Khao Yoi in Winter
In winter (December, January and February), Khao Yoi sees average daytime highs around 31°C and overnight lows near 22°C, with 35 mm of rain over about 7 wet days across the season. It is the coldest season of the year and the driest season of the year.
Over the season highs climb from about 30°C in early December to 33°C by late February. The sky is clear or mostly clear about 56% of the time across winter, and the air most often feels oppressive.
Winter is Khao Yoi's best season of the year to visit on our travel score. For the whole year in context, see Khao Yoi's year-round climate.
- Avg daytime high
- 31°C
- coldest season of the year
- Avg overnight low
- 22°C
- Rainfall
- 35 mm
- 7 wet days
- Avg wind
- 7 km/h
- Travel score
- 5.6
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Khao Yoi in Winter
Over the season highs climb from about 30°C in early December to 33°C by late February.
A typical winter day in Khao Yoi 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 Khao Yoi
Once humidity and wind are folded in, winter brings about 52 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.
Khao Yoi 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° / 21° | 13 | 2.4 | 11.3 | 5.9 |
| Feb | 32° / 23° | 12 | 2.4 | 11.6 | 4.8 |
| Mar | 34° / 24° | 47 | 7.6 | 11.9 | 3.4 |
| Apr | 35° / 26° | 79 | 12.8 | 12.3 | 2.3 |
| May | 34° / 26° | 145 | 23.1 | 12.6 | 2.0 |
| Jun | 33° / 26° | 124 | 21.1 | 12.8 | 2.4 |
| Jul | 32° / 26° | 149 | 22.5 | 12.7 | 2.6 |
| Aug | 32° / 25° | 159 | 23.9 | 12.4 | 2.6 |
| Sep | 32° / 25° | 212 | 24.9 | 12.1 | 2.5 |
| Oct | 31° / 24° | 191 | 21.5 | 11.7 | 3.4 |
| Nov | 31° / 23° | 47 | 6.5 | 11.4 | 5.1 |
| Dec | 30° / 22° | 11 | 2 | 11.2 | 6.1 |
Cloud cover in Winter
The sky is clear or mostly clear about 56% of the time across winter.
Chance of precipitation in Winter
Khao Yoi gets around 35 mm of rain over 7 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 7 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 11 h 18 min in early December to 11 h 42 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 5.2 kWh/m².
Hazard calendar for Khao Yoi
In winter, Khao Yoi overlaps its cyclone season. The full year is below, with each hazard's peak months called out.
Khao Yoi sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Khao Yoi's rainy season runs May–October, when most of the year's rain falls.
Is winter a good time to visit Khao Yoi?
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 Khao Yoi for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Khao Yoi in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Khao Yoi sees daytime highs around 31°C and nights near 22°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.
Sea temperature near Khao Yoi in Winter
The nearest coast averages about 27°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 35 km away) is warmest in May at about 31°C and coldest in January near 27°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) | 27 | 28 | 29 | 30 | 31 | 30 | 30 | 30 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 28 | Warm |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 31 | Tropical |
| Jun | 30 | Tropical |
| Jul | 30 | Tropical |
| Aug | 30 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Warm |
UV index in Khao Yoi in Winter
Clear-sky midday UV across winter averages around 9 (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 Yoi peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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) | 9 | 9 | 13 | 12 | 12 | 12 | 12 | 14 | 12 | 10 | 9 | 9 |
| Level | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 9 | Very high |
| Feb | 9 | Very high |
| Mar | 13 | Extreme |
| Apr | 12 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 12 | Extreme |
| Oct | 10 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Khao Yoi 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 Khao Yoi is worst in February — around 61 µg/m³ PM2.5 (unhealthy), about 2.6× the cleanest month (August, 24 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 58 | 61 | 60 | 47 | 33 | 24 | 24 | 24 | 29 | 46 | 48 | 48 |
| Level | Unhealthy | Unhealthy | Unhealthy | Poor | Moderate | Moderate | Moderate | Moderate | Moderate | Poor | Poor | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 58 | Unhealthy |
| Feb | 61 | Unhealthy |
| Mar | 60 | Unhealthy |
| Apr | 47 | Poor |
| May | 33 | Moderate |
| Jun | 24 | Moderate |
| Jul | 24 | Moderate |
| Aug | 24 | Moderate |
| Sep | 29 | Moderate |
| Oct | 46 | Poor |
| Nov | 48 | Poor |
| Dec | 48 | Poor |
Where is Khao Yoi?
Khao Yoi sits at 13.2°N, 99.8°E, 13 m above sea level, in Thailand. The nearest listed city is Phetchaburi, 19 km away.
Topography around Khao Yoi
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Khao Yoi.
Within 3 km, the terrain around Khao Yoi has only modest variations in elevation — a maximum elevation change of 82 m around an average of 11 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 564 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,498 m.
The land around Khao Yoi is covered by cropland (44%) and grassland (24%) within 3 km, trees (31%) and cropland (30%) within 16 km, and trees (50%) and water (25%) 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 Yoi (13.2402°, 99.8243°, elevation 13 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.