Last updated: October 30, 2025
September in Pyeongchang, South Korea, offers a delightful transition into autumn, characterized by mild temperatures and varying weather patterns. The maximum temperature can reach a pleasant 28°C (82°F), while the average temperature hovers around 18°C (65°F), providing comfortable conditions for outdoor activities. However, cooler evenings can bring the minimum down to 6°C (43°F). Visitors should be prepared for a moderate amount of precipitation, with approximately 155 mm (6.1 in) of rain spread over about 9 days, complemented by a humidity level of 77% that enhances the scenic beauty of the region. This blend of climate elements makes September an ideal time to explore Pyeongchang's natural charm and vibrant landscape.
As September unfolds in Pyeongchang, South Korea, the transition from the sweltering summer to a crisp fall becomes evident. With minimum temperatures hovering around 6°C (43°F) and average highs reaching a comfortable 28°C (82°F), the month offers a delightful respite from the heat of August. This adjustment marks a notable shift, as the average drops from 24°C (75°F) in August to 18°C (65°F), inviting outdoor enthusiasts to explore the stunning autumn foliage. As the days grow shorter and cooler, the mild temperatures create the perfect backdrop for experiencing the beauty of this alpine region before the winter chill sets in.
In September, Pyeongchang experiences a significant drop in precipitation compared to the peak summer months, recording 155 mm (6.1 in) of rain over 9 days. This marks a noticeable decrease from August's hefty 235 mm (9.2 in), reflecting a transition into the drier autumn season. Despite fewer rainy days, September's rainfall remains substantial, contributing to an overall wet summer that begins to taper off. This pattern highlights the region's shift from its monsoon-like July and August conditions, offering a fresh perspective on the changing weather as the year draws closer to its end.
September in Pyeongchang, South Korea, sees a notable shift in humidity levels, averaging around 77%. This marks a slight decrease from the summer peak, where the humidity hovered at a high 91% in July and August. As the region transitions into autumn, the air becomes crisper, yet still maintains a level of moisture that reflects the lingering warmth of the season. The humidity trend from earlier months, with a gradual rise from 64% in March to 82% in June, showcases the seasonal variation typical of this mountainous locale. September's more temperate atmosphere is a welcome relief, offering residents and visitors a chance to enjoy the stunning fall foliage amidst a comfortable humidity level.
As September arrives in Pyeongchang, South Korea, the UV Index remains notably high at 10, categorizing it as very high. This marks a slight decrease from the blistering indexes of July and August, which saw extreme levels of 11 and 12 respectively. Despite the minor decline, residents and visitors should still exercise caution, as the burn time is a brisk 15 minutes. The transition into autumn signifies a gentle shift away from the intense summer sun, but the strong UV rays serve as a reminder to remain vigilant about sun safety. For more detailed information on UV levels throughout the year, visit Pyeongchang UV Index.
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In Pyeongchang, South Korea, September shines with approximately 250 hours of sunshine, comfortably nestled between the peak summer months and the crisp autumn season. This amount reflects a dip from the vibrant summer highs of 312 hours in June and 304 hours in May, yet remains brighter than the colder months that follow. Interestingly, September's sunshine hours hint at a steady transition; while the days begin to shorten, the lingering warmth invites outdoor adventures, making it a delightful time for visitors. Overall, the trend shows a notable increase in sunshine from the chilly depths of winter to the sun-drenched summer, culminating in a serene September that perfectly bridges the seasons.
In Pyeongchang, South Korea, the likelihood of sunny weather experiences a notable shift as September arrives, with a 31% chance of sunny days. This figure stands in contrast to the peak summer months of July and August, where the chances of sunshine plummet to 27% and 21%, respectively. As autumn begins to settle in, the odds gradually improve, rising towards 43% in October. Overall, while September's sun probabilities may not be at their highest, they indicate a transition towards more favorable weather in the coming months, making it a pleasant time to enjoy the stunning natural scenery of the region.
In September, Pyeongchang, South Korea, experiences a delightful transition in daylight as the summer days begin to wane, offering about 12 hours of sunlight. This month marks a gradual decrease from the peak summer brightness of 14 hours in June, with daylight softly diminishing as autumn approaches. Following the vibrant days of August, which also boasted 13 hours of daylight, September's hours still provide ample time for outdoor activities and exploration. As the year progresses, daylight is set to decline further, but September offers a warm reminder of the season’s lingering warmth and beauty.
