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 days in December
- Average sea temperature 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
December witnesses a gentle descent in average high-temperature, descending from November's comfortable 17.7°C (63.9°F) to a moderate 13.4°C (56.1°F). December nights witness a slight temperature decrease, averaging at a fresh 10.3°C (50.5°F).Humidity
In December, the average relative humidity is 67%.Rainfall
In Shimoda, during December, the rain falls for 10 days and regularly aggregates up to 63mm (2.48") of precipitation. Throughout the year, there are 164.7 rainfall days, and 1368mm (53.86") of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Sea temperature
In December, the average sea temperature is 18.2°C (64.8°F).Note: The majority of individuals do not enjoy swimming in water that is 18.2°C (64.8°F). Breathing control becomes more challenging as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 06:33 and sunset at 16:33. On the last day of December, in Shimoda, sunrise is at 06:51 and sunset at 16:43 JST.
Sunshine
The average sunshine in December is 6.1h.UV index
January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Shimoda. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 3 during December, leads to the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Shimoda in December?
What is the average humidity in December in Shimoda?
How many days does it rain in December in Shimoda?
When it does not snow in Shimoda?
How cold is the water in December in Shimoda?
What is the month with the shortest days in Shimoda?
What is the average length of the day in December in Shimoda?
When are sunrise and sunset in December in Shimoda?
How long on average sun shines in December in Shimoda?
What is the month with the lowest UV index in Shimoda?
What is the UV index intensity in December in Shimoda?
Average temperature in December
Shimoda, Japan
- Average high temperature in December: 13.4°C
The warmest month (with the highest average high temperature) is August (27.9°C).
The month with the lowest average high temperature is January (10.8°C).
- Average low temperature in December: 10.3°C
The month with the highest average low temperature is August (25.7°C).
The coldest month (with the lowest average low temperature) is January (7.7°C).
Average pressure in December
Shimoda, Japan
- Average pressure in December: 1016.7mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009mbar).
Average wind speed in December
Shimoda, Japan
- Average wind speed in December: 28.7km/h
The windiest month (with the highest average wind speed) is January (28.9km/h).
The calmest month (with the lowest average wind speed) is August (18km/h).
Average humidity in December
Shimoda, Japan
- Average humidity in December: 67%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (64%).
Average rainfall in December
Shimoda, Japan
- Average rainfall in December: 63mm
The wettest month (with the highest rainfall) is July (201mm).
The driest month (with the least rainfall) is January (49mm).
Average rainfall days in December
Shimoda, Japan
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is January (8.7 days).
Average snowfall days in December
Shimoda, Japan
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in December
Shimoda, Japan
- Average sea temperature in December: 18.2°C
The best month for swimming (with the highest average sea temperature) is August (26.3°C).
The coldest month (with the lowest average sea temperature) is February (15.3°C).
Average daylight in December /
Average sunshine in December
Shimoda, Japan
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in December
Shimoda, Japan
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in December
Shimoda, Japan
- Average UV index in December: 3
The months with the highest UV index are 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
Shimoda, Japan
- Average cloud cover in December: 29
The month with the most cloud cover is June (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in December
Shimoda, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
