Koya weather in January 2026

Expect 6°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Koya in January based on long-term weather averages. There is usually 17 days with some rainfall and 51 mm of average monthly rainfall in January.

  • 6°C maximum daytime temperature in January in Koya6
    6°C max day temperature
  • 5 hours of sunshine per day
  • 17 days with some rainfall in January in Koya17
    17 days with some rainfall
  • -1°C minimum night-time temperature in January in Koya-1
    -1°C min night temperature
  • 10 hours of daylight per day in January in Koya10
    10 hours of daylight per day
  • No heat & humidity in January in Koya0
    No heat & humidity
  • 51 mm monthly rainfall in January in Koya51
    51 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in January in Koya3
    3 (Moderate) UV index

More about Koya

Koya by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Japan

Just You: Top deals on solo adventures & tours

  • Browse top offers on solo holidays & singles escorted tours
  • Filter offers by travel style, destination, dates & price
  • Styles include walking holidays, cruises, city breaks & tours
Go to Just You deal >>

View all Just You offers

The January weather guide for Japan (Koya) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

More about Japan

How cold is it in Koya in January?

Daytime temperatures usually reach 6°C in Koya in January, falling to -1°C at night.

How sunny is it in Koya in January?

There are normally 5 hours of bright sunshine each day in Koya in January - that's 46% of daylight hours.

Does it rain in Koya in January?

There are usually 17 days with some rain in Koya in January and the average monthly rainfall is 51mm.

Koya January sunrise & sunset times

Browse the sunrise and sunset times for Koya in January 2026. Select a month to view Koya sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:04 16:59
Friday, 16th January 2026 07:03 17:12
Saturday, 31st January 2026 06:56 17:26

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^