December weather forecastHangzhou, China
December
Weather in December
In December, Hangzhou plunges into the heart of the frigid winter season. Temperatures oscillate from 3.7°C (38.7°F) to 11.3°C (52.3°F), relatively colder while the recorded rainfall sits at 49mm (1.93"), marking it as the driest month. A thick layer of frost often covers the city under winter’s icy spell. Light-proof layers become necessitous as the city gears for the festive end-of-year celebrations amidst the silver-themed winter escape.Temperature
Hangzhou's transition into December involves a shift in temperature, receding from an enjoyable 17.3°C (63.1°F) in November to a cool 11.3°C (52.3°F). An average low-temperature of 3.7°C (38.7°F) is noted during the nights in December in Hangzhou.Humidity
December is the least humid month, with an average relative humidity of 73%.Rainfall
December is the month with the least rainfall in Hangzhou. Rain falls for 8.5 days and accumulates 49mm (1.93") of precipitation.Sea temperature
In Hangzhou, in December, the average water temperature is 13.5°C (56.3°F).Note: Swimming in 13.5°C (56.3°F) at temperatures under 10°C (50°F) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 13°C (55.4°F) feels frosty.
Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year in Hangzhou.On the first day of December, sunrise is at 06:38 and sunset at 16:58. On the last day of the month, sunrise is at 06:55 and sunset at 17:09 CST.
Sunshine
In December, the average sunshine in Hangzhou is 4.2h.UV index
January and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 4 translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Hangzhou, China
- Average high temperature in December: 11.3°C
The warmest month (with the highest average high temperature) is July (33.6°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in December: 3.7°C
The month with the highest average low temperature is July (25.2°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average humidity in December
Hangzhou, China
- Average humidity in December: 73%
The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is December (73%).
Average rainfall in December
Hangzhou, China
- Average rainfall in December: 48.9mm
The wettest month (with the highest rainfall) is June (219.4mm).
The driest month (with the least rainfall) is December (48.9mm).
Average rainfall days in December
Hangzhou, China
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is December (8.5 days).
Average sea temperature in December
Hangzhou, China
- Average sea temperature in December: 13.5°C
The best month for swimming (with the highest average sea temperature) is August (26.9°C).
The coldest month (with the lowest average sea temperature) is February (8.8°C).
Average daylight in December /
Average sunshine in December
Hangzhou, China
- Average daylight in December: 10h and 12min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 4h and 12min
The month with the most sunshine is July (Average sunshine: 6h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average UV index in December
Hangzhou, China
- Average UV index in December: 4
The months with the highest UV index are June, July and August (UV index 11).
The months with the lowest UV index are January and December (UV index 4).





