Last updated: August 21, 2025
Discover the captivating weather of Hainan, China in October, where the landscape transforms under a backdrop of mild temperatures and increasing humidity. With a comfortable maximum of 27°C (80°F) and a cooler average of 6°C (42°F), visitors can enjoy outdoor adventures amid the island’s natural beauty. Despite the occasional minimum dropping to -10°C (15°F), the month brings only 22 mm (0.9 in) of precipitation over four days, allowing plenty of sunshine to shine through. The high humidity at 80% adds to the tropical charm, making Hainan an ideal destination for those seeking a blend of warmth and vibrant scenery.
In October, Hainan, China, experiences a distinctive shift in temperatures as the season transitions from summer to winter. The minimums dip to a chilly -10°C (15°F), contrasting with the warmer months, while the average temperature settles around 6°C (42°F). This cool snap is accompanied by a pleasant maximum that reaches up to 27°C (80°F), offering a comfortable balance for outdoor activities. Compared to the previous month, October signifies a decline in both the lower and middle range temperatures, moving from the remnants of summer warmth into the early whispers of winter. This month beautifully encapsulates the essence of seasonal change, appealing to those eager to enjoy the crisp air and vibrant fall scenery.
In October, Hainan experiences a notable shift in precipitation, receiving an average of 22 mm (0.9 in) of rain over approximately 4 days. This marks a significant decrease from the summer months, where heavy rains often dominate, peaking in July and August with impressive totals of 175 mm (6.9 in) and 183 mm (7.2 in), respectively. As the island transitions into fall, the reduction in rainfall hints at the end of the wet season, setting the stage for drier months ahead. With a steady rate of precipitation that mirrors November, October serves as a bridge, leading Hainan into its more temperate phase, characterized by milder weather and increasingly sunny days.
October in Hainan, China, marks a transitional phase in humidity levels as the region navigates from the sweltering summer months to the cooler autumn season. With an average humidity of 80%, October remains relatively high, although it shows a slight decrease from the peak months of July (84%) and August (87%). This shift signals the gradual retreat of the summer’s intense moisture, yet the air still carries a significant weight, making for a unique blend of warmth and humidity. As the month progresses, it paves the way for drier conditions in November and December, which both drop to a refreshing 61% and 60% respectively, highlighting a marked change in Hainan's climate as it approaches winter.
In October, Hainan, China experiences a moderate UV Index of 4, signaling a transition from the intense summer months. As temperatures begin to cool, the burn time increases to 30 minutes, offering a temporary reprieve from the relentless sun. This pattern reflects the broader trends in the year, where UV exposure ramps up dramatically from the low levels in winter to very high indices during the peak summer months of June and July. As we move into November, the UV index will plummet back to a low of 2, further highlighting the significant seasonal fluctuations in sun exposure to be mindful of. For those planning outdoor activities, staying informed is crucial; you can check detailed information through this link: Hainan UV Index.
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October in Hainan, China, greets visitors with a warm embrace of sunshine that lasts for approximately 255 hours, marking a transition into the cooler months. While this month sees less sunlight than the vibrant summer peak in July, which boasts 341 hours, it still holds its own as part of a prolonged stretch of sunny days that begins in January with 182 hours and steadily climbs until May, reaching a high of 330 hours. As the year progresses, the island's sunlight gradually wanes, but October's ample brightness allows for ample opportunities to enjoy Hainan's stunning beaches and lush landscapes. Though the sun dips to dimmer days in November with 215 hours, October remains a perfect time for visitors to soak up the lingering warmth before winter settles in.
October in Hainan, China, showcases a significant upswing in sunny weather, with a 60% chance of sun. This marks a delightful transition from the wetter months of summer, where the likelihood of sunshine dips as low as 27% in July and gradually rises to 41% by September. Interestingly, October's sunny prospects closely follow January's 62%, indicating a trend towards brighter days as the year moves into its cooler phases. As winter approaches, sunshine once again takes the spotlight, culminating in a robust 68% chance of clear skies in December. October, therefore, stands out as a prime time for outdoor activities, blending pleasant warmth with the invitation of clear blue skies.
