SeoulPhoto: Basile Morin · CC BY-SA 4.0South Korea · Asia
Best time to visit Seoul
Seoul has cold, dry winters and hot, humid summers with a rainy spell in July. The average daily maximum temperature in Seoul is highest in August at around 28 °C.
Climate decision
Best travel months for Seoul
Top recommendation
Next highest scores
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Latest 5-year values 2021–2025
Average of the five most recent complete years compared with the 1991–2025 climate average.
October · Wet days
11.4 days/month
1991–2025: 7 days/month
+4.4 days/month · higher
October · Monthly precipitation
116.3 mm/month
1991–2025: 64.3 mm/month
+52 mm/month · higher
March · Mean daily maximum
10.9 °C
1991–2025: 9.1 °C
+1.8 °C · higher
July · Sunshine per day
6.2 h/day
1991–2025: 5.6 h/day
+0.6 h/day · higher
July: 54/155 days at or above 30 °C; highest single value 34.2 °C.
Five-year historical sample, not a weather forecast or long-term climate trend. Individual hot days can be far above the monthly mean.
Annual profile · City climate
Seoul: choose the season before the trip style
The lowest and highest average daily highs are 27.5 °C apart. Temperature is therefore the first decision layer, while rain and sunshine refine the choice of month.
How to read the curve
A single annual score hides the change of seasons. The useful question is which temperature window suits the planned city trip.
Lowest average daily low
January · -6.7 °C
Highest average daily high
August · 28.3 °C
Most rainy days
July · 18.3
Most sunshine
May · 6.9 h
Month by month
Overall suitability per month. Tap a month for details.
All climate figures compared
The table is the complete accessible data view; the charts below highlight selected patterns.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Rain mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| January | 1 | -7 | 4 | 21 | 3.1 | 77 | 3.2 | 49 |
| February | 3 | -5 | 4 | 29 | 4.1 | 74 | 3.3 | 52 |
| March | 9 | -1 | 6 | 43 | 5.3 | 74 | 3.2 | 55 |
| April | 16 | 5 | 7 | 69 | 6.4 | 74 | 3.1 | 69 |
| May | 21 | 11 | 8 | 95 | 6.9 | 76 | 2.8 | 83 |
| June | 25 | 16 | 11 | 136 | 6.6 | 78 | 2.3 | 79 |
| July | 28 | 21 | 18 | 329 | 5.6 | 85 | 2.7 | 55 |
| August | 28 | 22 | 18 | 275 | 5.7 | 84 | 2.5 | 54 |
| September | 25 | 17 | 11 | 147 | 5.3 | 80 | 2.5 | 79 |
| October | 18 | 10 | 7 | 64 | 4.4 | 76 | 2.7 | 76 |
| November | 11 | 3 | 8 | 51 | 3.1 | 76 | 3.1 | 52 |
| December | 3 | -4 | 5 | 26 | 2.7 | 77 | 3.3 | 48 |
Climate through the year
Compare temperature, rainy days, sunshine and, for coastal destinations, sea temperature month by month.
Find a place to stay
Where to stay in Seoul
Compare available stays, prices and cancellation terms for Seoul on Booking.com.
Booking.comFind places to stayAffiliate link: there is no extra cost to you.
Useful next decisions
More comparisons
Similar destinations
The number is the overall climate score, not a similarity score.
Frequently asked questions
When is the best time to visit Seoul?
The strongest climate months are May, June, September, October. Values are historical averages, not a forecast.
Which month has the highest average daily maximum temperature in Seoul?
The average daily maximum temperature in Seoul is highest in August at around 28 °C.