Weather in 東京 in 12月

Climate normals based on 10 years of historical data for 東京, 日本.

Average high

12°C

Average low

5°C

Rainfall

59 mm

6 rainy days

Sunshine

4.4h/day

湿度

50%

Sea temperature

14.5°C

How Hot Is 東京 in 12月?

December is a comfortable in-between month for 東京 — warm enough by day at 12°C, crisp at night around 5°C.

東京's winter daylight is limited and the sun is patchy: 4.4h of direct sun.

Moderate showers shape December: 59mm of rain in 東京 across 6 days.

東京's December feels balanced: humidity averages 50%, neither dry nor sticky.

The water stays cold off 東京 in December — averaging around 14.5°C, brisk for most swimmers.

東京 sees consistent breezes in December: typical wind speeds of 20 kph.

Expect a mix of sunny and cloudy stretches: 49% average cloud cover in 東京.