Weather in Seoul in October 2025
Average weather
Average temperature in Seoul in October
The temperature in October is +20°C on average, with a range between a maximum of +24°C during the day and a minimum of +3°C at night.
The average maximum temperature goes down 24% by the end of the month, compared with the beginning of the month, from +24°C to +19°C.
Is Seoul warm or cold in October?
Seoul is typically mild in October.
Maximum temperatures go down compared to the previous month from +26°C to +20°C. The minimum temperature also goes down from +17°C to +9°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how October is compared to other months in Seoul:
Climate in Seoul in October
| September | October | November | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +26°C | +20°C | +11°C | ||||
| Min. temperature | ||||||
| +5°C | -3°C | -11°C | ||||
| Max. temperature | ||||||
| +33°C | +29°C | +25°C | ||||
| Rainfall | ||||||
| 117 mm | 47 mm | 45 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 72% | 68% | 67% | ||||
| Air pressure | ||||||
| 1013 HPa | 1018 HPa | 1022 HPa | ||||
| Sunny days | ||||||
| 10 | 14 | 11 | ||||
| Cloudy days | ||||||
| 9 | 9 | 9 | ||||
| Rainy days | ||||||
| 10 | 7 | 8 | ||||
| Snowy days | ||||||
| 0 | 0 | 1 | ||||
October weather is still as good as in September. It’s getting colder in October. From +26°C in the day, the average maximum temperature lowers to +20°C. As October arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 117 mm to 47 mm. It feels drier, as humidity decreases from 72% to 68%. The average wind speed doesn’t change much during October, staying around 2 m/s. The good news is there are likely to be more sunny days in October, from 10 to 14.
November brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Seoul is gradually increasing during October, going from 2 m/s to 2 m/s over the course of the month.
Rain
How was the weather last October in Seoul?
Climate Change over Years
The climate in Seoul in October has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+15°C) and the highest in 2021 (+18°C). The driest year was 2001 with only 618 mm of rainfall, and the wettest year was 2020 with 1720 mm.
FAQ
Is October a good time to visit Seoul?
Can you sunbathe in Seoul in October?
Is Seoul rainy in October?
Is it sunny in Seoul in October?
Other cities in South Korea
Monthly weather in Seoul
Source of the data
For this page, we’ve looked at the typical weather in Seoul, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.