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 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 onset of December introduces a moderate change in Saikai's weather, with average high-temperatures falling from November's comfortable 16.9°C (62.4°F) to a cool 11.5°C (52.7°F). December nights reflect a consistent temperature dip to a frosty 7.5°C (45.5°F), a slight descent from daytime peaks.Humidity
The average relative humidity in December in Saikai, Japan, is 73%.Rainfall
In Saikai, during December, the rain falls for 16.4 days and regularly aggregates up to 53mm (2.09") of precipitation. In Saikai, Japan, during the entire year, the rain falls for 169.5 days and collects up to 913mm (35.94") of precipitation.Snowfall
January, February and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 1 snowfall days, it receives 4mm (0.16") of snow. Throughout the year, there are 5.1 snowfall days, and 14mm (0.55") of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 0min of daylight.On the first day of December in Saikai, sunrise is at 07:06 and sunset at 17:14. On the last day of the month, sunrise is at 07:23 and sunset at 17:25 JST.
Sunshine
The months with the least sunshine are January and December, with an average of 4.5h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are the temperatures in Saikai in December?
What is the average humidity in December in Saikai?
How much does it rain in Saikai in December?
When does it start snowing in Saikai?
What is the month with the shortest days in Saikai?
What is the average length of the day in December in Saikai?
What time are sunrise and sunset in December in Saikai?
What are the months with the least sunshine in Saikai?
How long on average sun shines in December in Saikai?
What is the month with the lowest UV index in Saikai?
What is the UV index reading in December in Saikai?
Average temperature in December
Saikai, Japan
- Average high temperature in December: 11.5°C
The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in December: 7.5°C
The month with the highest average low temperature is August (24.8°C).
The coldest month (with the lowest average low temperature) is January (5.4°C).
Average pressure in December
Saikai, Japan
- Average pressure in December: 1021.7mbar
The month with the highest atmospheric pressure is January (1022.2mbar).
The month with the lowest atmospheric pressure is June (1008mbar).
Average wind speed in December
Saikai, Japan
- Average wind speed in December: 16.7km/h
The windiest months (with the highest average wind speed) are January and December (16.7km/h).
The calmest month (with the lowest average wind speed) is June (10.6km/h).
Average humidity in December
Saikai, Japan
- Average humidity in December: 73%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is March (71%).
Average rainfall in December
Saikai, Japan
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is July (192mm).
The driest month (with the least rainfall) is January (38mm).
Average rainfall days in December
Saikai, Japan
- Average rainfall days in December: 16.4 days
The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is May (9.5 days).
Average snowfall in December
Saikai, Japan
- Average snowfall in December: 4mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in December
Saikai, Japan
- Average snowfall days in December: 1 days
The month with the highest number of snowfall days is January (2.6 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
Saikai, 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: 4h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 4h and 30min).
Average sunshine days in December
Saikai, Japan
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is May (20.2 days).
The months with the least sunshine days are July and December (9.5 days).
Average UV index in December
Saikai, Japan
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Saikai, Japan
- Average cloud cover in December: 51
The months with the most cloud cover are January and December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 33).
Average visibility in December
Saikai, Japan
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, September, October, November and December (10km).
The months with the lowest visibility are May, June, July and August (9km).
Saikai, Japan
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