July is one of the warmer months of the year in Korea, with average highs near 30.6°C and lows around 23.9°C (mean 27.3°C). It is a relatively wet time of year, averaging 327 mm of rainfall and 84% relative humidity across the period.
July is one of the warmer months of the year in Korea. Across 45 years of records, the warmest July in Korea was 2002 — when the month averaged 28.9°C — while the coldest were 1990 and 2001 at 26.1°C. Typical July days reach 30.6°C with nights near 23.9°C. The long-term July temperature trend is broadly flat.
July is a relatively wet time of year in Korea, averaging 327 mm of rainfall. The wettest July on record was 2025 with 568 mm, while the driest was 2002 at 87 mm.
Relative humidity in Korea during July averages 84%. The most humid July was 2001 at 90%, and the least humid was 2002 at 72%.
July receives about 4.3 kWh/m²/day of solar energy in Korea. The sunniest Julys were 1992 and 2023 at 4.9 kWh/m²/day, and the cloudiest was 2001 at 3.5.
Average wind speed in Korea during July is 2.4 m/s. The windiest July was 2001 at 3.4 m/s, while the calmest were 2011, 2012 and 2020, among others at 2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.0°C | 27.3°C | 27.2°C | 27.5°C | 27.3°C | +0.3°C |
| Avg High | 30.4°C | 30.7°C | 30.6°C | 31.0°C | 30.6°C | +0.2°C |
| Avg Low | 23.6°C | 23.9°C | 23.8°C | 24.1°C | 24.0°C | +0.4°C |
| Avg Rain | 338 mm | 339 mm | 302 mm | 327 mm | 328 mm | -10 mm |
July temperatures in Korea have risen by about 0.5°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 20.7°C (2018) to a record high of 39.1°C (2012).
Rainfall in July is a relatively wet time of year, averaging 327 mm, with a wettest year of 568 mm.
A quieter season to visit Korea
If your dates are flexible, the more temperate months of February and November tend to be the most comfortable for visiting Korea. That said, July — with days averaging 30.6°C and nights around 23.9°C (mean 27.3°C) and higher rainfall (327 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🌧️ | 29.6°C | 26.7°C | 23.7°C | 31.4°C | 21.7°C | 568 mm | 88% | 2.1 m/s | 3.6 |
| 2024 | 31.3°C | 27.9°C | 24.4°C | 33.5°C | 23.3°C | 335 mm | 85% | 2.2 m/s | 4.1 |
| 2023 | 31.6°C | 27.9°C | 24.3°C | 33.5°C | 23.2°C | 253 mm | 83% | 2.2 m/s | 4.9 |
| 2022 | 30.6°C | 27.2°C | 23.8°C | 32.7°C | 22.9°C | 282 mm | 85% | 2.2 m/s | 4.6 |
| 2021 | 30.2°C | 27.1°C | 23.9°C | 31.9°C | 22.9°C | 283 mm | 86% | 2.4 m/s | 4.1 |
| 2020 | 30.0°C | 26.8°C | 23.7°C | 31.6°C | 22.3°C | 248 mm | 87% | 2 m/s | 4.2 |
| 2019 | 30.9°C | 27.5°C | 24.1°C | 33.1°C | 22.9°C | 380 mm | 84% | 2.4 m/s | 4.4 |
| 2018 | 30.6°C | 27.2°C | 23.8°C | 34.0°C | 20.7°C | 380 mm | 85% | 2.4 m/s | 3.9 |
| 2017 | 29.4°C | 26.6°C | 23.7°C | 32.4°C | 22.5°C | 433 mm | 87% | 2.5 m/s | 3.6 |
| 2016 | 30.5°C | 27.2°C | 24.0°C | 34.7°C | 22.5°C | 351 mm | 84% | 2.4 m/s | 3.9 |
| 2015 | 30.5°C | 27.1°C | 23.7°C | 34.8°C | 22.1°C | 282 mm | 84% | 2.5 m/s | 4.5 |
| 2014 | 32.7°C | 28.8°C | 24.9°C | 39.1°C | 21.6°C | 288 mm | 76% | 2.4 m/s | 4.6 |
| 2013 | 30.4°C | 27.1°C | 23.8°C | 32.2°C | 22.2°C | 309 mm | 86% | 2.2 m/s | 4.1 |
| 2012 | 31.9°C | 28.0°C | 24.2°C | 39.1°C | 21.8°C | 374 mm | 81% | 2 m/s | 3.7 |
| 2011 | 30.4°C | 27.0°C | 23.7°C | 32.6°C | 21.9°C | 224 mm | 85% | 2 m/s | 4.7 |
| 2010 | 32.4°C | 28.6°C | 24.7°C | 36.8°C | 23.2°C | 243 mm | 78% | 2.2 m/s | 4.6 |
| 2009 | 31.2°C | 27.6°C | 24.1°C | 33.7°C | 23.0°C | 247 mm | 82% | 2.5 m/s | 4.4 |
| 2008 | 29.5°C | 26.4°C | 23.3°C | 31.0°C | 22.7°C | 372 mm | 88% | 2.3 m/s | 4.2 |
