Nakhon Phanom weather in May

In May, Nakhon Phanom sees average daytime highs of 32°C and overnight lows near 24°C, with 253 mm of rain across 23.7 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 33°C in the first days to 31°C by the end. The sky is clear or mostly clear about 10% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 36 min at the start of May to 13 hours by month's end. Set against the rest of the year, May is Nakhon Phanom's 8th-clearest and 11th-windiest month. For the whole year in context, see Nakhon Phanom's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
24°
11th coldest
Rainfall
253 mm
23.7 wet days
Daylight
12 h 48 min
5:33 AM – 6:22 PM
Cloud cover
78%
8th clearest
Wind
5 km/h
11th windiest
Solar energy
5 kWh/m²
Travel score
2.7
out of 10

Nakhon Phanom is town in Nakhon Phanom province, Thailand.

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 33°C in the first days to 31°C by the end.

A typical May day in Nakhon Phanom reaches about 32°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 35°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13324
23324
33324
43324
53324
63324
73324
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203225
213125
223125
233125
243125
253125
263125
273125
283125
293125
303125
313125

How May really feels in Nakhon Phanom

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
heat index over the day's high
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 Phanom 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
Jan28° / 16°61.511.17.4
Feb30° / 18°132.511.46.2
Mar32° / 21°345.611.94.6
Apr33° / 23°6911.512.43.4
May32° / 24°25323.712.82.7
Jun31° / 25°37827.6132.5
Jul30° / 24°49029.412.92.7
Aug30° / 24°49329.912.62.6
Sep30° / 24°31824.712.13.0
Oct31° / 22°11111.411.64.5
Nov30° / 19°202.611.26.0
Dec28° / 16°61.2117.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% 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 77%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34456
44159
53961
63862
73664
83466
93268
103070
112971
122872
132674
142476
152179
162080
171882
181684
191585
201585
211387
221387
231288
241288
251189
261090
271090
281189
291189
301189
311189

Chance of precipitation in May

Any precipitation

Nakhon Phanom gets around 253 mm of rain over 23.7 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 76% and peaks near 90% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
155
257
358
460
561
663
765
866
968
1069
1171
1273
1374
1476
1577
1679
1780
1881
1982
2083
2184
2285
2386
2487
2587
2688
2788
2889
2989
3089
3190

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 67% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11105534
2195337
3195040
4184843
5184645
6174348
7174151
8163954
9163657
10163558
11153361
12153163
13143065
14142867
15142768
16132670
17132571
18132472
19122374
20122275
21122176
22022078
23011980
24011881
25011782
26011584
27011485
28011386
29011287
30011188
31001090

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 6 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
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 36 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 24 minutes over May. Sunrise moves from 5:39 AM to 5:30 AM, and sunset from 6:17 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:396:17
212.65:396:17
312.65:386:17
412.75:386:18
512.75:376:18
612.75:376:18
712.75:366:19
812.75:366:19
912.75:356:19
1012.75:356:19
1112.85:356:20
1212.85:346:20
1312.85:346:20
1412.85:336:21
1512.85:336:21
1612.85:336:22
1712.85:326:22
1812.85:326:22
1912.85:326:23
2012.95:326:23
2112.95:316:23
2212.95:316:24
2312.95:316:24
2412.95:316:24
2512.95:306:25
2612.95:306:25
2712.95:306:26
2812.95:306:26
2912.95:306:26
3012.95:306:27
3113.05:306:27

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5 kWh/m².

For context, solar energy here swings from a low near 3.85 kWh/m² to a high of 5.98 kWh/m² in April across the year — May's 5 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.6Bright
45.6Bright
55.5Bright
65.5Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.2Bright
125.2Bright
135.1Bright
145.1Bright
155.0Bright
165.0Bright
174.9Bright
184.9Bright
194.8Bright
204.8Bright
214.8Bright
224.7Bright
234.7Bright
244.7Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.5Bright
314.5Bright
Planning a trip in May

Hazard calendar for Nakhon Phanom

In seasonPeak

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

Nakhon Phanom sits in the Pacific typhoon belt; the season peaks July–October.

Nakhon Phanom's monsoon runs May–September, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Nakhon Phanom?

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

2.7
Sightseeing
9th-best month of the year
4.3
Beach & pool
8th-best month of the year

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

What to pack for Nakhon Phanom in May

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

In May, Nakhon Phanom sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

UV index in Nakhon Phanom in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 12 (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 Phanom peaks around July 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 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 highJul 18UV 13Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar11Extreme
Apr10Very high
May12Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in Nakhon Phanom 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 Phanom is worst in March — around 84 µg/m³ PM2.5 (unhealthy), about 5.6× the cleanest month (November, 15 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyModerateMar 1879 µg/m³Nov 1715 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb39Poor
Mar84Unhealthy
Apr49Poor
May23Moderate
Jun19Moderate
Jul18Moderate
Aug19Moderate
Sep17Moderate
Oct18Moderate
Nov15Moderate
Dec17Moderate
Location & terrain

Where is Nakhon Phanom?

Nakhon Phanom sits at 17.4°N, 104.8°E, 154 m above sea level, in Thailand. The nearest listed city is Tha Khaek, 6.0 km away.

SavannakhetMukdahanSekaKhao WongBan Kèngkok

Topography around Nakhon Phanom

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

Within 3 km, the terrain around Nakhon Phanom has only modest variations in elevation — a maximum elevation change of 40 m around an average of 145 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 577 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,431 m.

The land around Nakhon Phanom is covered by trees (33%), artificial surfaces (22%) and cropland (20%) within 3 km, trees (55%) and cropland (29%) within 16 km, and trees (64%) and cropland (28%) within 80 km.

3 km
40 m
16 km
577 m
80 km
1,431 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Tha Khaek 6.0 km · Sakon Nakhon 73 km · Ban Xénô 85 km · Savannakhet 93 km · Mukdahan 96 km · Seka 105 km · Khao Wong 108 km · Ban Kèngkok 116 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 Phanom (17.4108°, 104.7786°, elevation 154 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).