Temperature
Warm by day, mild at night.
82°Ftypical September high
Typical range
September climate
September in Khao Lak
Thailand · Asia
Typhoon risk near peak and humid air are the main limitations.
Wet but workable
Daytime high
82°F
Lows around 71°F
Rain
Rain most days
Sun
5 h/day
Air feel
Humid
Sea temp
85°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
It rains on most days, with a mix of brief and longer spells. About 27 wet days, more than in most months.
90%wet-day frequency
AmountWet-day chance
Sunshine
Sunshine is limited, with cloud often dominating.
4.8 hSeptember sunshine
Heat & humidity by month
Warm days, with humid periods.
98%September Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 84° and nights feel near 77°.
ComfortableWarmHotNight hours
Clear sky
Overcast skies this month.
9%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 78°F, easing to about 75°F in early evening.
Avg temp Typical range
Morning77°F
Feels 83°F
Rain63%
Cloud90%
Humid airVery high
Sun intensityModerate
Midday81°F
Feels 86°F
Rain77%
Cloud91%
Humid airVery high
Sun intensityStrong
Late afternoon78°F
Feels 83°F
Rain77%
Cloud92%
Humid airVery high
Sun intensityLow
Early evening75°F
Feels 81°F
Rain45%
Cloud90%
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 | 85 | 67 | 2.9 | 10 | 9.2 | 77 | 83 |
| Feb | 89 | 67 | 2.3 | 8 | 9.6 | 73 | 83 |
| Mar | 90 | 69 | 5.5 | 15 | 9.1 | 76 | 85 |
| Apr | 88 | 71 | 8.1 | 23 | 8.3 | 83 | 86 |
| May | 85 | 72 | 10.9 | 28 | 6.1 | 87 | 86 |
| Jun | 83 | 71 | 10.3 | 26 | 4.7 | 88 | 85 |
| Jul | 83 | 71 | 10.6 | 27 | 5.6 | 88 | 85 |
| Aug | 82 | 71 | 10.8 | 26 | 5.6 | 88 | 85 |
| Sep | 82 | 71 | 13.0 | 27 | 4.8 | 89 | 85 |
| Oct | 82 | 70 | 14.7 | 29 | 5.8 | 89 | 84 |
| Nov | 83 | 69 | 10.0 | 25 | 6.6 | 87 | 84 |
| Dec | 83 | 68 | 4.5 | 15 | 7.9 | 83 | 83 |
Similar climates
Similar
Similar travel styleBoracayPhilippinesSimilar travel stylePhuketThailandSimilar travel stylePhu QuocVietnamSimilar travel styleSihanoukvilleCambodia
Want a side-by-side climate view? Compare Khao Lak with Boracay.
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