Tha Mai in Fall
In fall (September, October and November), Tha Mai sees average daytime highs around 30°C and overnight lows near 26°C, with 647 mm of rain over about 60 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Across fall, daytime highs hold fairly steady around 30°C. The sky is clear or mostly clear about 16% of the time across fall, and the air most often feels miserable.
Fall is Tha Mai's 2nd-best season to visit on our travel score. Tha Mai 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 Tha Mai's year-round climate.
- Avg daytime high
- 30°C
- 2nd-warmest season
- Avg overnight low
- 26°C
- Rainfall
- 647 mm
- 60 wet days
- Avg wind
- 9 km/h
- Travel score
- 3.9
- 2nd-best season
- Months
- Sep · Oct · Nov
Temperature in Tha Mai in Fall
Across fall, daytime highs hold fairly steady around 30°C.
A typical fall day in Tha Mai reaches about 30°C and drops to 26°C overnight. The warmest of the three months is November, the coolest November.
How fall really feels in Tha Mai
Once humidity and wind are folded in, fall brings about 91 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Tha Mai weather by month
How the three fall months (September, October and November) 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 Fall
The sky is clear or mostly clear about 16% of the time across fall.
Chance of precipitation in Fall
Tha Mai gets around 647 mm of rain over 60 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 9 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 12 min in early September to 11 h 18 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.7 kWh/m².
Hazard calendar for Tha Mai
In fall, Tha Mai overlaps its pacific typhoon and monsoon season. The full year is below, with each hazard's peak months called out.
Tha Mai sits in the Pacific typhoon belt; the season peaks July–October.
Tha Mai's monsoon runs May–October, when most of the year's rain falls.
Is fall a good time to visit Tha Mai?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Tha Mai.
What to pack for Tha Mai in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Tha Mai sees daytime highs around 30°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 60 days see rain.
Sea temperature near Tha Mai in Fall
The nearest coast averages about 29°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 14 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 Tha Mai in Fall
Clear-sky midday UV across fall 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 Tha Mai 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 Tha Mai in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Tha Mai 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 Tha Mai?
Tha Mai sits at 12.6°N, 102.0°E, 4 m above sea level, in Thailand. The nearest listed city is Chanthaburi, 11 km away.
Topography around Tha Mai
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tha Mai.
Within 3 km, the terrain around Tha Mai has only modest variations in elevation — a maximum elevation change of 63 m around an average of 11 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 559 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,603 m.
The land around Tha Mai is covered by trees (61%) within 3 km, trees (52%) and water (23%) within 16 km, and trees (60%) and water (30%) 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 Tha Mai (12.6219°, 102.0048°, elevation 4 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.