Chanthaburi in Spring
In spring (March, April and May), Chanthaburi sees average daytime highs around 30°C and overnight lows near 27°C, with 528 mm of rain over about 62 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 30°C. The sky is clear or mostly clear about 27% of the time across spring, and the air most often feels miserable.
Spring is Chanthaburi's 3rd-best season to visit on our travel score. Chanthaburi 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 Chanthaburi's year-round climate.
- Avg daytime high
- 30°C
- warmest season of the year
- Avg overnight low
- 27°C
- Rainfall
- 528 mm
- 62 wet days
- Avg wind
- 9 km/h
- Travel score
- 3.8
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Chanthaburi in Spring
Across spring, daytime highs hold fairly steady around 30°C.
A typical spring day in Chanthaburi reaches about 30°C and drops to 27°C overnight. The warmest of the three months is April, the coolest March.
How spring really feels in Chanthaburi
Once humidity and wind are folded in, spring brings about 92 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.
Chanthaburi 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 | 29° / 24° | 29 | 6.3 | 11.3 | 6.1 |
| Feb | 29° / 25° | 33 | 8.2 | 11.6 | 5.7 |
| Mar | 30° / 26° | 85 | 15.1 | 11.9 | 4.7 |
| Apr | 30° / 27° | 122 | 18.8 | 12.3 | 3.8 |
| May | 30° / 27° | 320 | 28.2 | 12.6 | 2.8 |
| Jun | 30° / 27° | 384 | 28.4 | 12.7 | 2.8 |
| Jul | 29° / 27° | 369 | 29.6 | 12.7 | 2.8 |
| Aug | 29° / 27° | 328 | 29.2 | 12.4 | 2.9 |
| Sep | 29° / 26° | 363 | 28.8 | 12.1 | 2.9 |
| Oct | 30° / 26° | 238 | 23 | 11.7 | 3.5 |
| Nov | 30° / 25° | 46 | 8 | 11.4 | 5.2 |
| Dec | 30° / 24° | 16 | 3.2 | 11.3 | 6.2 |
Cloud cover in Spring
The sky is clear or mostly clear about 27% of the time across spring.
Chance of precipitation in Spring
Chanthaburi gets around 528 mm of rain over 62 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 9 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 42 min in early March to 12 h 42 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 5.6 kWh/m².
Hazard calendar for Chanthaburi
In spring, Chanthaburi overlaps its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.
Chanthaburi sits in the Pacific typhoon belt; the season peaks July–October.
Chanthaburi's monsoon runs May–October, when most of the year's rain falls.
Is spring a good time to visit Chanthaburi?
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 weaker month for outdoor sightseeing in Chanthaburi.
What to pack for Chanthaburi in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Chanthaburi sees daytime highs around 30°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 62 days see rain.
Sea temperature near Chanthaburi 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 at the nearest coast (about 25 km away) is warmest in May at about 31°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 | 31 | 30 | 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 | 28 | Tropical |
| Mar | 29 | Tropical |
| Apr | 30 | Tropical |
| May | 31 | Tropical |
| Jun | 30 | Tropical |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 29 | Tropical |
| Dec | 28 | Tropical |
UV index in Chanthaburi 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 Chanthaburi peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 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 | 10 | 13 | 13 | 12 | 12 | 12 | 14 | 12 | 11 | 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 | 10 | Very high |
| Mar | 13 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 12 | Extreme |
| Jul | 12 | Extreme |
| Aug | 14 | Extreme |
| Sep | 12 | Extreme |
| Oct | 11 | Extreme |
| Nov | 9 | Very high |
| Dec | 9 | Very high |
Air quality in Chanthaburi 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 Chanthaburi is worst in February — around 32 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (August, 14 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) | 26 | 32 | 27 | 22 | 16 | 14 | 15 | 14 | 15 | 18 | 16 | 16 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 26 | Moderate |
| Feb | 32 | Moderate |
| Mar | 27 | Moderate |
| Apr | 22 | Moderate |
| May | 16 | Moderate |
| Jun | 14 | Moderate |
| Jul | 15 | Moderate |
| Aug | 14 | Moderate |
| Sep | 15 | Moderate |
| Oct | 18 | Moderate |
| Nov | 16 | Moderate |
| Dec | 16 | Moderate |
Where is Chanthaburi?
Chanthaburi sits at 12.6°N, 102.1°E, 7 m above sea level, in Thailand. The nearest listed city is Tha Mai, 11 km away.
Topography around Chanthaburi
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Chanthaburi.
Within 3 km, the terrain around Chanthaburi has only modest variations in elevation — a maximum elevation change of 38 m around an average of 8 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 937 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,596 m.
The land around Chanthaburi is covered by trees (45%) and artificial surfaces (33%) within 3 km, trees (64%) within 16 km, and trees (58%) and water (29%) 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 Chanthaburi (12.6096°, 102.1045°, elevation 7 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.