| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | -0.7° | -10° | 12.3mm | 8 | 14 |
| February | 3° | -6.7° | 3.5mm | 5 | 23 |
| March | 9.7° | -1.2° | 23.7mm | 2 | 58 |
| April | 17.5° | 6.3° | — | — | 86 |
| May | 23.5° | 11.3° | — | — | 94 |
| June | 27.5° | 17.6° | 32.3mm | 10 | 78 |
| July | 29° | 20.9° | 283.7mm | 16 | 62 |
| August | 29.5° | 20.9° | 124.9mm | 13 | 64 |
| September | 25.9° | 15.4° | — | — | 94 |
| October | 19.1° | 7.5° | — | — | 91 |
| November | 9.6° | 0.5° | — | — | 58 |
| December | 1.5° | -7.3° | — | — | 25 |
January in Namp’o averages a daily high of -0.7°C with nights around -10°C. Expect roughly 8 wet days totalling 12.3mm. A hard month to visit for comfort alone.
February in Namp’o averages a daily high of 3°C with nights around -6.7°C. Expect roughly 5 wet days totalling 3.5mm. A hard month to visit for comfort alone.
March in Namp’o averages a daily high of 9.7°C with nights around -1.2°C. Rain is rare — about 2 wet days and 23.7mm across the month. Generally workable, with some weather to plan around.
April in Namp’o averages a daily high of 17.5°C with nights around 6.3°C. Comfortable conditions for being outdoors all day.
May in Namp’o averages a daily high of 23.5°C with nights around 11.3°C. Comfortable conditions for being outdoors all day.
June in Namp’o averages a daily high of 27.5°C with nights around 17.6°C. Expect roughly 10 wet days totalling 32.3mm. Comfortable conditions for being outdoors all day.
July in Namp’o averages a daily high of 29°C with nights around 20.9°C. Expect roughly 16 wet days totalling 283.7mm. Generally workable, with some weather to plan around.
August in Namp’o averages a daily high of 29.5°C with nights around 20.9°C. Expect roughly 13 wet days totalling 124.9mm. Generally workable, with some weather to plan around.
September in Namp’o averages a daily high of 25.9°C with nights around 15.4°C. Comfortable conditions for being outdoors all day.
October in Namp’o averages a daily high of 19.1°C with nights around 7.5°C. Comfortable conditions for being outdoors all day.
November in Namp’o averages a daily high of 9.6°C with nights around 0.5°C. Generally workable, with some weather to plan around.
December in Namp’o averages a daily high of 1.5°C with nights around -7.3°C. A hard month to visit for comfort alone.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Namp’o peaks at 94.
Based on 30 years of records, April–May scores highest for comfort in Namp’o, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 29.5°C.
July is the wettest, averaging 283.7mm of rain across roughly 16 wet days.
January is the coolest month, with average daily highs around -0.7°C.