As autumn settles in Hainan, China, October brings a noticeable shift in daylight duration, offering about 10 hours of sunlight each day. After basking in the long, bright days of summer with up to 15 hours in May through July, the gradual decline from September's 12 hours reveals a movement towards the shorter days of winter. October's daylight offers a gentle transition, allowing for pleasant outdoor activities while hinting at the cozy evenings ahead. This cyclical rhythm not only highlights the beauty of each season but also invites residents and visitors alike to embrace the changing landscape as nature prepares for its winter slumber.
As October rolls in, Hainan experiences a refreshing shift in wind patterns, with average speeds reaching 3.3 m/s (7 mph). This increase mirrors a slight resurgence from the lower summer months, where winds dipped to 2.7 m/s in both July and September. Interestingly, October's winds are similar to February's, hinting at a seasonal rhythm that enhances the island's already vibrant atmosphere. Following this month, the winds remain relatively consistent through November, tapering off slightly in December. Such gentle breezes make October an ideal time for outdoor activities, inviting both locals and visitors to soak in the tropical charm of Hainan.
Weather in Hainan varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Hainan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In October, the weather showcases a wider temperature range, with lows dipping to -10°C (15°F) and highs reaching a pleasant 27°C (80°F), averaging around 6°C (42°F). The month experiences approximately 22 mm of precipitation over four days, coupled with a humidity level of 80%. Conversely, January is considerably harsher, with temperatures plummeting to a bitter minimum of -38°C (-36°F) and averaging -20°C (-4°F). The maximum temperature barely rises above freezing at -3°C (27°F). Precipitation drops significantly to just 5 mm over one day, and humidity levels remain slightly lower at 75%. For insights about weather during January in Hainan, visit Hainan weather in January.
October and February present stark contrasts in weather conditions. In October, temperatures can range from a chilly -10°C (15°F) at night to a moderate max of 27°C (80°F), with an average of 6°C (42°F). This month experiences relatively higher humidity at 80% and light precipitation of about 22 mm (0.9 in) over approximately four days. In contrast, February is much colder, with minimum temperatures plummeting to -33°C (-27°F) and an average temperature of -15°C (5°F), peaking at only 8°C (47°F). February is notably drier as well, with just 6 mm (0.2 in) of precipitation over one day and lower humidity levels at 70%. For those interested in understanding other regional trends, you can check out Hainan weather in February.
In comparing the weather of October and March, we see stark contrasts in temperature and conditions. October features a much warmer average of 6°C (42°F), with maximum temperatures reaching up to 27°C (80°F), while March is significantly colder, with an average temperature of -3°C (26°F) and lows plummeting to -31°C (-23°F). Precipitation is slightly higher in October at 22 mm (0.9 in) over four days, compared to March's 13 mm (0.5 in) over three days. Additionally, October experiences higher humidity levels at 80%, compared to March's 63%. For more details about the weather in March, you can check Hainan weather in March.
October and April exhibit distinct weather patterns that highlight the transition between seasons. In October, temperatures range from a chilly minimum of -10°C (15°F) to a pleasant maximum of 27°C (80°F), with an average of 6°C (42°F). The month sees relatively low precipitation of 22 mm (0.9 in) over four days, coupled with high humidity at 80%. In contrast, April offers slightly warmer temperatures, with a minimum of -9°C (16°F), an average of 7°C (44°F), and a maximum of 25°C (78°F). However, it experiences more rainfall, totaling 32 mm (1.3 in) over the same number of days, and lower humidity at 59%. For more details on weather conditions during this time, you can explore Hainan weather in April.
October and May present quite distinct weather patterns. In October, temperatures can vary significantly, with a minimum of -10°C (15°F) and a maximum of 27°C (80°F), averaging around 6°C (42°F). The month sees relatively low precipitation of 22 mm (0.9 in) over about 4 days, accompanied by a high humidity level of 80%. In contrast, May displays milder conditions, with minimum temperatures around 0°C (33°F) and maximums reaching 31°C (89°F), averaging 14°C (58°F). However, it tends to be wetter, with a total precipitation of 72 mm (2.8 in) over 11 days and a lower humidity of 61%. For a closer look at the weather during this month, you can refer to Hainan weather in May.
