Seoul, South Korea skyline

Seoul Weather in July

Typical July weather in Seoul, South Korea, based on 2006–2025 climate averages.

In July, Seoul averages a high of 28.5°C (83.3°F) and a low of 21.8°C (71.2°F), with about 17 rainy days (343 mm of rain) and 7.8 hours of sunshine a day.

Avg high

28.5°C (83.3°F)

Avg low

21.8°C (71.2°F)

Rainfall

343 mm (13.5 in)

Rainy days

17 days

Sunshine

7.8 h / day

Humidity

83%

July vs the rest of the year

Here is how every month in Seoul stacks up against July — the wettest month for rain.

MonthAvg highvs JulyRainRainy days
January1.8°C (35.2°F)−26.7°C (−48.1°F)15 mm3
February4.8°C (40.6°F)−23.7°C (−42.7°F)24 mm4
March10.7°C (51.3°F)−17.8°C (−32°F)43 mm7
April16.8°C (62.2°F)−11.7°C (−21.1°F)72 mm8
May22.4°C (72.3°F)−6.1°C (−11°F)100 mm8
June26.9°C (80.4°F)−1.6°C (−2.9°F)121 mm9
July28.5°C (83.3°F)—343 mm17
August29.1°C (84.4°F)+0.6°C (+1.1°F)257 mm16
September25.1°C (77.2°F)−3.4°C (−6.1°F)135 mm8
October19°C (66.2°F)−9.5°C (−17.1°F)65 mm6
November11°C (51.8°F)−17.5°C (−31.5°F)50 mm7
December3.1°C (37.6°F)−25.4°C (−45.7°F)25 mm5

What July feels like in Seoul

July is mid-summer in Seoul. The midday hours are hot; shade and water matter on long walks. There is little difference between day and night: nights stay warm, and evenings feel much like the afternoon. High humidity makes the heat feel heavier and sticky, especially on still afternoons.

Rain in Seoul in July

Rain is part of normal life this month, falling on about every other day. Rain tends to come in heavy bursts: about 20.2 mm (0.8 in) on an average rainy day. That is heavier than Seoul's usual 12.8 mm per rainy day across the year. July is Seoul's wettest month of the year.

Daylight and sunshine in July

On 15 July the sun rises at about 5:22 am and sets around 7:54 pm local time, giving 14 h 32 min of daylight. Compared with mid-June, the day has lost 13 min. The sun is out for roughly 54% of those daylight hours, so sun and cloud share the day.

How July compares to the rest of the year

Ranked by average high, July comes out as the 2nd warmest month in Seoul. Against June, the average high is 1.6°C (2.9°F) higher, with 221 mm more rain. August continues the upward trend. August averages a high of 29.1°C (84.4°F).

Who July suits

  • Sightseeing: less ideal — rain falls on more than half the days.
  • Parks & outdoor: less ideal — afternoons are too warm to linger outside.
  • Museums & indoor: a good choice — with rain on most days, galleries and museums make easy plans.

Tips for visiting Seoul in July

Rain Protection

Keep a small umbrella in your bag and wear shoes that cope with puddles.

Sun Protection

Sunscreen, a hat and sunglasses; light breathable clothes.

Quick questions

How warm is Seoul in July?

Expect around 28.5°C (83.3°F) in the afternoon and 21.8°C (71.2°F) at night, which most visitors would call hot.

Does it rain a lot in Seoul in July?

Yes, fairly — rain falls about every other day and totals about 343 mm, so an umbrella is worth carrying.

What should I wear in Seoul in July?

The numbers point to rain protection and sun protection. There is little need to change for the evening.

Is July or August better for visiting Seoul?

August scores better on our climate ranking (#11 of 12 vs #12), rated Fair against Fair. August has fewer rainy days.

Is July a good time to visit Seoul?

Fair

Fair — warm to hot days, rain on most days (about 17), heavy rainfall (343 mm). Within Seoul's own year, July ranks #12 of 12 — one of the least comfortable months.

July in other South Korea cities

Drier places in July

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Monthly averages from 20 years of Open-Meteo history (2006–2025), not a forecast — see all 12 months in Seoul weather by month.