September in Pyeongchang brings a gentle breeze with an average wind speed of 2.3 m/s (5 mph), a soothing transition from the summer's calm. As the year progresses, there's a noticeable decline in wind speed during the warmer months of June and July, where winds calm to 1.9 m/s and 1.5 m/s respectively. However, as autumn approaches, the winds pick up slightly in September, hinting at the seasonal shift. Following September, the wind speed stabilizes, revealing a consistent pattern that hovers around 2.0 to 2.7 m/s from October through December. This trend showcases the rhythm of Pyeongchang's climate, where the winds whisper of the impending fall foliage and cooler temperatures.
Weather in Pyeongchang varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Pyeongchang, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present stark contrasts in weather conditions. In September, temperatures range from a mild 6°C (43°F) at night to a warm 28°C (82°F) during the day, with an average of 18°C (65°F). This month witnesses a fair amount of rainfall, totaling 155 mm (6.1 in) over approximately 9 days, and a relatively high humidity level of 77%. In contrast, January is much colder, with temperatures plummeting to a minimum of -21°C (-5°F) and reaching a maximum of just 11°C (52°F), resulting in an average of -3°C (26°F). Precipitation is minimal in January, amounting to only 25 mm (1.0 in) over around 4 days, accompanied by lower humidity at 71%. For a detailed look at January conditions, you can check Pyeongchang weather in January.
September and February present stark contrasts in weather conditions. In September, temperatures range from a mild 6°C (43°F) at night to a warm 28°C (82°F) during the day, with an average of 18°C (65°F). The month experiences significant rainfall, recording 155 mm (6.1 in) over about 9 days, accompanied by a high humidity level of 77%. In contrast, February shows a drastic drop in temperature, with a chilling minimum of -18°C (-1°F) and a maximum of only 17°C (63°F), resulting in an average of -1°C (30°F). Additionally, February is relatively dry, with only 29 mm (1.1 in) of precipitation across 4 days and a lower humidity of 66%. For a closer look at February weather in this region, check Pyeongchang weather in February.
In September, the weather is quite mild with temperatures ranging from a chilly 6°C (43°F) at night to a warm 28°C (82°F) during the day, averaging around 18°C (65°F). The month sees considerable rainfall, totaling 155 mm (6.1 in) over about 9 days, accompanied by a high humidity level of 77%. In contrast, March experiences colder temperatures, with lows plunging to -9°C (16°F) and highs reaching a maximum of 20°C (68°F), leading to an average of only 5°C (42°F). The precipitation is significantly lower in March, totaling 71 mm (2.8 in) over 7 days, and humidity is also reduced to 64%. For more details on March weather, you can check Pyeongchang weather in March.
When comparing the weather in September and April, there are notable differences in temperature and precipitation. In September, the average temperature reaches a comfortable 18°C (65°F), with maximums soaring up to 28°C (82°F), creating a warm and pleasant atmosphere. In contrast, April tends to be cooler, with an average of 10°C (51°F) and minimum temperatures dipping as low as -3°C (27°F). Additionally, September experiences higher precipitation, totaling 155 mm (6.1 in) over 9 days, while April sees significantly less rain, accumulating 83 mm (3.3 in) over 8 days. The humidity remains relatively similar, with September at 77% and April at 74%. For more detailed insights on April weather, you can check Pyeongchang weather in April.
When comparing the weather in September and May, one can observe notable differences in temperature and precipitation patterns. September typically experiences a wider temperature range, with minimums around 6°C (43°F) and maximums reaching up to 28°C (82°F), resulting in an average of 18°C (65°F). In contrast, May has cooler nights with minimum temperatures of 2°C (36°F) and an average temperature of 16°C (61°F), while maximums peak at 29°C (85°F).
Additionally, September is characterized by higher precipitation levels, totaling 155 mm (6.1 in) over approximately 9 days, compared to May's 91 mm (3.6 in) spread across 10 days, signifying a wetter month. Humidity in both months remains relatively high, hovering around 77% in September and slightly higher at 79% in May. For a more detailed look at May's weather specifics, check out Pyeongchang weather in May.
