Sendai weather by month & the best time to visit
🇯🇵 Japan · major coastal city · humid subtropical climate
The best time to visit Sendai is May — its sunniest month (Sunshine Score 72/100), with June and September close behind. Sendai averages about 1,521 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 86 mm of rain in May.
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- Sun hours / year
- 1,521
- Sunniest month
- May
- Peak score
- 72/100
- Rain / year
- 1,361 mm
- Snow / year
- ≈90 cm
- Midday UV at peak
- 6 (high)
- Sea at warmest
- 27°C / 81°F
- Population
- 2.3M
- Elevation
- Sea level

When is the best time to visit Sendai?
For sunshine, the best time to visit Sendai is May, then June and September. The dullest month is January (0/100, 97 mm of rain). The full month-by-month picture is in the table below.
How sunny is Sendai?
Sendai isn't a sunny place by world standards: about 1,521 hours of sunshine a year. 72 Sunshine Score points separate May (72) from January (0), so the month you pick matters. It ranks #68 of 79 destinations in Japan for annual sunshine, below the national median of 1,773 hours. The year's 1,361 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° / 37°F | -4° / 25°F | 97 mm | 1 | 10° / 50°F |
| February | 0 | 4° / 39°F | -3° / 27°F | 62 mm | 2 | 12° / 54°F |
| March | 6 | 9° / 48°F | 0° / 32°F | 82 mm | 3 | 11° / 52°F |
| April | 48 | 16° / 61°F | 5° / 41°F | 84 mm | 4 | 14° / 57°F |
| May | 72 | 21° / 70°F | 11° / 52°F | 86 mm | 5 | 17° / 63°F |
| June | 67 | 25° / 77°F | 16° / 61°F | 113 mm | 5 | 20° / 68°F |
| July | 60 | 29° / 84°F | 20° / 68°F | 202 mm | 5 | 24° / 75°F |
| August | 60 | 30° / 86°F | 21° / 70°F | 149 mm | 6 | 27° / 81°F |
| September | 62 | 26° / 79°F | 17° / 63°F | 138 mm | 5 | 25° / 77°F |
| October | 61 | 20° / 68°F | 11° / 52°F | 143 mm | 3 | 22° / 72°F |
| November | 29 | 13° / 55°F | 4° / 39°F | 94 mm | 2 | 18° / 64°F |
| December | 0 | 6° / 43°F | -1° / 30°F | 111 mm | 1 | 15° / 59°F |
Sea temperature in Sendai by month
The sea off Sendai is warmest in August at around 27°C / 81°F, and coolest in January at 10°C / 50°F. The water sits at a comfortable 21°C or warmer roughly 4 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
See Sendai on the interactive sunshine globe →
Nearby places for sunshine
- Yamagata Japan · 56 km · best in May · 1,521 h sun/yr
- Shonai Japan · 124 km · best in Jun · 1,396 h sun/yr
- Hanamaki Japan · 145 km · best in May · 1,695 h sun/yr
- Niigata Japan · 159 km · best in May · 1,480 h sun/yr
- Akita Japan · 175 km · best in Jun · 1,394 h sun/yr
- Ibaraki Japan · 222 km · best in May · 1,948 h sun/yr
Nearest destinations
- Fukushima Japan · 110 km · 1,749 h sun/yr · best in May
Head-to-head
How Sendai compares month by month: Sendai vs Niigata · Sendai vs Ibaraki · Sendai vs Yamagata · Sendai vs Hanamaki · all comparisons
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