Nong Khai weather in January

In January, Nong Khai sees average daytime highs of 29°C and overnight lows near 17°C, with 9 mm of rain across 1.6 wet days and about 11 hours of daylight. It is the 11th-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 68% of the time in January, and the air most often feels humid.

Daylight stretches from about 10 h 54 min at the start of January to 11 h 12 min by month's end. Set against the rest of the year, January is Nong Khai's 3rd-clearest and 3rd-windiest month. For the whole year in context, see Nong Khai's year-round climate.

Daytime high
29°
11th warmest
Overnight low
17°
1st coldest
Rainfall
9 mm
1.6 wet days
Daylight
11 hours
6:47 AM – 5:49 PM
Cloud cover
32%
3rd clearest
Wind
7 km/h
3rd windiest
Solar energy
4.69 kWh/m²
Travel score
7.0
out of 10

Nong Khai is town in Nong Khai province, Thailand.

Density
2,042/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical January day in Nong Khai 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 25°C and 32°C. Set against its neighbours, January runs on par with December and about 2°C cooler than February.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12817
22817
32917
42917
52917
62917
72917
82917
92917
102917
112917
122917
132917
142917
152917
162917
172917
182917
192917
202917
212917
222917
232917
242917
252917
262917
272917
282917
292917
302917
313017

How January really feels in Nong Khai

Once humidity and wind are folded in, January 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

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Nong Khai weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°91.6117.0
Feb31° / 19°14211.45.7
Mar34° / 22°315.611.93.8
Apr35° / 25°6610.612.42.6
May33° / 25°24522.612.82.3
Jun32° / 26°31425.513.12.3
Jul32° / 26°37927.4132.4
Aug31° / 25°40627.912.62.4
Sep31° / 25°29724.512.12.7
Oct31° / 24°9311.511.64.2
Nov31° / 21°193.111.25.8
Dec29° / 18°81.310.97.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 68% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 19%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18020
28020
37921
47921
57921
67822
77822
87822
97822
107822
117921
127921
137921
148020
158020
168119
178119
188218
198218
208317
218317
228416
238416
248416
258416
268416
278416
288416
298416
308416
318515

Chance of precipitation in January

Any precipitation

Nong Khai gets around 9 mm of rain over 1.6 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 5% and peaks near 6% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
15
25
35
45
55
65
75
85
95
106
116
126
136
146
156
166
176
186
195
205
215
225
235
245
255
265
275
285
296
306
316

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January lands in the humid band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 26% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1162536222
2152636222
3142636222
4142636222
5132636222
6132636232
7132636232
8132636233
9132635233
10132635233
11132635243
12132635243
13132634233
14132635233
15132635233
16132635233
17132635233
18132635233
19132636233
20132636233
21132636233
22132636232
23132636233
24132636233
25132536243
26132535243
27132435243
28142435243
29142334254
30142334254
31142334254

Wind in January

Winds average 7 km/h in January.

Across January, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 54 min at the start of January to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over January. Sunrise moves from 6:44 AM to 6:47 AM, and sunset from 5:41 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:445:41
210.96:445:41
311.06:445:42
411.06:455:42
511.06:455:43
611.06:455:43
711.06:465:44
811.06:465:45
911.06:465:45
1011.06:465:46
1111.06:475:46
1211.06:475:47
1311.06:475:48
1411.06:475:48
1511.06:475:49
1611.06:475:49
1711.06:475:50
1811.16:475:51
1911.16:475:51
2011.16:475:52
2111.16:475:52
2211.16:475:53
2311.16:475:54
2411.16:475:54
2511.16:475:55
2611.16:475:55
2711.16:475:56
2811.26:475:56
2911.26:475:57
3011.26:475:58
3111.26:475:58

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.69 kWh/m².

For context, solar energy here swings from a low near 4.13 kWh/m² to a high of 6.04 kWh/m² in April across the year — January's 4.69 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
315.0Bright
Planning a trip in January

Hazard calendar for Nong Khai

In seasonPeak

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

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

Nong Khai'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 January a good time to visit Nong Khai?

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

7.0
Sightseeing
2nd-best month of the year
8.8
Beach & pool
2nd-best month of the year

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

What to pack for Nong Khai in January

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

In January, Nong Khai sees daytime highs around 29°C and nights near 17°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Nong Khai in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Nong Khai peaks around August 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 11UV 13Dec 15UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar12Extreme
Apr10Extreme
May11Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in Nong Khai in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Nong Khai is worst in March — around 77 µg/m³ PM2.5 (unhealthy), about 3.4× the cleanest month (July, 23 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyModerateMar 2376 µg/m³Jul 2123 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb44Poor
Mar77Unhealthy
Apr73Unhealthy
May32Moderate
Jun24Moderate
Jul23Moderate
Aug23Moderate
Sep24Moderate
Oct26Moderate
Nov25Moderate
Dec26Moderate
Location & terrain

Where is Nong Khai?

Nong Khai sits at 17.9°N, 102.7°E, 168 m above sea level, in Thailand. The nearest listed city is Tha Bo, 17 km away.

Topography around Nong Khai

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

Within 3 km, the terrain around Nong Khai has only modest variations in elevation — a maximum elevation change of 31 m around an average of 168 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 47 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,489 m.

The land around Nong Khai is covered by trees (34%) and artificial surfaces (32%) within 3 km, cropland (44%) and trees (31%) within 16 km, and trees (51%) and cropland (41%) within 80 km.

3 km
31 m
16 km
47 m
80 km
1,489 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Tha Bo 17 km · Vientiane 18 km · Phon Charoen 48 km · Udon Thani 52 km · Kut Chap 54 km · Ban Dung 58 km · Nam Som 60 km · Nong Bua Lamphu 82 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 Nong Khai (17.8785°, 102.742°, elevation 168 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).