Laem Sing weather in December

In December, Laem Sing sees average daytime highs of 30°C and overnight lows near 24°C, with 16 mm of rain across 3.2 wet days and about 11.3 hours of daylight. It is the 6th-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 42% 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 Laem Sing's 4th-clearest and 4th-windiest month. For the whole year in context, see Laem Sing's year-round climate.

Daytime high
30°
6th warmest
Overnight low
24°
2nd coldest
Rainfall
16 mm
3.2 wet days
Daylight
11 h 18 min
6:30 AM – 5:46 PM
Cloud cover
50%
4th clearest
Wind
11 km/h
4th windiest
Solar energy
5.02 kWh/m²
Travel score
6.2
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 Laem Sing 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 27°C and 31°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33025
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
152924
162924
172924
182924
192924
202924
212924
222923
232923
242923
252923
262923
272923
282923
292923
302923
312924

How December really feels in Laem Sing

Once humidity and wind are folded in, December averages 14 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
14
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.

Laem Sing weather by month

How December compares with the rest of the year at a glance. December is the 6th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°296.311.36.1
Feb29° / 25°338.211.65.7
Mar30° / 26°8515.111.94.7
Apr30° / 27°12218.812.33.8
May30° / 27°32028.212.62.8
Jun30° / 27°38428.412.72.8
Jul29° / 27°36929.612.72.8
Aug29° / 27°32829.212.42.9
Sep29° / 26°36328.812.12.9
Oct30° / 26°2382311.73.5
Nov30° / 25°46811.45.2
Dec30° / 24°163.211.36.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25545
35545
45545
55644
65644
75644
85743
95842
105842
115941
126040
136139
146238
156238
166337
176337
186436
196535
206535
216634
226634
236634
246733
256634
266634
276733
286733
296733
306733
316733

Chance of precipitation in December

Any precipitation

Laem Sing gets around 16 mm of rain over 3.2 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 11% and peaks near 16% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
116
215
315
415
514
614
714
813
913
1013
1112
1212
1311
1411
1510
1610
1710
189
199
208
218
228
237
247
257
267
277
288
298
309
3110

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 32% of days. Sticky, muggy-or-worse air turns up on roughly 83% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1016263928
2017273927
3017283826
4018283825
5018293724
6018303723
7019313623
8019323622
90110323521
100110333521
110111333420
120212333419
130213333319
140214323319
150314323219
161315313119
171416313019
181416303019
191417302919
201517302819
211518302818
221518302718
231618302718
241618302717
251618312817
261618312817
271618302817
281517312917
291517313017
301516313117
311415313217

Wind in December

Winds average 11 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3010calm
3110calm

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 6:22 AM to 6:37 AM, and sunset from 5:41 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:225:41
211.36:225:41
311.36:235:41
411.36:235:42
511.36:245:42
611.36:255:42
711.36:255:43
811.36:265:43
911.36:265:43
1011.36:275:44
1111.36:275:44
1211.36:285:44
1311.36:285:45
1411.36:295:45
1511.36:295:46
1611.36:305:46
1711.36:305:46
1811.36:315:47
1911.36:315:47
2011.36:325:48
2111.36:325:48
2211.36:335:49
2311.36:335:49
2411.36:345:50
2511.36:345:50
2611.36:355:51
2711.36:355:51
2811.36:355:52
2911.36:365:52
3011.36:365:53
3111.36:375:53

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.02 kWh/m².

For context, solar energy here swings from a low near 4.32 kWh/m² to a high of 5.89 kWh/m² in April across the year — December's 5.02 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in December

Hazard calendar for Laem Sing

In seasonPeak

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

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

Laem Sing'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 Laem Sing?

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

6.2
Sightseeing
1st-best month of the year
8.1
Beach & pool
1st-best month of the year

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

What to pack for Laem Sing in December

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

In December, Laem Sing sees daytime highs around 30°C and nights near 24°C. Pack light clothes. Worth having: sun protection. About 3 days see rain.

light clothessun protection

Sea temperature near Laem Sing 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 13 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 Laem Sing 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 Laem Sing peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 14Dec 13UV 9
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Laem Sing 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 Laem Sing is worst in February — around 32 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (August, 14 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateFeb 1631 µg/m³Aug 1714 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb32Moderate
Mar27Moderate
Apr22Moderate
May16Moderate
Jun14Moderate
Jul15Moderate
Aug14Moderate
Sep15Moderate
Oct18Moderate
Nov16Moderate
Dec16Moderate
Location & terrain

Where is Laem Sing?

Laem Sing sits at 12.5°N, 102.1°E, 6 m above sea level, in Thailand. The nearest listed city is Chanthaburi, 15 km away.

Topography around Laem Sing

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

Within 3 km, the terrain around Laem Sing has only modest variations in elevation — a maximum elevation change of 173 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 911 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,596 m.

The land around Laem Sing is covered by water (58%) within 3 km, water (55%) and trees (22%) within 16 km, and trees (54%) and water (37%) within 80 km.

3 km
173 m
16 km
911 m
80 km
1,596 m
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
December weather nearby: Chanthaburi 15 km · Tha Mai 17 km · Khao Saming 42 km · Laem Ngop 49 km · Ko Chang 54 km · Trat 55 km · Klaeng 57 km · Ban Phe 71 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 Laem Sing (12.4816°, 102.0738°, elevation 6 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).