Ranong in Summer
In summer (June, July and August), Ranong sees average daytime highs around 29°C and overnight lows near 24°C, with 812 mm of rain over about 81 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Across summer, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 1% of the time across summer, and the air most often feels miserable.
Summer is Ranong's 3rd-best season to visit on our travel score. For the whole year in context, see Ranong's year-round climate.
- Avg daytime high
- 29°C
- 3rd-warmest season
- Avg overnight low
- 24°C
- Rainfall
- 812 mm
- 81 wet days
- Avg wind
- 11 km/h
- Travel score
- 3.0
- 3rd-best season
- Months
- Jun · Jul · Aug
Temperature in Ranong in Summer
Across summer, daytime highs hold fairly steady around 29°C.
A typical summer day in Ranong reaches about 29°C and drops to 24°C overnight. The warmest of the three months is June, the coolest August.
How summer really feels in Ranong
Once humidity and wind are folded in, summer brings about 92 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.
Ranong 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 | 30° / 22° | 61 | 7.6 | 11.5 | 5.1 |
| Feb | 32° / 22° | 33 | 5 | 11.7 | 4.5 |
| Mar | 33° / 23° | 105 | 10.9 | 11.9 | 3.5 |
| Apr | 33° / 24° | 182 | 19.1 | 12.2 | 2.8 |
| May | 31° / 24° | 273 | 27.9 | 12.5 | 2.6 |
| Jun | 30° / 24° | 250 | 26 | 12.6 | 3.0 |
| Jul | 29° / 24° | 270 | 27.5 | 12.5 | 3.0 |
| Aug | 29° / 24° | 292 | 27.8 | 12.3 | 3.0 |
| Sep | 29° / 24° | 361 | 28.1 | 12.1 | 2.9 |
| Oct | 29° / 23° | 373 | 28.3 | 11.8 | 3.0 |
| Nov | 29° / 23° | 201 | 21.2 | 11.5 | 3.7 |
| Dec | 29° / 22° | 86 | 11.5 | 11.4 | 5.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 1% of the time across summer.
Chance of precipitation in Summer
Ranong gets around 812 mm of rain over 81 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 11 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 Ranong
In summer, Ranong overlaps its cyclone and rainy season season. The full year is below, with each hazard's peak months called out.
Ranong sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Ranong's rainy season runs April–November, when most of the year's rain falls.
Is summer a good time to visit Ranong?
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 Ranong.
What to pack for Ranong in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Ranong sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 81 days see rain.
Sea temperature near Ranong 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 30 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 | 29 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 30 | Tropical |
| Jun | 29 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Ranong 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 Ranong peaks around August 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 9 (very high).
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) | 10 | 12 | 13 | 13 | 13 | 12 | 12 | 14 | 13 | 12 | 9 | 10 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 13 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 12 | Extreme |
| Nov | 9 | Very high |
| Dec | 10 | Very high |
Air quality in Ranong 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 Ranong is worst in January — around 19 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) | 19 | 18 | 18 | 18 | 15 | 14 | 15 | 13 | 13 | 13 | 13 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 19 | Moderate |
| Feb | 18 | Moderate |
| Mar | 18 | Moderate |
| Apr | 18 | Moderate |
| May | 15 | Moderate |
| Jun | 14 | Moderate |
| Jul | 15 | Moderate |
| Aug | 13 | Moderate |
| Sep | 13 | Moderate |
| Oct | 13 | Moderate |
| Nov | 13 | Moderate |
| Dec | 14 | Moderate |
Where is Ranong?
Ranong sits at 10.0°N, 98.6°E, 38 m above sea level, in Thailand. The nearest listed city is Kawthaung, 9.0 km away.
Topography around Ranong
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ranong.
Within 3 km, the terrain around Ranong has significant variations in elevation — a maximum elevation change of 464 m around an average of 52 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,058 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,368 m.
The land around Ranong is covered by trees (59%) and artificial surfaces (26%) within 3 km, trees (63%) and water (23%) within 16 km, and trees (52%) and water (45%) 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 Ranong (9.9658°, 98.6348°, elevation 38 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.