Yamagata weather by month & the best time to visit
Japan · regional city · humid subtropical climate
The best time to visit Yamagata is May — its sunniest month (Sunshine Score 70/100), with June and September close behind. Yamagata averages about 1,521 hours of sunshine a year. Daytime highs around 20°C / 68°F and roughly 94 mm of rain in May.
When is the best time to visit Yamagata?
For sunshine, the best time to visit Yamagata is May, then June and September. The dullest month is January (0/100, 126 mm of rain). The full month-by-month picture is in the table below.
How sunny is Yamagata?
Yamagata isn't a sunny place by world standards: about 1,521 hours of sunshine a year. 70 Sunshine Score points separate May (70) from January (0), so the month you pick matters. It ranks #67 of 79 destinations in Japan for annual sunshine, below the national median of 1,773 hours. The year's 1,546 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 |
|---|---|---|---|---|---|
| January | 0 | 2° / 36°F | -4° / 25°F | 126 mm | 1 |
| February | 0 | 2° / 36°F | -4° / 25°F | 81 mm | 2 |
| March | 0 | 7° / 45°F | -1° / 30°F | 93 mm | 3 |
| April | 35 | 14° / 57°F | 4° / 39°F | 92 mm | 4 |
| May | 70 | 20° / 68°F | 10° / 50°F | 94 mm | 5 |
| June | 66 | 25° / 77°F | 15° / 59°F | 116 mm | 5 |
| July | 60 | 28° / 82°F | 19° / 66°F | 204 mm | 6 |
| August | 60 | 29° / 84°F | 20° / 68°F | 168 mm | 6 |
| September | 61 | 25° / 77°F | 16° / 61°F | 142 mm | 5 |
| October | 50 | 18° / 64°F | 10° / 50°F | 153 mm | 3 |
| November | 21 | 12° / 54°F | 4° / 39°F | 127 mm | 2 |
| December | 0 | 5° / 41°F | -1° / 30°F | 150 mm | 1 |
Nearest destinations
Head-to-head
How Yamagata compares month by month: Yamagata vs Sendai · Yamagata vs Niigata · Yamagata vs Hanamaki · Yamagata vs Shonai · all comparisons
Yamagata: questions and answers
What kind of destination is Yamagata?
Yamagata is a regional city in Japan with a humid subtropical climate.
How many hours of sunshine does Yamagata get a year?
Yamagata gets about 1,521 hours of sunshine a year, at its best around May.
When is the best time to visit Yamagata?
The sunniest time to visit Yamagata is May, when the Sunshine Score peaks at 70/100 (with June and September close behind). Expect daytime highs around 20°C / 68°F.
What is the least sunny month in Yamagata?
January is the least sunny month in Yamagata, scoring 0/100 with about 126 mm of rain.
How strong is the sun in Yamagata?
The typical midday UV index in Yamagata peaks around 6 (high) in July, easing to about 1 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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