December weather forecastTsukui, Japan

December

Weather in December

December, the first month of the winter in Tsukui, is still a cool month, with an average temperature fluctuating between 8.9°C (48°F) and 12.9°C (55.2°F).

Temperature

December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a refreshing 17.4°C (63.3°F) in November to a cool 12.9°C (55.2°F). Tsukui in December observes a slight diminution in temperature from daily highs, recording a low-temperature average of 8.9°C (48°F).

Humidity

The average relative humidity in December in Tsukui is 64%.

Rainfall

In December, the rain falls for 11.4 days. Throughout December, 47mm (1.85") of precipitation is accumulated. Throughout the year, there are 166 rainfall days, and 920mm (36.22") of precipitation is accumulated.

Snowfall

In Tsukui, snow does not fall in March through December.

Daylight

December has the shortest days of the year in Tsukui, 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, in Tsukui, sunrise is at 06:49 and sunset at 16:39 JST.

Sunshine

In December, the average sunshine in Tsukui is 6.1h.

UV index

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 3 during December translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature, in December, in Tsukui, is 12.9°C (55.2°F), while the average low-temperature is 8.9°C (48°F). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 34°C (93.2°F).

The average relative humidity in December is 64%.

In Tsukui, in December, during 11.4 rainfall days, 47mm (1.85") of precipitation is typically accumulated.

In Tsukui, Japan, snow does not fall in March through December.

In Tsukui, Japan, in December, it doesn't snow. In January, it regularly snows.

December has the shortest days of the year, with an average of 9h and 48min of daylight.

In December, the average day length in Tsukui, Japan, is 9h and 50min.

On the first day of December in Tsukui, Japan, sunrise is at 06:31 and sunset at 16:29. On the last day of the month, sunrise is at 06:49 and sunset at 16:39 JST.

The average sunshine duration in December in Tsukui is 6.1h.

January, February and December, with an average maximum UV index of 3, are months with the lowest UV index in Tsukui, Japan.

The average daily maximum UV index in December in Tsukui, Japan, is 3. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

17.4°C

12.9°C

10.1°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

20.9km/h

23.2km/h

22.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

13.5

17.5

17.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Tsukui, Japan

Average high temperature in December: 12.9°C

The warmest month (with the highest average high temperature) is August (28.6°C).
The month with the lowest average high temperature is January (10.1°C).

Average low temperature in December: 8.9°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 (6°C).

Average pressure in December
Tsukui, Japan

Average pressure in December: 1016.2mbar

The month with the highest atmospheric pressure is November (1017.8mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).

Average wind speed in December
Tsukui, Japan

Average wind speed in December: 21km/h

The windiest month (with the highest average wind speed) is March (22.4km/h).
The calmest month (with the lowest average wind speed) is June (16.9km/h).

Average humidity in December
Tsukui, 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
Tsukui, Japan

Average rainfall in December: 47mm

The wettest month (with the highest rainfall) is October (121mm).
The driest month (with the least rainfall) is February (45mm).

Average rainfall days in December
Tsukui, Japan

Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in December
Tsukui, Japan

Average snowfall in December: 0mm

The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in December
Tsukui, Japan

Average snowfall days in December: 0 days

The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).

Average daylight in December /
Average sunshine in December
Tsukui, Japan

Average daylight in December: 9h and 48min

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 6min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).

Average sunshine days in December
Tsukui, Japan

Average sunshine days in December: 17.5 days

The month with the most sunshine days is January (17.8 days).
The months with the least sunshine days are June and September (11.3 days).

Average UV index in December
Tsukui, 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
Tsukui, Japan

Average cloud cover in December: 32

The months with the most cloud cover are March and October (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Tsukui, 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).