Tha Kham weather in September

In September, Tha Kham sees average daytime highs of 32°C and overnight lows near 24°C, with 217 mm of rain across 25.9 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 2% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Tha Kham's 12th-clearest and 6th-windiest month. For the whole year in context, see Tha Kham's year-round climate.

Daytime high
32°
8th warmest
Overnight low
24°
7th coldest
Rainfall
217 mm
25.9 wet days
Daylight
12 hours
6:16 AM – 6:19 PM
Cloud cover
87%
12th clearest
Wind
7 km/h
6th windiest
Solar energy
4.82 kWh/m²
Travel score
2.5
out of 10

Tha Kham is town in Surat Thani province, Thailand.

Founded
1955

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical September day in Tha Kham reaches about 32°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124

How September really feels in Tha Kham

Once humidity and wind are folded in, September averages 30 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Tha Kham weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°699.511.54.4
Feb33° / 23°375.811.73.7
Mar35° / 24°10911.211.92.7
Apr35° / 25°15618.412.22.0
May34° / 25°18024.212.42.1
Jun33° / 25°14221.812.52.5
Jul32° / 25°14322.312.52.6
Aug32° / 24°16823.312.32.6
Sep32° / 24°21725.912.12.5
Oct31° / 24°31728.511.82.5
Nov30° / 24°25623.611.63.1
Dec30° / 23°13516.511.54.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 6% of September, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1991
2991
3991
4991
5991
6892
7892
8793
9793
10892
11892
12892
13892
14892
15892
16892
17892
18892
19892
20892
21793
22793
23793
24793
25793
26793
27793
28793
29694
30694

Chance of precipitation in September

Any precipitation

Tha Kham gets around 217 mm of rain over 25.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 87% and peaks near 92% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
182
282
382
482
582
683
783
884
984
1085
1185
1286
1386
1487
1587
1687
1788
1888
1989
2089
2189
2290
2390
2490
2590
2691
2791
2892
2992
3092

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the miserable band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
15050
25050
34951
44951
54951
64951
74951
85050
95050
105050
115050
124951
134951
144852
154753
164753
174654
184555
194456
204357
214258
224159
234060
243961
253961
263862
273763
283664
293664
303565

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 6:17 AM to 6:15 AM, and sunset from 6:28 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:176:28
212.26:176:27
312.26:176:27
412.26:176:26
512.16:176:26
612.16:176:25
712.16:176:24
812.16:176:24
912.16:176:23
1012.16:176:23
1112.16:166:22
1212.16:166:21
1312.16:166:21
1412.16:166:20
1512.16:166:20
1612.06:166:19
1712.06:166:18
1812.06:166:18
1912.06:166:17
2012.06:156:16
2112.06:156:16
2212.06:156:15
2312.06:156:14
2412.06:156:14
2512.06:156:13
2612.06:156:13
2712.06:156:12
2811.96:156:11
2911.96:156:11
3011.96:156:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.82 kWh/m².

For context, solar energy here swings from a low near 4.07 kWh/m² to a high of 6.16 kWh/m² in March across the year — September's 4.82 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
15.0Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
Planning a trip in September

Hazard calendar for Tha Kham

In seasonPeak

In September, Tha Kham sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Tha Kham sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Cyclone
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Tha Kham?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.5
Sightseeing
8th-best month of the year
3.8
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Tha Kham.

What to pack for Tha Kham in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Tha Kham sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Tha Kham in September

The nearest coast averages about 29°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 33 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.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul30Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Tha Kham in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks 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 Tha Kham peaks around August 21 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 21UV 13Dec 16UV 10
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug14Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Air quality in Tha Kham in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Tha Kham is worst in April — around 21 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1021 µg/m³Aug 2014 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb18Moderate
Mar20Moderate
Apr21Moderate
May17Moderate
Jun16Moderate
Jul16Moderate
Aug14Moderate
Sep15Moderate
Oct15Moderate
Nov14Moderate
Dec15Moderate
Location & terrain

Where is Tha Kham?

Tha Kham sits at 9.1°N, 99.2°E, 10 m above sea level, in Thailand. The nearest listed city is Surat Thani, 12 km away.

Lang SuanNakhon Si ThammaratKo Pha-nganRanongThung Song

Topography around Tha Kham

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tha Kham.

Within 3 km, the terrain around Tha Kham has only modest variations in elevation — a maximum elevation change of 73 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 308 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,535 m.

The land around Tha Kham is covered by trees (70%) within 3 km, trees (69%) within 16 km, and trees (75%) and water (22%) within 80 km.

3 km
73 m
16 km
308 m
80 km
1,535 m
treesgrasslandcroplandartificial surfaceswatermangroves
September weather nearby: Surat Thani 12 km · Ban Na San 37 km · Ko Samui 91 km · Lang Suan 94 km · Nakhon Si Thammarat 110 km · Ko Pha-ngan 113 km · Ranong 115 km · Thung Song 116 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
Buddhist 93%Muslim 5%Christian 1%other 1%

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 Kham (9.1107°, 99.2321°, elevation 10 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).