Satun weather in September

In September, Satun sees average daytime highs of 29°C and overnight lows near 26°C, with 247 mm of rain across 25.5 wet days and about 12 hours of daylight. It is the 11th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 2% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Satun's 11th-clearest and 7th-windiest month. For the whole year in context, see Satun's year-round climate.

Daytime high
29°
11th warmest
Overnight low
26°
6th coldest
Rainfall
247 mm
25.5 wet days
Daylight
12 hours
6:13 AM – 6:15 PM
Cloud cover
87%
11th clearest
Wind
9 km/h
7th windiest
Solar energy
5.11 kWh/m²
Travel score
3.4
out of 10

Satun is town in Satun province, Thailand.

Air quality
Moderate
PM2.5 14 µg/m³ · 2019

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 29°C through the month.

A typical September day in Satun reaches about 29°C in the afternoon and slips back to 26°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12926
22926
32926
42926
52926
62926
72926
82926
92926
102926
112926
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242925
252925
262925
272925
282825
292825
302825

How September really feels in Satun

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.

Satun weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 25°375.911.75.3
Feb31° / 25°366.711.84.6
Mar31° / 26°10915.5123.7
Apr31° / 26°16523.512.13.1
May30° / 26°22525.912.33.1
Jun30° / 26°18422.312.43.5
Jul29° / 26°19623.212.33.6
Aug29° / 26°23424.512.23.5
Sep29° / 26°24725.5123.4
Oct28° / 25°28128.111.93.2
Nov29° / 25°19223.211.73.6
Dec29° / 25°10513.511.64.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September.

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 (%)
1892
2892
3892
4892
5892
6892
7892
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
191090
20991
21991
22892
23892
24793
25793
26793
27793
28694
29694
30595

Chance of precipitation in September

Any precipitation

Satun gets around 247 mm of rain over 25.5 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 85% and peaks near 90% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
184
284
384
484
584
684
784
884
984
1084
1184
1284
1384
1484
1584
1684
1784
1884
1984
2085
2185
2286
2386
2487
2587
2688
2788
2889
2989
3090

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
15446
25545
35644
45743
55842
65842
75941
86040
96139
106139
116139
126238
136238
146238
156238
166238
176238
186337
196337
206337
216337
226436
236436
246436
256436
266535
276535
286634
296634
306733

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 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 12 minutes over September. Sunrise moves from 6:16 AM to 6:11 AM, and sunset from 6:23 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:166:23
212.16:156:23
312.16:156:22
412.16:156:22
512.16:156:21
612.16:156:21
712.16:156:20
812.16:146:20
912.16:146:19
1012.16:146:18
1112.16:146:18
1212.16:146:17
1312.16:146:17
1412.06:136:16
1512.06:136:16
1612.06:136:15
1712.06:136:15
1812.06:136:14
1912.06:126:13
2012.06:126:13
2112.06:126:12
2212.06:126:12
2312.06:126:11
2412.06:126:11
2512.06:116:10
2612.06:116:10
2712.06:116:09
2812.06:116:09
2912.06:116:08
3011.96:116:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.11 kWh/m².

For context, solar energy here swings from a low near 4.55 kWh/m² to a high of 6.24 kWh/m² in March across the year — September's 5.11 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in September

Hazard calendar for Satun

In seasonPeak

In September, Satun sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Satun sits in the Pacific typhoon belt; the season peaks July–October.

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

Is September a good time to visit Satun?

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

3.4
Sightseeing
9th-best month of the year
4.1
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Satun.

What to pack for Satun in September

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

In September, Satun sees daytime highs around 29°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Satun in September

The nearest coast averages about 30°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 21 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
Jan28Tropical
Feb29Tropical
Mar30Tropical
Apr30Tropical
May31Tropical
Jun31Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Satun 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 Satun peaks around February 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 20UV 14Nov 21UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec11Extreme

Air quality in Satun 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 Satun is worst in April — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Satun's WHO annual average of 14 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1316 µg/m³Nov 1913 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar15Moderate
Apr16Moderate
May13Moderate
Jun15Moderate
Jul15Moderate
Aug13Moderate
Sep14Moderate
Oct13Moderate
Nov12Moderate
Dec13Moderate
Location & terrain

Where is Satun?

Satun sits at 6.6°N, 100.1°E, 15 m above sea level, in Thailand. The nearest listed city is Kangar, 25 km away.

Topography around Satun

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

Within 3 km, the terrain around Satun has only modest variations in elevation — a maximum elevation change of 124 m around an average of 11 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 548 m; within 80 km, large variations in elevation — a maximum elevation change of 1,155 m.

The land around Satun is covered by trees (54%) within 3 km, trees (50%), water (23%) and mangroves (20%) within 16 km, and trees (48%) and water (40%) within 80 km.

3 km
124 m
16 km
548 m
80 km
1,155 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Kangar 25 km · Kampung Hutan Arau 32 km · Padang Besar 37 km · Sadao 39 km · Langkawi 41 km · Kampung Baru Ulu Melaka 43 km · Changloon 45 km · Jitra 56 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 Satun (6.6231°, 100.0668°, elevation 15 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).