Sadao weather in December

In December, Sadao sees average daytime highs of 30°C and overnight lows near 23°C, with 196 mm of rain across 18.4 wet days and about 11.6 hours of daylight. It is the 12th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 6% 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 Sadao's 5th-clearest and 3rd-windiest month. For the whole year in context, see Sadao's year-round climate.

Daytime high
30°
12th warmest
Overnight low
23°
3rd coldest
Rainfall
196 mm
18.4 wet days
Daylight
11 h 36 min
6:26 AM – 6:03 PM
Cloud cover
81%
5th clearest
Wind
10 km/h
3rd windiest
Solar energy
4.21 kWh/m²
Travel score
3.9
out of 10

Sadao is town in Songkhla province, Thailand.

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 30°C through the month.

A typical December day in Sadao reaches about 30°C in the afternoon and slips back to 23°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°C. Set against its neighbours, December runs on par with November and about 2°C cooler than January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How December really feels in Sadao

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.

Sadao weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°689.711.74.3
Feb33° / 23°386.111.83.6
Mar34° / 24°10213122.7
Apr34° / 24°14720.112.12.3
May33° / 25°1612412.32.3
Jun32° / 25°12020.612.42.6
Jul32° / 24°12620.912.32.8
Aug32° / 24°1392212.22.7
Sep31° / 24°17825122.6
Oct31° / 24°27428.511.92.5
Nov30° / 24°27926.111.72.9
Dec30° / 23°19618.411.63.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 83%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11486
21486
31585
41585
51684
61684
71684
81684
91684
101684
111684
121684
131684
141684
151783
161783
171783
181783
191783
201783
211783
221882
231882
241882
251882
261981
272080
282179
292377
302377
312575

Chance of precipitation in December

Any precipitation

Sadao gets around 196 mm of rain over 18.4 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 60% and peaks near 73% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
173
272
371
470
569
669
768
867
967
1066
1166
1265
1365
1464
1563
1662
1761
1859
1958
2057
2156
2254
2353
2451
2550
2649
2747
2846
2945
3044
3143

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 79% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
116732
216831
317029
417227
517326
617524
717623
817722
917821
1017920
1118019
1218118
1328018
1428117
1528117
1628216
1738116
1838215
1938215
2048115
2148214
2258114
2358213
2468113
2568212
2678112
2778211
2888111
2988111
3098011
3198110

Wind in December

Winds average 10 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 6:19 AM to 6:33 AM, and sunset from 5:57 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:195:57
211.66:195:58
311.66:205:58
411.66:205:58
511.66:215:59
611.66:215:59
711.66:225:59
811.66:226:00
911.66:236:00
1011.66:236:00
1111.66:246:01
1211.66:246:01
1311.66:256:02
1411.66:256:02
1511.66:256:03
1611.66:266:03
1711.66:266:03
1811.66:276:04
1911.66:276:04
2011.66:286:05
2111.66:286:05
2211.66:296:06
2311.66:296:06
2411.66:306:07
2511.66:306:07
2611.66:316:08
2711.66:316:08
2811.66:326:09
2911.66:326:09
3011.66:326:10
3111.66:336:10

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.21 kWh/m².

For context, solar energy here swings from a low near 4.12 kWh/m² to a high of 6.1 kWh/m² in March across the year — December's 4.21 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.1Bright
44.1Bright
54.1Bright
64.1Bright
74.1Bright
84.1Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.4Bright
264.4Bright
274.4Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in December

Hazard calendar for Sadao

In seasonPeak

In December, Sadao sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

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

Sadao's rainy season runs April–May, when most of the year's rain falls.

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

Is December a good time to visit Sadao?

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

3.9
Sightseeing
2nd-best month of the year
5.3
Beach & pool
4th-best month of the year

December is a weaker month for outdoor sightseeing in Sadao.

What to pack for Sadao in December

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

In December, Sadao sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 18 days see rain.

light clothesrain gear

Sea temperature near Sadao 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 44 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 Sadao 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 Sadao peaks around February 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 21UV 14Nov 21UV 11
UV index (midday)Level
Jan11Extreme
Feb14Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Sadao 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 Sadao is worst in October — around 27 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 1227 µg/m³Feb 1217 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb17Moderate
Mar21Moderate
Apr27Moderate
May26Moderate
Jun27Moderate
Jul26Moderate
Aug24Moderate
Sep26Moderate
Oct27Moderate
Nov23Moderate
Dec18Moderate
Location & terrain

Where is Sadao?

Sadao sits at 6.6°N, 100.4°E, 50 m above sea level, in Thailand. The nearest listed city is Changloon, 23 km away.

Topography around Sadao

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

Within 3 km, the terrain around Sadao has only modest variations in elevation — a maximum elevation change of 184 m around an average of 49 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 343 m; within 80 km, large variations in elevation — a maximum elevation change of 994 m.

The land around Sadao is covered by trees (78%) within 3 km, trees (84%) within 16 km, and trees (62%) and water (25%) within 80 km.

3 km
184 m
16 km
343 m
80 km
994 m
treesgrasslandcroplandartificial surfaceswatermangroves
December weather nearby: Changloon 23 km · Kampung Hutan Arau 28 km · Padang Besar 32 km · Kangar 33 km · Satun 39 km · Jitra 41 km · Hat Yai 42 km · Anak Bukit 51 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 Sadao (6.6388°, 100.4234°, elevation 50 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).