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 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
Weather in December
Temperature
As Yokosuka enters December, the average high-temperature subtly lowers from the a comfortable 17.1°C (62.8°F) of November to a cool 12.5°C (54.5°F). Yokosuka welcomes an average low temperature of 8.4°C (47.1°F) in December, a gentle shift from the day's high.Humidity
In December, the average relative humidity in Yokosuka is 64%.Rainfall
February and December are months with the least rain in Yokosuka when the rain falls for 8.7 days and typically aggregates up to 39mm (1.54") of rain.Snowfall
April through December are months without snowfall.Sea temperature
In December, the average sea temperature in Yokosuka is 18.9°C (66°F).Note: The majority of individuals find swimming in 18.9°C (66°F) to be unenjoyable. The difficulty in controlling breathing rises as the temperature decreases 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 48min of daylight.On the first day of the month, sunrise is at 06:31 and sunset at 16:29. On the last day of December, sunrise is at 06:49 and sunset at 16:38 JST.
Sunshine
In December, the average sunshine is 6.1h.UV index
The months with the lowest UV index in Yokosuka are January, February and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 3 in December interprets into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What are December temperatures in Yokosuka?
What is the average humidity in December in Yokosuka?
What is the driest month in Yokosuka?
How much does it rain in Yokosuka in December?
When it does not snow in Yokosuka?
Does it snow in Yokosuka in December?
What is the sea temperature in December in Yokosuka?
What is the month with the shortest days in Yokosuka?
How many hours of daylight does Yokosuka have in December?
When is the sunrise / sunset in December in Yokosuka?
How long on average sun shines in December in Yokosuka?
When is the lowest UV index in Yokosuka?
What is the UV index reading in December in Yokosuka?
Average temperature in December
Yokosuka, Japan
- Average high temperature in December: 12.5°C
The warmest month (with the highest average high temperature) is August (28.8°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in December: 8.4°C
The month with the highest average low temperature is August (25.3°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).
Average pressure in December
Yokosuka, Japan
- Average pressure in December: 1016.2mbar
The month with the highest atmospheric pressure is November (1017.9mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).
Average wind speed in December
Yokosuka, Japan
- Average wind speed in December: 19.1km/h
The windiest month (with the highest average wind speed) is March (20.8km/h).
The calmest month (with the lowest average wind speed) is June (15.9km/h).
Average humidity in December
Yokosuka, Japan
- Average humidity in December: 64%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is January (61%).
Average rainfall in December
Yokosuka, Japan
- Average rainfall in December: 39mm
The wettest month (with the highest rainfall) is October (119mm).
The driest months (with the least rainfall) are February and December (39mm).
Average rainfall days in December
Yokosuka, Japan
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in December
Yokosuka, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Yokosuka, Japan
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in December
Yokosuka, Japan
- Average sea temperature in December: 18.9°C
The best month for swimming (with the highest average sea temperature) is August (26.2°C).
The coldest months (with the lowest average sea temperature) are February and March (16.2°C).
Average daylight in December /
Average sunshine in December
Yokosuka, Japan
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).
Average sunshine days in December
Yokosuka, Japan
- Average sunshine days in December: 21.3 days
The month with the most sunshine days is January (23.2 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in December
Yokosuka, Japan
- Average UV index in December: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in December
Yokosuka, Japan
- Average cloud cover in December: 31
The months with the most cloud cover are March, June and October (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Yokosuka, 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).
Yokosuka, Japan
Weather forecast for your location
2. Allow the app to use your location
