Best time to visit Hakone

Re-score for me — drag the dial — every chart on the page recolours live for your heat limit 27°C
I'm comfortable up to 27°C feels-like
22° heat-averse 30° heat-loving

Default 27 °C is the upper edge of the Holiday Climate Index "ideal comfort" band (Scott, Rutty, Amelung & Tang, 2016). Above this, most warm-tourism travellers report measurable discomfort.

Saved to this browser. Changes update the strips below.
Recent · 2020-2024
Interest Google Trends 2021-2025 searches, not arrivals (?)
Day · avg daily high (?)
Night · avg overnight low (?)
UV index · On a typical day around midday, UV is about this (?)
234567886432
On the sunniest 1 in 10 days, UV reaches this — and even higher
557891010864
PM2.5 air quality · on a typical day (?)
121415161414141110111210
On the worst 1 in 10 days, PM2.5 reaches this — and even higher
202224252224252016151816
November 7/10 feels 11°C (+1°C vs 1991-2020) · HCI 66/100
Day 13° · Night 6° 67% humidity 14 km/h wind 8 rain days (103h) 172h sun
Thermal 4
Sky 8
Rain 8
Wind 10

Higher = better, including rain & wind (green = "doesn't hurt the score", not "lots of it").

How is this scored? HCI / Steadman / CCI gate — full methodology and citations below.

Compare with another destination

Add as many as you like — stacked below the main strips above. Each row is just the recent-window score strip and (for beach destinations) sea-temperature strip.

Tours in Hakone

6 top-rated tours via Viator. Booking links earn this site a commission at no cost to you. Map locations are approximate (centred on Hakone).

  1. 1Hakone Adventure: Explore Nature’s Beauty and Tranquility4.33★ (3)5h 30mfrom $156🔥 Selling fast
  2. 2Evangelion Hakone Tour Explore The Third New Tokyo City6h 30mfrom $211🔥 Selling fast
  3. 3Yosegi Zaiku Craft Experience in Hakone2h 30mfrom $173🔥 Selling fast
  4. 4From Hakone: Mt Fuji and Lake Kawaguchiko Area Bus Tourfrom $109🔥 Selling fast
  5. 5From Hakone: One Way Bus Transfer to Lake Kawaguchikofrom $58🔥 Selling fast
  6. 6Hakone Old Tokaido Road Hiking Tour to Hakone Shrine5.00★ (1)6hfrom $128

Last refreshed 2026-05-30.

Similar climatesFujikawaguchiko92% · Tokyo86% · Kamakura86%

Other destinations with the most-alike year-round climate to Hakone (apparent temperature, rain hours, sunshine — matched within the same trip-profile). The ±N chip compares each match's typical score for the current month against Hakone's. Based on the 2020-2024 climatology, not this year's actual weather.

Month-by-month

Month Temp °C Feels °C Rain days Rain h Rain h/day Humidity Wind km/h Sun h UV Interest Score
Jan -2–6 2 8 100 12.5 62% 14 170 2 Quiet 5
Feb -2–7 3 10 127 12.7 61% 15 161 3 Quiet 5
Mar 2–11 7 14 170 12.1 63% 16 186 4 Quiet 5
Apr 6–14 12 12 160 13.3 63% 16 192 5 Quiet 6
May 10–18 17 16 203 12.7 67% 16 190 6 Quiet 6
Jun 14–21 22 17 241 14.2 73% 15 170 7 Quiet 6
Jul 19–25 27 19 308 16.2 76% 16 182 8 Quiet 4
Aug 20–27 29 18 265 14.7 72% 14 227 8 Moderate 4
Sep 17–23 25 16 231 14.4 74% 14 187 6 Moderate 6
Oct 11–18 17 13 169 13.0 71% 14 170 4 Moderate 6
Nov 6–13 11 8 103 12.9 67% 14 172 3 Peak 7
Dec -1–8 4 6 69 11.5 61% 15 180 2 Moderate 6

UV Index in Hakone by Month

UV index in Hakone peaks at 8 (very high) in July, dropping to 2 (low) in January. July reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.