When comparing the weather in October and June, notable differences emerge in both temperature and precipitation. October experiences a wider temperature range, with minimums dipping as low as -10°C (15°F) and maximums reaching up to 27°C (80°F), averaging around 6°C (42°F). In contrast, June boasts significantly warmer temperatures, with minimums at 6°C (43°F), averaging 19°C (67°F), and soaring highs of 36°C (97°F).
Precipitation also varies greatly between the two months. October sees relatively light rainfall, totaling just 22 mm (0.9 in) over roughly four days, while June is much wetter, with 126 mm (4.9 in) spread across about 15 days. Despite the higher humidity levels in June at 79% compared to October's 80%, the increased warmth and frequent rain make June feel considerably more humid overall. For more detailed insights, check out Hainan weather in June.
The weather in October presents a stark contrast to that of July. October experiences cooler temperatures, with a minimum of -10°C (15°F) and an average of 6°C (42°F), while July sees milder conditions, starting at a minimum of 13°C (57°F) and averaging 23°C (74°F). July is also characterized by significant precipitation, totaling 175 mm (6.9 in) over 17 days, compared to October's much drier climate with only 22 mm (0.9 in) of rainfall over 4 days. Both months exhibit high humidity, with July slightly higher at 84% compared to October's 80%. For more details, you can check Hainan weather in July.
In comparing the weather of October and August, October sees a wider temperature range, with minimums dropping to -10°C (15°F) and maximums reaching 27°C (80°F), while in August, temperatures are milder with minimums at 6°C (42°F) and maximums at 29°C (85°F). August is also considerably wetter, experiencing 183 mm (7.2 in) of precipitation over 17 days, compared to October's lighter rainfall of just 22 mm (0.9 in) over 4 days. Humidity levels are relatively high in both months, with October at 80% and August slightly higher at 87%. For more detailed weather insights, you can refer to Hainan weather in August.
In comparing the weather between September and October, October tends to be cooler with an average temperature of 6°C (42°F), while September enjoys a milder average of 15°C (59°F). The maximum temperature in October reaches 27°C (80°F), closely mirroring September’s peak of 28°C (83°F). However, October is significantly drier, accumulating just 22 mm (0.9 in) of precipitation over 4 days, compared to September’s 103 mm (4.1 in) spread across 9 days. Additionally, humidity levels are slightly lower in October at 80%, compared to 85% in September. For more detailed insights, visit Hainan weather in September.
October and November present contrasting weather patterns. In October, temperatures can fluctuate significantly, with a minimum of -10°C (15°F) and a maximum of 27°C (80°F), leading to an average temperature of 6°C (42°F). The month experiences moderate precipitation of 22 mm (0.9 in) over approximately four days, accompanied by relatively high humidity at 80%. Conversely, November sees a more pronounced chill, with temperatures dropping further into the range of -25°C (-14°F) at night, averaging -6°C (21°F) overall, and peaking at 14°C (57°F). Although November shares the same total precipitation of 22 mm (0.9 in) over four days, the humidity decreases to 61%, indicating a drier atmosphere compared to October. For more details on weather conditions in this month, visit Hainan weather in November.
October and December present stark contrasts in weather. October typically sees milder temperatures, with a minimum of -10°C (15°F) and an average of 6°C (42°F), peaking at a warm 27°C (80°F). The month experiences around 22 mm (0.9 in) of precipitation over four days, accompanied by high humidity levels at 80%. In contrast, December brings significantly colder conditions, with temperatures plunging to a minimum of -32°C (-26°F) and an average of -18°C (0°F), soaring to a maximum of only 6°C (43°F). Precipitation decreases to just 9 mm (0.3 in) over two days, and the humidity drops to a more comfortable 60%. For those interested in more about December weather, check out Hainan weather in December.
October in Hainan marks a significant shift in weather compared to the preceding months, offering a delightful blend of warmth and refreshing humidity. As temperatures begin to cool slightly, with maximums around 27°C, it creates an inviting atmosphere perfect for outdoor activities. This month also experiences a moderate amount of rain, with only a few days of precipitation, keeping the landscape vibrant without overwhelming downpours. The humidity remains high at 80%, fostering that quintessential tropical feel. For those seeking an escape from harsher climates, October presents a perfect time to embrace Hainan's balmy charm. For more detailed insights, visit Hainan Climate.