Nakhon Ratchasima weather in January

In January, Nakhon Ratchasima sees average daytime highs of 31°C and overnight lows near 19°C, with 7 mm of rain across 1.7 wet days and about 11.2 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 56% of the time in January, and the air most often feels humid.

Daylight stretches from about 11 h 06 min at the start of January to 11 h 18 min by month's end. Set against the rest of the year, January is Nakhon Ratchasima's 2nd-clearest and 6th-windiest month. For the whole year in context, see Nakhon Ratchasima's year-round climate.

Daytime high
31°
10th warmest
Overnight low
19°
1st coldest
Rainfall
7 mm
1.7 wet days
Daylight
11 h 12 min
6:45 AM – 5:57 PM
Cloud cover
39%
2nd clearest
Wind
9 km/h
6th windiest
Solar energy
5.08 kWh/m²
Travel score
5.7
out of 10

Nakhon Ratchasima is Capital city of Nakhon Ratchasima Province, Thailand.

Air quality
Elevated
PM2.5 24 µg/m³ · 2019
Density
3,370/km²
people per km²
Founded
1656

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 31°C through the month.

A typical January day in Nakhon Ratchasima reaches about 31°C in the afternoon and slips back to 19°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 34°C. Set against its neighbours, January runs about 1°C warmer than December and about 2°C cooler than February.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13019
23019
33019
43019
53019
63019
73019
83119
93119
103119
113119
123119
133119
143119
153119
163119
173119
183119
193119
203119
213119
223119
233119
243119
253119
263119
273119
283119
293120
303220
313220

How January really feels in Nakhon Ratchasima

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.

Nakhon Ratchasima weather by month

How January compares with the rest of the year at a glance. January 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
Jan31° / 19°71.711.25.7
Feb33° / 21°91.711.54.3
Mar35° / 24°386.711.92.7
Apr36° / 25°6912.612.32.0
May35° / 26°14020.112.72.0
Jun34° / 26°11919.412.92.1
Jul33° / 26°12621.112.82.3
Aug33° / 25°16122.812.52.4
Sep32° / 25°23124.512.12.5
Oct31° / 24°13816.411.73.7
Nov31° / 22°294.811.35.1
Dec30° / 19°51.311.16.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 56% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 18% of January, 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 (%)
17030
27030
37030
46931
56931
67030
77030
87030
97030
107030
117030
127129
137228
147228
157228
167327
177426
187525
197624
207624
217624
227723
237822
247822
257822
267822
278020
288020
298020
308020
318119

Chance of precipitation in January

Any precipitation

Nakhon Ratchasima gets around 7 mm of rain over 1.7 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
105
115
125
135
145
155
165
176
186
196
206
216
226
236
246
256
266
275
285
295
305
314

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 34% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1132532255
2122533255
3122533256
4112534256
5112434256
6102434257
7102434257
8102335257
9102335258
10102235258
11102235258
12102235259
1392235259
1492135259
1592135259
1692036259
1792036259
1892036269
1991936269
2091937269
2191937269
2291937269
2391936279
2491936279
2591836279
26918352710
271018352810
281018342810
291018332810
301118322810
311118312910

Wind in January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 06 min at the start of January to 11 h 18 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 6:41 AM to 6:45 AM, and sunset from 5:49 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:415:49
211.16:415:49
311.16:425:50
411.16:425:50
511.16:425:51
611.16:435:51
711.16:435:52
811.26:435:52
911.26:435:53
1011.26:445:54
1111.26:445:54
1211.26:445:55
1311.26:445:55
1411.26:455:56
1511.26:455:56
1611.26:455:57
1711.26:455:57
1811.26:455:58
1911.26:455:59
2011.26:455:59
2111.26:456:00
2211.26:456:00
2311.36:456:01
2411.36:456:01
2511.36:456:02
2611.36:456:02
2711.36:456:03
2811.36:456:03
2911.36:456:04
3011.36:456:04
3111.36:456:05

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.08 kWh/m².

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 6.08 kWh/m² in April across the year — January's 5.08 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in January

Hazard calendar for Nakhon Ratchasima

In seasonPeak

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

Nakhon Ratchasima'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 Nakhon Ratchasima?

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

5.7
Sightseeing
2nd-best month of the year
8.3
Beach & pool
2nd-best month of the year

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

What to pack for Nakhon Ratchasima in January

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

In January, Nakhon Ratchasima sees daytime highs around 31°C and nights near 19°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Nakhon Ratchasima 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 Nakhon Ratchasima peaks around August 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 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 highExtremeExtremeVery highAug 13UV 14Nov 22UV 8
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar13Extreme
Apr11Extreme
May10Very high
Jun13Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Nakhon Ratchasima 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 Nakhon Ratchasima is worst in March — around 37 µg/m³ PM2.5 (poor), about 2.1× the cleanest month (June, 18 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Nakhon Ratchasima's WHO annual average of 24 µg/m³.

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1337 µg/m³Jun 2218 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb34Moderate
Mar37Poor
Apr30Moderate
May23Moderate
Jun18Moderate
Jul18Moderate
Aug19Moderate
Sep21Moderate
Oct23Moderate
Nov20Moderate
Dec19Moderate
Location & terrain

Where is Nakhon Ratchasima?

Nakhon Ratchasima sits at 15.0°N, 102.1°E, 187 m above sea level, in Thailand. The nearest listed city is Chok Chai, 28 km away.

Topography around Nakhon Ratchasima

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

Within 3 km, the terrain around Nakhon Ratchasima has only modest variations in elevation — a maximum elevation change of 33 m around an average of 185 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 133 m; within 80 km, large variations in elevation — a maximum elevation change of 866 m.

The land around Nakhon Ratchasima is covered by artificial surfaces (62%) and trees (27%) within 3 km, cropland (47%) and trees (27%) within 16 km, and cropland (72%) and trees (22%) within 80 km.

3 km
33 m
16 km
133 m
80 km
866 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Chok Chai 28 km · Non Sung 29 km · Amphoe Sikhiu 43 km · Dan Khun Thot 44 km · Khon Buri 52 km · Ban Huai Thalaeng 59 km · Bua Yai 77 km · Pak Chong 79 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 Nakhon Ratchasima (14.9707°, 102.102°, elevation 187 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).