Ko Tao in Spring
In spring (March, April and May), Ko Tao sees average daytime highs around 29°C and overnight lows near 27°C, with 334 mm of rain over about 43 wet days across the season. It is the warmest season of the year and the 3rd-wettest season.
Across spring, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 33% of the time across spring, and the air most often feels miserable.
Spring is Ko Tao's 2nd-best season to visit on our travel score. Ko Tao 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 Ko Tao's year-round climate.
- Avg daytime high
- 29°C
- warmest season of the year
- Avg overnight low
- 27°C
- Rainfall
- 334 mm
- 43 wet days
- Avg wind
- 15 km/h
- Travel score
- 5.0
- 2nd-best season
- Months
- Mar · Apr · May
Temperature in Ko Tao in Spring
Across spring, daytime highs hold fairly steady around 29°C.
A typical spring day in Ko Tao reaches about 29°C and drops to 27°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Ko Tao
Once humidity and wind are folded in, spring brings about 79 days that feel above 32°C and 0 that feel at or below 0°C.
The story in spring is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Ko Tao weather by month
How the three spring months (March, April and May) 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 | 27° / 26° | 72 | 8.2 | 11.5 | 6.9 |
| Feb | 28° / 27° | 30 | 4.4 | 11.7 | 7.4 |
| Mar | 28° / 27° | 87 | 8.4 | 11.9 | 6.3 |
| Apr | 29° / 28° | 97 | 12.7 | 12.2 | 5.1 |
| May | 29° / 28° | 150 | 22.3 | 12.5 | 3.7 |
| Jun | 29° / 27° | 127 | 20.4 | 12.6 | 3.8 |
| Jul | 29° / 27° | 115 | 20.1 | 12.5 | 4.0 |
| Aug | 29° / 27° | 121 | 19.6 | 12.3 | 4.2 |
| Sep | 28° / 27° | 168 | 23 | 12.1 | 3.8 |
| Oct | 28° / 26° | 290 | 25.2 | 11.8 | 4.0 |
| Nov | 28° / 26° | 256 | 19.1 | 11.5 | 4.8 |
| Dec | 27° / 26° | 122 | 11 | 11.4 | 6.2 |
Cloud cover in Spring
The sky is clear or mostly clear about 33% of the time across spring.
Chance of precipitation in Spring
Ko Tao gets around 334 mm of rain over 43 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 15 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 48 min in early March to 12 h 30 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 6.1 kWh/m².
Hazard calendar for Ko Tao
In spring, Ko Tao overlaps its cyclone and rainy season season. The full year is below, with each hazard's peak months called out.
Ko Tao sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.
Ko Tao's rainy season runs September–November, when most of the year's rain falls.
Is spring a good time to visit Ko Tao?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a reasonable time to visit Ko Tao for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Ko Tao in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Ko Tao sees daytime highs around 29°C and nights near 27°C. Pack light clothes, rain gear and sun protection. About 43 days see rain.
Sea temperature near Ko Tao in Spring
The nearest coast averages about 30°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in May 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 | 28 | 29 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 28 |
| Comfort | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 28 | Warm |
| Feb | 28 | 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 | 28 | Warm |
UV index in Ko Tao in Spring
Clear-sky midday UV across spring averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ko Tao peaks around August 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 | 12 | 12 | 12 | 14 | 13 | 11 | 10 | 9 |
| Level | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 10 | Very high |
| Feb | 12 | Extreme |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 13 | Extreme |
| Oct | 11 | Extreme |
| Nov | 10 | Extreme |
| Dec | 9 | Very high |
Air quality in Ko Tao in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring falls, not just the annual average.
Air quality in Ko Tao is worst in January — 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) | 16 | 15 | 13 | 14 | 13 | 14 | 15 | 12 | 12 | 11 | 10 | 12 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 16 | Moderate |
| Feb | 15 | Moderate |
| Mar | 13 | Moderate |
| Apr | 14 | Moderate |
| May | 13 | Moderate |
| Jun | 14 | Moderate |
| Jul | 15 | Moderate |
| Aug | 12 | Good |
| Sep | 12 | Good |
| Oct | 11 | Good |
| Nov | 10 | Good |
| Dec | 12 | Moderate |
Where is Ko Tao?
Ko Tao sits at 10.1°N, 99.8°E, 0 m above sea level, in Thailand. The nearest listed city is Ko Pha-ngan, 43 km away.
Topography around Ko Tao
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ko Tao.
Within 3 km, the terrain around Ko Tao has significant variations in elevation — a maximum elevation change of 368 m around an average of 60 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 368 m; within 80 km, large variations in elevation — a maximum elevation change of 621 m.
The land around Ko Tao is covered by water (49%) and trees (47%) within 3 km, water (98%) within 16 km, and water (95%) 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 Ko Tao (10.0917°, 99.8377°, 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.