Sawankhalok weather in April

In April, Sawankhalok sees average daytime highs of 39°C and overnight lows near 27°C, with 63 mm of rain across 8.9 wet days and about 12.4 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 39°C through the month. The sky is clear or mostly clear about 53% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of April to 12 h 36 min by month's end. Set against the rest of the year, April is Sawankhalok's 6th-clearest and 3rd-windiest month. For the whole year in context, see Sawankhalok's year-round climate.

Daytime high
39°
1st warmest
Overnight low
27°
11th coldest
Rainfall
63 mm
8.9 wet days
Daylight
12 h 24 min
6:09 AM – 6:33 PM
Cloud cover
44%
6th clearest
Wind
7 km/h
3rd windiest
Solar energy
6.39 kWh/m²
Travel score
0.7
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 April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 39°C through the month.

A typical April day in Sawankhalok reaches about 39°C in the afternoon and slips back to 27°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 35°C and 42°C. Set against its neighbours, April runs about 1°C warmer than March and about 2°C warmer than May.

20°25°30°35°40°45°151015202530
Avg high (°C)Avg low (°C)
13826
23926
33926
43926
53926
63927
73927
83927
93927
103927
113927
123927
133927
143927
153927
163927
173927
183927
193928
203928
213928
223928
233928
243928
253928
263928
273828
283828
293828
303828

How April really feels in Sawankhalok

Once humidity and wind are folded in, April averages 30 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
30
30 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

The story in April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Sawankhalok weather by month

How April compares with the rest of the year at a glance. April is the 1st-warmest and 7th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 17% of April, with mostly cloudy or overcast conditions the remaining 30%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17723
27723
37723
47723
57723
67624
77525
87525
97327
107327
117228
127228
137228
147129
157129
167030
177030
186931
196931
206832
216832
226733
236733
246733
256634
266436
276337
286238
296040
305941

Chance of precipitation in April

Any precipitation

Sawankhalok gets around 63 mm of rain over 8.9 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 30% and peaks near 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
119
219
320
420
521
621
722
822
923
1023
1124
1224
1325
1425
1526
1627
1728
1830
1931
2032
2134
2236
2337
2439
2540
2642
2744
2845
2946
3047

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the oppressive band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11939483
21839493
31838494
41737514
51736515
61735525
71734526
81734526
91633537
101632538
111532548
121531549
130531559
1404305610
1504305610
1603295711
1703295612
1803285613
1902275813
2002265814
2102255716
2201245817
2301235818
2401225819
2501215721
2601215622
2700205624
2800195625
2900185527
3000175429

Wind in April

Winds average 7 km/h in April.

Across April, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 06 min at the start of April to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over April. Sunrise moves from 6:21 AM to 6:00 AM, and sunset from 6:30 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:216:30
212.26:206:30
312.26:196:30
412.26:186:30
512.26:186:30
612.26:176:31
712.26:166:31
812.36:156:31
912.36:146:31
1012.36:146:31
1112.36:136:32
1212.36:126:32
1312.36:116:32
1412.46:116:32
1512.46:106:32
1612.46:096:33
1712.46:086:33
1812.46:086:33
1912.46:076:33
2012.56:066:34
2112.56:066:34
2212.56:056:34
2312.56:046:34
2412.56:046:34
2512.56:036:35
2612.56:026:35
2712.66:026:35
2812.66:016:36
2912.66:016:36
3012.66:006:36

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.39 kWh/m² — the sunniest month for solar.

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 — April's 6.39 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.1Intense
306.1Intense
Planning a trip in April

Hazard calendar for Sawankhalok

In seasonPeak

None of Sawankhalok's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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 April a good time to visit Sawankhalok?

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

0.7
Sightseeing
12th-best month of the year
3.4
Beach & pool
12th-best month of the year

April is a weaker month for outdoor sightseeing in Sawankhalok.

What to pack for Sawankhalok in April

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

In April, Sawankhalok sees daytime highs around 39°C and nights near 27°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

light clothessun protectionrain gear

UV index in Sawankhalok in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 10 (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 April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April 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
April 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).