Temperature
Warm by day, warm at night.
82°Ftypical September high
Typical range
September climate
September in Ko Chang
Thailand · Asia
Not the best time: Typhoon risk near peak and humid air are the main limitations.
Not an ideal month
Daytime high
82°F
Lows around 75°F
Rain
Rain most days
Sun
4.5 h/day
Air feel
Very humid
Sea temp
85°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
It rains on most days, and rain often persists for longer stretches. About 30 wet days, more than in most months.
100%wet-day frequency
AmountWet-day chance
Sunshine
Sunshine is limited, with cloud often dominating.
4.3 hSeptember sunshine
Heat & humidity by month
Very humid air is a major factor this month.
76%September Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 88° and nights feel near 83°.
ComfortableWarmHotNight hours
Clear sky
Overcast skies this month.
7%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
4 mphSeptember Calm
Sea temperature
85°FSeptember sea temp
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 80°F, easing to about 78°F in early evening.
Avg temp Typical range
Morning79°F
Feels 87°F
Rain82%
Cloud88%
Humid airVery high
Sun intensityModerate
Midday82°F
Feels 89°F
Rain90%
Cloud91%
Humid airVery high
Sun intensityModerate
Late afternoon80°F
Feels 87°F
Rain82%
Cloud94%
Humid airVery high
Sun intensityLow
Early evening78°F
Feels 86°F
Rain56%
Cloud95%
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% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 84 | 70 | 1.5 | 7 | 9.1 | 75 | 82 |
| Feb | 85 | 72 | 2.1 | 11 | 8.7 | 80 | 83 |
| Mar | 85 | 74 | 4.6 | 20 | 8.0 | 83 | 84 |
| Apr | 86 | 76 | 6.9 | 23 | 8.0 | 85 | 86 |
| May | 85 | 76 | 14.6 | 30 | 5.9 | 87 | 87 |
| Jun | 83 | 76 | 18.7 | 29 | 4.4 | 88 | 86 |
| Jul | 82 | 75 | 22.0 | 31 | 4.5 | 89 | 85 |
| Aug | 83 | 75 | 19.6 | 31 | 4.1 | 88 | 85 |
| Sep | 82 | 75 | 19.1 | 30 | 4.3 | 89 | 85 |
| Oct | 84 | 74 | 11.8 | 25 | 6.1 | 85 | 85 |
| Nov | 85 | 73 | 3.2 | 12 | 8.1 | 80 | 84 |
| Dec | 84 | 70 | 0.8 | 4 | 9.1 | 74 | 83 |
Similar climates
Similar
Similar travel styleMaafushiMaldivesSimilar travel stylePhu QuocVietnamSimilar travel styleRaa AtollMaldivesSimilar travel styleBoracayPhilippines
Want a side-by-side climate view? Compare Ko Chang with Maafushi.
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