Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
The onset of December introduces a moderate change in Rui'an's weather, with average high-temperatures falling from November's comfortable 18.8°C (65.8°F) to a still refreshing 13.5°C (56.3°F). In Rui'an, the nighttime temperature averages to a frosty 7.9°C (46.2°F) during December.Humidity
The least humid month is December, with an average relative humidity of 75%.Rainfall
In December, in Rui'an, the rain falls for 10.6 days. Throughout December, 19mm (0.75") of precipitation is accumulated. Throughout the year, there are 173.8 rainfall days, and 587mm (23.11") of precipitation is accumulated.Snowfall
In Rui'an, snow does not fall in February through December.Daylight
The month with the shortest days in Rui'an is December, with an average of 10h and 24min of daylight.On the first day of December, sunrise is at 06:31 and sunset at 17:01. On the last day of the month, sunrise is at 06:47 and sunset at 17:12 CST.
Sunshine
In December, the average sunshine is 5.1h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, a daily UV index of 3 turns into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the least humid month?
What is the average humidity in December?
How many days does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Rui'an, China
- Average high temperature in December: 13.5°C
The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (11.6°C).
- Average low temperature in December: 7.9°C
The month with the highest average low temperature is July (24.6°C).
The coldest month (with the lowest average low temperature) is January (6.4°C).
Average pressure in December
Rui'an, China
- Average pressure in December: 1024.5mbar
The month with the highest atmospheric pressure is January (1025.1mbar).
The months with the lowest atmospheric pressure are July and August (1006.2mbar).
Average wind speed in December
Rui'an, China
- Average wind speed in December: 10.1km/h
The windiest month (with the highest average wind speed) is October (10.6km/h).
The calmest month (with the lowest average wind speed) is May (7.1km/h).
Average humidity in December
Rui'an, China
- Average humidity in December: 75%
The month with the highest relative humidity is June (88%).
The month with the lowest relative humidity is December (75%).
Average rainfall in December
Rui'an, China
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is June (110mm).
The driest months (with the least rainfall) are January and February (18mm).
Average rainfall days in December
Rui'an, China
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is August (19.5 days).
The month with the least rainy days is January (10.5 days).
Average snowfall in December
Rui'an, China
- Average snowfall in December: 0mm
The month with the highest snowfall is January (1mm).
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Rui'an, China
- Average snowfall days in December: 0.1 days
The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Rui'an, China
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The months with the least sunshine are February and November (Average sunshine: 4h and 36min).
Average sunshine days in December
Rui'an, China
- Average sunshine days in December: 18 days
The month with the most sunshine days is December (18 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in December
Rui'an, China
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Rui'an, China
- Average cloud cover in December: 42
The month with the most cloud cover is June (Cloud cover 61).
The months with the least cloud cover are July, August and October (Cloud cover 40).
Average visibility in December
Rui'an, China
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, August, September, October, November and December (9km).
The month with the lowest visibility is June (7km).
