Ban Phan Don weather in May

In May, Ban Phan Don sees average daytime highs of 34°C and overnight lows near 26°C, with 195 mm of rain across 21.1 wet days and about 12.8 hours of daylight. It is the 3rd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 35°C in the first days to 33°C by the end. The sky is clear or mostly clear about 12% 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 Ban Phan Don's 8th-clearest and 11th-windiest month. For the whole year in context, see Ban Phan Don's year-round climate.

Daytime high
34°
3rd warmest
Overnight low
26°
11th coldest
Rainfall
195 mm
21.1 wet days
Daylight
12 h 48 min
5:40 AM – 6:28 PM
Cloud cover
78%
8th clearest
Wind
7 km/h
11th windiest
Solar energy
5.37 kWh/m²
Travel score
2.2
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 35°C in the first days to 33°C by the end.

A typical May day in Ban Phan Don 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 37°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)
13526
23526
33526
43526
53526
63526
73426
83426
93426
103426
113426
123426
133426
143426
153426
163426
173426
183426
193426
203426
213426
223326
233326
243326
253326
263326
273326
283326
293326
303326
313326

How May really feels in Ban Phan Don

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.

Ban Phan Don weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°81.511.16.7
Feb32° / 19°132.311.45.2
Mar34° / 23°365.811.93.4
Apr35° / 25°6910.712.42.4
May34° / 26°19521.112.82.2
Jun33° / 26°19022.1132.3
Jul32° / 26°24124.612.92.5
Aug32° / 25°29926.312.62.5
Sep31° / 25°26723.912.12.8
Oct31° / 23°9111.511.64.3
Nov30° / 21°223.211.25.8
Dec29° / 18°61.1117.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% 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 76%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24555
34357
44258
54060
63961
73862
83664
93466
103268
113169
122971
132773
142575
152377
162179
172080
181981
191882
201684
211585
221387
231387
241288
251288
261288
271189
281189
291189
301090
311090

Chance of precipitation in May

Any precipitation

Ban Phan Don gets around 195 mm of rain over 21.1 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 68% and peaks near 81% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
152
253
354
455
556
657
758
860
961
1062
1163
1264
1365
1466
1567
1668
1769
1870
1971
2072
2173
2274
2375
2476
2577
2678
2779
2879
2980
3081
3181

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 56% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1196624
2186427
3186229
4176032
5165934
6165637
7155539
8155242
9155044
10144847
11144649
12144451
13144352
14144154
15134056
16133957
17133759
18033661
19023563
20023464
21023365
22013267
23013069
24012970
25012772
26012673
27012475
28002278
29002179
30001981
31001882

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 5:47 AM to 5:37 AM, and sunset from 6:24 PM to 6:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:476:24
212.65:466:24
312.65:466:24
412.75:456:24
512.75:456:25
612.75:446:25
712.75:446:25
812.75:436:26
912.75:436:26
1012.75:436:26
1112.75:426:27
1212.85:426:27
1312.85:416:27
1412.85:416:28
1512.85:416:28
1612.85:406:28
1712.85:406:29
1812.85:406:29
1912.85:396:29
2012.85:396:30
2112.95:396:30
2212.95:396:30
2312.95:386:31
2412.95:386:31
2512.95:386:32
2612.95:386:32
2712.95:386:32
2812.95:386:33
2912.95:376:33
3012.95:376:33
3112.95:376:34

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.37 kWh/m².

For context, solar energy here swings from a low near 4.27 kWh/m² to a high of 6.07 kWh/m² in April across the year — May's 5.37 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.8Bright
35.8Bright
45.8Bright
55.7Bright
65.7Bright
75.7Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Hazard calendar for Ban Phan Don

In seasonPeak

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

Ban Phan Don'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 Ban Phan Don?

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

2.2
Sightseeing
12th-best month of the year
4.3
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Ban Phan Don.

What to pack for Ban Phan Don in May

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

In May, Ban Phan Don sees daytime highs around 34°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

UV index in Ban Phan Don 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 Ban Phan Don peaks around August 12 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 highExtremeVery highAug 12UV 13Dec 14UV 8
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar12Extreme
Apr11Extreme
May12Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Ban Phan Don 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 Ban Phan Don is worst in March — around 65 µg/m³ PM2.5 (unhealthy), about 2.4× the cleanest month (July, 27 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorModerateMar 1664 µg/m³Jul 1227 µg/m³
PM2.5 (µg/m³)Level
Jan42Poor
Feb54Poor
Mar65Unhealthy
Apr52Poor
May36Poor
Jun28Moderate
Jul27Moderate
Aug29Moderate
Sep34Moderate
Oct37Poor
Nov35Poor
Dec34Moderate
Location & terrain

Where is Ban Phan Don?

Ban Phan Don sits at 17.1°N, 103.0°E, 180 m above sea level, in Thailand. The nearest listed city is Ban Nong Wua So, 30 km away.

Topography around Ban Phan Don

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

Within 3 km, the terrain around Ban Phan Don has only modest variations in elevation — a maximum elevation change of 26 m around an average of 172 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 77 m; within 80 km, significant variations in elevation — a maximum elevation change of 519 m.

The land around Ban Phan Don is covered by cropland (69%) within 3 km, cropland (72%) within 16 km, and cropland (67%) and trees (27%) within 80 km.

3 km
26 m
16 km
77 m
80 km
519 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Ban Nong Wua So 30 km · Udon Thani 36 km · Kut Chap 53 km · Nong Bua Lamphu 57 km · Sawang Daen Din 63 km · Nong Kung Si 65 km · Ban Dung 69 km · Warichaphum 73 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 Ban Phan Don (17.1427°, 102.9726°, elevation 180 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).