Weather in 日本 in 8月
Country-wide climate normals across 64 cities in 日本.
How Hot Is 日本 in 8月?
日本 bakes evenly in August — highs around 31°C are typical from Hakodate all the way to Higashiosaka, with very little regional variation. Lows sit around 24°C even overnight, and the country's small geographic footprint means there are no significant climate pockets. Expect uniform heat day and night.
Sunshine in 日本 in 8月
日本's August brings mixed skies — Tokyo averages 3.1h of sun, with similar conditions nationwide. Cloudy periods alternate with sunny stretches, and the sun is up between 5:00 am and 6:30 pm. Plan for variability rather than guaranteed sunshine.
Does It Rain In 日本 In 8月?
Heavy seasonal rains saturate 日本 in August — Tokyo averages 218mm of rain across 15 days, with downpours an almost daily feature. The pattern is consistent across most regions, particularly along monsoon-affected coasts. Expect torrential afternoon storms followed by humid heat.
Is 日本 Humid In 8月?
Mugginess defines 日本's August: humidity averages 75% in Tokyo, and the air feels noticeably heavy across most regions. Sweat sits on the skin longer than it would in drier conditions, and overnight relief is limited. Pack light, breathable fabrics.
Wind In 日本 In 8月
Light breezes are typical across 日本 in August: 16 kph in Tokyo, with similar gentle wind conditions in most regions. The air moves enough to keep things fresh on warm days but not enough to be disruptive. Coastal cities may see slightly more.
Cloud Cover In 日本 In 8月
Cloudy skies dominate 日本 in August — 66% cover in Tokyo, with similar overcast conditions in most regions. Direct sun is patchy and broken; expect grey stretches between brief bright moments. Coastal areas may be heavier than inland.