Nakhon Luang weather in May

In May, Nakhon Luang sees average daytime highs of 36°C and overnight lows near 27°C, with 154 mm of rain across 21.6 wet days and about 12.7 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 36°C through the month. The sky is clear or mostly clear about 8% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 48 min by month's end. Set against the rest of the year, May is Nakhon Luang's 8th-clearest and 8th-windiest month. For the whole year in context, see Nakhon Luang's year-round climate.

Daytime high
36°
3rd warmest
Overnight low
27°
12th coldest
Rainfall
154 mm
21.6 wet days
Daylight
12 h 42 min
5:54 AM – 6:34 PM
Cloud cover
79%
8th clearest
Wind
9 km/h
8th windiest
Solar energy
5.6 kWh/m²
Travel score
1.5
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 36°C through the month.

A typical May day in Nakhon Luang reaches about 36°C in the afternoon and slips back to 27°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 39°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13727
23727
33627
43627
53627
63627
73627
83627
93627
103627
113627
123627
133627
143627
153627
163627
173527
183527
193527
203527
213527
223527
233527
243527
253527
263527
273527
283527
293527
303527
313527

How May really feels in Nakhon Luang

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.

Nakhon Luang weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°112.811.24.2
Feb35° / 24°143.111.53.3
Mar36° / 26°417.111.92.3
Apr37° / 27°7712.812.31.5
May36° / 27°15421.612.71.5
Jun35° / 27°14222.812.81.7
Jul34° / 26°14923.112.81.9
Aug34° / 26°17824.512.51.9
Sep33° / 26°26225.512.12.1
Oct33° / 25°15118.711.72.9
Nov33° / 24°29511.34.0
Dec32° / 22°81.411.24.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 79%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24060
33961
43862
53565
63466
73268
83070
92872
102773
112575
122377
132278
142080
151981
161783
171783
181684
191486
201387
211387
221387
231288
241288
251288
261288
271090
281090
291090
301090
31991

Chance of precipitation in May

Any precipitation

Nakhon Luang gets around 154 mm of rain over 21.6 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 70% and peaks near 78% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
156
257
358
459
560
662
763
864
966
1067
1168
1270
1371
1472
1573
1674
1774
1875
1975
2075
2175
2275
2375
2475
2576
2676
2776
2877
2977
3077
3178

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 80% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
122870
222672
322573
412475
512376
612376
712277
812178
912178
1012079
1111980
1211980
1311881
1411881
1501882
1601783
1701783
1801783
1901783
2001783
2101783
2201783
2301783
2401783
2501783
2601783
2701783
2801783
2901783
3001783
3101783

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 10 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
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:59 AM to 5:51 AM, and sunset from 6:30 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:596:30
212.55:596:30
312.55:596:31
412.55:586:31
512.65:586:31
612.65:576:31
712.65:576:31
812.65:566:32
912.65:566:32
1012.65:566:32
1112.65:556:32
1212.65:556:33
1312.65:556:33
1412.65:546:33
1512.75:546:34
1612.75:546:34
1712.75:536:34
1812.75:536:34
1912.75:536:35
2012.75:536:35
2112.75:536:35
2212.75:526:36
2312.75:526:36
2412.75:526:36
2512.75:526:37
2612.85:526:37
2712.85:526:37
2812.85:526:38
2912.85:526:38
3012.85:516:38
3112.85:516:39

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.6 kWh/m².

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 6.17 kWh/m² in April across the year — May's 5.6 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Hazard calendar for Nakhon Luang

In seasonPeak

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

Nakhon Luang'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 Nakhon Luang?

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

1.5
Sightseeing
11th-best month of the year
3.5
Beach & pool
12th-best month of the year

May is a weaker month for outdoor sightseeing in Nakhon Luang.

What to pack for Nakhon Luang in May

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

In May, Nakhon Luang sees daytime highs around 36°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Nakhon Luang in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (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 Luang peaks around August 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 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 14UV 13Nov 23UV 8
UV index (midday)Level
Jan9Very high
Feb9Very high
Mar12Extreme
Apr11Extreme
May10Very high
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec8Very high

Air quality in Nakhon Luang 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 Nakhon Luang is worst in January — around 83 µg/m³ PM2.5 (unhealthy), about 1.9× the cleanest month (July, 43 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyJan 2382 µg/m³Jul 2443 µg/m³
PM2.5 (µg/m³)Level
Jan83Unhealthy
Feb81Unhealthy
Mar70Unhealthy
Apr64Unhealthy
May54Poor
Jun44Poor
Jul43Poor
Aug43Poor
Sep54Poor
Oct66Unhealthy
Nov67Unhealthy
Dec66Unhealthy
Location & terrain

Where is Nakhon Luang?

Nakhon Luang sits at 14.5°N, 100.6°E, 9 m above sea level, in Thailand. The nearest listed city is Ayutthaya, 13 km away.

Topography around Nakhon Luang

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

Within 3 km, the terrain around Nakhon Luang has only modest variations in elevation — a maximum elevation change of 19 m around an average of 6 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 43 m; within 80 km, large variations in elevation — a maximum elevation change of 1,116 m.

The land around Nakhon Luang is covered by cropland (45%) and trees (24%) within 3 km, cropland (58%) and trees (21%) within 16 km, and cropland (60%) and trees (24%) within 80 km.

3 km
19 m
16 km
43 m
80 km
1,116 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Ayutthaya 13 km · Bang Ban 17 km · Tha Ruea 17 km · Ban Mo 21 km · Phak Hai 26 km · Bang Pa-in 26 km · Wang Noi 29 km · Nong Khae 31 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 Luang (14.4634°, 100.6088°, elevation 9 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).