December weather forecastFuttsu, Japan

December

Weather in December

December, the first month of the winter in Futtsu, is still a cool month, with temperature in the range of an average low of 8.3°C (46.9°F) and an average high of 12.3°C (54.1°F).

Temperature

The average high-temperature shows a slight dip in December, from November's enjoyable 17°C (62.6°F) to a fresh 12.3°C (54.1°F). December nights anticipate an average temperature of 8.3°C (46.9°F), a modest decline from the daytime.

Humidity

In Futtsu, the average relative humidity in December is 66%.

Rainfall

In December, in Futtsu, the rain falls for 11.8 days. Throughout December, 61mm (2.4") of precipitation is accumulated. In Futtsu, Japan, during the entire year, the rain falls for 178.2 days and collects up to 1117mm (43.98") of precipitation.

Snowfall

April through December are months without snowfall.

Sea temperature

In Futtsu, in December, the average water temperature is 18.9°C (66°F).
Note: Most people do not find swimming enjoyable in water of 18.9°C (66°F). The task of controlling breathing becomes tougher as the temperature drops from 21°C (69.8°F) to 15°C (59°F).

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 06:30 and sunset at 16:28. On the last day of December, in Futtsu, Japan, sunrise is at 06:49 and sunset at 16:38 JST.

Sunshine

In Futtsu, the average sunshine in December is 5.9h.

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 medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 3 in December translates into these instructions:
Heed the precautions - Suggestions to avoid sunburn are made. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Frequently asked questions

The high-temperature, in December, in Futtsu, is 12.3°C (54.1°F), while the low-temperature averages to 8.3°C (46.9°F). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is calculated to be 34°C (93.2°F).

In Futtsu, the average relative humidity in December is 66%.

In December, in Futtsu, the rain falls for 11.8 days. Throughout December, 61mm (2.4") of precipitation is accumulated.

April through December are months without snowfall in Futtsu, Japan.

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

In Futtsu, Japan, the average seawater temperature in December is 18.9°C (66°F). For swimming, a surface water temperature of 18.9°C (66°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

The month with the shortest days in Futtsu is December, with an average of 9h and 48min of daylight.

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

In December, on the first day of the month, sunrise is at 06:30 and sunset at 16:28. On the last day of the month, sunrise is at 06:49 and sunset at 16:38 JST.

In Futtsu, Japan, the average sunshine duration in December is 5.9h.

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

The average daily maximum UV index in December in Futtsu is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sea temperature
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Futtsu, Japan

  • Average high temperature in December: 12.3°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 (9.7°C).

  • Average low temperature in December: 8.3°C

The month with the highest average low temperature is August (25.1°C).
The coldest month (with the lowest average low temperature) is January (5.3°C).

Average pressure in December
Futtsu, Japan

  • Average pressure in December: 1016mbar

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
Futtsu, Japan

  • Average wind speed in December: 19.3km/h

The windiest month (with the highest average wind speed) is March (20.9km/h).
The calmest month (with the lowest average wind speed) is June (15.7km/h).

Average humidity in December
Futtsu, Japan

  • Average humidity in December: 66%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is January (63%).

Average rainfall in December
Futtsu, Japan

  • Average rainfall in December: 61mm

The wettest month (with the highest rainfall) is October (156mm).
The driest month (with the least rainfall) is August (55mm).

Average rainfall days in December
Futtsu, Japan

  • Average rainfall days in December: 11.8 days

The month with the highest number of rainy days is October (18.8 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in December
Futtsu, Japan

  • Average snowfall in December: 0mm

The month with the highest snowfall is February (9mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in December
Futtsu, Japan

  • Average snowfall days in December: 0 days

The months with the highest number of snowfall days are January and February (1.4 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
Futtsu, 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
Futtsu, 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: 5h and 54min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).

Average sunshine days in December
Futtsu, Japan

  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is October (8.8 days).

Average UV index in December
Futtsu, 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
Futtsu, Japan

  • Average cloud cover in December: 34

The months with the most cloud cover are March and October (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in December
Futtsu, 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).