Phanom Sarakham weather in December

In December, Phanom Sarakham sees average daytime highs of 32°C and overnight lows near 22°C, with 7 mm of rain across 1.6 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 44% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 h 12 min at the start of December to 11 h 12 min by month's end. Set against the rest of the year, December is Phanom Sarakham's 4th-clearest and 1st-windiest month. For the whole year in context, see Phanom Sarakham's year-round climate.

Daytime high
32°
12th warmest
Overnight low
22°
2nd coldest
Rainfall
7 mm
1.6 wet days
Daylight
11 h 12 min
6:35 AM – 5:47 PM
Cloud cover
49%
4th clearest
Wind
9 km/h
1st windiest
Solar energy
4.82 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 32°C through the month.

A typical December day in Phanom Sarakham reaches about 32°C in the afternoon and slips back to 22°C overnight — a 10°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)
13223
23223
33223
43223
53223
63223
73223
83223
93222
103222
113222
123222
133222
143222
153222
163222
173222
183222
193222
203222
213221
223221
233221
243221
253221
263221
273221
283221
293221
303221
313221

How December really feels in Phanom Sarakham

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.

Phanom Sarakham 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°153.411.34.7
Feb34° / 23°184.111.53.8
Mar35° / 25°559.911.92.8
Apr35° / 26°8614.812.32.1
May34° / 26°19624.312.61.9
Jun33° / 26°20024.212.82.1
Jul33° / 26°20225.712.72.2
Aug32° / 26°22627.212.52.2
Sep32° / 25°28826.912.12.2
Oct32° / 25°16318.911.73.1
Nov32° / 24°305.111.44.2
Dec32° / 22°71.611.25.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% 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 35%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
36040
46040
55941
65941
75941
85941
96040
106040
116040
126139
136139
146238
156436
166436
176634
186634
196733
206832
216931
227030
236931
247030
256931
267030
277030
287030
297030
307030
316931

Chance of precipitation in December

Any precipitation

Phanom Sarakham gets around 7 mm of rain over 1.6 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 5% and peaks near 8% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
18
28
38
47
57
67
77
86
96
106
115
125
135
144
154
164
174
184
194
204
214
224
234
244
254
264
274
284
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 (%)
11417373110
2141838309
3141838308
4151938298
5152037297
6152137296
7162237286
8162337285
9172436275
10172437274
11182535264
12292535254
132102634253
142112633253
153112633243
163122632243
174132631242
184132630242
195142630242
205142629242
215152629242
226152629232
236152629232
246152729221
256152729221
266152730211
276142730211
286142731212
296132732212
305132732212
315122832212

Wind in December

Winds average 9 km/h in December, the windiest month of the year.

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
298calm
308calm
318calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 12 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 grow by about 0 minutes over December. Sunrise moves from 6:27 AM to 6:42 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)
111.26:275:42
211.26:285:42
311.26:285:42
411.26:295:42
511.26:295:43
611.26:305:43
711.26:305:43
811.26:315:44
911.26:315:44
1011.26:325:44
1111.26:325:45
1211.26:335:45
1311.26:335:45
1411.26:345:46
1511.26:345:46
1611.26:355:47
1711.26:355:47
1811.26:365:47
1911.26:365:48
2011.26:375:48
2111.26:375:49
2211.26:385:49
2311.26:385:50
2411.26:395:50
2511.26:395:51
2611.26:405:51
2711.26:405:52
2811.26:415:52
2911.26:415:53
3011.26:415:53
3111.26:425:54

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.82 kWh/m².

For context, solar energy here swings from a low near 4.38 kWh/m² to a high of 5.89 kWh/m² in April across the year — December's 4.82 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
194.8Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Phanom Sarakham

In seasonPeak

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

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

Phanom Sarakham'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 Phanom Sarakham?

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

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

What to pack for Phanom Sarakham in December

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

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

light clothessun protection

Sea temperature near Phanom Sarakham 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 66 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 Phanom Sarakham 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 Phanom Sarakham 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 Phanom Sarakham 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 Phanom Sarakham 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 Phanom Sarakham?

Phanom Sarakham sits at 13.7°N, 101.3°E, 9 m above sea level, in Thailand. The nearest listed city is Si Mahosot, 17 km away.

Topography around Phanom Sarakham

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

Within 3 km, the terrain around Phanom Sarakham has only modest variations in elevation — a maximum elevation change of 26 m around an average of 8 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 245 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,426 m.

The land around Phanom Sarakham is covered by cropland (38%) and trees (34%) within 3 km, cropland (45%) and trees (32%) within 16 km, and trees (52%) and cropland (28%) within 80 km.

3 km
26 m
16 km
245 m
80 km
1,426 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Si Mahosot 17 km · Si Maha Phot 30 km · Chachoengsao 31 km · Ban Sang 31 km · Prachin Buri 34 km · Prachin Buri Town 34 km · Thambon Na Mueang 34 km · Phanat Nikhom 38 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 Phanom Sarakham (13.7487°, 101.3489°, elevation 9 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).