Masuda weather by month & the best time to visit
Japan · beach resort · humid subtropical climate

The best time to visit Masuda is October — its sunniest month (Sunshine Score 67/100), with May and June close behind. Masuda averages about 1,655 hours of sunshine a year. Daytime highs around 22°C / 72°F and roughly 113 mm of rain in October.
When is the best time to visit Masuda?
For sunshine, the best time to visit Masuda is October, then May and June. The dullest month is January (0/100, 74 mm of rain). The full month-by-month picture is in the table below.
How sunny is Masuda?
Masuda isn't a sunny place by world standards: about 1,655 hours of sunshine a year. 67 Sunshine Score points separate October (67) from January (0), so the month you pick matters. It ranks #52 of 79 destinations in Japan for annual sunshine, below the national median of 1,773 hours. The year's 1,682 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 | 8° / 46°F | 1° / 34°F | 74 mm | 2 | 16° / 61°F |
| February | 6 | 9° / 48°F | 2° / 36°F | 81 mm | 3 | 14° / 57°F |
| March | 28 | 13° / 55°F | 4° / 39°F | 115 mm | 4 | 14° / 57°F |
| April | 53 | 18° / 64°F | 8° / 46°F | 131 mm | 5 | 16° / 61°F |
| May | 61 | 23° / 73°F | 13° / 55°F | 149 mm | 6 | 18° / 64°F |
| June | 61 | 27° / 81°F | 18° / 64°F | 224 mm | 6 | 22° / 72°F |
| July | 61 | 30° / 86°F | 23° / 73°F | 285 mm | 7 | 26° / 79°F |
| August | 61 | 31° / 88°F | 23° / 73°F | 146 mm | 7 | 29° / 84°F |
| September | 61 | 27° / 81°F | 19° / 66°F | 184 mm | 6 | 29° / 84°F |
| October | 67 | 22° / 72°F | 13° / 55°F | 113 mm | 5 | 24° / 75°F |
| November | 48 | 16° / 61°F | 8° / 46°F | 86 mm | 3 | 21° / 70°F |
| December | 12 | 10° / 50°F | 3° / 37°F | 94 mm | 2 | 18° / 64°F |
Sea temperature in Masuda by month
The sea off Masuda is warmest in August at around 29°C / 84°F, and coolest in February at 14°C / 57°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.
Masuda: questions and answers
What kind of destination is Masuda?
Masuda is a beach resort in Japan with a humid subtropical climate — the sea reaches 29°C at its warmest and is swimmable (21°C+) about 6 months a year.
How many hours of sunshine does Masuda get a year?
Masuda gets about 1,655 hours of sunshine a year, at its best around October.
When is the best time to visit Masuda?
The sunniest time to visit Masuda is October, when the Sunshine Score peaks at 67/100 (with May and June close behind). Expect daytime highs around 22°C / 72°F.
What is the least sunny month in Masuda?
January is the least sunny month in Masuda, scoring 0/100 with about 74 mm of rain.
What is the sea temperature in Masuda?
The sea in Masuda ranges from about 14°C (February) to 29°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Masuda?
The typical midday UV index in Masuda peaks around 7 (high) in July, easing to about 2 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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