Météo pour Japon en septembre
Normales climatiques nationales pour 64 villes de Japon.
How Hot Is Japon in septembre?
Japon's September is consistently warm — typical 27°C, with no major regional outliers.
Sunshine in Japon in septembre
Limited sunshine and short daylight define Japon's September: Tokyo averages just 2.5h of direct sun, with the sun up between 5:25 am and 5:45 pm. The grey, overcast pattern is consistent across most of the country, with little regional variation in cloud cover.
Does It Rain In Japon In septembre?
Monsoon-like conditions dominate Japon's September: Tokyo sees 242mm of rain across 15 days, similar nationwide. Heavy showers fall almost daily, often in dramatic afternoon downpours. Sunshine is brief between storms, and humidity stays high throughout the month.
Is Japon Humid In septembre?
Japon feels humid through September: 75% in Tokyo, similar nationwide. Warm days feel several degrees hotter than the thermometer suggests, and morning mist or post-rain steam is common. Drier upland or interior regions may feel a bit less oppressive.
Wind In Japon In septembre
Light breezes are typical across Japon in September: 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 Japon In septembre
Cloudy skies dominate Japon in September — 69% 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.