Sawankhalok weather in May

In May, Sawankhalok sees average daytime highs of 36°C and overnight lows near 27°C, with 201 mm of rain across 19 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 38°C in the first days to 35°C by the end. The sky is clear or mostly clear about 18% 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 Sawankhalok's 8th-clearest and 5th-windiest month. For the whole year in context, see Sawankhalok's year-round climate.

Daytime high
36°
3rd warmest
Overnight low
27°
12th coldest
Rainfall
201 mm
19 wet days
Daylight
12 h 48 min
5:53 AM – 6:41 PM
Cloud cover
72%
8th clearest
Wind
7 km/h
5th windiest
Solar energy
5.48 kWh/m²
Travel score
1.4
out of 10

Sawankhalok is town in Sukhothai province, Thailand.

Founded
1937

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 38°C in the first days to 35°C by the end.

A typical May day in Sawankhalok 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 32°C and 41°C. Set against its neighbours, May runs about 2°C cooler than April and about 2°C warmer than June.

25°30°35°40°45°151015202531
Avg high (°C)Avg low (°C)
13828
23828
33828
43828
53828
63728
73728
83728
93728
103727
113727
123727
133727
143727
153627
163627
173627
183627
193627
203627
213627
223627
233627
243627
253627
263627
273627
283627
293527
303527
313527

How May really feels in Sawankhalok

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.

Sawankhalok 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
Jan32° / 19°162.311.14.9
Feb35° / 21°101.111.43.3
Mar38° / 24°313.711.91.5
Apr39° / 27°638.912.40.7
May36° / 27°2011912.81.4
Jun35° / 27°18020.4131.9
Jul34° / 27°18421.312.92.2
Aug33° / 26°23122.812.62.3
Sep33° / 26°22422.712.12.2
Oct33° / 25°13114.811.63.1
Nov33° / 23°274.111.24.3
Dec32° / 20°132115.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% 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 69%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25644
35446
45347
55149
64951
74753
84555
94357
104159
113862
123763
133367
143268
153070
162872
172674
182575
192377
202278
212179
222080
231981
241882
251684
261684
271684
281486
291486
301387
311288

Chance of precipitation in May

Any precipitation

Sawankhalok gets around 201 mm of rain over 19 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 61% and peaks near 69% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
148
249
350
451
552
653
754
855
956
1058
1159
1261
1362
1463
1564
1665
1765
1866
1966
2066
2166
2266
2367
2467
2567
2667
2767
2867
2968
3069
3169

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 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
1165430
2165232
3155134
4144936
5144838
6134740
7124642
8114544
9104446
1094348
1184250
1274152
1364054
1463955
1553857
1643759
1743660
1833562
1933562
2023464
2123365
2223266
2323167
2423167
2523068
2622969
2722870
2812772
2912673
3012574
3112475

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 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 5:59 AM to 5:50 AM, and sunset from 6:36 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:596:36
212.65:596:37
312.65:586:37
412.75:586:37
512.75:576:38
612.75:576:38
712.75:566:38
812.75:566:38
912.75:556:39
1012.75:556:39
1112.75:556:39
1212.85:546:40
1312.85:546:40
1412.85:536:40
1512.85:536:41
1612.85:536:41
1712.85:526:42
1812.85:526:42
1912.85:526:42
2012.95:516:43
2112.95:516:43
2212.95:516:43
2312.95:516:44
2412.95:516:44
2512.95:506:44
2612.95:506:45
2712.95:506:45
2812.95:506:45
2912.95:506:46
3012.95:506:46
3113.05:506:47

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.48 kWh/m².

For context, solar energy here swings from a low near 4.06 kWh/m² to a high of 6.39 kWh/m² in April across the year — May's 5.48 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.0Bright
45.9Bright
55.9Bright
65.8Bright
75.8Bright
85.8Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.5Bright
145.5Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Hazard calendar for Sawankhalok

In seasonPeak

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

Sawankhalok'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 Sawankhalok?

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

1.4
Sightseeing
11th-best month of the year
3.5
Beach & pool
11th-best month of the year

May is a weaker month for outdoor sightseeing in Sawankhalok.

What to pack for Sawankhalok in May

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

In May, Sawankhalok sees daytime highs around 36°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

UV index in Sawankhalok 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 Sawankhalok peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 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 12UV 13Dec 11UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar10Extreme
Apr10Extreme
May12Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Very high
Nov8Very high
Dec7Very high

Air quality in Sawankhalok 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 Sawankhalok is worst in March — around 58 µg/m³ PM2.5 (unhealthy), about 2.8× the cleanest month (June, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorPoorModeratePoorMar 1556 µg/m³Jun 2221 µg/m³
PM2.5 (µg/m³)Level
Jan43Poor
Feb50Poor
Mar58Unhealthy
Apr47Poor
May29Moderate
Jun21Moderate
Jul22Moderate
Aug23Moderate
Sep26Moderate
Oct31Moderate
Nov33Moderate
Dec37Poor
Location & terrain

Where is Sawankhalok?

Sawankhalok sits at 17.3°N, 99.8°E, 67 m above sea level, in Thailand. The nearest listed city is Si Satchanalai, 24 km away.

Topography around Sawankhalok

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

Within 3 km, the terrain around Sawankhalok has only modest variations in elevation — a maximum elevation change of 27 m around an average of 61 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 253 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,205 m.

The land around Sawankhalok is covered by cropland (51%) and trees (32%) within 3 km, cropland (74%) and trees (22%) within 16 km, and trees (53%) and cropland (44%) within 80 km.

3 km
27 m
16 km
253 m
80 km
1,205 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Si Satchanalai 24 km · Sukhothai 34 km · Ban Na 35 km · Uttaradit 44 km · Bang Rakam 69 km · Phitsanulok 71 km · Ban Aranyik 73 km · Thoen 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 Sawankhalok (17.316°, 99.8319°, elevation 67 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).