Hakodate
Japan
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Hakodate, Japan

The first month of the winter, Diciembre, is still a cold month in Hakodate, Japan, with average temperature fluctuating between 3.3°C (37.9°F) and -3.5°C (25.7°F).

Temperature

In Diciembre, the average high-temperature drops, from a chilly 9.7°C (49.5°F) in Noviembre, to a cold 3.3°C (37.9°F). In Hakodate, in Diciembre, the average low-temperature is -3.5°C (25.7°F).

Humidity

In Diciembre, the average relative humidity in Hakodate is 72%.

Rainfall

In Hakodate, during Diciembre, the rain falls for 28 days and regularly aggregates up to 84.7mm (3.33") of precipitation. Throughout the year, in Hakodate, Japan, there are 250 rainfall days, and 1151.9mm (45.35") of precipitation is accumulated.

Snowfall

Enero through Abril, Noviembre and Diciembre are months with snowfall in Hakodate. In Hakodate, during Diciembre, snow falls for 23.2 days and regularly aggregates up to 860mm (33.86") of snow. In Hakodate, during the entire year, snow falls for 109.3 days, and aggregates up to 3780mm (148.82") of snow.

Sea temperature

In Diciembre, the average sea temperature is 9.8°C (49.6°F).
Note: Swimming in 9.8°C (49.6°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

The month with the shortest days in Hakodate is Diciembre, with an average of 9.2h of daylight.

Sunshine

With an average of 3h of sunshine, Diciembre has the least sunshine of the year in Hakodate, Japan.

UV index

Enero and Diciembre, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 1 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in Diciembre in Hakodate?

In Hakodate, Japan, in Diciembre, the average high-temperature is 3.3°C (37.9°F), and the average low-temperature is -3.5°C (25.7°F).

What is the average humidity in Diciembre in Hakodate?

In Hakodate, Japan, the average relative humidity in Diciembre is 72%.

How many days does it rain in Diciembre in Hakodate?

In Diciembre, in Hakodate, Japan, the rain falls for 28 days. Throughout Diciembre, 84.7mm (3.33") of precipitation is accumulated.

How much does it snow in Hakodate in Diciembre?

In Hakodate, in Diciembre, snow falls for 23.2 days, with typically accumulated 860mm (33.86") of snow.

What is the sea water temperature in Diciembre in Hakodate?

In Hakodate, the average seawater temperature in Diciembre is 9.8°C (49.6°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

What is the month with the shortest days in Hakodate?

Diciembre has the shortest days of the year, with an average of 9.2h of daylight.

How many hours of daylight does Hakodate have in Diciembre?

In Hakodate, Japan, the average length of the day in Diciembre is 9.2h.

What is the month with the least sunshine in Hakodate?

Diciembre has the least sunshine of the year in Hakodate, Japan, with an average of 3h of sunshine.

How long on average sun shines in Diciembre in Hakodate?

In Hakodate, the average sunshine in Diciembre is 3h.

What are the months with the lowest UV index in Hakodate?

Months with the lowest UV index are Enero and Diciembre, with an average maximum UV index of 1.

What is the UV index reading in Diciembre in Hakodate?

The average daily maximum UV index in Diciembre is 1. A UV Index of 2, and less, symbolizes a low health risk from the exposure to the Sun's UV radiation.
Average temperature in December - Hakodate, Japan
  • Average high temperature in December: 3.3°C

The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (0.7°C).

  • Average low temperature in December: -3.5°C

The month with the highest average low temperature is August (18.7°C).
The coldest month (with the lowest average low temperature) is January (-6.2°C).

Average humidity in December - Hakodate, Japan
  • Average humidity in December: 72%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is April (67%).

Average rainfall in December - Hakodate, Japan
  • Average rainfall in December: 84.7mm

The wettest month (with the highest rainfall) is August (153.8mm).
Driest months (with the lowest rainfall) are February and March (59.3mm).

Average rainfall days in December - Hakodate, Japan
  • Average rainfall days in December: 28 days

Months with the highest number of rainy days are January and December (28 days).
The month with the lowest number of rainy days is June (16 days).

Average snowfall in December - Hakodate, Japan
  • Average snowfall in December: 860mm

The month with the highest snowfall is January (1180mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in December - Hakodate, Japan
  • Average snowfall days in December: 23.2 days

The month with the highest number of snowfall days is January (27.8 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average sea temperature in December - Hakodate, Japan
  • Average sea temperature in December: 9.8°C

The best month for swimming (with the highest average sea temperature) is August (21.8°C).
The coldest month (with the lowest average sea temperature) is March (4.9°C).

Average daylight in December / Average sunshine in December - Hakodate, Japan
  • Average daylight in December: 9.2h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in December: 3h

The month with most sunshine is April (Average sunshine: 6.3h).
The month with least sunshine is December (Average sunshine: 3h).

Average UV index in December - Hakodate, Japan
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 9).
Months with the lowest UV index are January and December (UV index 1).