Wakkanai weather by month & the best time to visit
Japan · seaside town · continental climate
The best time to visit Wakkanai is August — its sunniest month (Sunshine Score 63/100), with July and September close behind. Wakkanai averages about 1,513 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 131 mm of rain in August.
When is the best time to visit Wakkanai?
For sunshine, the best time to visit Wakkanai is August, then July and September. The dullest month is January (0/100, 89 mm of rain). The full month-by-month picture is in the table below.
How sunny is Wakkanai?
Wakkanai isn't a sunny place by world standards: about 1,513 hours of sunshine a year. 63 Sunshine Score points separate August (63) from January (0), so the month you pick matters. It ranks #71 of 79 destinations in Japan for annual sunshine, below the national median of 1,773 hours. The year's 1,152 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | -3° / 27°F | -6° / 21°F | 89 mm | 0 | 3° / 37°F |
| February | 0 | -3° / 27°F | -6° / 21°F | 75 mm | 1 | 1° / 34°F |
| March | 0 | 1° / 34°F | -2° / 28°F | 69 mm | 2 | 3° / 37°F |
| April | 0 | 6° / 43°F | 2° / 36°F | 60 mm | 3 | 6° / 43°F |
| May | 12 | 10° / 50°F | 6° / 43°F | 76 mm | 4 | 9° / 48°F |
| June | 36 | 14° / 57°F | 10° / 50°F | 80 mm | 5 | 14° / 57°F |
| July | 62 | 19° / 66°F | 15° / 59°F | 104 mm | 5 | 20° / 68°F |
| August | 63 | 21° / 70°F | 18° / 64°F | 131 mm | 5 | 21° / 70°F |
| September | 59 | 19° / 66°F | 16° / 61°F | 122 mm | 4 | 21° / 70°F |
| October | 28 | 13° / 55°F | 10° / 50°F | 113 mm | 2 | 16° / 61°F |
| November | 0 | 6° / 43°F | 3° / 37°F | 114 mm | 1 | 10° / 50°F |
| December | 0 | 0° / 32°F | -3° / 27°F | 119 mm | 0 | 4° / 39°F |
Sea temperature in Wakkanai by month
The sea off Wakkanai is warmest in August at around 21°C / 70°F, and coolest in February at 1°C / 34°F. The water sits at a comfortable 21°C or warmer roughly 2 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Wakkanai: questions and answers
What kind of destination is Wakkanai?
Wakkanai is a seaside town in Japan with a continental climate — the sea reaches 21°C at its warmest and is swimmable (21°C+) about 2 months a year.
How many hours of sunshine does Wakkanai get a year?
Wakkanai gets about 1,513 hours of sunshine a year, at its best around August.
When is the best time to visit Wakkanai?
The sunniest time to visit Wakkanai is August, when the Sunshine Score peaks at 63/100 (with July and September close behind). Expect daytime highs around 21°C / 70°F.
What is the least sunny month in Wakkanai?
January is the least sunny month in Wakkanai, scoring 0/100 with about 89 mm of rain.
What is the sea temperature in Wakkanai?
The sea in Wakkanai ranges from about 1°C (February) to 21°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Wakkanai?
The typical midday UV index in Wakkanai peaks around 5 (moderate) in June, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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