Best time to visit Suwon
The best time to visit Suwon is May and October, judged on twenty years of weather records and the events worth going for.
Suwon, Gyeonggi-do, South Korea
°C
mm
- Average daily high and low
- Precipitation
- Good month
- Best month
- Made good or best by an event
| Month | Average daily high | Average daily low | Precipitation | Verdict |
|---|---|---|---|---|
| January | 2.6 °C / 37 °F | -6 °C / 21 °F | 17 mm / 0.7 in | neither best nor good |
| February | 5.3 °C / 42 °F | -3.7 °C / 25 °F | 24 mm / 0.9 in | neither best nor good |
| March | 11.4 °C / 53 °F | 1.3 °C / 34 °F | 42 mm / 1.6 in | neither best nor good |
| April | 17.6 °C / 64 °F | 6.8 °C / 44 °F | 68 mm / 2.7 in | good month |
| May | 23.1 °C / 74 °F | 12.6 °C / 55 °F | 90 mm / 3.6 in | best month |
| June | 27.1 °C / 81 °F | 18.2 °C / 65 °F | 105 mm / 4.1 in | good month |
| July | 28.9 °C / 84 °F | 22.7 °C / 73 °F | 290 mm / 11.4 in | neither best nor good |
| August | 29.9 °C / 86 °F | 23.3 °C / 74 °F | 219 mm / 8.6 in | neither best nor good |
| September | 26.2 °C / 79 °F | 17.9 °C / 64 °F | 131 mm / 5.2 in | good month |
| October | 20.3 °C / 69 °F | 10.4 °C / 51 °F | 60 mm / 2.4 in | best month |
| November | 12.6 °C / 55 °F | 3.2 °C / 38 °F | 47 mm / 1.9 in | neither best nor good |
| December | 4.3 °C / 40 °F | -4 °C / 25 °F | 25 mm / 1 in | neither best nor good |
Good and best months depend on more than temperature, rain and events. How they are chosen
Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:
- Daytime highs
- Night-time lows
- How warm it feels
- Humidity
- How much of the day is sunny
- Hours of daylight
- Monthly rainfall
- How many days it rains
- Days of heavy rain
- Wind
- Snowfall and days with snow
- Major events, such as festivals
The chart shows the good and best months for exploring outdoors.
The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.
Best months by activity
Exploring outdoors
Mild days and nights, mostly dry and bright. The default for 'when should I go'.
- JJanuary: neither
- FFebruary: neither
- MMarch: neither
- AApril: good
- MMay: best
- JJune: good
- JJuly: neither
- AAugust: neither
- SSeptember: good
- OOctober: best
- NNovember: neither
- DDecember: neither
- Best
- May, October
- Good
- April, June, September
Cold, short winters (December-February) and the hot, extremely humid monsoon spanning July-August rule out comfortable sightseeing; spring and the mild, dry autumn around September-October give the best walking weather, with October the standout.
Why these months
April · good
In its favour: feels like (high) 15.5 °C / 60 °F, share of daylight that is sunny 75%, average daily high 17.6 °C / 64 °F, days with heavy rain 2.5 days, relative humidity 63%, average daily low 6.8 °C / 44 °F.
Against: wet days 7.3 days, precipitation 68 mm / 2.7 in.
Watch out for: Yellow dust storms.
May · best
In its favour: feels like (high) 22.8 °C / 73 °F, average daily high 23.1 °C / 74 °F, share of daylight that is sunny 72%, average daily low 12.6 °C / 55 °F, relative humidity 67%.
Against: days with heavy rain 3.2 days, precipitation 90 mm / 3.6 in, wet days 7.2 days.
Watch out for: Yellow dust storms.
June · good
In its favour: share of daylight that is sunny 70%, days with heavy rain 3 days, average daily low 18.2 °C / 65 °F.
