Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The average high-temperature drops in December, from November's fresh 10.5°C (50.9°F) to an icy 4.6°C (40.3°F). During December, Miyako perceives a slight decrease in temperature from daytime highs, settling at an average low of 0.2°C (32.4°F).Humidity
The least humid month is December, with an average relative humidity of 71%.Rainfall
In Miyako, in December, it is raining for 15.1 days, with typically 55mm (2.17") of accumulated precipitation. In Miyako, Japan, during the entire year, the rain falls for 158.1 days and collects up to 819mm (32.24") of precipitation.Snowfall
Months with snowfall in Miyako are January through April, November and December. In Miyako, in December, during 8.9 snowfall days, 64mm (2.52") of snow is typically accumulated. Throughout the year, there are 46.9 snowfall days, and 494mm (19.45") of snow is accumulated.Sea temperature
In Miyako, in December, the average water temperature is 11.8°C (53.2°F).Note: Swimming in 11.8°C (53.2°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 is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 06:33 and sunset at 16:08. On the last day of December, in Miyako, sunrise is at 06:52 and sunset at 16:17 JST.
Sunshine
The average sunshine in December in Miyako is 5.8h.UV index
The months with the lowest UV index in Miyako are January through March, November 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 exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
Is December cold in Miyako?
What is the least humid month in Miyako?
What is the average humidity in December in Miyako?
How many days does it rain in December in Miyako?
How many days does it snow in December in Miyako?
What is the sea water temperature in December in Miyako?
What is the month with the shortest days in Miyako?
What is the average length of the day in December in Miyako?
When are sunrise and sunset in December in Miyako?
How long on average sun shines in December in Miyako?
What is the month with the lowest UV index in Miyako?
What is the UV index intensity in December in Miyako?
Average temperature in December
Miyako, Japan
- Average high temperature in December: 4.6°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (1.4°C).
- Average low temperature in December: 0.2°C
The month with the highest average low temperature is August (19.7°C).
The coldest month (with the lowest average low temperature) is February (-3.3°C).
Average pressure in December
Miyako, Japan
- Average pressure in December: 1014.7mbar
The month with the highest atmospheric pressure is November (1017.7mbar).
The month with the lowest atmospheric pressure is July (1009.3mbar).
Average wind speed in December
Miyako, Japan
- Average wind speed in December: 17.8km/h
The windiest months (with the highest average wind speed) are January and December (17.8km/h).
The calmest month (with the lowest average wind speed) is July (9.9km/h).
Average humidity in December
Miyako, Japan
- Average humidity in December: 71%
The month with the highest relative humidity is July (89%).
The month with the lowest relative humidity is December (71%).
Average rainfall in December
Miyako, Japan
- Average rainfall in December: 55mm
The wettest month (with the highest rainfall) is October (138mm).
The driest month (with the least rainfall) is November (38mm).
Average rainfall days in December
Miyako, Japan
- Average rainfall days in December: 15.1 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (9 days).
Average snowfall in December
Miyako, Japan
- Average snowfall in December: 64mm
The month with the highest snowfall is March (153mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in December
Miyako, Japan
- Average snowfall days in December: 8.9 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in December
Miyako, Japan
- Average sea temperature in December: 11.8°C
The best month for swimming (with the highest average sea temperature) is August (22.2°C).
The coldest month (with the lowest average sea temperature) is March (6.7°C).
Average daylight in December /
Average sunshine in December
Miyako, Japan
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is May (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in December
Miyako, Japan
- Average sunshine days in December: 12.6 days
The month with the most sunshine days is May (16.9 days).
The month with the least sunshine days is February (11.6 days).
Average UV index in December
Miyako, Japan
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Miyako, Japan
- Average cloud cover in December: 38
The month with the most cloud cover is July (Cloud cover 49).
The months with the least cloud cover are October and November (Cloud cover 34).
Average visibility in December
Miyako, Japan
- Average visibility in December: 9km
The months with the highest visibility are April, October and November (10km).
The month with the lowest visibility is July (8km).
Miyako, Japan
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