January weather forecastAtami, Japan

January

Weather in January

January, like December, is a frosty winter month in Atami, Japan, with temperature in the range of an average high of 8.3°C (46.9°F) and an average low of 2.8°C (37°F).

Temperature

January brings the lowest temperatures, with an average high of 8.3°C (46.9°F) and an average low of 2.8°C (37°F).

Humidity

With an average relative humidity of 67%, January is the least humid month in Atami, Japan.

Rainfall

The month with the least rainfall is January, when the rain falls for 8.6 days and typically collects 52mm (2.05") of precipitation.

Snowfall

Months with snowfall in Atami are January and February. January is the first month it typically snows. Throughout January, in the average 0.8 snowfall days, it receives 4mm (0.16") of snow. In Atami, during the entire year, snow falls for 2.3 days and aggregates up to 32mm (1.26") of snow.

Sea temperature

In Atami, the average seawater temperature in January is 16.3°C (61.3°F).
Note: Swimming in water of 16.3°C (61.3°F) is not enjoyable for the majority of individuals. Breathing control becomes increasingly challenging as the temperature dips from 21°C (69.8°F) to 15°C (59°F).

Daylight

The average length of the day in January in Atami, Japan, is 10h and 6min.
On the first day of January in Atami, sunrise is at 06:51 and sunset at 16:42. On the last day of the month, sunrise is at 06:43 and sunset at 17:10 JST.

Sunshine

In Atami, the average sunshine in January is 6.3h.

UV index

January and February, with an average maximum UV index of 2, are months with the lowest UV index in Atami, Japan. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, a daily UV index of 2 turns into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.

Frequently asked questions

January is the month when Atami experiences its coldest temperatures, averaging a high of 8.3°C (46.9°F) and a low of 2.8°C (37°F).

The average high-temperature and low-temperature during January are 8.3°C (46.9°F) and 2.8°C (37°F) respectively.

With an average relative humidity of 67%, January is the least humid month.

The average relative humidity in January in Atami is 67%.

The month with the least rainfall is January, when the rain falls for 8.6 days and typically collects 52mm (2.05") of precipitation.

In Atami, in January, during 8.6 rainfall days, 52mm (2.05") of precipitation is typically accumulated.

January is the first month it typically snows. Throughout January, in the average 0.8 snowfall days, it receives 4mm (0.16") of snow.

In Atami, the average seawater temperature in January is 16.3°C (61.3°F). For swimming, a surface water temperature of 16.3°C (61.3°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

In January, the average day length in Atami, Japan, is 10h and 6min.

On the first day of January in Atami, sunrise is at 06:51 and sunset at 16:42. On the last day of the month, sunrise is at 06:43 and sunset at 17:10 JST.

The average sunshine duration in January in Atami is 6.3h.

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

The average daily maximum UV index in January in Atami is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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 sea temperature
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Atami, Japan

  • Average high temperature in January: 8.3°C

The warmest month (with the highest average high temperature) is August (28.5°C).
The month with the lowest average high temperature is January (8.3°C).

  • Average low temperature in January: 2.8°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 (2.8°C).

Average pressure in January
Atami, Japan

  • Average pressure in January: 1016.5mbar

The month with the highest atmospheric pressure is November (1018.1mbar).
The month with the lowest atmospheric pressure is June (1009.1mbar).

Average wind speed in January
Atami, Japan

  • Average wind speed in January: 13.8km/h

The windiest month (with the highest average wind speed) is March (15.2km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).

Average humidity in January
Atami, Japan

  • Average humidity in January: 67%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is January (67%).

Average rainfall in January
Atami, Japan

  • Average rainfall in January: 52mm

The wettest month (with the highest rainfall) is July (165mm).
The driest month (with the least rainfall) is January (52mm).

Average rainfall days in January
Atami, Japan

  • Average rainfall days in January: 8.6 days

The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in January
Atami, Japan

  • Average snowfall in January: 4mm

The month with the highest snowfall is February (28mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in January
Atami, Japan

  • Average snowfall days in January: 0.8 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 sea temperature in January
Atami, Japan

  • Average sea temperature in January: 16.3°C

The best month for swimming (with the highest average sea temperature) is August (26.2°C).
The coldest month (with the lowest average sea temperature) is February (15.3°C).

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

  • Average daylight in January: 10h and 6min

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 18min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).

Average sunshine days in January
Atami, Japan

  • Average sunshine days in January: 19.9 days

The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is July (8.5 days).

Average UV index in January
Atami, Japan

  • Average UV index in January: 2

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

Average cloud cover in January
Atami, Japan

  • Average cloud cover in January: 29

The month with the most cloud cover is June (Cloud cover 48).
The month with the least cloud cover is January (Cloud cover 29).

Average visibility in January
Atami, Japan

  • Average visibility in January: 10km

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