Savannakhet weather in December

In December, Savannakhet sees average daytime highs of 29°C and overnight lows near 18°C, with 5 mm of rain across 1.4 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 29°C through the month. The sky is clear or mostly clear about 51% of the time in December, and the air most often feels humid.

Daylight stretches from about 11 h 06 min at the start of December to 11 hours by month's end. Set against the rest of the year, December is Savannakhet's 4th-clearest and 1st-windiest month. For the whole year in context, see Savannakhet's year-round climate.

Daytime high
29°
12th warmest
Overnight low
18°
2nd coldest
Rainfall
5 mm
1.4 wet days
Daylight
11 hours
6:27 AM – 5:28 PM
Cloud cover
41%
4th clearest
Wind
15 km/h
1st windiest
Solar energy
4.53 kWh/m²
Travel score
7.0
out of 10

Savannakhet is city of Laos.

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 Savannakhet reaches about 29°C in the afternoon and slips back to 18°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 32°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13020
23019
32919
42919
52919
62919
72919
82919
92919
102918
112918
122918
132918
142918
152918
162918
172818
182818
192818
202817
212817
222817
232817
242817
252817
262817
272817
282817
292917
302917
312917

How December really feels in Savannakhet

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.

Savannakhet 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
Jan29° / 17°41.111.16.9
Feb31° / 19°132.711.45.6
Mar33° / 22°345.711.93.9
Apr34° / 25°6611.112.42.8
May33° / 25°18921.612.82.5
Jun32° / 25°20923.4132.6
Jul31° / 25°2782612.92.7
Aug31° / 25°29427.712.62.6
Sep31° / 24°25824.112.13.0
Oct31° / 23°10911.811.64.4
Nov30° / 21°213.311.25.7
Dec29° / 18°51.4117.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 23% of December, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36733
46832
56832
66832
76733
86832
96832
106931
116931
127030
137030
147228
157327
167426
177426
187624
197723
207822
217921
227921
238020
248119
258119
268119
278119
288119
298020
308020
318020

Chance of precipitation in December

Any precipitation

Savannakhet gets around 5 mm of rain over 1.4 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 4% and peaks near 5% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
14
24
34
44
54
65
75
85
95
105
115
125
135
145
155
165
175
185
194
204
214
224
234
244
253
263
273
283
293
303
313

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 32% of days. Sticky, muggy-or-worse air turns up on roughly 31% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1516333611
2516333510
361733359
461834348
561934338
672034337
772034326
882134316
992234315
1092333304
11102333304
12122432294
13132431293
14142530283
15152529283
16162529283
17172528283
18182528272
19192428262
20202428262
21202429252
22212430242
23212430231
24212431221
25212432221
26212434211
27202435211
28192436201
29182437201
30172438201
31172439201

Wind in December

Winds average 15 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 06 min at the start of December to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:18 AM to 6:33 AM, and sunset from 5:23 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:185:23
211.16:195:23
311.16:195:24
411.16:205:24
511.16:215:24
611.16:215:24
711.06:225:25
811.06:225:25
911.06:235:25
1011.06:235:25
1111.06:245:26
1211.06:245:26
1311.06:255:26
1411.06:265:27
1511.06:265:27
1611.06:275:28
1711.06:275:28
1811.06:285:28
1911.06:285:29
2011.06:295:29
2111.06:295:30
2211.06:305:30
2311.06:305:31
2411.06:305:31
2511.06:315:32
2611.06:315:32
2711.06:325:33
2811.06:325:33
2911.06:335:34
3011.06:335:34
3111.06:335:35

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.53 kWh/m².

For context, solar energy here swings from a low near 4.35 kWh/m² to a high of 6.07 kWh/m² in April across the year — December's 4.53 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
174.5Bright
184.5Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.7Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in December

Hazard calendar for Savannakhet

In seasonPeak

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

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

Savannakhet's monsoon runs May–September, 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 Savannakhet?

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

7.0
Sightseeing
1st-best month of the year
8.6
Beach & pool
2nd-best month of the year

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

What to pack for Savannakhet in December

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

In December, Savannakhet sees daytime highs around 29°C and nights near 18°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Savannakhet in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Savannakhet peaks around July 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highJul 15UV 13Dec 13UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr10Extreme
May11Extreme
Jun13Extreme
Jul13Extreme
Aug12Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Savannakhet 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 Savannakhet is worst in March — around 55 µg/m³ PM2.5 (poor), about 4.5× the cleanest month (November, 12 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1952 µg/m³Nov 2112 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb27Moderate
Mar55Poor
Apr40Poor
May22Moderate
Jun18Moderate
Jul19Moderate
Aug19Moderate
Sep17Moderate
Oct16Moderate
Nov12Good
Dec13Moderate
Location & terrain

Where is Savannakhet?

Savannakhet sits at 16.6°N, 104.8°E, 154 m above sea level, in Laos. The nearest listed city is Mukdahan, 5.0 km away.

Khao WongKuchinaraiAmnat CharoenSakon NakhonNakhon Phanom

Topography around Savannakhet

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

Within 3 km, the terrain around Savannakhet has only modest variations in elevation — a maximum elevation change of 52 m around an average of 150 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 300 m; within 80 km, significant variations in elevation — a maximum elevation change of 517 m.

The land around Savannakhet is covered by artificial surfaces (36%) and trees (22%) within 3 km, trees (43%) and cropland (37%) within 16 km, and cropland (46%) and trees (45%) within 80 km.

3 km
52 m
16 km
300 m
80 km
517 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Mukdahan 5.0 km · Ban Xénô 27 km · Ban Kèngkok 49 km · Khao Wong 73 km · Kuchinarai 76 km · Amnat Charoen 80 km · Sakon Nakhon 93 km · Nakhon Phanom 93 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 Savannakhet (16.5703°, 104.7622°, elevation 154 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). 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).