Satun weather in December

In December, Satun sees average daytime highs of 29°C and overnight lows near 25°C, with 105 mm of rain across 13.5 wet days and about 11.6 hours of daylight. It is the 9th-warmest and 10th-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 11% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of December to 11 h 36 min by month's end. Set against the rest of the year, December is Satun's 5th-clearest and 2nd-windiest month. For the whole year in context, see Satun's year-round climate.

Daytime high
29°
9th warmest
Overnight low
25°
2nd coldest
Rainfall
105 mm
13.5 wet days
Daylight
11 h 36 min
6:27 AM – 6:04 PM
Cloud cover
78%
5th clearest
Wind
13 km/h
2nd windiest
Solar energy
4.68 kWh/m²
Travel score
4.9
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 December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Satun reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°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, December runs on par with November and about 1°C cooler than January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925
312925

How December really feels in Satun

Once humidity and wind are folded in, December averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Satun weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 10th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11981
22080
32080
42179
52278
62278
72278
82278
92278
102278
112278
122179
132179
142278
152278
162377
172278
182278
192278
202278
212278
222278
232278
242278
252476
262476
272575
282674
292674
302872
312971

Chance of precipitation in December

Any precipitation

Satun gets around 105 mm of rain over 13.5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 43% and peaks near 61% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
161
259
358
456
555
654
753
852
950
1049
1148
1247
1345
1444
1543
1642
1741
1840
1939
2038
2137
2236
2335
2434
2533
2633
2732
2831
2930
3029
3128

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 91% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
118613
218613
318712
418811
518811
618910
71909
81909
91918
101927
111936
121936
131945
142935
152944
162944
173934
183934
194933
204933
215923
225923
236922
247912
257912
268902
278902
289892
299901
3010891
3111881

Wind in December

Winds average 13 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112calm
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 36 min at the start of December to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over December. Sunrise moves from 6:20 AM to 6:34 AM, and sunset from 5:59 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:205:59
211.66:215:59
311.66:215:59
411.66:226:00
511.66:226:00
611.66:236:00
711.66:236:01
811.66:236:01
911.66:246:02
1011.66:246:02
1111.66:256:02
1211.66:256:03
1311.66:266:03
1411.66:266:04
1511.66:276:04
1611.66:276:04
1711.66:286:05
1811.66:286:05
1911.66:296:06
2011.66:296:06
2111.66:306:07
2211.66:306:07
2311.66:316:08
2411.66:316:08
2511.66:326:09
2611.66:326:09
2711.66:336:10
2811.66:336:10
2911.66:336:11
3011.66:346:11
3111.66:346:12

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.68 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 — December's 4.68 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Satun

In seasonPeak

In December, 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 December a good time to visit Satun?

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

4.9
Sightseeing
2nd-best month of the year
6.2
Beach & pool
3rd-best month of the year

December is a reasonable time to visit Satun for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Satun in December

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

In December, Satun sees daytime highs around 29°C and nights near 25°C. Pack light clothes. Worth having: rain gear and sun protection. About 14 days see rain.

light clothesrain gearsun protection

Sea temperature near Satun in December

The nearest coast averages about 29°C in December — 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 December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (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 December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December 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
December 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).