Lampang weather in May

In May, Lampang sees average daytime highs of 35°C and overnight lows near 25°C, with 168 mm of rain across 19.4 wet days and about 12.8 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 36°C in the first days to 34°C by the end. The sky is clear or mostly clear about 21% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 42 min at the start of May to 13 hours by month's end. Set against the rest of the year, May is Lampang's 8th-clearest and 5th-windiest month. For the whole year in context, see Lampang's year-round climate.

Daytime high
35°
3rd warmest
Overnight low
25°
12th coldest
Rainfall
168 mm
19.4 wet days
Daylight
12 h 54 min
5:53 AM – 6:44 PM
Cloud cover
71%
8th clearest
Wind
5 km/h
5th windiest
Solar energy
5.27 kWh/m²
Travel score
2.1
out of 10

Lampang is city in Lampang province, Thailand.

Air quality
High
PM2.5 30 µg/m³ · 2019
Density
7,043/km²
people per km²

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 36°C in the first days to 34°C by the end.

A typical May day in Lampang reaches about 35°C in the afternoon and slips back to 25°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 39°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13625
23625
33625
43625
53525
63525
73525
83525
93525
103525
113525
123525
133525
143525
153425
163425
173425
183425
193425
203425
213425
223425
233425
243425
253425
263425
273425
283425
293425
303425
313425

How May really feels in Lampang

Once humidity and wind are folded in, May averages 31 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
31
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Lampang weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 17°111.8116.1
Feb33° / 18°5111.44.4
Mar36° / 21°22311.92.6
Apr37° / 24°487.812.41.7
May35° / 25°16819.412.82.1
Jun33° / 25°1802313.12.3
Jul32° / 25°20224.7132.5
Aug31° / 25°27226.812.62.5
Sep31° / 24°25624.812.12.7
Oct31° / 23°12615.611.63.9
Nov31° / 20°274.411.15.5
Dec29° / 17°121.810.96.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 65%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26040
35842
45743
55446
65347
75149
84951
94753
104456
114258
124060
133763
143664
153466
163169
173070
182971
192773
202575
212476
222278
232179
242179
251981
261882
271882
281783
291684
301585
311486

Chance of precipitation in May

Any precipitation

Lampang gets around 168 mm of rain over 19.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 62% and peaks near 75% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
145
246
348
449
550
651
752
854
955
1057
1158
1260
1362
1463
1564
1665
1766
1867
1968
2068
2169
2270
2370
2471
2571
2671
2772
2872
2973
3074
3175

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the oppressive band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1125686
2123697
3122689
41206910
51196812
61176913
71166815
81146817
91136719
101126621
111116523
12196525
13086527
14086329
15076330
16066232
17066133
18056035
19055837
20055738
21055540
22055342
23055243
24055045
25054847
26044649
27044452
28044254
29044056
30043858
31043759

Wind in May

Winds average 5 km/h in May.

Across May, daily wind ranges from about 5 km/h on the calmest days to 5 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
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 42 min at the start of May to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 6:00 AM to 5:49 AM, and sunset from 6:39 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:006:39
212.75:596:39
312.75:586:39
412.75:586:40
512.75:576:40
612.75:576:40
712.75:566:41
812.85:566:41
912.85:556:41
1012.85:556:42
1112.85:556:42
1212.85:546:43
1312.85:546:43
1412.85:536:43
1512.85:536:44
1612.95:536:44
1712.95:526:44
1812.95:526:45
1912.95:526:45
2012.95:516:46
2112.95:516:46
2212.95:516:46
2312.95:516:47
2412.95:506:47
2513.05:506:47
2613.05:506:48
2713.05:506:48
2813.05:506:49
2913.05:496:49
3013.05:496:49
3113.05:496:50

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.27 kWh/m².

For context, solar energy here swings from a low near 3.93 kWh/m² to a high of 6.26 kWh/m² in April across the year — May's 5.27 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.8Bright
35.8Bright
45.8Bright
55.7Bright
65.7Bright
75.6Bright
85.6Bright
95.5Bright
105.5Bright
115.4Bright
125.4Bright
135.3Bright
145.3Bright
155.3Bright
165.2Bright
175.2Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in May

Hazard calendar for Lampang

In seasonPeak

In May, Lampang sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Lampang'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 May a good time to visit Lampang?

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

2.1
Sightseeing
11th-best month of the year
4.4
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Lampang.

What to pack for Lampang in May

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

In May, Lampang sees daytime highs around 35°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Lampang in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lampang peaks around August 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 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 13UV 13Dec 18UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar9Very high
Apr10Very high
May11Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7Very high

Air quality in Lampang in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Lampang is worst in March — around 53 µg/m³ PM2.5 (poor), about 3.1× the cleanest month (June, 17 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Lampang's WHO annual average of 30 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMar 1852 µg/m³Jun 2317 µg/m³
PM2.5 (µg/m³)Level
Jan36Poor
Feb41Poor
Mar53Poor
Apr44Poor
May26Moderate
Jun17Moderate
Jul18Moderate
Aug19Moderate
Sep22Moderate
Oct26Moderate
Nov28Moderate
Dec31Moderate
Location & terrain

Where is Lampang?

Lampang sits at 18.3°N, 99.5°E, 238 m above sea level, in Thailand. The nearest listed city is Lamphun, 60 km away.

Topography around Lampang

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

Within 3 km, the terrain around Lampang has only modest variations in elevation — a maximum elevation change of 51 m around an average of 240 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 690 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,914 m.

The land around Lampang is covered by artificial surfaces (48%) and trees (30%) within 3 km, trees (46%) and cropland (35%) within 16 km, and trees (81%) within 80 km.

3 km
51 m
16 km
690 m
80 km
1,914 m
treesshrubsgrasslandcroplandartificial surfaces
May weather nearby: Lamphun 60 km · San Kamphaeng 64 km · Pa Sang 64 km · Den Chai 68 km · Phrae 70 km · San Pa Tong 73 km · Hang Dong 75 km · Chiang Mai 77 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 Lampang (18.2923°, 99.4928°, elevation 238 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).