Nong Phai weather in May

In May, Nong Phai sees average daytime highs of 34°C and overnight lows near 26°C, with 240 mm of rain across 24.3 wet days and about 12.7 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 34°C through the month. The sky is clear or mostly clear about 11% 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 12 h 54 min by month's end. Set against the rest of the year, May is Nong Phai's 8th-clearest and 10th-windiest month. For the whole year in context, see Nong Phai's year-round climate.

Daytime high
34°
3rd warmest
Overnight low
26°
12th coldest
Rainfall
240 mm
24.3 wet days
Daylight
12 h 42 min
5:50 AM – 6:34 PM
Cloud cover
77%
8th clearest
Wind
6 km/h
10th windiest
Solar energy
5.51 kWh/m²
Travel score
2.1
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 34°C through the month.

A typical May day in Nong Phai reaches about 34°C in the afternoon and slips back to 26°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 36°C. Set against its neighbours, May runs about 2°C cooler than April and about 1°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13526
23526
33526
43426
53426
63426
73426
83426
93426
103426
113426
123426
133426
143426
153426
163425
173325
183325
193325
203325
213325
223325
233325
243325
253325
263325
273325
283325
293325
303325
313325

How May really feels in Nong Phai

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.

Nong Phai 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
Jan31° / 19°122.611.25.4
Feb33° / 21°193.711.54.2
Mar35° / 23°467.811.92.9
Apr35° / 25°8513.712.32.2
May34° / 26°24024.312.72.1
Jun32° / 25°26426.512.92.1
Jul32° / 25°29328.112.92.3
Aug31° / 25°33229.312.52.3
Sep31° / 25°2952712.12.5
Oct32° / 24°12015.311.63.7
Nov32° / 22°263.911.34.9
Dec31° / 19°91.411.15.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 78%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24456
34258
44159
53961
63763
73565
83367
93268
102971
112773
122575
132476
142278
152080
161981
171783
181585
191585
201486
211387
221288
231288
241189
251090
261090
27991
28991
29991
30892
31892

Chance of precipitation in May

Any precipitation

Nong Phai gets around 240 mm of rain over 24.3 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 78% and peaks near 87% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
163
264
365
466
567
669
770
871
973
1074
1176
1277
1378
1479
1580
1681
1782
1883
1983
2084
2184
2285
2385
2485
2586
2686
2786
2886
2987
3087
3187

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 77% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
124652
224454
324157
423959
523662
613465
713267
813069
912871
1012673
1112574
1212376
1312277
1412178
1512079
1611980
1711881
1801882
1901783
2001684
2101585
2201486
2301486
2401387
2501288
2601189
2701090
280991
290991
300892
310892

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 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
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 36 min at the start of May to 12 h 54 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 5:56 AM to 5:47 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)
112.65:566:30
212.65:556:30
312.65:556:30
412.65:546:31
512.65:546:31
612.65:536:31
712.65:536:32
812.75:536:32
912.75:526:32
1012.75:526:32
1112.75:516:33
1212.75:516:33
1312.75:516:33
1412.75:506:34
1512.75:506:34
1612.75:506:34
1712.85:496:35
1812.85:496:35
1912.85:496:35
2012.85:496:36
2112.85:486:36
2212.85:486:36
2312.85:486:37
2412.85:486:37
2512.85:486:37
2612.85:476:38
2712.85:476:38
2812.95:476:38
2912.95:476:39
3012.95:476:39
3112.95:476:39

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.51 kWh/m².

For context, solar energy here swings from a low near 4.26 kWh/m² to a high of 6.25 kWh/m² in April across the year — May's 5.51 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.6Bright
115.6Bright
125.6Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.2Bright
Planning a trip in May

Hazard calendar for Nong Phai

In seasonPeak

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

Nong Phai's monsoon runs May–September, 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 Nong Phai?

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
4.0
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Nong Phai.

What to pack for Nong Phai in May

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

In May, Nong Phai sees daytime highs around 34°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

UV index in Nong Phai 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 Nong Phai peaks around August 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 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 highExtremeVery highAug 14UV 13Dec 13UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Nong Phai 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 Nong Phai is worst in March — around 44 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (November, 20 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1544 µg/m³Nov 2020 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb40Poor
Mar44Poor
Apr37Poor
May27Moderate
Jun20Moderate
Jul21Moderate
Aug21Moderate
Sep22Moderate
Oct23Moderate
Nov20Moderate
Dec21Moderate
Location & terrain

Where is Nong Phai?

Nong Phai sits at 16.0°N, 101.1°E, 111 m above sea level, in Thailand. The nearest listed city is Chon Daen, 31 km away.

Topography around Nong Phai

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

Within 3 km, the terrain around Nong Phai has only modest variations in elevation — a maximum elevation change of 129 m around an average of 105 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 457 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,321 m.

The land around Nong Phai is covered by cropland (54%) and trees (26%) within 3 km, cropland (66%) and trees (26%) within 16 km, and cropland (57%) and trees (40%) within 80 km.

3 km
129 m
16 km
457 m
80 km
1,321 m
treesgrasslandcroplandartificial surfaces
May weather nearby: Chon Daen 31 km · Wichian Buri 37 km · Phetchabun 49 km · Thap Khlo 53 km · Bang Mun Nak 73 km · Taphan Hin 73 km · Chai Badan 88 km · Lom Sak 90 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 Nong Phai (15.9902°, 101.0618°, elevation 111 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).