Best months in detail

November

7/10

6–13°C (feels 11°C) · 8 rain days (103h) · 172 sun hours · 67% humidity · Peak crowd · UV 3 (low) · sunniest 1 in 10 days reach 4 (moderate)

October

6/10

11–18°C · 13 rain days (169h) · 170 sun hours · 71% humidity · Moderate crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 6 (moderate)

April

6/10

6–14°C (feels 12°C) · 12 rain days (160h) · 192 sun hours · 63% humidity · Quiet crowd · UV 5 (moderate) · sunniest 1 in 10 days reach 7 (high)

Every month

Show the other 9 months in detail

January

5/10

-2–6°C (feels 2°C) · 8 rain days (100h) · 170 sun hours · 62% humidity · Quiet crowd · UV 2 (low)

February

5/10

-2–7°C (feels 3°C) · 10 rain days (127h) · 161 sun hours · 61% humidity · Quiet crowd · UV 3 (moderate) · sunniest 1 in 10 days reach 5 (moderate)

March

5/10

2–11°C (feels 7°C) · 14 rain days (170h) · 186 sun hours · 63% humidity · Quiet crowd · UV 4 (moderate) · sunniest 1 in 10 days reach 5 (moderate)

May

6/10

10–18°C (feels 17°C) · 16 rain days (203h) · 190 sun hours · 67% humidity · Quiet crowd · UV 6 (moderate) · sunniest 1 in 10 days reach 8 (very high)

June

6/10

14–21°C · 17 rain days (241h) · 170 sun hours · 73% humidity · Quiet crowd · UV 7 (high) · sunniest 1 in 10 days reach 9 (very high)

July

4/10

19–25°C (feels 27°C) · 19 rain days (308h) · 182 sun hours · 76% humidity · Quiet crowd · UV 8 (very high) · sunniest 1 in 10 days reach 10 (very high)

August

4/10

20–27°C (feels 29°C) · 18 rain days (265h) · 227 sun hours · 72% humidity · Moderate crowd · UV 8 (high) · sunniest 1 in 10 days reach 10 (very high)

September

6/10

17–23°C (feels 25°C) · 16 rain days (231h) · 187 sun hours · 74% humidity · Moderate crowd · UV 6 (high) · sunniest 1 in 10 days reach 8 (very high)

December

6/10

-1–8°C (feels 4°C) · 6 rain days (69h) · 180 sun hours · 61% humidity · Moderate crowd · UV 2 (low)

Frequently asked questions about visiting Hakone

When is the best time to visit Hakone?

November is the highest-scoring month (7/10 on the Holiday Climate Index). Typical conditions: 6–13°C (8 rainy days). The top three months by score are November, October, April.

What is the worst time to visit Hakone?

August is the lowest-scoring month (4/10). Typical conditions: 20–27°C (18 rainy days).

When are crowds lowest in Hakone?

Search-interest seasonality (Google Trends 2021-2025) is lowest in May and peaks in November. Interest tracks both in-trip visitors and lead-time planners, so treat it as a "destination is on people's minds" signal rather than literal arrivals.

Which months in Hakone have good weather but fewer tourists?

April (climate 6/10, crowd index 8) and May (climate 6/10, crowd index 0) — shoulder months with above-average climate and below-median search-interest. Often the best value-for-weather trade.

What is the UV index in Hakone by month?

UV peaks at 8 (very high) in July and is lowest in January at 2 (low). Monthly peak values: Jan 2, Feb 3, Mar 4, Apr 5, May 6, Jun 7, Jul 8, Aug 8, Sep 6, Oct 4, Nov 3, Dec 2. July reach very high or extreme levels — apply SPF 50+, wear a hat and protective clothing, and limit direct sun between 11:00 and 17:00.

What is the UV index in Hakone in July?

July is the peak UV month in Hakone, with a daily-peak UV index of 8 (very high). At this level, sunburn can occur in under 20 minutes on unprotected fair skin. Apply SPF 50+, wear protective clothing and a hat, and avoid direct midday sun (11:00–17:00).

How high can UV get in Hakone on the sunniest days?

Most days look like the monthly average, but on the sunniest ~1 in 10 days UV climbs higher than the mean suggests. July is the worst case: typical days average UV 8 (very high), but the top 10% of days reach UV 10 (very high) — and even higher. Months where the sunniest days routinely exceed the typical reading: February, March, April, May, June, July, August, September, October, November. Plan sun protection for the worst case, not the average.

Is air quality in Hakone bad for travelers?

PM2.5 (fine-particle pollution) exceeds the WHO sensitive-group guideline (15 µg/m³) in 12 months: January, February, March, April, May, June, July, August, September, October, November, December. The worst month is April with a typical-day mean of 16 µg/m³ (unhealthy for sensitive); on the worst 10% of days PM2.5 reaches 25 µg/m³ (unhealthy for sensitive) and higher. People with asthma, heart conditions, or sensitive children may want to avoid these months or limit outdoor activity. Source: CAMS via Open-Meteo.