Surin weather in April

In April, Surin sees average daytime highs of 36°C and overnight lows near 26°C, with 71 mm of rain across 11.6 wet days and about 12.3 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 36°C through the month. The sky is clear or mostly clear about 33% 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 30 min by month's end. Set against the rest of the year, April is Surin's 6th-clearest and 11th-windiest month. For the whole year in context, see Surin's year-round climate.

Daytime high
36°
1st warmest
Overnight low
26°
10th coldest
Rainfall
71 mm
11.6 wet days
Daylight
12 h 18 min
5:56 AM – 6:16 PM
Cloud cover
57%
6th clearest
Wind
8 km/h
11th windiest
Solar energy
6.13 kWh/m²
Travel score
1.9
out of 10

Surin is town in Surin province, Thailand.

Density
4,098/km²
people per km²

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 36°C through the month.

A typical April day in Surin reaches about 36°C in the afternoon and slips back to 26°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 33°C and 39°C. Set against its neighbours, April runs on par with March and about 1°C warmer than May.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13625
23625
33625
43625
53625
63626
73626
83626
93626
103626
113626
123626
133626
143626
153626
163626
173626
183626
193626
203626
213626
223626
233626
243626
253626
263626
273626
283626
293626
303626

How April really feels in Surin

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.

Surin 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
Jan31° / 19°61.611.25.6
Feb33° / 21°112.311.54.2
Mar35° / 24°346.111.92.6
Apr36° / 26°7111.612.31.9
May35° / 26°15120.512.71.9
Jun34° / 26°13920.312.92.1
Jul33° / 26°17322.712.82.3
Aug32° / 25°21224.312.52.4
Sep32° / 25°2632512.12.6
Oct31° / 24°12915.311.73.8
Nov31° / 22°334.711.35.1
Dec30° / 19°71.811.16.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 22% of April, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16337
26238
36238
46337
56238
66238
76139
86139
96040
106040
115842
125842
135842
145743
155644
165644
175446
185446
195347
205248
215149
225149
235050
245050
254951
264852
274852
284753
294654
304555

Chance of precipitation in April

Any precipitation

Surin gets around 71 mm of rain over 11.6 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 39% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
130
230
330
431
531
631
732
832
932
1033
1133
1233
1334
1434
1535
1636
1737
1838
1940
2041
2143
2244
2346
2447
2549
2650
2752
2853
2955
3056

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 70% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12426653
22425663
32425663
42324674
52324674
61324675
71323685
81323676
91223686
101222687
111221697
121221688
131220698
141219708
151218718
161217719
171216729
1812157210
1902147410
2002137411
2102127412
2202117413
2301107514
2401107415
250197317
260197119
270197020
280186922
290186724
300086626

Wind in April

Winds average 8 km/h in April.

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

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 06 min at the start of April to 12 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over April. Sunrise moves from 6:07 AM to 5:48 AM, and sunset from 6:14 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:076:14
212.16:066:15
312.26:056:15
412.26:056:15
512.26:046:15
612.26:036:15
712.26:036:15
812.26:026:15
912.26:016:15
1012.36:006:15
1112.36:006:16
1212.35:596:16
1312.35:586:16
1412.35:586:16
1512.35:576:16
1612.35:566:16
1712.35:566:16
1812.45:556:17
1912.45:546:17
2012.45:546:17
2112.45:536:17
2212.45:526:17
2312.45:526:17
2412.45:516:18
2512.55:516:18
2612.55:506:18
2712.55:506:18
2812.55:496:18
2912.55:486:19
3012.55:486:19

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.13 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.5 kWh/m² to a high of 6.13 kWh/m² in April across the year — April's 6.13 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.0Intense
286.0Intense
296.0Intense
306.0Bright
Planning a trip in April

Hazard calendar for Surin

In seasonPeak

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

Surin'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 Surin?

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

1.9
Sightseeing
11th-best month of the year
4.6
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Surin.

What to pack for Surin in April

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

In April, Surin sees daytime highs around 36°C and nights near 26°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

UV index in Surin in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Surin peaks around August 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 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 13UV 13Nov 21UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep11Extreme
Oct11Extreme
Nov8Very high
Dec8Very high

Air quality in Surin 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 Surin is worst in March — around 54 µg/m³ PM2.5 (poor), about 2.5× the cleanest month (June, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMar 1452 µg/m³Jun 2121 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb47Poor
Mar54Poor
Apr40Poor
May28Moderate
Jun21Moderate
Jul23Moderate
Aug23Moderate
Sep27Moderate
Oct30Moderate
Nov25Moderate
Dec22Moderate
Location & terrain

Where is Surin?

Surin sits at 14.9°N, 103.5°E, 150 m above sea level, in Thailand. The nearest listed city is Buri Ram, 44 km away.

Ban Huai ThalaengSi Sa KetAnlong Veaeng

Topography around Surin

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

Within 3 km, the terrain around Surin has only modest variations in elevation — a maximum elevation change of 31 m around an average of 148 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 53 m; within 80 km, significant variations in elevation — a maximum elevation change of 501 m.

The land around Surin is covered by trees (37%) and artificial surfaces (35%) within 3 km, cropland (68%) and trees (20%) within 16 km, and cropland (76%) within 80 km.

3 km
31 m
16 km
53 m
80 km
501 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Buri Ram 44 km · Prakhon Chai 50 km · Samraong 78 km · Nang Rong 80 km · Kaset Wisai 87 km · Ban Huai Thalaeng 91 km · Si Sa Ket 93 km · Anlong Veaeng 96 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 Surin (14.8818°, 103.4936°, elevation 150 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).