South Korea (Seoul) · August
Best travel monthPeak seasonSouth Korea · Asia
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ø day, range from coolest to warmest dayØ dayrange | 3° (37°)-5– (23–)9 (48) | 6° (43°)-4– (25–)13 (55) | 12° (54°)2– (36–)20 (68) | 18° (64°)10– (50–)27 (81) | 24° (75°)15– (59–)30 (86) | 28° (82°)21– (70–)33 (91) | 30° (86°)24– (75–)33 (91) | 31° (88°)24– (75–)35 (95) | 27° (81°)20– (68–)31 (88) | 21° (70°)12– (54–)27 (81) | 13° (55°)2– (36–)20 (68) | 4° (39°)-6– (21–)12 (54) |
Ø night, range from coldest to warmest nightØ nightrange | -7° (19°)-14– (7–)1 (34) | -4° (25°)-12– (10–)3 (37) | 1° (34°)-6– (21–)7 (45) | 8° (46°)1– (34–)13 (55) | 13° (55°)7– (45–)18 (64) | 19° (66°)13– (55–)23 (73) | 23° (73°)18– (64–)26 (79) | 24° (75°)17– (63–)27 (81) | 18° (64°)12– (54–)22 (72) | 10° (50°)1– (34–)17 (63) | 3° (37°)-6– (21–)11 (52) | -5° (23°)-13– (9–)4 (39) |
☀️Sunshine | 7h UV 5 | 8h UV 6 | 9h UV 7 | 8h UV 7 | 9h UV 8 | 8h UV 8 | 6h UV 6 | 6h UV 6 | 7h UV 6 | 7h UV 6 | 6h UV 5 | 6h UV 4 |
🌧Rain Days | 3d42mm (1.6") | 3d36mm (1.4") | 4d65mm (2.6") | 6d87mm (3.4") | 6d122mm (4.8") | 7d154mm (6.0") | 12d475mm (18.7") | 12d365mm (14.4") | 7d178mm (7.0") | 5d83mm (3.3") | 6d75mm (3.0") | 3d31mm (1.2") |
Best travel time current monthØ = average · small figures = range: coolest–warmest day / coldest–warmest nightClimate data 2005–2025 · Source: ERA5 + station data
Peak season — flights and hotels at their annual highest. Book early.
August is one of the best travel months for South Korea (Seoul) — conditions are stable, temperatures reach 31°C (88°F), and outdoor activities are excellent.
Daytime highs average 31°C (88°F), cooling to 24°C (75°F) at night (daily average: 27°C (81°F)). Peaks reach around 35°C (95°F), the coldest nights around 17°C (63°F). With 6 sunshine hours per day and 12 rain days (365 mm (14.4 in)), this is one of the cloudier months.
Light, breathable clothing and sun protection are essential. Early mornings and evenings are good for excursions when it's a little cooler.
Hot and humid: from the end of June the jangma rainy season sets in, July brings the most rain and the sun is often hidden behind clouds. Highs sit at 28 to 30°C (82 to 86°F), and well above that on the hottest days. Visitors seek out air-conditioned cafés, museums and night markets.
Packing list for South Korea (Seoul) in August
- Light summer clothes
- Sunscreen
- Sunglasses
- Light umbrella or rain poncho
- Insect repellent
- Travel first-aid kit
Frequently Asked Questions
- Is August a good time to visit South Korea (Seoul)?
- Yes — August is one of the best months to visit South Korea (Seoul) (Climate Score: 54/100). Pleasant temperatures (31°C (88°F)), good sunshine (6 h/day), and few rain days (12) make it one of the most recommended months.
- How warm is it in South Korea (Seoul) in August?
- In August, South Korea (Seoul) sees daily highs of 31°C (88°F). Nights cool to 24°C (75°F), with a daily average of 27°C (81°F). Peaks reach around 35°C (95°F), the coldest nights around 17°C (63°F).
- How much rain falls in South Korea (Seoul) in August?
- In August, South Korea (Seoul) receives an average of 365 mm (14.4 in) of rain over 12 rain days. An umbrella may occasionally be needed.
- How many sunshine hours does South Korea (Seoul) get in August?
- South Korea (Seoul) averages 6 sunshine hours per day in August — below the annual average.
