making the warmth feel more intense. The month is particularly wet, with frequent rains contributing to a total precipitation of 268 mm, cascading over nearly every day of the month. This substantial rain transforms Haikou into a lush landscape, contrasting with the drier spells of other seasons. For a more in-depth look at what to expect throughout the year, visit Haikou Climate.