Ban Chalong weather in December

In December, Ban Chalong sees average daytime highs of 28°C and overnight lows near 26°C, with 120 mm of rain across 13.6 wet days and about 11.6 hours of daylight. It is the 8th-warmest and 9th-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 22% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of December to 11 h 30 min by month's end. Set against the rest of the year, December is Ban Chalong's 5th-clearest and 1st-windiest month. For the whole year in context, see Ban Chalong's year-round climate.

Daytime high
28°
8th warmest
Overnight low
26°
4th coldest
Rainfall
120 mm
13.6 wet days
Daylight
11 h 30 min
6:36 AM – 6:09 PM
Cloud cover
68%
5th clearest
Wind
20 km/h
1st windiest
Solar energy
5.04 kWh/m²
Travel score
5.7
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 Ban Chalong reaches about 28°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, December runs on par with November and on par with January.

24°26°28°30°32°151015202531
Avg high (°C)Avg low (°C)
12826
22826
32826
42826
52826
62826
72826
82826
92826
102826
112826
122826
132826
142826
152826
162826
172826
182826
192826
202826
212826
222826
232826
242826
252826
262826
272826
282826
292826
302826
312826

How December really feels in Ban Chalong

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.

Ban Chalong weather by month

How December compares with the rest of the year at a glance. December is the 8th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 26°55811.66.5
Feb28° / 27°244.711.76.6
Mar29° / 27°831111.95.6
Apr29° / 27°12218.112.24.4
May29° / 27°21223.612.43.6
Jun29° / 27°17920.812.43.9
Jul28° / 27°17420.612.44.1
Aug28° / 27°19520.812.34.2
Sep28° / 26°24623.6124.0
Oct28° / 26°28527.611.83.7
Nov28° / 26°23023.211.64.2
Dec28° / 26°12013.611.65.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23268
33466
43466
53466
63466
73565
83565
93565
103565
113565
123664
133664
143664
153664
163664
173664
183763
193763
203862
213862
223862
233961
243961
253961
263961
274060
284060
294060
304258
314258

Chance of precipitation in December

Any precipitation

Ban Chalong gets around 120 mm of rain over 13.6 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 44% and peaks near 61% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
161
260
359
457
556
655
754
853
952
1051
1150
1249
1348
1447
1546
1645
1743
1842
1941
2039
2138
2237
2335
2434
2533
2633
2732
2832
2932
3031
3131

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 86% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1028018
2028018
3028117
4028117
5028216
6028315
7028315
8028414
9028513
10038512
11038512
12038611
13038710
1403889
1503889
1604888
1704897
1804897
1904906
2005896
2105905
2206895
2306895
2407894
2507894
2608884
2708884
2818874
2918874
3018874
3118874

Wind in December

Winds average 20 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 19 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1020light breeze
1120light breeze
1220light breeze
1320light breeze
1420light breeze
1520light breeze
1620light breeze
1720breezy
1820breezy
1920breezy
2020breezy
2120breezy
2220breezy
2320breezy
2420breezy
2520breezy
2620breezy
2720breezy
2820breezy
2920breezy
3020breezy
3120breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 36 min at the start of December to 11 h 30 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 6:29 AM to 6:43 AM, and sunset from 6:04 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:296:04
211.66:306:04
311.66:306:04
411.66:316:05
511.66:316:05
611.66:326:05
711.66:326:06
811.66:326:06
911.66:336:06
1011.66:336:07
1111.66:346:07
1211.66:346:08
1311.56:356:08
1411.56:356:08
1511.56:366:09
1611.56:366:09
1711.56:376:10
1811.56:376:10
1911.56:386:11
2011.56:386:11
2111.56:396:11
2211.56:396:12
2311.56:406:12
2411.56:406:13
2511.56:416:13
2611.56:416:14
2711.56:426:14
2811.56:426:15
2911.56:426:15
3011.56:436:16
3111.56:436:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 5.04 kWh/m².

For context, solar energy here swings from a low near 4.81 kWh/m² to a high of 6.5 kWh/m² in March across the year — December's 5.04 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in December

Hazard calendar for Ban Chalong

In seasonPeak

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

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

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

Is December a good time to visit Ban Chalong?

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

5.7
Sightseeing
3rd-best month of the year
6.1
Beach & pool
4th-best month of the year

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

What to pack for Ban Chalong in December

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

In December, Ban Chalong sees daytime highs around 28°C and nights near 26°C. Pack light clothes. Worth having: rain gear and sun protection. About 14 days see rain.

light clothesrain gearsun protection

Sea temperature near Ban Chalong in December

The nearest coast averages about 29°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 24 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
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Ban Chalong in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 10 (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 Chalong peaks around August 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeAug 23UV 13Nov 23UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Extreme
Location & terrain

Where is Ban Chalong?

Ban Chalong sits at 7.8°N, 98.3°E, 13 m above sea level, in Thailand. The nearest listed city is Ban Talat Nua, 7.0 km away.

Topography around Ban Chalong

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

Within 3 km, the terrain around Ban Chalong has significant variations in elevation — a maximum elevation change of 353 m around an average of 58 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 536 m; within 80 km, large variations in elevation — a maximum elevation change of 994 m.

The land around Ban Chalong is covered by trees (50%) and artificial surfaces (29%) within 3 km, water (65%) and trees (23%) within 16 km, and water (78%) within 80 km.

3 km
353 m
16 km
536 m
80 km
994 m
treesgrasslandartificial surfacesbare terrainwatermangroves
December weather nearby: Ban Talat Nua 7.0 km · Wichit 7.0 km · Ban Talat Yai 8.0 km · Kathu 8.0 km · Phuket 8.0 km · Ban Ratsada 10 km · Ban Ko Sire 11 km · Ban Kamala 14 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 Chalong (7.8447°, 98.339°, elevation 13 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).