Na Klang weather in January

In January, Na Klang sees average daytime highs of 29°C and overnight lows near 17°C, with 7 mm of rain across 1.2 wet days and about 11.1 hours of daylight. It is the 11th-warmest and 12th-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 63% of the time in January, and the air most often feels humid.

Daylight stretches from about 11 hours at the start of January to 11 h 12 min by month's end. Set against the rest of the year, January is Na Klang's 2nd-clearest and 4th-windiest month. For the whole year in context, see Na Klang's year-round climate.

Daytime high
29°
11th warmest
Overnight low
17°
1st coldest
Rainfall
7 mm
1.2 wet days
Daylight
11 h 06 min
6:48 AM – 5:53 PM
Cloud cover
34%
2nd clearest
Wind
6 km/h
4th windiest
Solar energy
4.76 kWh/m²
Travel score
6.9
out of 10

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 Na Klang 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 33°C. Set against its neighbours, January runs about 1°C warmer than December and about 3°C cooler than February.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12816
22916
32916
42917
52917
62917
72917
82917
92917
102917
112917
122917
132917
142917
152917
162917
172917
182917
192917
202917
212917
223017
233017
243017
253017
263017
273017
283017
293017
303017
313017

How January really feels in Na Klang

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.

Na Klang weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°71.211.16.9
Feb32° / 19°111.911.45.2
Mar34° / 22°345.611.93.4
Apr35° / 25°6510.812.42.3
May34° / 26°17221.212.82.2
Jun33° / 26°15519.4132.4
Jul32° / 26°18721.712.92.6
Aug32° / 25°25424.812.62.6
Sep31° / 25°2622412.12.8
Oct31° / 23°11813.511.64.3
Nov30° / 20°233.311.26.1
Dec28° / 17°71117.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 15% of January, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17723
27624
37624
47525
57426
67426
77426
87426
97426
107426
117426
127624
137624
147624
157723
167723
177822
187921
197921
208020
218020
228020
238020
248119
258218
268218
278218
288218
298218
308218
318218

Chance of precipitation in January

Any precipitation

Na Klang gets around 7 mm of rain over 1.2 wet days in January, the driest month. 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
64
74
84
94
104
114
124
134
144
154
164
174
184
194
204
214
224
234
244
254
264
274
285
295
305
315

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 23% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1162933211
2152934211
3152934212
4142935202
5142935202
6132936202
7132936202
8132936202
9132837202
10132837202
11132837202
12132837202
13132837192
14132837192
15132937192
16132937192
17132937192
18132937192
19122937202
20122937203
21122936203
22122936213
23122936213
24122935213
25122835223
26122834224
27132734234
28132733234
29132733234
30142632234
31142632234

Wind in January

Winds average 6 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
136calm
146calm
156calm
166calm
176calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 hours 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 12 minutes over January. Sunrise moves from 6:45 AM to 6:48 AM, and sunset from 5:44 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:455:44
211.06:455:44
311.06:465:45
411.06:465:46
511.06:465:46
611.06:475:47
711.06:475:47
811.06:475:48
911.06:475:48
1011.06:475:49
1111.06:485:50
1211.06:485:50
1311.06:485:51
1411.16:485:51
1511.16:485:52
1611.16:485:53
1711.16:495:53
1811.16:495:54
1911.16:495:54
2011.16:495:55
2111.16:495:56
2211.16:495:56
2311.16:495:57
2411.16:495:57
2511.26:495:58
2611.26:495:58
2711.26:495:59
2811.26:486:00
2911.26:486:00
3011.26:486:01
3111.26:486:01

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.76 kWh/m².

For context, solar energy here swings from a low near 4.28 kWh/m² to a high of 6.01 kWh/m² in April across the year — January's 4.76 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in January

Hazard calendar for Na Klang

In seasonPeak

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

Na Klang'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 January a good time to visit Na Klang?

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

6.9
Sightseeing
2nd-best month of the year
8.8
Beach & pool
1st-best month of the year

January is a reasonable time to visit Na Klang for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Na Klang in January

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

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

light clothessun protection

UV index in Na Klang in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Na Klang peaks around August 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 11UV 13Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr11Extreme
May11Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Na Klang 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 Na Klang is worst in March — around 63 µg/m³ PM2.5 (unhealthy), about 3.1× the cleanest month (July, 20 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModerateMar 1861 µg/m³Jul 1320 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb45Poor
Mar63Unhealthy
Apr50Poor
May28Moderate
Jun20Moderate
Jul20Moderate
Aug21Moderate
Sep23Moderate
Oct25Moderate
Nov24Moderate
Dec25Moderate
Location & terrain

Where is Na Klang?

Na Klang sits at 17.3°N, 102.2°E, 253 m above sea level, in Thailand. The nearest listed city is Erawan, 25 km away.

Topography around Na Klang

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

Within 3 km, the terrain around Na Klang has only modest variations in elevation — a maximum elevation change of 97 m around an average of 250 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 371 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,440 m.

The land around Na Klang is covered by cropland (60%) and trees (28%) within 3 km, cropland (68%) and trees (26%) within 16 km, and trees (51%) and cropland (43%) within 80 km.

3 km
97 m
16 km
371 m
80 km
1,440 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Erawan 25 km · Nong Bua Lamphu 29 km · Kut Chap 42 km · Wang Saphung 45 km · Nam Som 52 km · Loei 53 km · Phu Kradueng 57 km · Udon Thani 64 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 Na Klang (17.3072°, 102.1889°, elevation 253 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).