Phanat Nikhom weather in December

In December, Phanat Nikhom sees average daytime highs of 32°C and overnight lows near 22°C, with 8 mm of rain across 1.9 wet days and about 11.2 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 43% 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 Phanat Nikhom's 4th-clearest and 1st-windiest month. For the whole year in context, see Phanat Nikhom's year-round climate.

Daytime high
32°
12th warmest
Overnight low
22°
2nd coldest
Rainfall
8 mm
1.9 wet days
Daylight
11 h 12 min
6:35 AM – 5:48 PM
Cloud cover
50%
4th clearest
Wind
10 km/h
1st windiest
Solar energy
4.84 kWh/m²
Travel score
5.1
out of 10

Phanat Nikhom is town in Chon Buri province, Thailand.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical December day in Phanat Nikhom reaches about 32°C in the afternoon and slips back to 22°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 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)
13223
23223
33223
43223
53223
63223
73223
83223
93223
103223
113222
123222
133122
143122
153122
163122
173122
183122
193122
203122
213122
223122
233122
243122
253122
263121
273121
283121
293221
303221
313221

How December really feels in Phanat Nikhom

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.

Phanat Nikhom weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°17411.34.7
Feb33° / 23°214.811.63.9
Mar34° / 25°6311.611.93.0
Apr34° / 26°981612.32.4
May34° / 26°18223.512.62.1
Jun33° / 26°17522.812.82.3
Jul32° / 26°17424.412.72.4
Aug32° / 26°19625.512.42.4
Sep32° / 25°28226.512.12.3
Oct32° / 25°17819.711.73.1
Nov32° / 24°345.511.44.4
Dec32° / 22°81.911.25.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
36040
46040
56040
65941
75941
85941
95941
105941
115941
126139
136139
146139
156337
166337
176337
186436
196436
206535
216535
226634
236634
246634
256634
266733
276634
286634
296733
306733
316733

Chance of precipitation in December

Any precipitation

Phanat Nikhom gets around 8 mm of rain over 1.9 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 6% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
110
210
39
49
59
69
78
88
98
107
117
126
136
146
155
165
175
185
195
204
214
224
234
244
254
264
274
285
295
305
316

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 62% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11416363211
21517363110
3151836309
4151937309
5162037298
6162037288
7162137277
8172237277
9172337266
10182437256
11182437255
12192436245
132102536244
142102535234
153112534234
163122534233
174122533233
184132532233
195132531233
205142531232
216142530232
226142530222
236152630222
247152629212
257152630212
267142730211
277142730211
287142730212
296132831212
306132831212
315122831212

Wind in December

Winds average 10 km/h in December, the windiest month of the year.

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
19calm
29calm
39calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
289calm
299calm
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 6:27 AM to 6:42 AM, and sunset from 5:43 PM to 5:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:275:43
211.36:285:43
311.36:285:43
411.26:295:44
511.26:295:44
611.26:305:44
711.26:305:44
811.26:315:45
911.26:315:45
1011.26:325:45
1111.26:325:46
1211.26:335:46
1311.26:345:47
1411.26:345:47
1511.26:355:47
1611.26:355:48
1711.26:365:48
1811.26:365:49
1911.26:375:49
2011.26:375:50
2111.26:385:50
2211.26:385:50
2311.26:395:51
2411.26:395:51
2511.26:395:52
2611.26:405:52
2711.26:405:53
2811.26:415:53
2911.26:415:54
3011.26:425:54
3111.26:425:55

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.84 kWh/m².

For context, solar energy here swings from a low near 4.39 kWh/m² to a high of 5.83 kWh/m² in April across the year — December's 4.84 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
184.8Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in December

Hazard calendar for Phanat Nikhom

In seasonPeak

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

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

Phanat Nikhom'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 Phanat Nikhom?

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

5.1
Sightseeing
1st-best month of the year
7.8
Beach & pool
1st-best month of the year

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

What to pack for Phanat Nikhom in December

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

In December, Phanat Nikhom sees daytime highs around 32°C and nights near 22°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

Sea temperature near Phanat Nikhom 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 34 km away) 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 Phanat Nikhom 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 Phanat Nikhom peaks around August 15 at about 13 (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 highExtremeExtremeVery highAug 15UV 13Dec 13UV 9
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May9Very high
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov9Very high
Dec9Very high

Air quality in Phanat Nikhom 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 Phanat Nikhom 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 Phanat Nikhom?

Phanat Nikhom sits at 13.4°N, 101.2°E, 12 m above sea level, in Thailand. The nearest listed city is Phan Thong, 10 km away.

Topography around Phanat Nikhom

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

Within 3 km, the terrain around Phanat Nikhom has only modest variations in elevation — a maximum elevation change of 35 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 102 m; within 80 km, large variations in elevation — a maximum elevation change of 956 m.

The land around Phanat Nikhom is covered by trees (39%), artificial surfaces (23%) and cropland (22%) within 3 km, cropland (35%) and trees (31%) within 16 km, and trees (43%) and cropland (22%) within 80 km.

3 km
35 m
16 km
102 m
80 km
956 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Phan Thong 10 km · Ban Bueng 17 km · Bang Pakong 23 km · Chon Buri 24 km · Chachoengsao 30 km · Ban Ang Sila 30 km · Phanom Sarakham 38 km · Si Racha 41 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 Phanat Nikhom (13.4466°, 101.1845°, 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).