Thoen weather in May

In May, Thoen sees average daytime highs of 34°C and overnight lows near 25°C, with 205 mm of rain across 20 wet days and about 12.8 hours of daylight. It is the 3rd-warmest and 3rd-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 16% of the time in May, and the air most often feels oppressive.

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 Thoen's 8th-clearest and 7th-windiest month. For the whole year in context, see Thoen's year-round climate.

Daytime high
34°
3rd warmest
Overnight low
25°
12th coldest
Rainfall
205 mm
20 wet days
Daylight
12 h 48 min
5:55 AM – 6:44 PM
Cloud cover
74%
8th clearest
Wind
6 km/h
7th windiest
Solar energy
5.32 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 Thoen reaches about 34°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 38°C. Set against its neighbours, May runs about 3°C cooler than April and about 2°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13625
23525
33525
43525
53525
63525
73525
83525
93525
103525
113425
123425
133425
143425
153425
163425
173425
183425
193425
203425
213325
223325
233325
243325
253325
263325
273325
283325
293325
303325
313325

How May really feels in Thoen

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
29 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.

Thoen 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
Jan30° / 16°132.211.16.2
Feb33° / 18°71.611.44.4
Mar36° / 21°253.711.92.7
Apr37° / 24°659.512.41.8
May34° / 25°2052012.82.2
Jun32° / 25°17021.2132.6
Jul31° / 24°18222.512.92.8
Aug31° / 24°24225.412.62.7
Sep31° / 24°24624.912.12.7
Oct31° / 23°14818.111.63.9
Nov30° / 20°335.211.25.7
Dec29° / 17°142.2116.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% 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 70%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25248
35149
44951
54852
64753
74555
84357
94159
103862
113763
123565
133268
143169
152971
162872
172674
182575
192278
202179
212080
221981
231882
241882
251684
261684
271486
281486
291288
301288
311189

Chance of precipitation in May

Any precipitation

Thoen gets around 205 mm of rain over 20 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 64% and peaks near 72% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
153
253
354
455
556
656
757
858
959
1060
1162
1263
1364
1465
1566
1667
1767
1868
1968
2069
2169
2270
2370
2470
2571
2671
2771
2871
2971
3072
3172

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12275912
22256013
32246014
42226115
51216216
61196317
71186219
81176220
91156222
101146223
111136224
121116325
131106326
14096427
15086428
16086428
17076429
18066430
19066430
20056431
21056332
22046333
23046333
24046234
25036235
26036136
27036136
28036037
29035938
30026038
31025939

Wind in May

Winds average 6 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
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
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 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 6:01 AM to 5:51 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)
112.66:016:39
212.66:016:39
312.76:006:40
412.76:006:40
512.75:596:40
612.75:596:41
712.75:586:41
812.75:586:41
912.75:576:42
1012.85:576:42
1112.85:576:42
1212.85:566:43
1312.85:566:43
1412.85:556:43
1512.85:556:44
1612.85:556:44
1712.85:546:44
1812.85:546:45
1912.95:546:45
2012.95:536:46
2112.95:536:46
2212.95:536:46
2312.95:536:47
2412.95:536:47
2512.95:526:47
2612.95:526:48
2712.95:526:48
2812.95:526:48
2913.05:526:49
3013.05:526:49
3113.05:516:50

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.32 kWh/m².

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 6.28 kWh/m² in April across the year — May's 5.32 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.8Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.4Bright
135.4Bright
145.3Bright
155.3Bright
165.2Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
304.9Bright
314.9Bright
Planning a trip in May

Hazard calendar for Thoen

In seasonPeak

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

Thoen'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 Thoen?

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

2.2
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 Thoen.

What to pack for Thoen in May

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

In May, Thoen sees daytime highs around 34°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

UV index in Thoen 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 Thoen peaks around August 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 17UV 7
UV index (midday)Level
Jan8Very high
Feb10Extreme
Mar10Very high
Apr11Extreme
May12Extreme
Jun13Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in Thoen 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 Thoen is worst in March — around 61 µg/m³ PM2.5 (unhealthy), about 5.3× the cleanest month (July, 12 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyModerateGoodModerateMar 2160 µg/m³Jul 1512 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb37Poor
Mar61Unhealthy
Apr54Poor
May20Moderate
Jun12Good
Jul12Good
Aug12Good
Sep12Moderate
Oct13Moderate
Nov13Moderate
Dec16Moderate
Location & terrain

Where is Thoen?

Thoen sits at 17.6°N, 99.2°E, 170 m above sea level, in Thailand. The nearest listed city is Si Satchanalai, 59 km away.

UttaraditSukhothai

Topography around Thoen

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

Within 3 km, the terrain around Thoen has only modest variations in elevation — a maximum elevation change of 86 m around an average of 175 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 777 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,829 m.

The land around Thoen is covered by trees (42%) and cropland (34%) within 3 km, trees (79%) within 16 km, and trees (76%) within 80 km.

3 km
86 m
16 km
777 m
80 km
1,829 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Si Satchanalai 59 km · Ban Tak 65 km · Sawankhalok 73 km · Lampang 81 km · Tak 83 km · Ban Na 86 km · Uttaradit 93 km · Sukhothai 93 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 Thoen (17.6129°, 99.2161°, elevation 170 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).