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

Nikko weather in June

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

High

23.2°C (74°F)

Low

15.0°C (59°F)

Precipitation

225.0 mm

Wet days

15.7 days

Sunshine

115 hours

Highs rise 2.5°C from May and climb another 3.5°C into July.

That is 6.3°C above Nikko's yearly average high of 16.9°C.

Of our 14 places with temperature records, Nikko is the 3rd coldest in June: 1.7°C cooler than Shirakawa-go and 0.2°C warmer than Kawaguchiko.

June is Nikko's 4th wettest month (225.0 mm).

Of our 15 places, Nikko has the 5th highest precipitation in June: 1.5 mm less than Hiroshima and 25.3 mm more than Kyoto.

Rain of 1 mm or more falls on 15.7 days, and 10 mm or more on 6.8 days.

Rain of 30 mm or more in one day falls on 2.0 days, and 50 mm or more on 0.8 days.

0.7 days reach 30°C or more.

The sun is out for 40% or more of the possible hours on 9.0 days, and 10.3 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 18.0°C (64°F) and the low 10.4°C (51°F).

Average temperature

18.8°C (66°F)

Days of 25°C or more

9.9 days

Early, mid and late June

By the last ten days of June the average high in Nikko is 1.3°C higher than in the first ten.

By ten-day totals, 11–20 June is the wettest (81.8 mm) and 1–10 June the driest (62.0 mm).

What to wear in Nikko in June

Mild: highs around 23.2°C

• Long sleeves, or a T-shirt with a light jacket or cardigan.
• Rain gear every day: a sturdy umbrella and a water-resistant jacket. Rain falls on 15.7 days.

Okunikko and Lake Chuzenji are colder: the average high there is 18.0°C, which is our Cool level.

Pack

• Sturdy umbrella and rain jacket

• Our clothing rules

Rainy season and typhoons

In an average year (1991–2020) the JMA says the rainy season in Kanto-Koshin starts around 7 June and ends around 19 July. In 2026 it started around 7 June and ended around 20 July.

In an average June, 0.2 typhoons come within 300 km of the Kanto-Koshin region; across Japan, 0.8 come within 300 km and 0.2 make landfall (JMA, 1991–2020).

June records in Nikko

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

Hottest June day

35.9°C (97°F) on 25 June 2022 (records since 1979)

Coldest June night

6.7°C (44°F) on 3 June 2016 (records since 1979)

Wettest June day

168.0 mm on 19 June 2012 (records since 1979)

Holidays and crowds in June

There are no national holidays in June 2027.

In June 2025, hotels and inns across Tochigi Prefecture were 51.5% full on average (9th busiest of 12 months). Foreign guests spent 28,600 nights there that month (Japan Tourism Agency). That compares with 55.3% in May and 56.3% in July.

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

What's on in Nikko in June

Nikko before and after June

• Nikko in May
• Nikko in July
• All 12 months in Nikko

Other places in June

• All 15 places in June

Related items

• Nikko by month
• Japan in June
• Nikko in May
• Nikko in July