Weather in Daegu in January
South Korea · 20-year averages, January
The month to avoid. January is the month most people should skip in Daegu. Highs sit at 3.5 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.
January ranks 11 of 12 — near the bottom of Daegu's year. October is the month that works, and the swing between the two is 59 points, which is a different holiday rather than a slightly better one.
Rain falls on only 4 days, so an itinerary with no wet-weather fallback is a reasonable risk. Layers, and a genuinely waterproof outer — at 3.5 °C the difference between a good day and a miserable one is entirely down to what you are wearing.
What the averages hide
Averages flatten a month, and this one hides a few things: 28 nights drop below freezing, so anything left outside stays frozen. Across the twenty years measured, the hottest January day reached 16.9 °C and the coldest night fell to -18.8 °C, and the wettest single day dropped 37 mm — roughly 148% of the month's rain in one day.
This is the volatile part. January rainfall has ranged from 4 mm to 91 mm across the twenty years measured — a 87 mm spread around an average of 25 mm. The average is real but almost no individual January looks like it, so treat the figure as the middle of a wide range rather than a forecast.
Wind is light at 9.8 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 79%, which at 3.5 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.
How January sits in the year
This is a turning point in the year — December and February sit on opposite sides of it, so the month contains the change rather than following it.
Daylight in January
January sits at the dark end of Daegu's year — 10 hours of daylight against 14.6 at midsummer, gaining 0.6 hours across the month. Sightseeing days are genuinely shorter, and an itinerary built for summer will not fit.
An inland climate
With no coast nearby, the year swings a fair way — 36.8 °C between the warmest afternoons and the coldest nights, wider than any coastal city at this latitude would manage.
How busy it gets
Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.
Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.
January in Daegu versus nearby
If Daegu is one option among several, the nearby comparison is worth making. Busan is a better bet in January — 2.6 °C warmer, the same number of rain days. Gwangju is close enough to be a coin toss — within a degree on temperature, 2 days more rain.
So: January is a compromise. October is 59 points better and is what Daegu is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.
Every month in Daegu
| Month | High °C | Low °C | Rain days | Rain mm | Humidity % | Daylight h | Score |
|---|---|---|---|---|---|---|---|
| January | 3.5 | -6.6 | 4 | 25 | 79 | 10 | 30 |
| February | 6.7 | -4.1 | 4 | 36 | 75 | 10.9 | 43 |
| March | 12.3 | -0.2 | 7 | 52 | 73 | 11.9 | 61 |
| April | 18.8 | 5.3 | 8 | 89 | 72 | 13.1 | 79 |
| May | 24.7 | 11.5 | 8 | 90 | 71 | 14 | 83 |
| June | 28.6 | 16.9 | 10 | 131 | 74 | 14.6 | 71 |
| July | 29.8 | 21.3 | 17 | 264 | 85 | 14.4 | 48 |
| August | 30.2 | 21.9 | 16 | 242 | 84 | 13.6 | 47 |
| September | 25.5 | 16.5 | 11 | 147 | 84 | 12.5 | 77 |
| October | 20.3 | 9.2 | 5 | 63 | 80 | 11.3 | 89 |
| November | 13.2 | 2.3 | 5 | 37 | 79 | 10.3 | 69 |
| December | 5.4 | -4.3 | 4 | 24 | 79 | 9.7 | 30 |
See all twelve months in Daegu, or where else to go in January.
Planning the rest of the trip
- Flight time to Daegu how long you are actually in the air
- Daegu time zone and the difference from home
- Days until your trip count down to the departure date