December weather forecastUwajima, Japan

December

Weather in December

December, the first month of the winter in Uwajima, is also a fresh month, with temperature in the range of an average high of 11.3°C (52.3°F) and an average low of 6.8°C (44.2°F).

Temperature

December brings a decrease in the average high-temperature, falling from November's refreshing 16.7°C (62.1°F) to a cool 11.3°C (52.3°F). An average low-temperature of 6.8°C (44.2°F), slightly less than the daytime peak, marks the month of December.

Humidity

The average relative humidity in December in Uwajima is 75%.

Rainfall

In Uwajima, in December, it is raining for 14.5 days, with typically 36mm (1.42") of accumulated precipitation. In Uwajima, during the entire year, the rain falls for 158.8 days and collects up to 720mm (28.35") of precipitation.

Snowfall

January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 1.3 snowfall days, it receives 5mm (0.2") of snow. Throughout the year, there are 6.7 snowfall days, and 25mm (0.98") of snow is accumulated.

Sea temperature

In Uwajima, Japan, the average seawater temperature in December is 20°C (68°F).
Note: In water of 20°C (68°F), the majority of people do not enjoy swimming. Breathing becomes increasingly hard to manage as the temperature drops from 21°C (69.8°F) to 15°C (59°F).

Daylight

December has the shortest days of the year, with an average of 10h and 0min of daylight.
On the first day of December in Uwajima, sunrise is at 06:55 and sunset at 17:02. On the last day of the month, sunrise is at 07:12 and sunset at 17:12 JST.

Sunshine

January and December, with an average of 5.2h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index in Uwajima are January and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.

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

Frequently asked questions

An average high-temperature, in December, in Uwajima, is 11.3°C (52.3°F) and the average low-temperature is 6.8°C (44.2°F). In August, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is appraised at 36°C (96.8°F).

In Uwajima, Japan, the average relative humidity in December is 75%.

In Uwajima, in December, during 14.5 rainfall days, 36mm (1.42") of precipitation is typically accumulated.

December is the first month it typically snows in Uwajima. Throughout December, in the average 1.3 snowfall days, it receives 5mm (0.2") of snow.

In Uwajima, the average seawater temperature in December is 20°C (68°F). For swimming, a surface water temperature of 20°C (68°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 Uwajima, Japan, is December, with an average of 10h and 0min of daylight.

In December, the average day length is 10h and 0min.

In December, on the first day of the month, sunrise is at 06:55 and sunset at 17:02. On the last day of the month, sunrise is at 07:12 and sunset at 17:12 JST.

The months with the least sunshine are January and December, with an average of 5.2h of sunshine.

The average sunshine duration in December in Uwajima is 5.2h.

The months with the lowest UV index are January and December, with an average maximum UV index of 2.

In Uwajima, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

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

Nov

December

Jan

Average high temperature

16.7°C

11.3°C

9°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

13.3km/h

17.3km/h

17.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

1.3

3.1

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

11.5

14.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Uwajima, Japan

Average high temperature in December: 11.3°C

The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (9°C).

Average low temperature in December: 6.8°C

The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (4.7°C).

Average pressure in December
Uwajima, Japan

Average pressure in December: 1020.6mbar

The month with the highest atmospheric pressure is January (1021mbar).
The month with the lowest atmospheric pressure is June (1008.4mbar).

Average wind speed in December
Uwajima, Japan

Average wind speed in December: 16.3km/h

The windiest month (with the highest average wind speed) is January (16.8km/h).
The calmest month (with the lowest average wind speed) is June (8.8km/h).

Average humidity in December
Uwajima, Japan

Average humidity in December: 75%

The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January, February and March (72%).

Average rainfall in December
Uwajima, Japan

Average rainfall in December: 36mm

The wettest month (with the highest rainfall) is July (117mm).
The driest month (with the least rainfall) is January (23mm).

Average rainfall days in December
Uwajima, Japan

Average rainfall days in December: 14.5 days

The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is February (9.8 days).

Average snowfall in December
Uwajima, Japan

Average snowfall in December: 5mm

The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in December
Uwajima, Japan

Average snowfall days in December: 1.3 days

The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature in December
Uwajima, Japan

Average sea temperature in December: 20°C

The best month for swimming (with the highest average sea temperature) is August (27.8°C).
The coldest month (with the lowest average sea temperature) is February (17°C).

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

Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

Average sunshine in December: 5h and 12min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 12min).

Average sunshine days in December
Uwajima, Japan

Average sunshine days in December: 11.5 days

The month with the most sunshine days is May (18.8 days).
The month with the least sunshine days is July (9.8 days).

Average UV index in December
Uwajima, Japan

Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in December
Uwajima, Japan

Average cloud cover in December: 41

The month with the most cloud cover is June (Cloud cover 47).
The months with the least cloud cover are August and November (Cloud cover 32).

Average visibility in December
Uwajima, Japan

Average visibility in December: 10km

The months with the highest visibility are January, February, March, August, September, October, November and December (10km).
The months with the lowest visibility are April, May, June and July (9km).