Klaeng weather in December

In December, Klaeng sees average daytime highs of 31°C and overnight lows near 23°C, with 11 mm of rain across 2.4 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 31°C through the month. The sky is clear or mostly clear about 40% of the time in December, and the air most often feels muggy.

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 Klaeng's 4th-clearest and 4th-windiest month. For the whole year in context, see Klaeng's year-round climate.

Daytime high
31°
7th warmest
Overnight low
23°
2nd coldest
Rainfall
11 mm
2.4 wet days
Daylight
11 h 18 min
6:32 AM – 5:47 PM
Cloud cover
51%
4th clearest
Wind
9 km/h
4th windiest
Solar energy
4.97 kWh/m²
Travel score
5.3
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical December day in Klaeng reaches about 31°C in the afternoon and slips back to 23°C overnight — a 9°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 on par with January.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173122
183122
193122
203122
213122
223122
233122
243122
253122
263122
273122
283122
293122
303122
313122

How December really feels in Klaeng

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.

Klaeng 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° / 22°214.711.35.1
Feb31° / 24°306.211.64.8
Mar32° / 25°7713.611.93.9
Apr32° / 26°12018.712.33.1
May31° / 26°26426.912.62.5
Jun31° / 26°31027.512.72.5
Jul30° / 26°31429.312.72.5
Aug31° / 26°30528.812.42.6
Sep30° / 25°35628.612.12.5
Oct31° / 25°23222.711.73.2
Nov31° / 24°447.611.44.6
Dec31° / 23°112.411.35.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 21% of December, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35644
45644
55644
65644
75644
85743
95842
105842
115842
126040
136040
146040
156139
166139
176238
186238
196337
206337
216436
226436
236436
246436
256436
266535
276535
286535
296535
306535
316634

Chance of precipitation in December

Any precipitation

Klaeng gets around 11 mm of rain over 2.4 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 8% and peaks near 15% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
115
214
314
413
512
612
711
811
910
1010
119
129
138
148
157
167
177
186
196
206
215
225
235
245
255
265
275
286
296
307
317

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the muggy band about 33% of days. Sticky, muggy-or-worse air turns up on roughly 71% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10312323319
20313333318
30314333317
40314343217
50415343216
60415353115
70416353114
80416363013
90417363012
100517373011
111518362910
121619362910
13161936299
14172035298
15182034297
16282133297
17292133296
182102132296
192102231296
203112230295
213112330295
223112429294
233112429294
243112529284
253112529283
263112529283
273112530283
283102530293
293102531293
30392531293
31282531304

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 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
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 6:24 AM to 6:39 AM, and sunset from 5:42 PM to 5:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:245:42
211.36:255:42
311.36:255:43
411.36:265:43
511.36:265:43
611.36:275:44
711.36:275:44
811.36:285:44
911.36:285:44
1011.36:295:45
1111.36:295:45
1211.36:305:46
1311.36:305:46
1411.36:315:46
1511.36:315:47
1611.36:325:47
1711.36:335:48
1811.26:335:48
1911.26:345:48
2011.26:345:49
2111.26:345:49
2211.26:355:50
2311.26:355:50
2411.26:365:51
2511.26:365:51
2611.26:375:52
2711.36:375:52
2811.36:385:53
2911.36:385:53
3011.36:385:54
3111.36:395:54

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.97 kWh/m².

For context, solar energy here swings from a low near 4.27 kWh/m² to a high of 5.78 kWh/m² in April across the year — December's 4.97 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
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in December

Hazard calendar for Klaeng

In seasonPeak

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

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

Klaeng'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 Klaeng?

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

5.3
Sightseeing
1st-best month of the year
7.8
Beach & pool
1st-best month of the year

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

What to pack for Klaeng in December

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

In December, Klaeng sees daytime highs around 31°C and nights near 23°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Klaeng 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 17 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
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Klaeng 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 Klaeng peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 15UV 9
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct10Extreme
Nov9Very high
Dec9Very high

Air quality in Klaeng 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 Klaeng 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 Klaeng?

Klaeng sits at 12.8°N, 101.6°E, 11 m above sea level, in Thailand. The nearest listed city is Ban Phe, 28 km away.

Topography around Klaeng

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

Within 3 km, the terrain around Klaeng has only modest variations in elevation — a maximum elevation change of 41 m around an average of 11 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 271 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,603 m.

The land around Klaeng is covered by trees (58%) within 3 km, trees (71%) within 16 km, and trees (60%) and water (28%) within 80 km.

3 km
41 m
16 km
271 m
80 km
1,603 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
December weather nearby: Ban Phe 28 km · Tha Mai 42 km · Rayong 44 km · Chanthaburi 53 km · Laem Sing 57 km · Ban Chang 65 km · Ban Talat Bueng 77 km · Sattahip 82 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 Klaeng (12.78°, 101.6491°, elevation 11 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).