January weather forecast
Shiohama, Japan

January

Weather in January

January, the same as December, in Shiohama, Japan, is another chilly winter month, with an average temperature varying between 8.8°C (47.8°F) and 3°C (37.4°F).

Temperature

January is the coldest month, with an average high-temperature of 8.8°C (47.8°F) and an average low-temperature of 3°C (37.4°F).

Humidity

January is the least humid month, with an average relative humidity of 60%.

Rainfall

In January, in Shiohama, the rain falls for 4.5 days. Throughout January, 13mm (0.51") of precipitation is accumulated. In Shiohama, during the entire year, the rain falls for 125.3 days and collects up to 359mm (14.13") of precipitation.

Snowfall

January and February are months with snowfall. January is the first month it typically snows. Throughout January, in the average 0.6 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, in Shiohama, there are 2.1 snowfall days, and 5mm (0.2") of snow is accumulated.

Daylight

In January, the average length of the day is 10h and 4min.
On the first day of January, sunrise is at 06:50 and sunset at 16:37. On the last day of the month, sunrise is at 06:41 and sunset at 17:06 JST.

Sunshine

In Shiohama, the average sunshine in January is 6.5h.

UV index

The month with the lowest UV index in Shiohama is January, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 2 during January translates into the following guidance:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

What part of the year is the coldest in Shiohama?
Temperature records mark January as the coldest month, with highs averaging 8.8°C (47.8°F) and lows at 3°C (37.4°F).
What is the usual temperature for Shiohama in January?
An average high-temperature, in January, in Shiohama, is 8.8°C (47.8°F) and the average low-temperature is 3°C (37.4°F).
What is the least humid month in Shiohama?
With an average relative humidity of 60%, January is the least humid month.
What is the average humidity in January in Shiohama?
The average relative humidity in January is 60%.
How much does it rain in Shiohama in January?
In Shiohama, in January, during 4.5 rainfall days, 13mm (0.51") of precipitation is typically accumulated.
When does it start snowing in Shiohama?
January is the first month it typically snows in Shiohama. Throughout January, in the average 0.6 snowfall days, it receives 1mm (0.04") of snow.
What is the average length of the day in January in Shiohama?
In Shiohama, the average day length in January is 10h and 4min.
When is the sunrise / sunset in January in Shiohama?
On the first day of January in Shiohama, sunrise is at 06:50 and sunset at 16:37. On the last day of the month, sunrise is at 06:41 and sunset at 17:06 JST.
How long on average sun shines in January in Shiohama?
In January, the average sunshine duration is 6.5h.
When is the lowest UV index in Shiohama?
January is the month with the lowest UV index in Shiohama, with an average maximum UV index of 2.
What is the UV index intensity in January in Shiohama?
In Shiohama, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Shiohama, Japan
  • Average high temperature in January: 8.8°C

The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (8.8°C).

  • Average low temperature in January: 3°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 (3°C).

Average pressure in January
Shiohama, Japan
  • Average pressure in January: 1016.1mbar

The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.2mbar).

Average wind speed in January
Shiohama, Japan
  • Average wind speed in January: 14.3km/h

The windiest month (with the highest average wind speed) is April (15.6km/h).
The calmest month (with the lowest average wind speed) is November (12.3km/h).

Average humidity in January
Shiohama, Japan
  • Average humidity in January: 60%

The month with the highest relative humidity is July (79%).
The month with the lowest relative humidity is January (60%).

Average rainfall in January
Shiohama, Japan
  • Average rainfall in January: 13mm

The wettest month (with the highest rainfall) is September (54mm).
The driest month (with the least rainfall) is February (10mm).

Average rainfall days in January
Shiohama, Japan
  • Average rainfall days in January: 4.5 days

The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is January (4.5 days).

Average snowfall in January
Shiohama, Japan
  • Average snowfall in January: 1mm

The month with the highest snowfall is February (4mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in January
Shiohama, Japan
  • Average snowfall days in January: 0.6 days

The month with the highest number of snowfall days is February (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 January /
Average sunshine in January
Shiohama, Japan
  • Average daylight in January: 10h and 1min

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 January: 6h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).

Average sunshine days in January
Shiohama, Japan
  • Average sunshine days in January: 25.4 days

The month with the most sunshine days is January (25.4 days).
The month with the least sunshine days is June (11.5 days).

Average UV index in January
Shiohama, Japan
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in January
Shiohama, Japan
  • Average cloud cover in January: 28

The months with the most cloud cover are June and October (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 28).

Average visibility in January
Shiohama, Japan
  • Average visibility in January: 10km

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).

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