Ban Ang Sila weather in December

In December, Ban Ang Sila sees average daytime highs of 31°C and overnight lows near 23°C, with 12 mm of rain across 2.7 wet days and about 11.2 hours of daylight. It is the 10th-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 38% 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 12 min by month's end. Set against the rest of the year, December is Ban Ang Sila's 4th-clearest and 4th-windiest month. For the whole year in context, see Ban Ang Sila's year-round climate.

Daytime high
31°
10th warmest
Overnight low
23°
1st coldest
Rainfall
12 mm
2.7 wet days
Daylight
11 h 12 min
6:36 AM – 5:49 PM
Cloud cover
52%
4th clearest
Wind
10 km/h
4th windiest
Solar energy
4.86 kWh/m²
Travel score
5.0
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 Ban Ang Sila 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 29°C and 34°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)
13224
23224
33224
43224
53224
63224
73223
83223
93223
103223
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213123
223123
233122
243122
253122
263122
273122
283122
293222
303222
313222

How December really feels in Ban Ang Sila

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.

Ban Ang Sila weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°224.711.34.8
Feb32° / 24°235.111.64.3
Mar33° / 26°5810.711.93.5
Apr34° / 27°9014.112.32.8
May33° / 27°14521.312.62.4
Jun33° / 27°12320.912.82.6
Jul32° / 27°13322.512.72.7
Aug32° / 27°13623.312.42.7
Sep31° / 26°23225.112.12.5
Oct31° / 25°19521.711.73.1
Nov32° / 24°447.111.44.3
Dec31° / 23°122.711.25.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 22% of December, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25644
35644
45644
55644
65644
75644
85644
95743
105743
115842
125941
135941
146040
156040
166139
176139
186139
196139
206238
216238
226238
236238
246337
256337
266337
276436
286436
296436
306436
316436

Chance of precipitation in December

Any precipitation

Ban Ang Sila gets around 12 mm of rain over 2.7 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 9% 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
513
613
712
812
911
1011
1110
129
139
148
158
167
177
187
197
206
216
226
236
246
256
266
276
286
297
307
318

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 31% of days. Sticky, muggy-or-worse air turns up on roughly 64% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11415343016
21416343015
31516352914
41517352913
51518352812
61619352811
71619352811
81620352710
9172135279
10172235269
11182235268
12192334267
13292334267
142102333266
152112332266
163112331266
173122430265
184122429265
194132428265
205132427265
215142426264
226142426264
236142525264
246142525254
256142526254
266142526254
276142527253
286142527254
296132528254
305132528254
315122528254

Wind in December

Winds average 10 km/h in December.

Across December, daily wind ranges from about 9 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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
309calm
319calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 18 min at the start of December to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:28 AM to 6:43 AM, and sunset from 5:44 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:285:44
211.36:285:44
311.36:295:45
411.36:305:45
511.36:305:45
611.26:315:45
711.26:315:46
811.26:325:46
911.26:325:46
1011.26:335:47
1111.26:335:47
1211.26:345:47
1311.26:345:48
1411.26:355:48
1511.26:355:49
1611.26:365:49
1711.26:365:49
1811.26:375:50
1911.26:375:50
2011.26:385:51
2111.26:385:51
2211.26:395:52
2311.26:395:52
2411.26:405:53
2511.26:405:53
2611.26:415:54
2711.26:415:54
2811.26:425:55
2911.26:425:55
3011.26:425:56
3111.26:435:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.86 kWh/m².

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 5.98 kWh/m² in April across the year — December's 4.86 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Ban Ang Sila

In seasonPeak

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

Ban Ang Sila sits in the Pacific typhoon belt; the season peaks July–October.

Ban Ang Sila's rainy season runs May–October, 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 Ban Ang Sila?

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

5.0
Sightseeing
1st-best month of the year
7.7
Beach & pool
1st-best month of the year

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

What to pack for Ban Ang Sila in December

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

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

light clothessun protection

Sea temperature near Ban Ang Sila 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 offshore is warmest in May at about 31°C and coldest in January near 27°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
Jan27Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Ban Ang Sila 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 Ban Ang Sila peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 17UV 9
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct10Very high
Nov9Very high
Dec9Very high

Air quality in Ban Ang Sila 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 Ban Ang Sila is worst in January — around 67 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (June, 34 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorPoorPoorJan 2366 µg/m³Jun 2034 µg/m³
PM2.5 (µg/m³)Level
Jan67Unhealthy
Feb65Unhealthy
Mar53Poor
Apr47Poor
May40Poor
Jun34Moderate
Jul36Poor
Aug36Poor
Sep47Poor
Oct57Unhealthy
Nov53Poor
Dec47Poor
Location & terrain

Where is Ban Ang Sila?

Ban Ang Sila sits at 13.3°N, 100.9°E, 8 m above sea level, in Thailand. The nearest listed city is Chon Buri, 6.0 km away.

Topography around Ban Ang Sila

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

Within 3 km, the terrain around Ban Ang Sila has only modest variations in elevation — a maximum elevation change of 21 m around an average of 3 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 891 m; within 80 km, large variations in elevation — a maximum elevation change of 874 m.

The land around Ban Ang Sila is covered by water (60%) and artificial surfaces (25%) within 3 km, water (59%) within 16 km, and water (33%) and trees (32%) within 80 km.

3 km
21 m
16 km
891 m
80 km
874 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
December weather nearby: Chon Buri 6.0 km · Si Racha 19 km · Ban Bueng 20 km · Phan Thong 23 km · Bang Pakong 24 km · Bang Bo District 30 km · Phanat Nikhom 30 km · Ban Talat Bueng 31 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 Ban Ang Sila (13.3396°, 100.9296°, elevation 8 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).