Tsushima weather by month & the best time to visit
🇯🇵 Japan · beach resort · humid subtropical climate
The best time to visit Tsushima is October — its sunniest month (Sunshine Score 73/100). Tsushima averages about 1,900 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 91 mm of rain in October.
Jump to: month-by-month table · sea temperature · nearby alternatives · embed this data
- Sun hours / year
- 1,900
- Sunniest month
- October
- Peak score
- 73/100
- Rain / year
- 1,759 mm
- Midday UV at peak
- 7 (high)
- Sea at warmest
- 30°C / 86°F
- Population
- 68k
- Elevation
- 62 m
When is the best time to visit Tsushima?
For sunshine, the best time to visit Tsushima is October. The dullest month is January (0/100, 52 mm of rain). The full month-by-month picture is in the table below.
How sunny is Tsushima?
Tsushima gets a moderate 1,900 hours of sunshine a year. 73 Sunshine Score points separate October (73) from January (0), so the month you pick matters. It ranks #14 of 79 destinations in Japan for annual sunshine, above the national median of 1,773 hours. Rain has a clear season: the wettest stretch, around July, carries about 44% of the annual 1,759 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 8° / 46°F | 5° / 41°F | 52 mm | 2 | 17° / 63°F |
| February | 13 | 10° / 50°F | 6° / 43°F | 73 mm | 3 | 16° / 61°F |
| March | 23 | 12° / 54°F | 9° / 48°F | 109 mm | 4 | 16° / 61°F |
| April | 36 | 15° / 59°F | 12° / 54°F | 157 mm | 5 | 17° / 63°F |
| May | 57 | 19° / 66°F | 16° / 61°F | 176 mm | 6 | 19° / 66°F |
| June | 62 | 22° / 72°F | 20° / 68°F | 221 mm | 6 | 23° / 73°F |
| July | 62 | 25° / 77°F | 24° / 75°F | 312 mm | 7 | 25° / 77°F |
| August | 62 | 28° / 82°F | 26° / 79°F | 233 mm | 7 | 30° / 86°F |
| September | 62 | 25° / 77°F | 23° / 73°F | 209 mm | 6 | 29° / 84°F |
| October | 73 | 21° / 70°F | 19° / 66°F | 91 mm | 4 | 25° / 77°F |
| November | 51 | 16° / 61°F | 13° / 55°F | 71 mm | 3 | 23° / 73°F |
| December | 20 | 11° / 52°F | 7° / 45°F | 55 mm | 2 | 19° / 66°F |
Sea temperature in Tsushima by month
The sea off Tsushima is warmest in August at around 30°C / 86°F, and coolest in February at 16°C / 61°F. The water sits at a comfortable 21°C or warmer roughly 6 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Tsushima on the interactive sunshine globe →
Nearby places for sunshine
- Busan South Korea · 106 km · best in Oct · 2,112 h sun/yr
- Fukuoka Japan · 129 km · best in Oct · 1,752 h sun/yr
- Ulsan South Korea · 146 km · best in Oct · 1,954 h sun/yr
- Saga Japan · 155 km · best in Oct · 1,752 h sun/yr
- Nagasaki Japan · 161 km · best in Oct · 1,779 h sun/yr
- Kitakyushu Japan · 164 km · best in Oct · 1,801 h sun/yr
Nearest destinations
- Iki Japan · 73 km · 1,740 h sun/yr · best in Oct
- Sacheon South Korea · 146 km · 2,112 h sun/yr · best in Oct
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