Nong Khiaw weather in December

In December, Nong Khiaw sees average daytime highs of 25°C and overnight lows near 13°C, with 18 mm of rain across 3 wet days and about 10.8 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 52% of the time in December, and the air most often feels comfortable.

Daylight stretches from about 10 h 48 min at the start of December to 10 h 48 min by month's end. Set against the rest of the year, December is Nong Khiaw's 4th-clearest and 7th-windiest month. For the whole year in context, see Nong Khiaw's year-round climate.

Daytime high
25°
12th warmest
Overnight low
13°
2nd coldest
Rainfall
18 mm
3 wet days
Daylight
10 h 48 min
6:43 AM – 5:28 PM
Cloud cover
42%
4th clearest
Wind
4 km/h
7th windiest
Solar energy
3.92 kWh/m²
Travel score
8.3
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 25°C through the month.

A typical December day in Nong Khiaw reaches about 25°C in the afternoon and slips back to 13°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 28°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12615
22615
32615
42515
52515
62515
72514
82514
92514
102514
112514
122514
132514
142514
152513
162513
172413
182413
192413
202413
212413
222413
232413
242413
252413
262413
272413
282413
292413
302513
312513

How December really feels in Nong Khiaw

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.

Nong Khiaw 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
Jan25° / 13°192.910.98.2
Feb28° / 14°101.711.37.4
Mar31° / 17°335.911.95.3
Apr32° / 20°8111.412.54.1
May32° / 23°14419133.3
Jun31° / 24°17921.313.23.0
Jul30° / 24°28325.413.13.0
Aug30° / 23°29926.212.73.1
Sep30° / 22°18019.912.13.9
Oct29° / 20°669.811.55.7
Nov27° / 17°233.7117.7
Dec25° / 13°18310.88.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% 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 30%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26634
36535
46535
56436
66436
76436
86436
96436
106535
116535
126634
136832
146832
157030
167129
177327
187327
197525
207525
217624
227624
237624
247624
257624
267525
277525
287426
297426
307327
317327

Chance of precipitation in December

Any precipitation

Nong Khiaw gets around 18 mm of rain over 3 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 10% and peaks near 14% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
114
214
314
414
513
613
713
813
912
1012
1111
1210
1310
149
158
168
177
187
197
207
217
227
237
247
257
267
277
288
298
309
319

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the comfortable band about 34% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1142838201
2142937191
3153037181
4153136171
5163235161
6163335151
7173434141
8183434131
9193534120
10203534110
11223534100
1223343390
1325343380
1426343370
1528343260
1629333260
1730333150
1831333150
1932333040
2033333040
2134333030
2235332930
2335342920
2435352820
2535362820
2634372720
2734382720
2833392720
2931412620
3030422620
3129432620

Wind in December

Winds average 4 km/h in December.

Across December, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 48 min at the start of December to 10 h 48 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 6:34 AM to 6:50 AM, and sunset from 5:25 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.86:345:25
210.86:355:25
310.86:355:25
410.86:365:25
510.86:375:25
610.86:375:25
710.86:385:26
810.86:385:26
910.86:395:26
1010.86:405:26
1110.86:405:27
1210.86:415:27
1310.86:415:27
1410.86:425:28
1510.86:425:28
1610.86:435:28
1710.86:435:29
1810.86:445:29
1910.86:455:30
2010.86:455:30
2110.86:465:31
2210.86:465:31
2310.86:465:32
2410.86:475:32
2510.86:475:33
2610.86:485:33
2710.86:485:34
2810.86:495:34
2910.86:495:35
3010.86:495:35
3110.86:505:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.92 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.92 kWh/m² to a high of 5.82 kWh/m² in April across the year — December's 3.92 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.8Moderate
73.8Moderate
83.8Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.9Moderate
164.0Moderate
174.0Moderate
184.0Bright
194.0Bright
204.0Bright
214.0Bright
224.0Bright
234.0Bright
244.0Bright
254.0Bright
264.0Bright
274.0Bright
284.0Bright
294.0Bright
304.0Moderate
314.0Moderate
Planning a trip in December

Hazard calendar for Nong Khiaw

In seasonPeak

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

Nong Khiaw'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 Nong Khiaw?

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

8.3
Sightseeing
1st-best month of the year
7.4
Beach & pool
5th-best month of the year

December is one of the better times to visit Nong Khiaw for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Nong Khiaw in December

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

In December, Nong Khiaw sees daytime highs around 25°C and nights near 13°C. Worth packing: light clothes. About 3 days see rain.

light clothes

UV index in Nong Khiaw 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 Nong Khiaw peaks around June 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJun 20UV 13Dec 18UV 7
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar9Very high
Apr9Very high
May11Extreme
Jun14Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7High

Air quality in Nong Khiaw 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 Nong Khiaw is worst in April — around 497 µg/m³ PM2.5 (very unhealthy), about 67.1× the cleanest month (September, 7 µg/m³).

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

0306090120150180210240270300330360390420450480JanFebMarAprMayJunJulAugSepOctNovDecModerateVery unhealthyGoodApr 14456 µg/m³Sep 127 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb29Moderate
Mar231Very unhealthy
Apr497Very unhealthy
May49Poor
Jun9Good
Jul8Good
Aug8Good
Sep7Good
Oct8Good
Nov9Good
Dec10Good
Location & terrain

Where is Nong Khiaw?

Nong Khiaw sits at 20.6°N, 102.6°E, 0 m above sea level, in Laos. The nearest listed city is Muang Xay, 67 km away.

Muang XayLuang PrabangDien Bien PhuLuang NamthaMuang PhônsavanThị Trấn Thuận ChâuXam NuaSơn La

Topography around Nong Khiaw

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

Within 3 km, the terrain around Nong Khiaw has very significant variations in elevation — a maximum elevation change of 1,215 m around an average of 609 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,310 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,987 m.

The land around Nong Khiaw is covered by trees (81%) within 3 km, trees (86%) within 16 km, and trees (88%) within 80 km.

3 km
1,215 m
16 km
1,310 m
80 km
1,987 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Muang Xay 67 km · Luang Prabang 89 km · Dien Bien Phu 100 km · Luang Namtha 133 km · Muang Phônsavan 139 km · Thị Trấn Thuận Châu 148 km · Xam Nua 150 km · Sơn La 160 km

Laos travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C / E / F
230 V · 50 Hz
Prices
≈ 23% of US
price level, 2025
GDP per capita
$2,325
2025
Happiness
5.5 / 10
World Happiness, 2025
Safe drinking water
35%
of population, 2024
Road deaths
17.9
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 461
Religion
Buddhist 65%none 31%other/not stated 2%Christian 2%

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 Nong Khiaw (20.5708°, 102.6112°, elevation 0 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).