Sawankhalok weather in December

In December, Sawankhalok sees average daytime highs of 32°C and overnight lows near 20°C, with 13 mm of rain across 2 wet days and about 11 hours of daylight. It is the 12th-warmest and 11th-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 63% of the time in December, and the air most often feels muggy.

Daylight stretches from about 11 hours at the start of December to 11 hours by month's end. Set against the rest of the year, December is Sawankhalok's 4th-clearest and 8th-windiest month. For the whole year in context, see Sawankhalok's year-round climate.

Daytime high
32°
12th warmest
Overnight low
20°
2nd coldest
Rainfall
13 mm
2 wet days
Daylight
11 hours
6:48 AM – 5:46 PM
Cloud cover
34%
4th clearest
Wind
5 km/h
8th windiest
Solar energy
4.52 kWh/m²
Travel score
5.3
out of 10

Sawankhalok is town in Sukhothai province, Thailand.

Founded
1937

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 Sawankhalok reaches about 32°C in the afternoon and slips back to 20°C overnight — a 12°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 about 1°C cooler than November and about 1°C cooler than January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13221
23221
33221
43221
53221
63221
73221
83221
93221
103220
113220
123220
133220
143220
153220
163120
173120
183119
193119
203119
213119
223119
233119
243119
253119
263119
273119
283119
293119
303119
313119

How December really feels in Sawankhalok

Once humidity and wind are folded in, December averages 23 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
23
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.

Sawankhalok weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 19°162.311.14.9
Feb35° / 21°101.111.43.3
Mar38° / 24°313.711.91.5
Apr39° / 27°638.912.40.7
May36° / 27°2011912.81.4
Jun35° / 27°18020.4131.9
Jul34° / 27°18421.312.92.2
Aug33° / 26°23122.812.62.3
Sep33° / 26°22422.712.12.2
Oct33° / 25°13114.811.63.1
Nov33° / 23°274.111.24.3
Dec32° / 20°132115.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 17% of December, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17624
27624
37624
47624
57624
67624
77624
87723
97723
107723
117822
127822
137921
148020
158020
168218
178218
188218
198317
208317
218416
228416
238416
248416
258416
268416
278317
288317
298317
308218
318218

Chance of precipitation in December

Any precipitation

Sawankhalok gets around 13 mm of rain over 2 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 6% and peaks near 10% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
110
210
310
410
510
69
79
88
98
107
117
126
135
145
154
164
174
184
194
204
214
224
235
245
255
265
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 35% of days. Sticky, muggy-or-worse air turns up on roughly 58% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1151736347
2151836337
3161935336
4171935326
5172035315
6182135305
7182136285
8192236274
91102236264
101112337254
112122337233
122132337223
132142337212
142152437202
153162436192
163172436182
173182536171
184192535161
194202535151
205202535141
215202634141
226212634131
236212634131
246202734120
256202734120
267202834120
277192834120
286182934120
296172935120
306162935130
315163036131

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

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

Days grow by about 0 minutes over December. Sunrise moves from 6:39 AM to 6:54 AM, and sunset from 5:42 PM to 5:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:395:42
211.06:405:42
311.06:405:42
411.06:415:42
511.06:425:42
611.06:425:43
711.06:435:43
811.06:435:43
911.06:445:43
1011.06:445:44
1111.06:455:44
1211.06:465:44
1311.06:465:45
1411.06:475:45
1511.06:475:46
1611.06:485:46
1711.06:485:46
1811.06:495:47
1911.06:495:47
2011.06:505:48
2111.06:505:48
2211.06:515:49
2311.06:515:49
2411.06:525:50
2511.06:525:50
2611.06:535:51
2711.06:535:51
2811.06:535:52
2911.06:545:52
3011.06:545:53
3111.06:545:53

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.52 kWh/m².

For context, solar energy here swings from a low near 4.06 kWh/m² to a high of 6.39 kWh/m² in April across the year — December's 4.52 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
314.6Bright
Planning a trip in December

Hazard calendar for Sawankhalok

In seasonPeak

None of Sawankhalok's seasonal hazards are active in December. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Sawankhalok's monsoon runs May–October, when most of the year's rain falls.

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

Is December a good time to visit Sawankhalok?

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

5.3
Sightseeing
1st-best month of the year
8.1
Beach & pool
1st-best month of the year

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

What to pack for Sawankhalok in December

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

In December, Sawankhalok sees daytime highs around 32°C and nights near 20°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Sawankhalok in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sawankhalok peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 12UV 13Dec 11UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar10Extreme
Apr10Extreme
May12Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7Very high

Air quality in Sawankhalok 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 Sawankhalok is worst in March — around 58 µg/m³ PM2.5 (unhealthy), about 2.8× the cleanest month (June, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorPoorModeratePoorMar 1556 µg/m³Jun 2221 µg/m³
PM2.5 (µg/m³)Level
Jan43Poor
Feb50Poor
Mar58Unhealthy
Apr47Poor
May29Moderate
Jun21Moderate
Jul22Moderate
Aug23Moderate
Sep26Moderate
Oct31Moderate
Nov33Moderate
Dec37Poor
Location & terrain

Where is Sawankhalok?

Sawankhalok sits at 17.3°N, 99.8°E, 67 m above sea level, in Thailand. The nearest listed city is Si Satchanalai, 24 km away.

Topography around Sawankhalok

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

Within 3 km, the terrain around Sawankhalok has only modest variations in elevation — a maximum elevation change of 27 m around an average of 61 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 253 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,205 m.

The land around Sawankhalok is covered by cropland (51%) and trees (32%) within 3 km, cropland (74%) and trees (22%) within 16 km, and trees (53%) and cropland (44%) within 80 km.

3 km
27 m
16 km
253 m
80 km
1,205 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Si Satchanalai 24 km · Sukhothai 34 km · Ban Na 35 km · Uttaradit 44 km · Bang Rakam 69 km · Phitsanulok 71 km · Ban Aranyik 73 km · Thoen 73 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 Sawankhalok (17.316°, 99.8319°, elevation 67 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. 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).