December weather forecastKaikawa, Japan
December
Weather in December
December, the first month of the winter in Kaikawa, is still a cool month, with temperature in the range of an average low of 7.4°C (45.3°F) and an average high of 11.4°C (52.5°F).Temperature
The transition into December subtly indicates a reduction in the average high-temperature, down to a fresh 11.4°C (52.5°F) from November's enjoyable 16.4°C (61.5°F). Nighttime temperature in Kaikawa reflects an average dip to a chilly 7.4°C (45.3°F) in December, subtly cooler than its daytime highs.Humidity
In December, the average relative humidity in Kaikawa is 70%.Rainfall
In Kaikawa, Japan, in December, it is raining for 8.1 days, with typically 20mm (0.79") of accumulated precipitation. Throughout the year, there are 133.3 rainfall days, and 454mm (17.87") of precipitation is accumulated.Snowfall
In Kaikawa, snow does not fall in January, March through December.Daylight
With an average of 10h and 0min of daylight, December has the shortest days of the year.On the first day of December in Kaikawa, sunrise is at 06:49 and sunset at 16:54. On the last day of the month, sunrise is at 07:07 and sunset at 17:04 JST.
Sunshine
In Kaikawa, the average sunshine in December is 6.3h.UV index
The month with the lowest UV index in Kaikawa is December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. It's recommended to limit sun exposure when its radiation is at its peak during midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kaikawa, Japan
- Average high temperature in December: 11.4°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 (9.3°C).
- Average low temperature in December: 7.4°C
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is January (5.2°C).
Average pressure in December
Kaikawa, Japan
- Average pressure in December: 1019.7mbar
The month with the highest atmospheric pressure is January (1019.9mbar).
The month with the lowest atmospheric pressure is June (1008.6mbar).
Average wind speed in December
Kaikawa, Japan
- Average wind speed in December: 18.3km/h
The windiest month (with the highest average wind speed) is January (18.9km/h).
The calmest month (with the lowest average wind speed) is June (11.2km/h).
Average humidity in December
Kaikawa, Japan
- Average humidity in December: 70%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is January (68%).
Average rainfall in December
Kaikawa, Japan
- Average rainfall in December: 20mm
The wettest month (with the highest rainfall) is July (73mm).
The driest month (with the least rainfall) is November (16mm).
Average rainfall days in December
Kaikawa, Japan
- Average rainfall days in December: 8.1 days
The month with the highest number of rainy days is August (14.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
Kaikawa, Japan
- Average snowfall in December: 0mm
The month with the highest snowfall is February (3mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in December
Kaikawa, Japan
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is January (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Kaikawa, Japan
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 0min).
Average sunshine days in December
Kaikawa, Japan
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is August (12.3 days).
Average UV index in December
Kaikawa, Japan
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Kaikawa, Japan
- Average cloud cover in December: 30
The month with the most cloud cover is June (Cloud cover 42).
The months with the least cloud cover are January, August, November and December (Cloud cover 30).
Average visibility in December
Kaikawa, 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).





