Temperature
Warm by day, mild at night.
81°Ftypical September high
Typical range
September climate
September in Hakone
Japan · Asia
Heavier storm-season rain and late-day mugginess are the main limitations.
Some tradeoffs
Late
Daytime high
81°F
Lows around 71°F
Rain
Frequent rain
Sun
4 h/day
Air feel
Humid
When to visit
Month-by-month fit
Best
Precipitation
Rain is frequent. About 17 wet days, more than in most months.
57%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
Sunshine is limited, with cloud often dominating.
4.2 hSeptember sunshine
Heat & humidity by month
Warm days, with humid periods.
64%September Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 84° and nights feel near 76°.
FreezingVery coldColdCoolComfortableWarmHotNight hours
Clear sky
Mostly cloudy skies this month.
28%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
4 mphSeptember Calm
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 79°F, easing to about 75°F in early evening.
Avg temp Typical range
Morning77°F
Feels 82°F
Rain35%
Cloud67%
Humid airHigh
Sun intensityModerate
Midday81°F
Feels 85°F
Rain41%
Cloud72%
Humid airHigh
Sun intensityModerate
Late afternoon79°F
Feels 84°F
Rain33%
Cloud71%
Humid airHigh
Sun intensityLow
Early evening75°F
Feels 80°F
Rain25%
Cloud70%
Humid airHigh
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 49 | 36 | 3.5 | 10 | 4.7 | 67 |
| Feb | 50 | 37 | 4.4 | 11 | 4.6 | 69 |
| Mar | 57 | 43 | 7.1 | 15 | 5.0 | 72 |
| Apr | 66 | 51 | 7.3 | 15 | 5.2 | 74 |
| May | 74 | 60 | 7.8 | 15 | 5.9 | 77 |
| Jun | 79 | 67 | 9.8 | 18 | 4.3 | 83 |
| Jul | 86 | 75 | 9.5 | 17 | 4.8 | 83 |
| Aug | 88 | 76 | 7.9 | 17 | 6.2 | 82 |
| Sep | 81 | 71 | 10.0 | 17 | 4.2 | 82 |
| Oct | 72 | 60 | 9.5 | 15 | 4.1 | 80 |
| Nov | 63 | 50 | 5.3 | 12 | 4.2 | 77 |
| Dec | 54 | 41 | 3.4 | 10 | 4.8 | 71 |
Similar climates
Similar
Similar travel styleNikkoJapanSimilar travel styleSun Moon LakeTaiwanSimilar travel styleSapaVietnamSimilar travel styleDa LatVietnam
Want a side-by-side climate view? Compare Hakone with Nikko.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology