Skip to main content

Hakone in June: rain, what to pack and what's on

In June, Hakone gets 420.4 mm of rain on about 16.2 days (JMA, 1991–2020). The JMA does not measure temperature in Hakone.

Updated

420.4 mmprecipitation
16.2 dayswet days

Hakone weather in June

Averages for 1991–2020 at the JMA's Hakone rain gauge (855 m above sea level). It records precipitation only.

Precipitation
420.4 mm
Wet days
16.2 days

June is Hakone's 3rd wettest month (420.4 mm).

Of our 15 places, Hakone gets the most precipitation in June: 136.0 mm more than Naha.

Rain of 1 mm or more falls on 16.2 days, and 10 mm or more on 8.5 days.

Rain of 30 mm or more in one day falls on 4.7 days, and 50 mm or more on 2.8 days, including 0.9 days with 100 mm or more.

Early, mid and late June

Hakone in June by ten-day period: averages for 1991–2020 (JMA)
DaysPrecipitation
1–10 June88.8 mm
11–20 June176.6 mm
21–30 June155.0 mm

By ten-day totals, 11–20 June is the wettest (176.6 mm) and 1–10 June the driest (88.8 mm).

A red Hakone Tozan Railway train numbered 1001 passing blue hydrangeas along a curved track
Photo: Tozan 1001 Hydrangea.jpg by Cassiopeia sweet (Public domain, cropped), via Wikimedia Commons.

Rain gear for Hakone in June

The JMA does not measure temperature in Hakone, so we do not give a clothing level. The JMA's nearest temperature stations are at different heights.

  • Rain gear every day: a sturdy umbrella and a water-resistant jacket. Rain falls on 16.2 days.

Pack

  • Sturdy umbrella and rain jacket

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 Hakone

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

Wettest June day
417.5 mm on 2 June 2023 (records since 1976)

Holidays and crowds in June

There are no national holidays in June 2027.

In June 2025, hotels and inns across Kanagawa Prefecture were 60.2% full on average (11th busiest of 12 months). Foreign guests spent 350,590 nights there that month (Japan Tourism Agency). That compares with 63.9% in May and 64.3% in July.

What's on in Hakone in June

Events in Hakone in June: dates from each organizer's official page
EventWhenWhere and what
Hydrangea Train (Ajisai Densha) on the Hakone Tozan Railway箱根登山電車 あじさい電車Mid-June to mid-July. Bloom moves uphill with altitude.Along the Hakone Tozan Railway line, from Hakone-Yumoto to Gora and Sounzan. Hydrangeas along the line start to bloom from mid-June, and the trains in this season are nicknamed 'Ajisai Densha'. Bloom periods: Hakone-Yumoto, Ohiradai and Miyanoshita mid to late June; Chokoku-no-Mori and Gora late June to early July; Sounzan early to mid July. Peak times vary with weather and temperature. Official page

Hakone before and after June

Hakone: May, June and July (JMA, 1991–2020)
MonthPrecipitationWet daysDays of 10 mm or more
May326.8 mm (−93.6 mm)13.2 days (−3.0 days)7.6 days (−0.9 days)
June420.4 mm16.2 days8.5 days
July425.3 mm (+4.9 mm)15.8 days (−0.4 days)7.7 days (−0.8 days)

Other places in June

June: Hakone against five other places (JMA, 1991–2020)
PlacePrecipitationAgainst HakoneWet daysAgainst Hakone
Tokyo167.8 mm−252.6 mm11.6 days−4.6 days
Kyoto199.7 mm−220.7 mm11.5 days−4.7 days
Osaka185.1 mm−235.3 mm11.3 days−4.9 days
Sapporo60.4 mm−360.0 mm7.5 days−8.7 days
OkinawaNaha284.4 mm−136.0 mm11.3 days−4.9 days

Frequently asked questions

What is the weather like in Hakone in June?

Hakone gets 420.4 mm of rain on about 16.2 days in June (JMA, 1991–2020). The JMA does not record temperature in Hakone.

Is Hakone busy in June?

In June 2025, hotels and inns across Kanagawa Prefecture were 60.2% full on average (11th busiest of 12 months). Foreign guests spent 350,590 nights there that month (Japan Tourism Agency).

What events are on in Hakone in June?

Hydrangea Train (Ajisai Densha) on the Hakone Tozan Railway: Mid-June to mid-July. Bloom moves uphill with altitude.

Related items

Sources for this page

Read more

Back to Japan by month

Compiled by Japan Japan !! · Updated October 2, 2026