Matsuyama weather by month & the best time to visit
Japan · coastal city break · humid subtropical climate
The best time to visit Matsuyama is October — its sunniest month (Sunshine Score 68/100), with August and May close behind. Matsuyama averages about 1,883 hours of sunshine a year. Daytime highs around 23°C / 73°F and roughly 119 mm of rain in October.
When is the best time to visit Matsuyama?
For sunshine, the best time to visit Matsuyama is October, then August and May. The dullest month is January (7/100, 56 mm of rain). The full month-by-month picture is in the table below.
How sunny is Matsuyama?
Matsuyama gets a moderate 1,883 hours of sunshine a year. 61 Sunshine Score points separate October (68) from January (7), so the month you pick matters. It ranks #15 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 June, carries about 41% of the annual 1,621 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 7 | 9° / 48°F | 4° / 39°F | 56 mm | 2 | 14° / 57°F |
| February | 19 | 11° / 52°F | 5° / 41°F | 76 mm | 3 | 12° / 54°F |
| March | 35 | 14° / 57°F | 7° / 45°F | 109 mm | 4 | 13° / 55°F |
| April | 55 | 18° / 64°F | 11° / 52°F | 128 mm | 6 | 16° / 61°F |
| May | 62 | 22° / 72°F | 15° / 59°F | 153 mm | 6 | 18° / 64°F |
| June | 62 | 25° / 77°F | 20° / 68°F | 242 mm | 6 | 22° / 72°F |
| July | 62 | 28° / 82°F | 24° / 75°F | 268 mm | 7 | 27° / 81°F |
| August | 64 | 30° / 86°F | 25° / 77°F | 138 mm | 8 | 30° / 86°F |
| September | 62 | 27° / 81°F | 22° / 72°F | 181 mm | 6 | 29° / 84°F |
| October | 68 | 23° / 73°F | 17° / 63°F | 119 mm | 5 | 24° / 75°F |
| November | 57 | 17° / 63°F | 12° / 54°F | 77 mm | 3 | 21° / 70°F |
| December | 25 | 12° / 54°F | 7° / 45°F | 74 mm | 2 | 16° / 61°F |
Sea temperature in Matsuyama by month
The sea off Matsuyama is warmest in August at around 30°C / 86°F, and coolest in February at 12°C / 54°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.
Nearest destinations
Head-to-head
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Matsuyama: questions and answers
What kind of destination is Matsuyama?
Matsuyama is a coastal city break in Japan with a humid subtropical climate — the sea reaches 30°C at its warmest and is swimmable (21°C+) about 6 months a year.
How many hours of sunshine does Matsuyama get a year?
Matsuyama gets about 1,883 hours of sunshine a year, at its best around October.
When is the best time to visit Matsuyama?
The sunniest time to visit Matsuyama is October, when the Sunshine Score peaks at 68/100 (with August and May close behind). Expect daytime highs around 23°C / 73°F.
What is the least sunny month in Matsuyama?
January is the least sunny month in Matsuyama, scoring 7/100 with about 56 mm of rain.
What is the sea temperature in Matsuyama?
The sea in Matsuyama ranges from about 12°C (February) to 30°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Matsuyama?
The typical midday UV index in Matsuyama peaks around 8 (very high) in August, 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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