Wonsan weather by month & the best time to visit
🇰🇵 North Korea · beach resort · hot-summer continental climate
The best time to visit Wonsan is May — its sunniest month (Sunshine Score 75/100), with June and October close behind. Wonsan averages about 2,077 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 85 mm of rain in May.
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- Sun hours / year
- 2,077
- Sunniest month
- May
- Peak score
- 75/100
- Rain / year
- 1,292 mm
- Snow / year
- ≈54 cm
- Midday UV at peak
- 5 (moderate)
- Sea at warmest
- 29°C / 84°F
- Population
- 329k
- Elevation
- Sea level
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When is the best time to visit Wonsan?
For sunshine, the best time to visit Wonsan is May, then June and October. The dullest month is January (0/100, 17 mm of rain). The full month-by-month picture is in the table below.
How sunny is Wonsan?
Wonsan gets a moderate 2,077 hours of sunshine a year. 75 Sunshine Score points separate May (75) from January (0), so the month you pick matters. It ranks #2 of 4 destinations in North Korea for annual sunshine, right at the national median of 2,077 hours. Rain is strongly seasonal here: roughly 62% of the year's 1,292 mm falls in the three months around August.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 0° / 32°F | -8° / 18°F | 17 mm | 1 | 2° / 36°F |
| February | 0 | 3° / 37°F | -5° / 23°F | 27 mm | 2 | 2° / 36°F |
| March | 7 | 9° / 48°F | -1° / 30°F | 33 mm | 3 | 5° / 41°F |
| April | 46 | 15° / 59°F | 5° / 41°F | 66 mm | 4 | 10° / 50°F |
| May | 75 | 22° / 72°F | 11° / 52°F | 85 mm | 5 | 16° / 61°F |
| June | 71 | 26° / 79°F | 17° / 63°F | 109 mm | 5 | 21° / 70°F |
| July | 63 | 28° / 82°F | 21° / 70°F | 359 mm | 5 | 25° / 77°F |
| August | 63 | 28° / 82°F | 22° / 72°F | 290 mm | 5 | 29° / 84°F |
| September | 63 | 24° / 75°F | 17° / 63°F | 151 mm | 5 | 26° / 79°F |
| October | 66 | 18° / 64°F | 10° / 50°F | 65 mm | 3 | 20° / 68°F |
| November | 13 | 10° / 50°F | 2° / 36°F | 66 mm | 2 | 15° / 59°F |
| December | 0 | 2° / 36°F | -5° / 23°F | 24 mm | 1 | 7° / 45°F |
Sea temperature in Wonsan by month
The sea off Wonsan is warmest in August at around 29°C / 84°F, and coolest in January at 2°C / 36°F. The water sits at a comfortable 21°C or warmer roughly 4 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Wonsan on the interactive sunshine globe →
Nearby places for sunshine
- Yangyang South Korea · 160 km · best in May · 1,941 h sun/yr
- Seoul South Korea · 209 km · best in Jun · 2,037 h sun/yr
- Cheongju South Korea · 272 km · best in May · 1,963 h sun/yr
- Gunsan South Korea · 371 km · best in Oct · 1,884 h sun/yr
- Daegu South Korea · 378 km · best in Oct · 2,111 h sun/yr
- Ulsan South Korea · 430 km · best in Oct · 1,954 h sun/yr
Nearest destinations
- Hamhŭng North Korea · 65 km · 2,076 h sun/yr · best in May
- Pyongyang North Korea · 157 km · 2,173 h sun/yr · best in May
- Wonju South Korea · 197 km · 1,976 h sun/yr · best in May
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