In comparing the weather between September and June, we find notable differences in temperature and precipitation. September experiences cooler temperatures, with a minimum of 6°C (43°F) and an average of 18°C (65°F), while June is generally warmer, starting at a minimum of 8°C (47°F) and reaching an average of 20°C (68°F). The maximum temperatures in June can go up to 31°C (89°F), compared to September's high of 28°C (82°F). Additionally, September sees higher precipitation levels with 155 mm (6.1 in) over 9 days, in contrast to June's 79 mm (3.1 in) over just 8 days, making it a somewhat drier month. Both months exhibit high humidity, with September at 77% and June slightly higher at 82%. For more details, you can refer to Pyeongchang weather in June.
In comparing September and July weather, September offers a more moderate range of temperatures, with minimums around 6°C (43°F) and maximums reaching 28°C (82°F), resulting in a comfortable average of 18°C (65°F). In contrast, July is notably warmer, with minimum temperatures of 14°C (57°F) and maximums soaring to 33°C (92°F), averaging at 23°C (74°F). July also experiences higher humidity levels at 91% and greater precipitation, totaling 221 mm (8.7 in) over 16 days, compared to September's 155 mm (6.1 in) over just 9 days. For a more detailed look at July weather in this region, you can visit Pyeongchang weather in July.
Comparing the weather in September to that of August reveals notable differences in temperature and precipitation patterns. September experiences a cooler range, with minimum temperatures dropping to 6°C (43°F) and an average of 18°C (65°F), contrasting sharply with August's warmer minimum of 12°C (54°F) and an average of 24°C (75°F). Additionally, while September sees an average maximum temperature of 28°C (82°F), August peaks at a much warmer 35°C (95°F). Rainfall also varies significantly; September records 155 mm (6.1 in) over 9 days, whereas August has a higher total precipitation of 235 mm (9.2 in) across 17 days. Humidity levels are higher in August at 91%, compared to September's 77%. For more detailed insights on August weather, you can visit Pyeongchang weather in August.
In September, the weather is typically warmer with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 28°C (82°F) and an average of 18°C (65°F). The month is also characterized by significant rainfall, receiving about 155 mm (6.1 in) over 9 days, alongside a humidity level of 77%. In contrast, October brings cooler temperatures, with a minimum dipping to -3°C (27°F) and an average of 12°C (54°F), while the maximum is slightly lower at 26°C (80°F). Rainfall decreases significantly to 70 mm (2.8 in) over just 6 days, and humidity remains similar at 78%. For a detailed look, you can check out Pyeongchang weather in October.
September and November showcase a stark contrast in weather conditions. September typically boasts a mild climate with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 28°C (82°F), coupled with an average temperature of 18°C (65°F). It also experiences considerable rainfall, averaging 155 mm (6.1 in) across 9 days, with humidity levels around 77%. In contrast, November ushers in cooler temperatures, with a minimum dipping to -8°C (18°F) and an average of just 5°C (42°F), although it can peak at 19°C (67°F). Precipitation significantly decreases to 44 mm (1.7 in) over just 6 days, while humidity rises slightly to 80%. For more detailed insights on November weather, you can check Pyeongchang weather in November.
When comparing the weather in September and December, the contrast is striking. September enjoys milder temperatures, ranging from a minimum of 6°C (43°F) to a comfortable average of 18°C (65°F), and can reach up to 28°C (82°F). It also experiences relatively high precipitation, with 155 mm (6.1 in) over 9 days, and humidity levels around 77%. In contrast, December brings a sharp drop in temperatures, with lows plummeting to -22°C (-8°F) and an average of -2°C (29°F), peaking at just 12°C (53°F). The month is drier, with only 24 mm (0.9 in) of precipitation over 4 days and a similarly high humidity level of 76%. For more detailed information, check out Pyeongchang weather in December.
As September arrives in Pyeongchang, the weather begins to transition into a cooler and more refreshing phase compared to the sweltering summer months. With maximum temperatures reaching a pleasant 28°C (82°F) and average conditions hovering around 18°C (65°F), outdoor enthusiasts can enjoy the stunning landscapes in comfort. The 77% humidity and 155 mm of precipitation over approximately 9 days signal the tail end of the monsoon season, allowing for frequent, gentle showers that nourish the vibrant autumn foliage. This month serves as a lovely prelude to fall, making it an ideal time for visitors to explore the beauty of Pyeongchang. For a comprehensive understanding of what to expect throughout the year, delve deeper into Pyeongchang Climate.