Against: feels like (high) 29.1 °C / 84 °F, precipitation 105 mm / 4.1 in, average daily high 27.1 °C / 81 °F, relative humidity 72%, wet days 7.8 days.
September · good
In its favour: feels like (high) 28.1 °C / 83 °F, share of daylight that is sunny 69%, average daily high 26.2 °C / 79 °F, average daily low 17.9 °C / 64 °F.
Against: precipitation 131 mm / 5.2 in, days with heavy rain 3.5 days, relative humidity 75%, wet days 8.3 days.
Also on: Dongje (Town Festival) near Chuseok.
Watch out for: Chuseok.
October · best
In its favour: feels like (high) 19.4 °C / 67 °F, average daily high 20.3 °C / 69 °F, precipitation 60 mm / 2.4 in, share of daylight that is sunny 79%, wet days 5.7 days, days with heavy rain 1.8 days, average daily low 10.4 °C / 51 °F, relative humidity 72%.
Also on: Dodang-gut at Yeongdong Turtle Mountain Hall, Dongje (Town Festival) near Chuseok.
Watch out for: Chuseok.
Hiking and trekking
Cool enough to climb in, dry enough to enjoy, long enough days.
- JJanuary: neither
- FFebruary: neither
- MMarch: good
- AApril: best
- MMay: best
- JJune: good
- JJuly: neither
- AAugust: neither
- SSeptember: good
- OOctober: best
- NNovember: good
- DDecember: neither
- Best
- April–May, October
- Good
- March, June, September, November
The July-August monsoon brings heat, humidity and heavy rain that make trails miserable, and deep winter (December-February) is too cold with the shortest daylight; spring from March to June and autumn from September to November suit trekking, with April, May and October the most reliable.
Why these months
March · good
In its favour: average daily high 11.4 °C / 53 °F, precipitation 42 mm / 1.6 in, wet days 6.5 days, days with heavy rain 1.2 days, share of daylight that is sunny 79%, daylight per day 12 h, feels like (high) 8.1 °C / 47 °F, average daily low 1.3 °C / 34 °F, wind (daily max) 18 km/h / 11 mph.
Watch out for: Yellow dust storms.
April · best
In its favour: average daily high 17.6 °C / 64 °F, days with heavy rain 2.5 days, feels like (high) 15.5 °C / 60 °F, average daily low 6.8 °C / 44 °F, share of daylight that is sunny 75%, daylight per day 13.2 h, wind (daily max) 18 km/h / 11 mph.
Against: wet days 7.3 days, precipitation 68 mm / 2.7 in.
Watch out for: Yellow dust storms.
May · best
In its favour: average daily high 23.1 °C / 74 °F, average daily low 12.6 °C / 55 °F, share of daylight that is sunny 72%, daylight per day 14.2 h, feels like (high) 22.8 °C / 73 °F, wind (daily max) 17 km/h / 10 mph.
Against: days with heavy rain 3.2 days, precipitation 90 mm / 3.6 in, wet days 7.2 days.
Watch out for: Yellow dust storms.
June · good
In its favour: share of daylight that is sunny 70%, daylight per day 14.7 h, days with heavy rain 3 days, wind (daily max) 15 km/h / 9 mph.
Against: average daily high 27.1 °C / 81 °F, feels like (high) 29.1 °C / 84 °F, precipitation 105 mm / 4.1 in, wet days 7.8 days, relative humidity 72%, average daily low 18.2 °C / 65 °F.
September · good
In its favour: share of daylight that is sunny 69%, daylight per day 12.4 h, wind (daily max) 13 km/h / 8 mph.
Against: precipitation 131 mm / 5.2 in, days with heavy rain 3.5 days, wet days 8.3 days, relative humidity 75%, average daily high 26.2 °C / 79 °F, feels like (high) 28.1 °C / 83 °F, average daily low 17.9 °C / 64 °F.
Also on: Dongje (Town Festival) near Chuseok.
Watch out for: Chuseok.
