Lamphun weather in January

In January, Lamphun sees average daytime highs of 30°C and overnight lows near 16°C, with 8 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.

Highs climb over the month, from about 29°C in the first days to 31°C by the end. The sky is clear or mostly clear about 73% 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 Lamphun's 3rd-clearest and 11th-windiest month. For the whole year in context, see Lamphun's year-round climate.

Daytime high
30°
11th warmest
Overnight low
16°
1st coldest
Rainfall
8 mm
1.6 wet days
Daylight
11 hours
7:03 AM – 6:03 PM
Cloud cover
28%
3rd clearest
Wind
4 km/h
11th windiest
Solar energy
4.74 kWh/m²
Travel score
6.5
out of 10

Lamphun is town in Lamphun province, Thailand.

Air quality
Very high
PM2.5 36 µg/m³ · 2019

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 29°C in the first days to 31°C by the end.

A typical January day in Lamphun reaches about 30°C in the afternoon and slips back to 16°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°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)
12916
22916
32916
42916
52916
62916
72916
82916
92916
103016
113016
123016
133016
143016
153016
163016
173016
183016
193016
203016
213016
223016
233016
243116
253116
263116
273116
283116
293116
303116
313116

How January really feels in Lamphun

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.

Lamphun 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
Jan30° / 16°81.6116.5
Feb33° / 17°40.911.44.7
Mar35° / 20°172.611.92.9
Apr37° / 24°457.112.41.8
May35° / 25°13015.512.92.2
Jun33° / 25°12818.113.12.4
Jul33° / 25°15420.4132.6
Aug32° / 25°21423.412.62.7
Sep32° / 24°22622.912.12.7
Oct31° / 23°13117.711.63.7
Nov30° / 20°295.411.15.6
Dec29° / 17°111.710.97.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 73% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 16%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
18020
27921
37921
47921
57921
67921
77921
87921
98020
108119
118119
128218
138218
148317
158515
168515
178614
188614
198713
208713
218713
228812
238812
248812
258812
268812
278812
288812
298911
308911
318911

Chance of precipitation in January

Any precipitation

Lamphun gets around 8 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
36
46
56
66
76
86
96
106
116
125
135
145
154
164
174
184
194
204
214
224
234
244
254
264
275
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 37% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
173435222
273435222
363435222
463435223
563435223
663535213
773535213
873535203
983535193
1083535193
1193536182
12103536172
13103536162
14113536162
15123437152
16133437141
17143438141
18143338141
19153338141
20153239140
21153239140
22153139140
23153139140
24153140140
25153040140
26153040140
27153040140
28153140140
29163139130
30163239130
31163338131

Wind in January

Winds average 4 km/h in January.

Across January, daily wind ranges from about 3 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

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 7:00 AM to 7:03 AM, and sunset from 5:54 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.97:005:54
210.97:005:55
310.97:015:55
410.97:015:56
510.97:015:56
610.97:025:57
710.97:025:58
810.97:025:58
910.97:025:59
1010.97:035:59
1111.07:036:00
1211.07:036:01
1311.07:036:01
1411.07:036:02
1511.07:036:03
1611.07:036:03
1711.07:036:04
1811.07:046:04
1911.07:046:05
2011.07:046:06
2111.07:046:06
2211.17:046:07
2311.17:046:07
2411.17:036:08
2511.17:036:09
2611.17:036:09
2711.17:036:10
2811.17:036:10
2911.17:036:11
3011.17:036:12
3111.27:036:12

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.74 kWh/m².

For context, solar energy here swings from a low near 4 kWh/m² to a high of 6.29 kWh/m² in March across the year — January's 4.74 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.7Bright
144.7Bright
154.7Bright
164.8Bright
174.8Bright
184.8Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.1Bright
295.1Bright
305.1Bright
315.2Bright
Planning a trip in January

Hazard calendar for Lamphun

In seasonPeak

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

Lamphun'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 Lamphun?

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

6.5
Sightseeing
2nd-best month of the year
8.7
Beach & pool
1st-best month of the year

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

What to pack for Lamphun in January

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

In January, Lamphun sees daytime highs around 30°C and nights near 16°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Lamphun in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January 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 Lamphun peaks around August 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 14UV 13Dec 21UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar9Very high
Apr10Very high
May11Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in Lamphun 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 Lamphun is worst in March — around 75 µg/m³ PM2.5 (unhealthy), about 4.3× the cleanest month (July, 18 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Lamphun's WHO annual average of 36 µg/m³.

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyModerateMar 2073 µg/m³Jul 1218 µg/m³
PM2.5 (µg/m³)Level
Jan40Poor
Feb50Poor
Mar75Unhealthy
Apr66Unhealthy
May30Moderate
Jun18Moderate
Jul18Moderate
Aug19Moderate
Sep23Moderate
Oct28Moderate
Nov31Moderate
Dec35Moderate
Location & terrain

Where is Lamphun?

Lamphun sits at 18.6°N, 99.0°E, 296 m above sea level, in Thailand. The nearest listed city is Pa Sang, 9.0 km away.

PaiThoen

Topography around Lamphun

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

Within 3 km, the terrain around Lamphun has only modest variations in elevation — a maximum elevation change of 14 m around an average of 292 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 406 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,502 m.

The land around Lamphun is covered by cropland (36%), trees (29%) and artificial surfaces (27%) within 3 km, trees (51%) and cropland (29%) within 16 km, and trees (82%) within 80 km.

3 km
14 m
16 km
406 m
80 km
2,502 m
treesshrubsgrasslandcroplandartificial surfaceswater
January weather nearby: Pa Sang 9.0 km · San Pa Tong 13 km · Hang Dong 15 km · San Kamphaeng 22 km · Chiang Mai 23 km · Lampang 60 km · Pai 105 km · Thoen 110 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 Lamphun (18.5805°, 99.0075°, elevation 296 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).