Nikko in October: weather, what to wear and what's on

Nikko weather in October

Averages for 1991–2020 at the JMA's Imaichi station (414 m above sea level).

High

18.8°C (66°F)

Low

10.1°C (50°F)

Precipitation

218.1 mm

Wet days

10.8 days

Sunshine

129 hours

Highs fall 5.4°C from September and drop another 5.1°C into November.

That is 1.9°C above Nikko's yearly average high of 16.9°C.

Of our 14 places with temperature records, Nikko is the 3rd coldest in October: 0.4°C cooler than Shirakawa-go and 0.5°C warmer than Kawaguchiko.

October is Nikko's 5th wettest month (218.1 mm).

Of our 15 places, Nikko has the 4th highest precipitation in October: 11.9 mm less than Kawaguchiko and 38.9 mm more than Naha.

Rain of 1 mm or more falls on 10.8 days, and 10 mm or more on 4.7 days.

Rain of 30 mm or more in one day falls on 1.8 days, and 50 mm or more on 1.1 days, including 0.5 days with 100 mm or more.

The sun is out for 40% or more of the possible hours on 14.3 days, and 6.7 days have under 0.1 hours of sunshine.

Up at Okunikko (1,292 m), the JMA's second station in Nikko, the average high is 13.7°C (57°F) and the low 5.7°C (42°F).

Average temperature

14.1°C (57°F)

Days of 25°C or more

1.1 days

Early, mid and late October

By the last ten days of October the average high in Nikko is 3.5°C lower than in the first ten.

By ten-day totals, 1–10 October is the wettest (86.4 mm) and 21–31 October the driest (60.3 mm).

What to wear in Nikko in October

Cool: highs around 18.8°C

• Long sleeves with a light jacket or sweater.
• An umbrella: rain falls on 10.8 days.

Okunikko and Lake Chuzenji are colder: the average high there is 13.7°C, which is our Chilly level.

Pack

• Umbrella

• Our clothing rules

Rainy season and typhoons

In an average October, 0.7 typhoons come within 300 km of the Kanto-Koshin region; across Japan, 1.7 come within 300 km and 0.3 make landfall (JMA, 1991–2020).

October records in Nikko

The extremes the JMA has measured in October at its Imaichi station.

Hottest October day

29.3°C (85°F) on 1 October 2018 (records since 1979)

Coldest October night

−1.0°C (30°F) on 31 October 1983 (records since 1979)

Wettest October day

383.5 mm on 12 October 2019 (records since 1979)

Holidays and crowds in October

National holidays in October 2026:

• Mon 12 October — Sports Day

• Sat 10 October to Mon 12 October: 3 days off in a row

In October 2025, hotels and inns across Tochigi Prefecture were 62.8% full on average (3rd busiest of 12 months). Foreign guests spent 69,000 nights there that month (Japan Tourism Agency). That compares with 56.9% in September and 63.4% in November.

• Japan in October: visitor numbers and busy travel days
• Holidays in October

What's on in Nikko in October

Nikko before and after October

• Nikko in September
• Nikko in November
• All 12 months in Nikko

Other places in October

• All 15 places in October

Related items

• Nikko by month
• Japan in October
• Nikko in September
• Nikko in November