January weather forecast
Hekinan, Japan

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Weather in January

January, like December, is another chilly winter month in Hekinan, Japan, with an average temperature varying between 2.6°C (36.7°F) and 8.3°C (46.9°F).

Temperature

The coldest period tends to be January, when average temperatures fluctuate between a high of 8.3°C (46.9°F) and a low of 2.6°C (36.7°F).

Humidity

In Hekinan, Japan, the average relative humidity in January is 70%.

Rainfall

The month with the least rainfall in Hekinan is January, when the rain falls for 9.9 days and typically collects 27mm (1.06") of precipitation.

Snowfall

Months with snowfall are January, February and December. The month with the most snowfall in Hekinan is January, when snow falls for 2.7 days and typically aggregates up to 15mm (0.59") of snow.

Sea temperature

In Hekinan, in January, the average water temperature is 15.5°C (59.9°F).
Note: Most people find swimming in 15.5°C (59.9°F) to be not enjoyable. The control of one's breathing becomes more challenging as the water temperature drops below 21°C (69.8°F).

Daylight

In January, the average length of the day is 10h and 7min.
On the first day of the month, sunrise is at 06:59 and sunset at 16:50. On the last day of January, in Hekinan, Japan, sunrise is at 06:51 and sunset at 17:18 JST.

Sunshine

In January, the average sunshine is 6.2h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Hekinan, Japan. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in January interprets into the following advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What month is the coldest in Hekinan?

Hekinan, Japan, witnesses the coldest weather in January, with temperatures averaging a high of 8.3°C (46.9°F) and a low of 2.6°C (36.7°F).

What are January temperatures in Hekinan?

An average high-temperature, in January, in Hekinan, is 8.3°C (46.9°F) and the average low-temperature is 2.6°C (36.7°F).

What is the average humidity in January in Hekinan?

The average relative humidity in January in Hekinan is 70%.

What is the driest month in Hekinan?

The month with the least rainfall in Hekinan is January, when the rain falls for 9.9 days and typically collects 27mm (1.06") of precipitation.

How many days does it rain in January in Hekinan?

In Hekinan, Japan, during January, the rain falls for 9.9 days and regularly aggregates up to 27mm (1.06") of precipitation.

When does it snow the most in Hekinan?

The month with the most snowfall in Hekinan, Japan, is January, when snow falls for 2.7 days and typically aggregates up to 15mm (0.59") of snow.

How many days does it snow in January in Hekinan?

In Hekinan, in January, during 2.7 snowfall days, 15mm (0.59") of snow is typically accumulated.

How cold is the water in January in Hekinan?

In Hekinan, in January, the average water temperature is 15.5°C (59.9°F). For most, swimming in 15.5°C (59.9°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

What is the average length of the day in January in Hekinan?

The average day length in January in Hekinan is 10h and 7min.

When is the sunrise / sunset in January in Hekinan?

In January, on the first day of the month, sunrise is at 06:59 and sunset at 16:50. On the last day of the month, in Hekinan, Japan, sunrise is at 06:51 and sunset at 17:18 JST.

How many hours of sunshine does Hekinan have in January?

In January, the average sunshine duration is 6.2h.

What is the month with the lowest UV index in Hekinan?

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Hekinan.

What is the UV index intensity in January in Hekinan?

In Hekinan, Japan, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
10.4°C 50.7°F
8.3°C 46.9°F
9.4°C 48.9°F
Average low temperature
5.4°C 41.7°F
2.6°C 36.7°F
3°C 37.4°F
Average pressure
1018.4mbar 30.07inHg
1018.6mbar 30.08inHg
1018.9mbar 30.09inHg
Average wind speed
14.1km/h 8.8mph
14.3km/h 8.9mph
14km/h 8.7mph
Average max. wind speed
15.3km/h 9.5mph
15.6km/h 9.7mph
15.3km/h 9.5mph
Average wind speed gusts
19.8km/h 12.3mph
20.2km/h 12.6mph
19.8km/h 12.3mph
Average humidity
72%
70%
69%
Average rainfall
40mm 1.57"
27mm 1.06"
38mm 1.5"
Average rainfall days
10.5
9.9
9.6
Average snowfall
5mm 0.2"
15mm 0.59"
8mm 0.31"
Average snowfall days
1.1
2.7
1.3
Average sea temperature
17.5°C 63.5°F
15.5°C 59.9°F
14.6°C 58.3°F
Average daylight
9h 5min
10h 1min
10h 5min
Average sunshine
6h 1min
6h 1min
5h 5min
Average sunshine days
17.4
16.7
16.6
Average UV index
2
2
3
Average cloud cover
32%
32%
35%
Average visibility
10km 6.2mi
10km 6.2mi
10km 6.2mi

Average temperature in January
Hekinan, Japan

Average temperature in January - Hekinan, Japan
  • Average high temperature in January: 8.3°C

The warmest month (with the highest average high temperature) is August (31.4°C).
The month with the lowest average high temperature is January (8.3°C).

  • Average low temperature in January: 2.6°C

The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is January (2.6°C).

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Average pressure in January
Hekinan, Japan

Average pressure in January - Hekinan, Japan
  • Average pressure in January: 1018.6mbar

The month with the highest atmospheric pressure is November (1019.1mbar).
The month with the lowest atmospheric pressure is June (1009mbar).

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Average wind speed in January
Hekinan, Japan

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

The windiest month (with the highest average wind speed) is January (14.3km/h).
The calmest month (with the lowest average wind speed) is July (9.1km/h).

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Average humidity in January
Hekinan, Japan

Average humidity in January - Hekinan, Japan
  • Average humidity in January: 70%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is February (69%).

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Average rainfall in January
Hekinan, Japan

Average rainfall in January - Hekinan, Japan
  • Average rainfall in January: 27mm

The wettest month (with the highest rainfall) is July (161mm).
The driest month (with the least rainfall) is January (27mm).

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Average rainfall days in January
Hekinan, Japan

Average rainfall days in January - Hekinan, Japan
  • Average rainfall days in January: 9.9 days

The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (8.6 days).

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Average snowfall in January
Hekinan, Japan

Average snowfall in January - Hekinan, Japan
  • Average snowfall in January: 15mm

The month with the highest snowfall is January (15mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).

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Average snowfall days in January
Hekinan, Japan

Average snowfall days in January - Hekinan, Japan
  • Average snowfall days in January: 2.7 days

The month with the highest number of snowfall days is January (2.7 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
Hekinan, Japan

Average sea temperature in January - Hekinan, Japan
  • Average sea temperature in January: 15.5°C

The best month for swimming (with the highest average sea temperature) is August (27.1°C).
The coldest months (with the lowest average sea temperature) are February and March (14.6°C).

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

Average daylight in January / Average sunshine in January - Hekinan, 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 54min).

  • Average sunshine in January: 6h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).

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Average sunshine days in January
Hekinan, Japan

Average sunshine days in January - Hekinan, Japan
  • Average sunshine days in January: 16.7 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is July (7.8 days).

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Average UV index in January
Hekinan, Japan

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

The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in January
Hekinan, Japan

Average cloud cover in January - Hekinan, Japan
  • Average cloud cover in January: 32

The month with the most cloud cover is July (Cloud cover 43).
The month with the least cloud cover is November (Cloud cover 31).

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Average visibility in January
Hekinan, Japan

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

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

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Hekinan, Japan

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