Khao Lak in Summer
In summer (June, July and August), Khao Lak sees average daytime highs around 28°C and overnight lows near 26°C, with 911 mm of rain over about 76 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 28°C. The sky is clear or mostly clear about 4% of the time across summer, and the air most often feels miserable.
Summer is Khao Lak's weakest season of the year to visit on our travel score. Khao Lak has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Khao Lak's year-round climate.
- Avg daytime high
- 28°C
- 3rd-warmest season
- Avg overnight low
- 26°C
- Rainfall
- 911 mm
- 76 wet days
- Avg wind
- 14 km/h
- Travel score
- 3.5
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Khao Lak in Summer
Across summer, daytime highs hold fairly steady around 28°C.
A typical summer day in Khao Lak reaches about 28°C and drops to 26°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Khao Lak
Once humidity and wind are folded in, summer brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Khao Lak weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 24° | 67 | 9.9 | 11.6 | 5.3 |
| Feb | 30° / 25° | 42 | 7.7 | 11.7 | 5.2 |
| Mar | 30° / 25° | 116 | 15.3 | 11.9 | 4.4 |
| Apr | 30° / 26° | 168 | 21.8 | 12.2 | 3.6 |
| May | 29° / 26° | 302 | 26.8 | 12.4 | 3.2 |
| Jun | 29° / 26° | 301 | 24.8 | 12.5 | 3.4 |
| Jul | 28° / 26° | 288 | 25.4 | 12.5 | 3.5 |
| Aug | 28° / 25° | 322 | 25.7 | 12.3 | 3.6 |
| Sep | 28° / 25° | 363 | 26.3 | 12.1 | 3.6 |
| Oct | 28° / 25° | 355 | 28.8 | 11.8 | 3.3 |
| Nov | 29° / 25° | 208 | 23.1 | 11.6 | 3.7 |
| Dec | 29° / 25° | 90 | 13.1 | 11.5 | 5.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 4% of the time across summer.
Chance of precipitation in Summer
Khao Lak gets around 911 mm of rain over 76 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 14 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 12 h 30 min in early June to 12 h 12 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 4.8 kWh/m².
Hazard calendar for Khao Lak
In summer, Khao Lak overlaps its cyclone and rainy season season. The full year is below, with each hazard's peak months called out.
Khao Lak sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Khao Lak's rainy season runs April–November, when most of the year's rain falls.
Is summer a good time to visit Khao Lak?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Khao Lak.
What to pack for Khao Lak in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Khao Lak sees daytime highs around 28°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 76 days see rain.
Sea temperature near Khao Lak in Summer
The nearest coast averages about 29°C across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 13 km away) is warmest in April at about 30°C and coldest in January near 28°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 28 | 29 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 29 | Tropical |
UV index in Khao Lak in Summer
Clear-sky midday UV across summer averages around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Khao Lak peaks around August 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 at about 10 (extreme).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 11 | 13 | 13 | 13 | 12 | 12 | 11 | 14 | 13 | 12 | 10 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 13 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 11 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 10 | Extreme |
| Dec | 10 | Very high |
Air quality in Khao Lak in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Khao Lak is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 15 | 14 | 16 | 16 | 12 | 13 | 13 | 11 | 12 | 11 | 11 | 12 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 14 | Moderate |
| Mar | 16 | Moderate |
| Apr | 16 | Moderate |
| May | 12 | Moderate |
| Jun | 13 | Moderate |
| Jul | 13 | Moderate |
| Aug | 11 | Good |
| Sep | 12 | Good |
| Oct | 11 | Good |
| Nov | 11 | Good |
| Dec | 12 | Good |
Where is Khao Lak?
Khao Lak sits at 8.6°N, 98.2°E, 0 m above sea level, in Thailand. The nearest listed city is Ban Kamala, 74 km away.
Topography around Khao Lak
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Khao Lak.
Within 3 km, the terrain around Khao Lak has significant variations in elevation — a maximum elevation change of 388 m around an average of 45 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 686 m; within 80 km, large variations in elevation — a maximum elevation change of 1,077 m.
The land around Khao Lak is covered by water (50%) and trees (45%) within 3 km, water (49%) and trees (46%) within 16 km, and water (59%) and trees (37%) within 80 km.
Thailand travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type A / B / C
- 230 V · 50 Hz
- Prices
- ≈ 31% of US
- price level, 2025
- GDP per capita
- $8,057
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Homicide rate
- 4.8
- per 100k, 2011
- Road deaths
- 32.2
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very low
- EF EPI 402
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Khao Lak (8.615°, 98.2399°, elevation 0 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.