| 2007 | 30.1°C | 26.9°C | 23.6°C | 32.7°C | 20.8°C | 376 mm | 85% | 2.6 m/s | 4.3 |
| 2006 | 31.0°C | 27.6°C | 24.1°C | 36.1°C | 22.8°C | 349 mm | 81% | 3.1 m/s | 3.6 |
| 2005 | 29.9°C | 26.8°C | 23.7°C | 32.9°C | 22.2°C | 392 mm | 86% | 2.6 m/s | 4.3 |
| 2004 | 30.0°C | 26.8°C | 23.5°C | 33.5°C | 22.4°C | 245 mm | 85% | 2.2 m/s | 4.8 |
| 2003 | 30.8°C | 27.5°C | 24.2°C | 33.1°C | 22.8°C | 203 mm | 84% | 2 m/s | 4.5 |
| 2002 🔥 | 33.5°C | 28.9°C | 24.3°C | 37.3°C | 22.9°C | 87 mm | 72% | 2.5 m/s | 4.7 |
| 2001 | 28.8°C | 26.1°C | 23.4°C | 32.0°C | 22.0°C | 531 mm | 90% | 3.4 m/s | 3.5 |
| 2000 | 30.7°C | 27.2°C | 23.7°C | 34.7°C | 21.9°C | 219 mm | 83% | 2.1 m/s | 4.4 |
| 1999 | 30.9°C | 27.2°C | 23.6°C | 33.8°C | 22.4°C | 242 mm | 82% | 2.5 m/s | 4.3 |
| 1998 | 30.5°C | 27.3°C | 24.0°C | 34.7°C | 22.9°C | 262 mm | 85% | 2.6 m/s | 4.5 |
| 1997 | 29.8°C | 26.8°C | 23.8°C | 32.0°C | 22.8°C | 406 mm | 87% | 2.7 m/s | 4.2 |
| 1996 | 30.8°C | 27.3°C | 23.8°C | 34.6°C | 21.5°C | 366 mm | 83% | 2.1 m/s | 4.6 |
| 1995 | 31.5°C | 27.8°C | 24.1°C | 38.0°C | 22.0°C | 369 mm | 79% | 2.3 m/s | 4.7 |
| 1994 | 29.4°C | 26.6°C | 23.7°C | 31.3°C | 22.5°C | 449 mm | 89% | 2.8 m/s | 4.1 |
| 1993 | 30.6°C | 27.2°C | 23.7°C | 33.9°C | 22.3°C | 328 mm | 85% | 2.2 m/s | 4.8 |
| 1992 | 32.3°C | 28.2°C | 24.1°C | 38.6°C | 21.6°C | 294 mm | 76% | 2.4 m/s | 4.9 |
| 1991 | 31.9°C | 28.2°C | 24.6°C | 35.7°C | 22.9°C | 372 mm | 78% | 2.8 m/s | 4.4 |
| 1990 ❄️ | 29.1°C | 26.1°C | 23.2°C | 31.2°C | 21.8°C | 304 mm | 89% | 2.7 m/s | 4 |
| 1989 | 30.2°C | 26.8°C | 23.5°C | 31.8°C | 21.8°C | 189 mm | 84% | 2.4 m/s | 4.6 |
| 1988 | 30.1°C | 26.9°C | 23.7°C | 31.8°C | 22.9°C | 306 mm | 86% | 2.2 m/s | 4.4 |
| 1987 | 32.0°C | 28.1°C | 24.2°C | 38.0°C | 21.6°C | 282 mm | 77% | 2.9 m/s | 4.6 |
| 1986 | 29.9°C | 26.6°C | 23.4°C | 33.1°C | 21.1°C | 302 mm | 86% | 2.5 m/s | 4.7 |
| 1985 | 30.1°C | 26.8°C | 23.5°C | 36.6°C | 21.6°C | 377 mm | 82% | 2.4 m/s | 4.3 |
| 1984 | 29.9°C | 26.6°C | 23.3°C | 32.7°C | 22.2°C | 388 mm | 85% | 2 m/s | 4.6 |
| 1983 | 31.4°C | 27.7°C | 23.9°C | 34.6°C | 22.3°C | 354 mm | 81% | 2.1 m/s | — |
| 1982 | 30.9°C | 27.2°C | 23.5°C | 36.9°C | 21.7°C | 402 mm | 83% | 2.4 m/s | — |
| 1981 | 29.3°C | 26.4°C | 23.4°C | 30.5°C | 22.4°C | 445 mm | 88% | 2.5 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 30.6°C with lows near 23.9°C (mean 27.3°C), based on 45 years of NASA POWER data.
July averages 327 mm of rainfall in Korea, a relatively wet time of year. The wettest on record was 568 mm in 2025.
The hottest July reached 39.1°C in 2012. The coldest dipped to 20.7°C in 2018.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.5°C. Daytime highs moved from 30.3°C to 30.7°C and overnight lows from 23.5°C to 24°C over the same span.
July is one of the warmer months of the year in Korea and a relatively wet time of year, so plan for around 30.6°C daytime highs and 23.9°C at night.
Not quite — July is the 9th coolest month in Korea, averaging 27.3°C.
For July in Korea, pack light, breathable clothing and sun protection, with typical highs of 30.6°C and lows of 23.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 84% — quite humid.
Average wind speed in July is 2.4 m/s. The windiest July on record averaged 3.4 m/s (2001).
The wettest July on record was 2025 with 568 mm. On average, July sees 327 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Korea behaves each July, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for July specifically, along with year-by-year records and how the month has changed over the decades.
