Month guide · Hakone · Japan
Hakone in September
What September is really like in Hakone: weather, crowds, prices, events and what to pack.
Updated By the AMZBooking editorial team
Photo: まも, Public domain
Quick answer
September is a quieter month with trade-offs. Expect average highs of 23°C (73°F), lows of 17°C (63°F), about 14 rainy days and roughly 12.3 hours of daylight. Still warm, with typhoon risk early in the month; the silver grass starts to turn.
Key facts
- Average high / low
- 23°C (73°F) / 17°C (63°F)
- Rainy days
- About 14
- Daylight
- About 12.3 hours
- Crowds
- Moderate
- Hotel prices
- Average
Weather in September
September is the 3rd-warmest month in Hakone: days average 23°C (73°F) against a yearly average high of 17°C (63°F), and nights fall to about 17°C (63°F). Rain falls on roughly 14 of its 30 days. Compared with August (27°C (81°F)), September is cooler; by October highs drop to around 18°C (64°F).
- Sunrise (15 September)
- About 05:26
- Sunset (15 September)
- About 17:51
- Daylight
- About 12.3 hours
Autumn (September–November). Golden silver grass in Sengokuhara, autumn leaves in November and clearer skies; weekends are busy.
Crowds and prices
On a 1–5 scale, September rates 3 for crowds (the peak is August at 5) and 3 for hotel prices (highest in August). Prices sit in the middle of the year's range.
Events in September
September has no major recurring festival in Hakone, which usually means easier bookings.
What to do in September
With frequent rain, plan around indoor sights and keep outdoor time flexible.
Experience · Hakone-Yumoto
Tenzan onsen
Bring your own towel to save on hire, and check the tattoo policy before you go.
- Time needed
- 1.5–2 hours
- Cost
- Low cost
- Couples
- Rainy day
- Nature
Architecture · Miyanoshita
Fujiya Hotel
Opened in 1878, the Fujiya Hotel mixes Japanese temple-style roofs with Western interiors and has hosted many foreign visitors over its history.
- Time needed
- 1 hour
- Cost
- Mid-priced
- Architecture
- History
- Food
- Rainy day
Museum · Gōra
Hakone Open-Air Museum
Climb the spiral stairs inside the Symphonic Sculpture tower for its stained glass and a view over the grounds, and finish at the footbath.
- Time needed
- 2–3 hours
- Cost
- Mid-priced
- Iconic
- Art
- Kids
- Outdoors
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Nature · Ōwakudani
Ōwakudani
This volcanic valley, formed by an eruption around 3,000 years ago, hisses with sulphur vents and hot springs on the slopes of Mount Kami.
- Time needed
- 1 hour
- Cost
- Low cost
- Iconic
- Nature
- Views
- Food
What to pack
For highs near 23°C, lows near 17°C and 14 wet days: light layers for the day and a light jacket for the evening; a compact umbrella and waterproof shoes — rain is frequent; comfortable walking shoes.
Is September a good time to visit Hakone?
A quieter month with trade-offs. If your dates are flexible, April and October–December are better overall. Compare every month.
Hakone in other months
Questions travellers ask
+Is September a good time to visit Hakone?
It is a quieter month with trade-offs. Still warm, with typhoon risk early in the month; the silver grass starts to turn.
+How warm is Hakone in September?
Average highs are around 23°C (73°F) and lows around 17°C (63°F).
+Does it rain a lot in Hakone in September?
Expect rain on about 14 days of the month, so pack for wet weather.