January weather forecast
Arakaki, Japan

January

Weather in January

January, like December, in Arakaki, Japan, is another comfortable winter month, with an average temperature ranging between min 17°C (62.6°F) and max 18.9°C (66°F).

Temperature

The month of January sees the lowest average temperatures, reaching 18.9°C (66°F) at the peak and 17°C (62.6°F) at the low.

Humidity

January is the least humid month, with an average relative humidity of 72%.

Rainfall

In Arakaki, during January, the rain falls for 21.2 days and regularly aggregates up to 62mm (2.44") of precipitation. Throughout the year, there are 226.7 rainfall days, and 1392mm (54.8") of precipitation is accumulated.

Daylight

In Arakaki, the average length of the day in January is 10h and 42min.
On the first day of the month, sunrise is at 07:16 and sunset at 17:47. On the last day of January, in Arakaki, sunrise is at 07:14 and sunset at 18:10 JST.

Sunshine

With an average of 4.3h of sunshine, January has the least sunshine of the year in Arakaki.

UV index

The average daily maximum UV index in January is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily high UV index of 5 during January translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

What month is the coldest in Arakaki?
January stands out as Arakaki's coldest month, with temperatures ranging between an average high of 18.9°C (66°F) and a low of 17°C (62.6°F).
What are the temperatures in Arakaki in January?
During January, Arakaki experiences an average high-temperature of 18.9°C (66°F) and a low-temperature of 17°C (62.6°F).
What is the least humid month in Arakaki?
With an average relative humidity of 72%, January is the least humid month in Arakaki, Japan.
What is the average humidity in January in Arakaki?
In Arakaki, Japan, the average relative humidity in January is 72%.
How many days does it rain in January in Arakaki?
In Arakaki, Japan, during January, the rain falls for 21.2 days and regularly aggregates up to 62mm (2.44") of precipitation.
What is the average length of the day in January in Arakaki?
In Arakaki, Japan, the average day length in January is 10h and 42min.
When are sunrise and sunset in January in Arakaki?
In January, on the first day of the month, sunrise is at 07:16 and sunset at 17:47. On the last day of the month, in Arakaki, Japan, sunrise is at 07:14 and sunset at 18:10 JST.
What is the month with the least sunshine in Arakaki?
The month with the least sunshine in Arakaki, Japan, is January, with an average of 4.3h of sunshine.
How many hours of sunshine does Arakaki have in January?
In January, the average sunshine duration is 4.3h.
What is the UV index reading in January in Arakaki?
The average daily maximum UV index in January is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January
Arakaki, Japan
  • Average high temperature in January: 18.9°C

The warmest month (with the highest average high temperature) is August (29.4°C).
The month with the lowest average high temperature is January (18.9°C).

  • Average low temperature in January: 17°C

The month with the highest average low temperature is August (28.3°C).
The coldest month (with the lowest average low temperature) is January (17°C).

Average pressure in January
Arakaki, Japan
  • Average pressure in January: 1020.8mbar

The month with the highest atmospheric pressure is January (1020.8mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).

Average wind speed in January
Arakaki, Japan
  • Average wind speed in January: 27.3km/h

The windiest month (with the highest average wind speed) is December (28.4km/h).
The calmest month (with the lowest average wind speed) is May (20.1km/h).

Average humidity in January
Arakaki, Japan
  • Average humidity in January: 72%

The month with the highest relative humidity is June (86%).
The month with the lowest relative humidity is January (72%).

Average rainfall in January
Arakaki, Japan
  • Average rainfall in January: 62mm

The wettest month (with the highest rainfall) is June (201mm).
The driest month (with the least rainfall) is February (59mm).

Average rainfall days in January
Arakaki, Japan
  • Average rainfall days in January: 21.2 days

The month with the highest number of rainy days is June (21.5 days).
The month with the least rainy days is July (16.4 days).

Average daylight in January /
Average sunshine in January
Arakaki, Japan
  • Average daylight in January: 10h and 4min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in January: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in January
Arakaki, Japan
  • Average sunshine days in January: 6 days

The month with the most sunshine days is July (11.9 days).
The month with the least sunshine days is December (5.7 days).

Average UV index in January
Arakaki, Japan
  • Average UV index in January: 5

The months with the highest UV index are June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).

Average cloud cover in January
Arakaki, Japan
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in January
Arakaki, Japan
  • Average visibility in January: 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).

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