Spring (March–May): Average 52–67°F, mild climate but with relatively heavy rainfall, especially in April. Common activities: flower viewing, outdoor excursions (be mindful of changing weather). Recommended attire: light jacket, comfortable trousers or skirt, and rain gear.
Summer (June–August): Average 73–84°F, hot and humid, with relatively heavy rainfall from June to August. Common activities: swimming at the beach, indoor activities. Recommended attire: light and breathable clothing, sun hat, and sunscreen.
Autumn (September–November): Average 67–59°F, comfortable and pleasant climate, but occasional rainfall. Common activities: maple leaf viewing, outdoor excursions. Recommended attire: light jacket or cardigan, trousers or skirt.
Winter (December–February): Average 49–45°F, cold and dry, with low rainfall. Common activities: indoor sightseeing, onsen (hot springs). Recommended attire: warm coat, scarf, hat, and gloves.
Haneda climatological average
Annual average temperature: approx. 64.0°F / Annual rainfall: approx. 1636 mm / Summer humidity: 70%–80% / Rainiest month: June
Haneda monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
44.4°F
30.9
February
45.7°F
61.9
March
52.7°F
149
April
61.5°F
161
May
67.3°F
186.5
June
73.8°F
243.6
July
82.8°F
140
August
84°F
206.2
September
79.3°F
188.4
October
67.8°F
148.2
November
59.7°F
91.4
December
49.3°F
29.3
Haneda weather for the next seven days
10/15
Wednesday
Moderate rain
71.1°F/63°F
10/16
Thursday
Patchy rain nearby
72.2°F/66.2°F
10/17
Friday
Sunny
72.6°F/67.6°F
10/18
Saturday
Patchy rain nearby
74.5°F/67.5°F
10/19
Sunday
Patchy rain nearby
75.5°F/68.3°F
10/20
Monday
Moderate rain
61.9°F/59.7°F
10/21
Tuesday
Patchy rain nearby
61°F/58.3°F
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