Temperature
Hot by day, warm at night.
87°Ftypical September high
Typical range
September climate
September in Tainan
Taiwan · Asia
Hot afternoons and some sun. Heavier storm-season rain and humid air are the main drawbacks.
Some tradeoffs
Mid to late
Daytime high
87°F
Lows around 78°F
Rain
Several rainy days
Sun
10 h/day
Air feel
Very humid
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 13 wet days, more than in most months.
43%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
10 hSeptember sunshine
Heat & humidity by month
Very humid air is a major factor this month.
61%September Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 93° and nights feel near 86°.
CoolComfortableWarmHotSwelteringNight hours
Clear sky
Mostly cloudy skies this month.
36%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
5 mphSeptember Calm
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 85°F, easing to about 81°F in early evening.
Avg temp Typical range
Morning84°F
Feels 91°F
Rain22%
Cloud55%
Humid airVery high
Sun intensityModerate
Midday87°F
Feels 93°F
Rain36%
Cloud62%
Humid airVery high
Sun intensityStrong
Late afternoon85°F
Feels 92°F
Rain40%
Cloud69%
Humid airVery high
Sun intensityLow
Early evening81°F
Feels 89°F
Rain19%
Cloud66%
Humid airVery high
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 | 72 | 60 | 1.8 | 7 | 9.0 | 78 |
| Feb | 73 | 61 | 1.6 | 7 | 9.5 | 78 |
| Mar | 77 | 65 | 2.2 | 9 | 10.3 | 77 |
| Apr | 82 | 71 | 4.6 | 12 | 10.4 | 78 |
| May | 85 | 76 | 11.3 | 18 | 9.8 | 80 |
| Jun | 87 | 78 | 15.3 | 21 | 9.4 | 82 |
| Jul | 88 | 79 | 12.8 | 19 | 9.9 | 81 |
| Aug | 87 | 79 | 15.7 | 21 | 9.0 | 82 |
| Sep | 87 | 78 | 7.6 | 13 | 10.0 | 81 |
| Oct | 84 | 74 | 2.9 | 8 | 10.1 | 80 |
| Nov | 80 | 70 | 1.7 | 6 | 9.2 | 80 |
| Dec | 74 | 63 | 1.9 | 7 | 8.7 | 78 |
Similar climates
Similar
Similar travel styleManilaPhilippinesSimilar travel styleKaohsiungTaiwanSimilar travel styleDhakaBangladeshSimilar travel styleVientianeLaos
Want a side-by-side climate view? Compare Tainan with Manila.
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