Oshima in August

7.2out of 10

Possible, with caveats

Warm and comfortable: highs around 28°C. Frequent rain: about 12 rainy days.

28°CAvg high
25°CAvg low
12Rainy days (148 mm)
13:25 hDaylight
05:14Sunrise · 18:40 Sunset

Why this score

  • Warm and comfortable: highs around 28°C
  • Frequent rain: about 12 rainy days
  • Rain varies a lot between years (±4.0 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 (±4.0 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

6° 3° J 7° 3° F 9° 5° M 14° 10° A 18° 14° M 22° 19° J 26° 23° J 28° 25° A 25° 22° S 20° 16° O 14° 11° N 9° 6° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 6°C3°C196 mm 24– – 3.6
February 7°C3°C135 mm 19– – 3.9
March 9°C5°C132 mm 16– – 4.7
April 14°C10°C117 mm 12– – 6.0
May 18°C14°C117 mm 10– – 7.0
June 22°C19°C153 mm 11– – 7.3
July 26°C23°C220 mm 14– – 6.6
August 28°C25°C148 mm 12– – 7.2
September 25°C22°C189 mm 14– – 6.8
October 20°C16°C151 mm 13– – 6.7
November 14°C11°C171 mm 17– – 5.1
December 9°C6°C224 mm 23– – 4.1

Frequently asked questions

How hot is Oshima in August?

Daytime highs average 28°C and nights about 25°C.

When is the best time to visit Oshima?

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