October · best
In its favour: average daily high 20.3 °C / 69 °F, precipitation 60 mm / 2.4 in, wet days 5.7 days, days with heavy rain 1.8 days, feels like (high) 19.4 °C / 67 °F, average daily low 10.4 °C / 51 °F, share of daylight that is sunny 79%, daylight per day 11.2 h, wind (daily max) 14 km/h / 9 mph.
Also on: Dodang-gut at Yeongdong Turtle Mountain Hall, Dongje (Town Festival) near Chuseok.
Watch out for: Chuseok.
November · good
In its favour: average daily high 12.6 °C / 55 °F, precipitation 47 mm / 1.9 in, wet days 7.1 days, days with heavy rain 1.3 days, share of daylight that is sunny 77%, average daily low 3.2 °C / 38 °F, feels like (high) 9.7 °C / 49 °F, wind (daily max) 15 km/h / 10 mph, daylight per day 10.2 h.
Against: sunshine per day 7.8 h.
An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is 곤지암스키장, Konjiam Resort, 24 km away.
Weather averages
Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels like (high) | -1.9 °C | 1.1 °C | 8.1 °C | 15.5 °C | 22.8 °C | 29.1 °C | 33.2 °C | 34.6 °C | 28.1 °C | 19.4 °C | 9.7 °C | 0.2 °C |
| Days with heavy rain | 0.2 days | 0.7 days | 1.2 days | 2.5 days | 3.2 days | 3 days | 7.4 days | 6 days | 3.5 days | 1.8 days | 1.3 days | 0.6 days |
| Time rain usually falls | 8 pm | 10 am | 2 am | 11 am | 5 am | 1 am | 7 am | 9 am | 3 am | 12 pm | 5 am | 3 pm |
| Sunshine per day | 8 h | 8.6 h | 9.4 h | 9.9 h | 10.2 h | 10.2 h | 8 h | 8.8 h | 8.5 h | 8.8 h | 7.8 h | 7.7 h |
| Relative humidity | 64% | 63% | 64% | 63% | 67% | 72% | 82% | 80% | 75% | 72% | 68% | 66% |
Air quality
Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air pollution (PM2.5) 2022–2025 | 32.9 µg/m³ | 28.9 µg/m³ | 33.2 µg/m³ | 31.1 µg/m³ | 29.3 µg/m³ | 29.2 µg/m³ | 23.4 µg/m³ | 27.5 µg/m³ | 22.3 µg/m³ | 23.8 µg/m³ | 27.5 µg/m³ | 28 µg/m³ |
| Air pollution (PM2.5, daily peak) 2022–2025 | 55.6 µg/m³ | 48.3 µg/m³ | 51.3 µg/m³ | 48.5 µg/m³ | 45.7 µg/m³ | 46.6 µg/m³ | 41.3 µg/m³ | 47.7 µg/m³ | 39.1 µg/m³ | 40.1 µg/m³ | 47.6 µg/m³ | 49.8 µg/m³ |
- Good 15 µg/m³ or less
- Fair 15 to 25 µg/m³
- Moderate 25 to 37.5 µg/m³
- Poor 37.5 to 50 µg/m³
- Very poor 50 to 75 µg/m³
- Extremely poor over 75 µg/m³
Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.
Events and seasons
What the weather records cannot show. A major event can lift a month to good or best. The warnings are there to help you plan, and never count against a month.
Reasons to go
- Dongje (Town Festival) near Chuseok
September and October, dates vary from year to year
- Dodang-gut at Yeongdong Turtle Mountain Hall
October, dates vary from year to year
Worth knowing before you go
- Lunar New Year (Seollal)
January and February, dates vary from year to year
- Yellow dust storms
March, April and May
- Chuseok
September and October, dates vary from year to year
World Heritage sites nearby
UNESCO World Heritage sites within 25 km, nearest first.
- Hwaseong Fortress
1 km away