Sekong weather in December

In December, Sekong sees average daytime highs of 28°C and overnight lows near 17°C, with 15 mm of rain across 2.7 wet days and about 11.1 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 35% of the time in December, and the air most often feels humid.

Daylight stretches from about 11 h 12 min at the start of December to 11 h 06 min by month's end. Set against the rest of the year, December is Sekong's 4th-clearest and 1st-windiest month. For the whole year in context, see Sekong's year-round climate.

Daytime high
28°
10th warmest
Overnight low
17°
2nd coldest
Rainfall
15 mm
2.7 wet days
Daylight
11 h 06 min
6:16 AM – 5:22 PM
Cloud cover
52%
4th clearest
Wind
5 km/h
1st windiest
Solar energy
4.56 kWh/m²
Travel score
7.4
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical December day in Sekong reaches about 28°C in the afternoon and slips back to 17°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 31°C. Set against its neighbours, December runs on par with November and about 1°C cooler than January.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12818
22818
32818
42818
52818
62818
72818
82817
92817
102817
112817
122817
132817
142817
152817
162817
172817
182817
192817
202817
212816
222816
232816
242816
252816
262816
272816
282816
292816
302816
312816

How December really feels in Sekong

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.

Sekong weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 16°8211.26.9
Feb30° / 18°184.511.55.6
Mar32° / 20°7211.511.94.2
Apr32° / 22°13821.212.33.0
May30° / 22°27228.312.72.7
Jun29° / 22°27628.812.92.9
Jul28° / 22°35030.412.83.2
Aug28° / 22°35230.312.53.3
Sep28° / 22°34128.212.13.4
Oct28° / 20°18018.711.74.5
Nov28° / 19°687.511.36.1
Dec28° / 17°152.711.17.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 29% of December, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26238
36139
46139
56139
66139
76040
86040
96040
106040
116139
126139
136139
146238
156337
166337
176436
186436
196535
206535
216634
226733
236733
246733
256733
266832
276733
286733
296832
306832
316832

Chance of precipitation in December

Any precipitation

Sekong gets around 15 mm of rain over 2.7 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 9% and peaks near 13% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
113
212
312
412
511
611
711
811
911
1011
1111
1210
1310
1410
1510
169
179
189
198
208
217
227
237
246
256
265
275
284
294
304
314

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 41% of days. Sticky, muggy-or-worse air turns up on roughly 22% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
131737385
241838374
341839364
441940343
542041333
642142312
742143302
842244292
942345272
1042345261
1152445251
1252545241
1362645231
1462644221
1572744211
1682843201
1792942191
18103042181
19113141171
20113240161
21123340150
22133439140
23143439120
24143539110
25153639100
26153639100
2715373990
2815373990
2915383980
3014383980
3114393980

Wind in December

Winds average 5 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 5 km/h on the calmest days to 6 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
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 12 min at the start of December to 11 h 06 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 6:08 AM to 6:23 AM, and sunset from 5:17 PM to 5:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:085:17
211.16:095:18
311.16:095:18
411.16:105:18
511.16:105:18
611.16:115:19
711.16:125:19
811.16:125:19
911.16:135:20
1011.16:135:20
1111.16:145:20
1211.16:145:21
1311.16:155:21
1411.16:155:21
1511.16:165:22
1611.16:165:22
1711.16:175:23
1811.16:175:23
1911.16:185:23
2011.16:185:24
2111.16:195:24
2211.16:195:25
2311.16:205:25
2411.16:205:26
2511.16:215:26
2611.16:215:27
2711.16:225:27
2811.16:225:28
2911.16:225:28
3011.16:235:29
3111.16:235:29

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.56 kWh/m².

For context, solar energy here swings from a low near 3.94 kWh/m² to a high of 6.04 kWh/m² in March across the year — December's 4.56 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
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in December

Hazard calendar for Sekong

In seasonPeak

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

Sekong'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 Sekong?

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

7.4
Sightseeing
1st-best month of the year
8.0
Beach & pool
2nd-best month of the year

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

What to pack for Sekong in December

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

In December, Sekong sees daytime highs around 28°C and nights near 17°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Sekong in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sekong peaks around August 14 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 highAug 14UV 14Dec 14UV 8
UV index (midday)Level
Jan10Very high
Feb9Very high
Mar9Very high
Apr11Extreme
May11Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Sekong 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 Sekong is worst in March — around 185 µg/m³ PM2.5 (very unhealthy), about 26.0× the cleanest month (November, 7 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyUnhealthyModerateGoodMar 17170 µg/m³Nov 197 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb63Unhealthy
Mar185Very unhealthy
Apr66Unhealthy
May16Moderate
Jun11Good
Jul11Good
Aug10Good
Sep9Good
Oct9Good
Nov7Good
Dec8Good
Location & terrain

Where is Sekong?

Sekong sits at 15.3°N, 106.7°E, 148 m above sea level, in Laos. The nearest listed city is Ban Laongam, 61 km away.

Ban LaongamPakseChampasakBà NàPhong ĐiềnHương TràHương ThủyHue

Topography around Sekong

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

Within 3 km, the terrain around Sekong has only modest variations in elevation — a maximum elevation change of 159 m around an average of 158 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,170 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,120 m.

The land around Sekong is covered by trees (60%) within 3 km, trees (83%) within 16 km, and trees (83%) within 80 km.

3 km
159 m
16 km
1,170 m
80 km
2,120 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Ban Laongam 61 km · Pakse 102 km · Champasak 104 km · Bà Nà 152 km · Phong Điền 154 km · Hương Trà 154 km · Hương Thủy 155 km · Hue 155 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 Sekong (15.3458°, 106.7237°, elevation 148 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).