Ranong in Winter
In winter (December, January and February), Ranong sees average daytime highs around 31°C and overnight lows near 22°C, with 179 mm of rain over about 24 wet days across the season. It is the 2nd-warmest season and the driest season of the year.
Over the season highs climb from about 29°C in early December to 33°C by late February. The sky is clear or mostly clear about 30% of the time across winter, and the air most often feels oppressive.
Winter is Ranong's best season of the year to visit on our travel score. For the whole year in context, see Ranong's year-round climate.
- Avg daytime high
- 31°C
- 2nd-warmest season
- Avg overnight low
- 22°C
- Rainfall
- 179 mm
- 24 wet days
- Avg wind
- 9 km/h
- Travel score
- 4.9
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Ranong in Winter
Over the season highs climb from about 29°C in early December to 33°C by late February.
A typical winter day in Ranong reaches about 31°C and drops to 22°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Ranong
Once humidity and wind are folded in, winter brings about 79 days that feel above 32°C and 0 that feel at or below 0°C.
The story in winter is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Ranong weather by month
How the three winter months (December, January and February) 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 Winter
The sky is clear or mostly clear about 30% of the time across winter.
Chance of precipitation in Winter
Ranong gets around 179 mm of rain over 24 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 9 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 30 min in early December to 11 h 48 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 5.3 kWh/m².
Hazard calendar for Ranong
In winter, Ranong overlaps its cyclone 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 winter a good time to visit Ranong?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Ranong for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Ranong in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Ranong sees daytime highs around 31°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 24 days see rain.
Sea temperature near Ranong in Winter
The nearest coast averages about 28°C across winter — 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 Winter
Clear-sky midday UV across winter averages around 10 (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 Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter 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.