January weather forecast
Oarai, Japan

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Weather in January

January, like December, is a frosty winter month in Oarai, Japan, with an average temperature varying between 7.6°C (45.7°F) and 1.6°C (34.9°F).

Temperature

With its high average temperature of 7.6°C (45.7°F) and a low of 1.6°C (34.9°F), January is regarded as the coldest month.

Humidity

January is the least humid month in Oarai, Japan, with an average relative humidity of 62%.

Rainfall

January is the month with the least rainfall in Oarai. Rain falls for 7.8 days and accumulates 34mm (1.34") of precipitation.

Snowfall

January through March and December are months with snowfall. In Oarai, in January, snow falls for 1.6 days, with typically accumulated 17mm (0.67") of snow. Throughout the year, in Oarai, Japan, there are 5.6 snowfall days, and 52mm (2.05") of snow is accumulated.

Sea temperature

In Oarai, Japan, the average seawater temperature in January is 14°C (57.2°F).
Note: Without suitable protection, venturing into 14°C (57.2°F) waters cooler than 10°C (50°F) can lead to pronounced cold shock and rapid breaths.

Daylight

In January, the average length of the day in Oarai is 10h and 1min.
On the first day of the month, sunrise is at 06:48 and sunset at 16:32. On the last day of January, in Oarai, sunrise is at 06:40 and sunset at 17:01 JST.

Sunshine

The average sunshine in January in Oarai, Japan, is 6.4h.

UV index

The months with the lowest UV index are January and February, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 2 during January translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

What is the coldest time of year in Oarai?

January, on average, is the coldest month, registering a high temperature of 7.6°C (45.7°F) and a low of 1.6°C (34.9°F).

What is the usual temperature for Oarai in January?

The average high-temperature, in January, in Oarai, is 7.6°C (45.7°F), while the average low-temperature is 1.6°C (34.9°F).

What is the least humid month in Oarai?

The least humid month in Oarai is January, with an average relative humidity of 62%.

What is the average humidity in January in Oarai?

The average relative humidity in January in Oarai is 62%.

What is the driest month in Oarai?

January is the month with the least rainfall. Rain falls for 7.8 days and accumulates 34mm (1.34") of precipitation.

How much does it rain in Oarai in January?

In Oarai, in January, during 7.8 rainfall days, 34mm (1.34") of precipitation is typically accumulated.

How many days does it snow in January in Oarai?

In Oarai, in January, snow falls for 1.6 days, with typically accumulated 17mm (0.67") of snow.

What is the water temperature in January in Oarai?

In Oarai, in January, the average water temperature is 14°C (57.2°F). Swimming in 14°C (57.2°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Oarai have in January?

The average day length in January in Oarai is 10h and 1min.

When is the sunrise / sunset in January in Oarai?

On the first day of January in Oarai, Japan, sunrise is at 06:48 and sunset at 16:32. On the last day of the month, sunrise is at 06:40 and sunset at 17:01 JST.

How many hours of sunshine does Oarai have in January?

In January, the average sunshine duration in Oarai is 6.4h.

What are the months with the lowest UV index in Oarai?

January and February, with an average maximum UV index of 2, are months with the lowest UV index in Oarai, Japan.

How high is the UV index in January in Oarai?

In January, the average daily maximum UV index in Oarai is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover

Average temperature in January
Oarai, Japan

Average temperature in January - Oarai, Japan
  • Average high temperature in January: 7.6°C

The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (7.6°C).

  • Average low temperature in January: 1.6°C

The month with the highest average low temperature is August (23.3°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).

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Average pressure in January
Oarai, Japan

Average pressure in January - Oarai, Japan
  • Average pressure in January: 1016.1mbar

The month with the highest atmospheric pressure is November (1018.3mbar).
The month with the lowest atmospheric pressure is June (1009.3mbar).

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Average wind speed in January
Oarai, Japan

Average wind speed in January - Oarai, Japan
  • Average wind speed in January: 13.9km/h

The windiest month (with the highest average wind speed) is February (14.4km/h).
The calmest month (with the lowest average wind speed) is July (9.7km/h).

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Average humidity in January
Oarai, Japan

Average humidity in January - Oarai, Japan
  • Average humidity in January: 62%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is January (62%).

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Average rainfall in January
Oarai, Japan

Average rainfall in January - Oarai, Japan
  • Average rainfall in January: 34mm

The wettest month (with the highest rainfall) is October (121mm).
The driest month (with the least rainfall) is January (34mm).

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Average rainfall days in January
Oarai, Japan

Average rainfall days in January - Oarai, Japan
  • Average rainfall days in January: 7.8 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.8 days).

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Average snowfall in January
Oarai, Japan

Average snowfall in January - Oarai, Japan
  • Average snowfall in January: 17mm

The month with the highest snowfall is February (32mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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Average snowfall days in January
Oarai, Japan

Average snowfall days in January - Oarai, Japan
  • Average snowfall days in January: 1.6 days

The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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Average sea temperature in January
Oarai, Japan

Average sea temperature in January - Oarai, Japan
  • Average sea temperature in January: 14°C

The best month for swimming (with the highest average sea temperature) is August (23.6°C).
The coldest month (with the lowest average sea temperature) is February (11.7°C).

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Average daylight in January /
Average sunshine in January
Oarai, Japan

Average daylight in January / Average sunshine in January - Oarai, Japan
  • Average daylight in January: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in January: 6h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).

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Average sunshine days in January
Oarai, Japan

Average sunshine days in January - Oarai, Japan
  • Average sunshine days in January: 21.8 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is June (11.1 days).

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Average UV index in January
Oarai, Japan

Average UV index in January - Oarai, Japan
  • Average UV index in January: 2

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and February (UV index 2).

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Average cloud cover in January
Oarai, Japan

Average cloud cover in January - Oarai, Japan
  • Average cloud cover in January: 30

The months with the most cloud cover are June and July (Cloud cover 48).
The month with the least cloud cover is January (Cloud cover 30).

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Average visibility in January
Oarai, Japan

Average visibility in January - Oarai, Japan
  • Average visibility in January: 10km

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

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Oarai, Japan

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