December weather forecastOkitsu, Japan

December

Weather in December

December, the first month of the winter in Okitsu, is still a refreshing month, with an average temperature ranging between min 9.8°C (49.6°F) and max 13.5°C (56.3°F).

Temperature

The onset of December entails a subtle temperature shift, as the average high-temperature eases from an enjoyable 17.6°C (63.7°F) in November to a moderate 13.5°C (56.3°F). The nights of December in Okitsu cool down to an average low of 9.8°C (49.6°F), subtly lower than daytime highs.

Humidity

The average relative humidity in December is 66%.

Rainfall

In December, in Okitsu, the rain falls for 12.1 days. Throughout December, 68mm (2.68") of precipitation is accumulated. Throughout the year, in Okitsu, there are 178.9 rainfall days, and 1201mm (47.28") of precipitation is accumulated.

Snowfall

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

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of December in Okitsu, sunrise is at 06:28 and sunset at 16:27. On the last day of the month, sunrise is at 06:47 and sunset at 16:37 JST.

Sunshine

In Okitsu, the average sunshine in December is 5.7h.

UV index

In December, the average daily maximum UV index in Okitsu, Japan, is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 4 in December interprets into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. To guard against the harmful effects of the Sun, minimize exposure during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Frequently asked questions

During December, Okitsu experiences an average high-temperature of 13.5°C (56.3°F) and a low-temperature of 9.8°C (49.6°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, in August is appraised at 33°C (91.4°F).

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

In Okitsu, Japan, in December, during 12.1 rainfall days, 68mm (2.68") of precipitation is typically accumulated.

March through December are months without snowfall in Okitsu.

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

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

The average day length in December in Okitsu is 9h and 50min.

On the first day of December in Okitsu, sunrise is at 06:28 and sunset at 16:27. On the last day of the month, sunrise is at 06:47 and sunset at 16:37 JST.

In December, the average sunshine duration in Okitsu is 5.7h.

The average daily maximum UV index in December is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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 days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Okitsu, Japan

  • Average high temperature in December: 13.5°C

The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (10.6°C).

  • Average low temperature in December: 9.8°C

The month with the highest average low temperature is August (25.6°C).
The coldest month (with the lowest average low temperature) is January (7°C).

Average pressure in December
Okitsu, Japan

  • Average pressure in December: 1015.7mbar

The month with the highest atmospheric pressure is November (1017.6mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).

Average wind speed in December
Okitsu, Japan

  • Average wind speed in December: 24.1km/h

The windiest month (with the highest average wind speed) is March (25.5km/h).
The calmest month (with the lowest average wind speed) is June (18.7km/h).

Average humidity in December
Okitsu, Japan

  • Average humidity in December: 66%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (63%).

Average rainfall in December
Okitsu, Japan

  • Average rainfall in December: 68mm

The wettest month (with the highest rainfall) is October (164mm).
The driest month (with the least rainfall) is January (58mm).

Average rainfall days in December
Okitsu, Japan

  • Average rainfall days in December: 12.1 days

The month with the highest number of rainy days is October (18.5 days).
The month with the least rainy days is January (9.6 days).

Average snowfall days in December
Okitsu, Japan

  • Average snowfall days in December: 0 days

The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in December /
Average sunshine in December
Okitsu, 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 42min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in December
Okitsu, Japan

  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is October (10.2 days).

Average UV index in December
Okitsu, Japan

  • Average UV index in December: 4

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January and February (UV index 3).

Average cloud cover in December
Okitsu, Japan

  • Average cloud cover in December: 37

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Okitsu, 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).