Trang weather in December

In December, Trang sees average daytime highs of 30°C and overnight lows near 24°C, with 133 mm of rain across 13.4 wet days and about 11.6 hours of daylight. It is the 7th-warmest and 9th-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 12% 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 Trang's 5th-clearest and 2nd-windiest month. For the whole year in context, see Trang's year-round climate.

Daytime high
30°
7th warmest
Overnight low
24°
3rd coldest
Rainfall
133 mm
13.4 wet days
Daylight
11 h 36 min
6:31 AM – 6:05 PM
Cloud cover
76%
5th clearest
Wind
9 km/h
2nd windiest
Solar energy
4.34 kWh/m²
Travel score
4.2
out of 10

Trang is city in Trang province, Thailand.

Density
4,517/km²
people per km²

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 Trang reaches about 30°C in the afternoon and slips back to 24°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°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)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124
313124

How December really feels in Trang

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.

Trang weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 24°466.311.64.3
Feb33° / 24°253.911.83.9
Mar33° / 24°8711.111.93.1
Apr33° / 25°16121.112.22.6
May32° / 25°22425.812.32.6
Jun31° / 25°2052312.43.0
Jul30° / 25°21923.412.43.1
Aug30° / 25°24725.512.23.0
Sep30° / 25°27425.6122.9
Oct30° / 24°33927.911.82.8
Nov30° / 24°24022.311.73.2
Dec30° / 24°13313.411.64.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 74%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12179
22278
32278
42179
52179
62278
72278
82278
92278
102377
112476
122476
132476
142575
152476
162476
172575
182575
192674
202773
212773
222872
232872
242872
253070
263070
273070
283268
293169
303268
313466

Chance of precipitation in December

Any precipitation

Trang gets around 133 mm of rain over 13.4 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 43% and peaks near 62% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
162
261
360
458
557
655
754
852
951
1049
1148
1246
1345
1444
1542
1641
1740
1839
1938
2037
2136
2235
2334
2433
2532
2631
2731
2830
2929
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 75% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1026137
2026335
3026434
4026632
5026830
6027028
7027127
8027325
9027523
10027622
11027721
12027820
13037819
14037918
15038017
16048016
17048115
18058015
19068014
20068113
21078013
22088012
23097912
240107911
251117810
261117810
271127710
28113779
29113779
30114769
31114769

Wind in December

Winds average 9 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
149calm
159calm
169calm
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 6:24 AM to 6:38 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)
111.66:245:59
211.66:245:59
311.66:246:00
411.66:256:00
511.66:256:00
611.66:266:01
711.66:266:01
811.66:276:01
911.66:276:02
1011.66:286:02
1111.66:286:03
1211.66:296:03
1311.66:296:03
1411.66:306:04
1511.66:306:04
1611.66:316:05
1711.66:316:05
1811.66:326:05
1911.66:326:06
2011.66:336:06
2111.66:336:07
2211.66:346:07
2311.66:346:08
2411.66:356:08
2511.66:356:09
2611.66:366:09
2711.66:366:10
2811.66:366:10
2911.66:376:11
3011.66:376:11
3111.66:386:12

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.34 kWh/m².

For context, solar energy here swings from a low near 4.15 kWh/m² to a high of 6.08 kWh/m² in March across the year — December's 4.34 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.2Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.7Bright
Planning a trip in December

Hazard calendar for Trang

In seasonPeak

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

Trang 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 December a good time to visit Trang?

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

4.2
Sightseeing
2nd-best month of the year
6.0
Beach & pool
3rd-best month of the year

December is a reasonable time to visit Trang for sightseeing.

What to pack for Trang in December

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

In December, Trang sees daytime highs around 30°C and nights near 24°C. Pack light clothes. Worth having: rain gear. About 13 days see rain.

light clothesrain gear

Sea temperature near Trang 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 33 km away) is warmest in May at about 30°C and coldest in January near 29°C.

The water stays above 20°C all year — warm enough for a swim any month.

28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar30Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Trang in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks 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 Trang peaks around February 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 22UV 13Nov 22UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Extreme

Air quality in Trang 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 Trang is worst in April — around 24 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1624 µg/m³Feb 1319 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb18Moderate
Mar22Moderate
Apr24Moderate
May21Moderate
Jun22Moderate
Jul21Moderate
Aug18Moderate
Sep21Moderate
Oct22Moderate
Nov22Moderate
Dec20Moderate
Location & terrain

Where is Trang?

Trang sits at 7.6°N, 99.6°E, 27 m above sea level, in Thailand. The nearest listed city is Huai Yot, 26 km away.

Ko Phi PhiKrabi

Topography around Trang

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

Within 3 km, the terrain around Trang has only modest variations in elevation — a maximum elevation change of 49 m around an average of 14 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 397 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,334 m.

The land around Trang is covered by trees (49%) and artificial surfaces (32%) within 3 km, trees (82%) within 16 km, and trees (63%) and water (29%) within 80 km.

3 km
49 m
16 km
397 m
80 km
1,334 m
treesgrasslandcroplandartificial surfaceswatermangroves
December weather nearby: Huai Yot 26 km · Phatthalung 52 km · Ko Lanta 58 km · Thung Song 68 km · Ron Phibun 74 km · Ranot 82 km · Ko Phi Phi 95 km · Krabi 96 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 Trang (7.5563°, 99.6114°, elevation 27 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).