Temperature
Hot by day, warm at night.
86°Ftypical September high
Typical range
September climate
September in Amakusa
Japan · East Asia
Hot days and some sun. Typhoon risk near peak and humid air are the main drawbacks.
Some tradeoffs
Daytime high
86°F
Lows around 74°F
Rain
Several rainy days
Sun
9 h/day
Air feel
Humid
Sea temp
82°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 13 wet days, more than in most months.
42%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
9 hSeptember sunshine
Heat & humidity by month
Warm days, with humid periods.
59%September Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 89° and nights feel near 79°.
Very coldColdCoolComfortableWarmHotSwelteringNight hours
Clear sky
Partly cloudy skies this month.
41%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
5 mphSeptember Calm
Sea temperature
82°FSeptember sea temp
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 84°F, easing to about 80°F in early evening.
Avg temp Typical range
Morning81°F
Feels 85°F
Rain24%
Cloud57%
Humid airHigh
Sun intensityModerate
Midday85°F
Feels 89°F
Rain27%
Cloud61%
Humid airHigh
Sun intensityStrong
Late afternoon85°F
Feels 88°F
Rain28%
Cloud61%
Humid airHigh
Sun intensityModerate
Early evening79°F
Feels 84°F
Rain20%
Cloud60%
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% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 53 | 42 | 2.8 | 8 | 6.6 | 64 | 67 |
| Feb | 56 | 43 | 3.6 | 10 | 7.5 | 65 | 65 |
| Mar | 62 | 49 | 5.2 | 12 | 7.9 | 65 | 65 |
| Apr | 70 | 57 | 5.5 | 11 | 8.7 | 68 | 67 |
| May | 77 | 64 | 7.6 | 12 | 8.8 | 72 | 71 |
| Jun | 81 | 71 | 17.2 | 18 | 7.1 | 81 | 75 |
| Jul | 88 | 78 | 13.1 | 19 | 9.1 | 80 | 80 |
| Aug | 91 | 79 | 8.2 | 16 | 10.2 | 76 | 84 |
| Sep | 86 | 74 | 7.5 | 13 | 9.0 | 74 | 82 |
| Oct | 78 | 64 | 4.3 | 8 | 8.5 | 68 | 78 |
| Nov | 67 | 55 | 4.1 | 8 | 7.6 | 68 | 74 |
| Dec | 56 | 45 | 3.0 | 8 | 7.0 | 65 | 70 |
Similar climates
Similar
Similar travel stylePalermoItalySimilar climateTokyoJapanSimilar travel styleJeju CitySouth KoreaSimilar travel styleNaha / OkinawaJapan
Want a side-by-side climate view? Compare Amakusa with Palermo.
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: Jul 31, 2026
Data & methodology