Innoshima in August

7.7out of 10

Yes, a good time to go

Warm and comfortable: highs around 30°C. Some rain: about 8 rainy days.

30°CAvg high
26°CAvg low
8Rainy days (93 mm)
13:17 hDaylight
05:33Sunrise · 18:50 Sunset

Why this score

  • Warm and comfortable: highs around 30°C
  • Some rain: about 8 rainy days
  • Rain varies a lot between years (±4.6 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 (±4.6 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

9° 5° J 10° 5° F 13° 8° M 17° 12° A 21° 17° M 24° 21° J 28° 25° J 30° 26° A 27° 23° S 22° 17° O 17° 12° N 12° 8° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 9°C5°C65 mm 12– – 5.5
February 10°C5°C71 mm 10– – 5.8
March 13°C8°C103 mm 11– – 6.0
April 17°C12°C112 mm 10– – 6.8
May 21°C17°C127 mm 10– – 7.4
June 24°C21°C196 mm 13– – 6.8
July 28°C25°C168 mm 12– – 7.1
August 30°C26°C93 mm 8– – 7.7
September 27°C23°C155 mm 10– – 7.4
October 22°C17°C126 mm 9– – 7.7
November 17°C12°C66 mm 8– – 7.2
December 12°C8°C70 mm 11– – 6.0

Frequently asked questions

How hot is Innoshima in August?

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

When is the best time to visit Innoshima?

The best months are August, October, May, September.