Sendai in August

6.4out of 10

Possible, with caveats

Warm and comfortable: highs around 30°C. Very wet: about 16 rainy days.

30°CAvg high
26°CAvg low
16Rainy days (166 mm)
13:10 hDaylight
05:48Sunrise · 18:58 Sunset

Why this score

  • Warm and comfortable: highs around 30°C
  • Very wet: about 16 rainy days
  • Rain varies a lot between years (±4.1 days)

What to wear and pack

  • T-shirts and light layers
  • Shorts or a light skirt
  • Rain jacket or compact umbrella
  • Sunscreen, sunglasses and a hat

How reliable is the forecast?

Rain in August varies a lot between years (±4.1 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

11° 8° J 12° 8° F 15° 10° M 18° 14° A 22° 18° M 25° 22° J 29° 25° J 30° 26° A 28° 24° S 24° 20° O 19° 15° N 14° 10° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 11°C8°C101 mm 13– – 5.6
February 12°C8°C114 mm 12– – 5.8
March 15°C10°C161 mm 14– – 5.7
April 18°C14°C187 mm 12– – 6.5
May 22°C18°C201 mm 11– – 7.0
June 25°C22°C506 mm 19– – 6.1
July 29°C25°C320 mm 18– – 6.1
August 30°C26°C166 mm 16– – 6.4
September 28°C24°C198 mm 13– – 6.8
October 24°C20°C110 mm 9– – 7.8
November 19°C15°C121 mm 9– – 7.1
December 14°C10°C101 mm 11– – 6.2

Frequently asked questions

How hot is Sendai in August?

Daytime highs average 30°C and nights about 26°C.

When is the best time to visit Sendai?

The best months are October.