Bang Saphan weather in December

In December, Bang Saphan sees average daytime highs of 28°C and overnight lows near 24°C, with 42 mm of rain across 5.8 wet days and about 11.4 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 41% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 24 min at the start of December to 11 h 24 min by month's end. Set against the rest of the year, December is Bang Saphan's 4th-clearest and 3rd-windiest month. For the whole year in context, see Bang Saphan's year-round climate.

Daytime high
28°
11th warmest
Overnight low
24°
3rd coldest
Rainfall
42 mm
5.8 wet days
Daylight
11 h 18 min
6:38 AM – 5:59 PM
Cloud cover
53%
4th clearest
Wind
13 km/h
3rd windiest
Solar energy
4.9 kWh/m²
Travel score
6.8
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical December day in Bang Saphan reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, December runs on par with November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12825
22825
32825
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292823
302823
312823

How December really feels in Bang Saphan

Once humidity and wind are folded in, December averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Bang Saphan weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 23°445.711.46.9
Feb29° / 24°235.111.66.4
Mar30° / 25°7310.811.95.2
Apr31° / 26°941612.23.9
May31° / 26°16924.512.53.0
Jun30° / 26°15923.112.63.2
Jul30° / 25°18325.112.63.2
Aug30° / 25°1802512.43.2
Sep29° / 25°20425.712.13.1
Oct29° / 25°23825.511.73.5
Nov29° / 25°10612.411.55.2
Dec28° / 24°425.811.46.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25446
35446
45446
55446
65446
75446
85446
95446
105545
115545
125644
135644
145644
155644
165743
175743
185644
195743
205743
215941
225941
235941
245941
256040
266040
276139
286139
296139
306238
316238

Chance of precipitation in December

Any precipitation

Bang Saphan gets around 42 mm of rain over 5.8 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 19% and peaks near 30% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
130
229
328
428
527
626
726
825
924
1023
1122
1221
1319
1418
1517
1616
1716
1815
1914
2014
2113
2213
2313
2413
2513
2613
2713
2813
2914
3014
3115

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 91% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
103185524
203195523
303205522
403215521
503215620
603225619
704235518
804245517
904255516
1004265515
1105275414
1205275513
1306285412
1407295212
1507295311
1608305210
1709305110
1811031499
1911131489
2011132479
2111233468
2211233468
2311334457
2411334457
2511335456
2611335456
2711235466
2811234475
2911134485
3011134495
3111033515

Wind in December

Winds average 13 km/h in December.

Across December, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712calm
2812calm
2912calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 24 min at the start of December to 11 h 24 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 6:30 AM to 6:45 AM, and sunset from 5:53 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:305:53
211.46:315:54
311.46:315:54
411.46:325:54
511.46:325:54
611.46:335:55
711.46:335:55
811.46:345:55
911.46:345:56
1011.46:355:56
1111.46:355:57
1211.46:365:57
1311.46:365:57
1411.36:375:58
1511.36:375:58
1611.36:385:59
1711.36:385:59
1811.36:395:59
1911.36:396:00
2011.36:406:00
2111.36:406:01
2211.36:416:01
2311.36:416:02
2411.36:426:02
2511.36:426:03
2611.36:426:03
2711.36:436:04
2811.36:436:04
2911.36:446:05
3011.36:446:05
3111.46:456:06

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.9 kWh/m².

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 6.12 kWh/m² in April across the year — December's 4.9 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Bang Saphan

In seasonPeak

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

Bang Saphan sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Bang Saphan's rainy season runs May–October, when most of the year's rain falls.

Cyclone
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is December a good time to visit Bang Saphan?

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

6.8
Sightseeing
2nd-best month of the year
7.6
Beach & pool
3rd-best month of the year

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

What to pack for Bang Saphan in December

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

In December, Bang Saphan sees daytime highs around 28°C and nights near 24°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Bang Saphan 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 16 km away) is warmest in May at about 30°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
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Bang Saphan 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 Bang Saphan peaks around August 18 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 18UV 14Nov 23UV 9
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Bang Saphan 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 Bang Saphan is worst in January — around 21 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (September, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateJan 2121 µg/m³Sep 1611 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb20Moderate
Mar19Moderate
Apr19Moderate
May14Moderate
Jun12Moderate
Jul14Moderate
Aug12Good
Sep11Good
Oct11Good
Nov15Moderate
Dec17Moderate
Location & terrain

Where is Bang Saphan?

Bang Saphan sits at 11.2°N, 99.5°E, 12 m above sea level, in Thailand. The nearest listed city is Prachuap Khiri Khan, 74 km away.

Kui BuriSam Roi YotKo TaoPran BuriLang SuanHua Hin

Topography around Bang Saphan

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

Within 3 km, the terrain around Bang Saphan has only modest variations in elevation — a maximum elevation change of 130 m around an average of 12 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 441 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,215 m.

The land around Bang Saphan is covered by trees (62%) within 3 km, trees (51%) and water (43%) within 16 km, and trees (62%) and water (36%) within 80 km.

3 km
130 m
16 km
441 m
80 km
1,215 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Prachuap Khiri Khan 74 km · Chumphon 88 km · Kui Buri 104 km · Sam Roi Yot 124 km · Ko Tao 130 km · Pran Buri 137 km · Lang Suan 149 km · Hua Hin 159 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 Bang Saphan (11.2126°, 99.5117°, elevation 12 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).