Phrae weather in December

In December, Phrae sees average daytime highs of 29°C and overnight lows near 17°C, with 15 mm of rain across 1.8 wet days and about 10.9 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 62% of the time in December, and the air most often feels humid.

Daylight stretches from about 11 hours at the start of December to 10 h 54 min by month's end. Set against the rest of the year, December is Phrae's 4th-clearest and 8th-windiest month. For the whole year in context, see Phrae's year-round climate.

Daytime high
29°
12th warmest
Overnight low
17°
2nd coldest
Rainfall
15 mm
1.8 wet days
Daylight
10 h 54 min
6:48 AM – 5:43 PM
Cloud cover
35%
4th clearest
Wind
5 km/h
8th windiest
Solar energy
4.45 kWh/m²
Travel score
6.8
out of 10

Phrae is town in Phrae province, Thailand.

Air quality
Moderate
PM10 45 µg/m³ · 2019

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 29°C through the month.

A typical December day in Phrae reaches about 29°C in the afternoon and slips back to 17°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°C. Set against its neighbours, December runs about 1°C cooler than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13018
23018
33018
43018
53018
63018
72918
82918
92918
102917
112917
122917
132917
142917
152917
162917
172916
182916
192916
202916
212916
222916
232916
242916
252916
262916
272916
282916
292916
302916
312916

How December really feels in Phrae

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.

Phrae 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
Jan30° / 16°182.3116.4
Feb32° / 17°91.411.45.0
Mar35° / 21°324.411.93.3
Apr35° / 24°7110.412.42.4
May33° / 25°21521.712.82.4
Jun32° / 25°24625.613.12.4
Jul31° / 24°30028.5132.6
Aug30° / 24°36729.512.62.5
Sep31° / 24°31227.212.12.6
Oct31° / 23°12816.211.63.9
Nov31° / 20°273.911.15.6
Dec29° / 17°151.810.96.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 62% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% 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
27723
37624
47624
57525
67525
77624
87624
97624
107624
117723
127723
137921
147921
158020
168119
178317
188317
198416
208515
218515
228515
238515
248515
258515
268416
278317
288317
298218
308119
318119

Chance of precipitation in December

Any precipitation

Phrae gets around 15 mm of rain over 1.8 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 6% and peaks near 8% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
18
28
38
48
57
67
77
87
96
106
115
125
135
144
154
164
174
184
194
205
215
225
235
246
256
266
277
287
298
308
318

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the humid band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 38% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
129274516
2210284415
3211294315
4211304214
5212324113
6213334013
7213343912
8214343811
9315353710
1031636369
1131736358
1241936347
1342036336
1452136325
1562236315
1672336304
1772435294
1882535283
1992635283
2092635273
21102734263
22102734253
23112735252
24112835242
25112835232
26112736232
27112737232
28112737233
29102738233
3092638233
3192639233

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 10 h 54 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 6:40 AM to 6:55 AM, and sunset from 5:39 PM to 5:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:405:39
211.06:405:39
311.06:415:39
411.06:415:39
511.06:425:40
611.06:425:40
711.06:435:40
810.96:445:40
910.96:445:41
1010.96:455:41
1110.96:455:41
1210.96:465:42
1310.96:465:42
1410.96:475:42
1510.96:485:43
1610.96:485:43
1710.96:495:44
1810.96:495:44
1910.96:505:44
2010.96:505:45
2110.96:515:45
2210.96:515:46
2310.96:525:46
2410.96:525:47
2510.96:525:47
2610.96:535:48
2710.96:535:48
2810.96:545:49
2910.96:545:49
3010.96:545:50
3110.96:555:50

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.45 kWh/m².

For context, solar energy here swings from a low near 3.87 kWh/m² to a high of 6.31 kWh/m² in April across the year — December's 4.45 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in December

Hazard calendar for Phrae

In seasonPeak

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

Phrae's monsoon runs May–September, 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 Phrae?

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

6.8
Sightseeing
1st-best month of the year
8.7
Beach & pool
1st-best month of the year

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

What to pack for Phrae in December

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

In December, Phrae sees daytime highs around 29°C and nights near 17°C. Pack light clothes.

light clothes

UV index in Phrae 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 Phrae peaks around June 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 highJun 19UV 13Dec 16UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar9Very high
Apr10Extreme
May12Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7Very high

Air quality in Phrae 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 Phrae is worst in March — around 61 µg/m³ PM2.5 (unhealthy), about 3.4× the cleanest month (June, 18 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorPoorModerateMar 1859 µg/m³Jun 2318 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb42Poor
Mar61Unhealthy
Apr48Poor
May26Moderate
Jun18Moderate
Jul18Moderate
Aug18Moderate
Sep18Moderate
Oct19Moderate
Nov20Moderate
Dec22Moderate
Location & terrain

Where is Phrae?

Phrae sits at 18.1°N, 100.1°E, 162 m above sea level, in Thailand. The nearest listed city is Den Chai, 20 km away.

NanSawankhalokDok Kham TaiThoen

Topography around Phrae

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

Within 3 km, the terrain around Phrae has only modest variations in elevation — a maximum elevation change of 27 m around an average of 158 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 873 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,607 m.

The land around Phrae is covered by trees (38%), cropland (31%) and artificial surfaces (28%) within 3 km, trees (62%) and cropland (30%) within 16 km, and trees (81%) within 80 km.

3 km
27 m
16 km
873 m
80 km
1,607 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Den Chai 20 km · Uttaradit 58 km · Lampang 70 km · Si Satchanalai 81 km · Nan 98 km · Sawankhalok 98 km · Dok Kham Tai 114 km · Thoen 114 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 Phrae (18.1459°, 100.141°, elevation 162 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).