Fukuoka weather in January

Japan · long-term averages 2001–2025 · full-year climate of Fukuoka

Average high
9 °C48 °F
Average low
1 °C34 °F
Precipitation
70 mm2.8 in
Daylight
10.2 h
Humidity
80%
Cloud amount
73%

In January, Fukuoka has an average high of 9 °C48 °F and an average low of 1 °C34 °F, with about 70 mm2.8 in of precipitation. January is the coldest month of the year and the driest.

How January compares with other months

Compared with December, January is 2.1 °C3.9 °F cooler on average and drier by 9 mm0.4 in. Compared with February, January is 1.4 °C2.4 °F cooler on average and drier by 18 mm0.7 in. Daylight lasts about 10.2 hours around the middle of the month. Average relative humidity is 80% and the average cloud amount 73%.

Is January a good time to visit Fukuoka?

January is not among the most comfortable months by our comfort score: it is cool (average high 9 °C48 °F), nights are cold (average low 1 °C34 °F) and it is fairly wet (70 mm2.8 in). The most comfortable months in Fukuoka are October.

What to wear in January

For Fukuoka in January, pack a warm coat, layers and closed shoes.

January in nearby places

January averages in nearby places
PlaceHigh °C°FLow °C°FPrecip. mmin
Fukuoka948134702.8
Saga1050338712.8
Karatsu1049542692.7
Kitakyushu949642773.0
Ōmuta1049235692.7
Sasebo1050338712.8
Ube948338763.0
Isahaya948337712.8
Kumamoto1049235692.7

Nearby places that are more than 1 °C1.8 °F warmer in January: Saga, Karatsu, Kitakyushu and Sasebo.

Other months in Fukuoka

  • January9 °C48 °F / 1 °C34 °F
  • February11 °C52 °F / 2 °C35 °F
  • March14 °C58 °F / 4 °C40 °F
  • April20 °C68 °F / 9 °C48 °F
  • May25 °C76 °F / 14 °C57 °F
  • June27 °C81 °F / 18 °C65 °F
  • July31 °C87 °F / 23 °C73 °F
  • August32 °C89 °F / 23 °C74 °F
  • September28 °C82 °F / 20 °C67 °F
  • October23 °C73 °F / 14 °C57 °F
  • November17 °C63 °F / 8 °C47 °F
  • December11 °C52 °F / 3 °C38 °F

Frequently asked questions

How warm is Fukuoka in January?

In January the average high in Fukuoka is 9 °C (48 °F) and the average low is 1 °C (34 °F).

Does it rain a lot in Fukuoka in January?

On average about 70 mm (2.8 in) of precipitation falls in January; it ranks 12th of the 12 months.

Is January the warmest month in Fukuoka?

No. The warmest month in Fukuoka is August, with an average high of 32 °C (89 °F). The coldest month is January, with an average low of 1 °C (34 °F).

How long is the day in Fukuoka in January?

In the middle of January the day in Fukuoka lasts about 10.2 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.

How humid is Fukuoka in January?

The average relative humidity in January is about 80%. This is a long-term average for the whole day.

How cloudy is Fukuoka in January?

On average about 73% of the sky is covered by cloud in January. This is the mean cloud amount from satellite data, not the number of sunny days.

About this data

All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.

The grid cell’s average elevation is 185 m, while Fukuoka lies at about 3 m. Temperatures on this page were therefore adjusted by +1.2 °C2.1 °F using the standard lapse rate of 6.5 °C per 1,000 m.