Khao Saming weather in December

In December, Khao Saming sees average daytime highs of 30°C and overnight lows near 23°C, with 22 mm of rain across 4.6 wet days and about 11.3 hours of daylight. It is the 7th-warmest and 12th-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 39% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 18 min at the start of December to 11 h 18 min by month's end. Set against the rest of the year, December is Khao Saming's 3rd-clearest and 1st-windiest month. For the whole year in context, see Khao Saming's year-round climate.

Daytime high
30°
7th warmest
Overnight low
23°
2nd coldest
Rainfall
22 mm
4.6 wet days
Daylight
11 h 18 min
6:28 AM – 5:45 PM
Cloud cover
52%
3rd clearest
Wind
9 km/h
1st windiest
Solar energy
4.96 kWh/m²
Travel score
5.4
out of 10

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 Khao Saming reaches about 30°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, December runs on par with November and on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63123
73123
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313123

How December really feels in Khao Saming

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.

Khao Saming weather by month

How December compares with the rest of the year at a glance. December is the 7th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°377.711.45.1
Feb31° / 24°469.811.64.8
Mar31° / 25°11919.511.93.7
Apr31° / 26°17122.912.33.0
May31° / 26°35329.312.62.5
Jun30° / 26°48229.312.72.6
Jul29° / 25°54930.512.72.7
Aug29° / 25°53330.512.42.7
Sep29° / 25°48029.512.12.7
Oct30° / 25°29024.811.73.1
Nov31° / 24°6910.111.44.6
Dec30° / 23°224.611.35.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55545
65644
75644
85545
95545
105743
115743
125743
135743
145842
155941
165941
176040
186040
196139
206238
216238
226337
236436
246337
256337
266436
276436
286337
296436
306436
316436

Chance of precipitation in December

Any precipitation

Khao Saming gets around 22 mm of rain over 4.6 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 15% and peaks near 23% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
123
222
321
421
520
620
720
819
918
1018
1117
1216
1316
1415
1515
1614
1714
1813
1913
2012
2112
2211
2311
2411
2511
2611
2711
2812
2912
3013
3114

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 34% of days. Sticky, muggy-or-worse air turns up on roughly 81% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1017273827
2017273826
3018283825
4018293824
5019293823
6019303722
70110313721
80110313720
90111323719
100112323618
110212323617
120213323617
130214323516
141215323516
151316313415
161317313315
171417313215
181418313215
191418313114
201519313014
211519313013
221619312913
231620322912
241620322912
251620322911
261619323011
271619323111
281619323210
291618323310
301618323410
311517313510

Wind in December

Winds average 9 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 18 min at the start of December to 11 h 18 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 6:35 AM, and sunset from 5:40 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:205:40
211.36:215:40
311.36:215:40
411.36:225:41
511.36:225:41
611.36:235:41
711.36:235:41
811.36:245:42
911.36:245:42
1011.36:255:42
1111.36:265:43
1211.36:265:43
1311.36:275:44
1411.36:275:44
1511.36:285:44
1611.36:285:45
1711.36:295:45
1811.36:295:46
1911.36:305:46
2011.36:305:47
2111.36:315:47
2211.36:315:47
2311.36:315:48
2411.36:325:48
2511.36:325:49
2611.36:335:49
2711.36:335:50
2811.36:345:50
2911.36:345:51
3011.36:355:51
3111.36:355:52

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.96 kWh/m².

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 5.62 kWh/m² in April across the year — December's 4.96 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Khao Saming

In seasonPeak

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

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

Khao Saming's monsoon runs May–October, when most of the year's rain falls.

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

Is December a good time to visit Khao Saming?

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

5.4
Sightseeing
1st-best month of the year
7.6
Beach & pool
1st-best month of the year

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

What to pack for Khao Saming in December

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

In December, Khao Saming sees daytime highs around 30°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near Khao Saming in December

The nearest coast averages about 28°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 34 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
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Khao Saming in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Khao Saming peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 16UV 14Nov 23UV 9
UV index (midday)Level
Jan10Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Khao Saming 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 Khao Saming is worst in February — around 40 µg/m³ PM2.5 (poor), about 3.8× the cleanest month (November, 11 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateGoodFeb 1539 µg/m³Nov 1411 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb40Poor
Mar27Moderate
Apr19Moderate
May13Moderate
Jun12Moderate
Jul13Moderate
Aug12Good
Sep11Good
Oct11Good
Nov11Good
Dec12Good
Location & terrain

Where is Khao Saming?

Khao Saming sits at 12.4°N, 102.4°E, 27 m above sea level, in Thailand. The nearest listed city is Trat, 15 km away.

Topography around Khao Saming

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

Within 3 km, the terrain around Khao Saming has only modest variations in elevation — a maximum elevation change of 112 m around an average of 21 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 268 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,727 m.

The land around Khao Saming is covered by trees (84%) within 3 km, trees (71%) within 16 km, and trees (49%) and water (35%) within 80 km.

3 km
112 m
16 km
268 m
80 km
1,727 m
treesgrasslandcroplandartificial surfaceswatermangroves
December weather nearby: Trat 15 km · Laem Ngop 21 km · Ko Chang 37 km · Laem Sing 42 km · Chanthaburi 46 km · Tha Mai 55 km · Pailin 58 km · Khlong Yai 81 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 Khao Saming (12.3537°, 102.4343°, 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).