Nakhon Sawan weather in April

In April, Nakhon Sawan sees average daytime highs of 38°C and overnight lows near 27°C, with 62 mm of rain across 11.4 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 38°C through the month. The sky is clear or mostly clear about 41% 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 Nakhon Sawan's 6th-clearest and 4th-windiest month. For the whole year in context, see Nakhon Sawan's year-round climate.

Daytime high
38°
1st warmest
Overnight low
27°
11th coldest
Rainfall
62 mm
11.4 wet days
Daylight
12 h 24 min
6:09 AM – 6:30 PM
Cloud cover
52%
6th clearest
Wind
8 km/h
4th windiest
Solar energy
6.25 kWh/m²
Travel score
1.1
out of 10

Nakhon Sawan is city in Nakhon Sawan province, Thailand.

Air quality
High
PM2.5 28 µg/m³ · 2019
Density
2,953/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 38°C through the month.

A typical April day in Nakhon Sawan reaches about 38°C in the afternoon and slips back to 27°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 34°C and 41°C. Set against its neighbours, April runs about 1°C warmer than March and about 1°C warmer than May.

20°25°30°35°40°45°151015202530
Avg high (°C)Avg low (°C)
13726
23826
33827
43827
53827
63827
73827
83827
93827
103827
113827
123827
133827
143827
153827
163827
173827
183827
193827
203827
213827
223828
233828
243828
253828
263828
273828
283828
293828
303828

How April really feels in Nakhon Sawan

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.

Nakhon Sawan 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
Jan33° / 21°10211.24.6
Feb35° / 23°11211.53.2
Mar37° / 25°386.211.91.8
Apr38° / 27°6211.412.31.1
May36° / 27°1562112.71.3
Jun35° / 27°14723.312.91.5
Jul35° / 27°16123.512.81.8
Aug34° / 26°21525.112.51.9
Sep33° / 26°27225.912.12.0
Oct33° / 25°14317.111.63.1
Nov32° / 23°244.711.34.3
Dec32° / 21°81.211.15.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 20% of April, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16733
26832
36832
46832
56733
66733
76634
86634
96535
106436
116337
126337
136238
146238
156139
166040
176040
185941
195941
205842
215842
225743
235743
245644
255644
265545
275446
285347
295248
305050

Chance of precipitation in April

Any precipitation

Nakhon Sawan gets around 62 mm of rain over 11.4 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 38% and peaks near 55% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
131
231
331
431
531
631
731
831
932
1032
1132
1233
1333
1433
1534
1635
1736
1837
1938
2040
2142
2243
2345
2446
2548
2649
2751
2852
2954
3055

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
14166812
23166813
33156814
43156715
53146716
63146617
73146518
83146419
92146420
102146321
112136421
122136322
132136322
142136223
151126323
161126324
171116424
181116325
191106326
20196327
21196228
22186229
23086131
24076132
25075934
26065836
27065539
28065341
29055243
30054946

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 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
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 6:20 AM to 6:00 AM, and sunset from 6:28 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:206:28
212.16:196:28
312.26:196:28
412.26:186:28
512.26:176:29
612.26:166:29
712.26:166:29
812.26:156:29
912.36:146:29
1012.36:136:29
1112.36:136:29
1212.36:126:30
1312.36:116:30
1412.36:106:30
1512.36:106:30
1612.46:096:30
1712.46:086:30
1812.46:086:31
1912.46:076:31
2012.46:066:31
2112.46:066:31
2212.46:056:31
2312.56:056:32
2412.56:046:32
2512.56:036:32
2612.56:036:32
2712.56:026:32
2812.56:026:33
2912.56:016:33
3012.56:006:33

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 6.25 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.49 kWh/m² to a high of 6.25 kWh/m² in April across the year — April's 6.25 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.1Intense
276.1Intense
286.1Intense
296.0Intense
306.0Intense
Planning a trip in April

Hazard calendar for Nakhon Sawan

In seasonPeak

In April, Nakhon Sawan sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Nakhon Sawan sits in the Pacific typhoon belt; the season peaks July–October.

Nakhon Sawan's monsoon runs May–October, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Nakhon Sawan?

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

1.1
Sightseeing
12th-best month of the year
3.6
Beach & pool
10th-best month of the year

April is a weaker month for outdoor sightseeing in Nakhon Sawan.

What to pack for Nakhon Sawan in April

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

In April, Nakhon Sawan sees daytime highs around 38°C and nights near 27°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

UV index in Nakhon Sawan 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 Nakhon Sawan peaks around August 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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 15UV 13Dec 12UV 8
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar12Extreme
Apr10Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct10Very high
Nov8Very high
Dec8Very high

Air quality in Nakhon Sawan 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 Nakhon Sawan is worst in March — around 41 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (June, 18 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Nakhon Sawan's WHO annual average of 28 µg/m³.

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMar 1240 µg/m³Jun 2218 µg/m³
PM2.5 (µg/m³)Level
Jan37Poor
Feb39Poor
Mar41Poor
Apr34Moderate
May25Moderate
Jun18Moderate
Jul18Moderate
Aug19Moderate
Sep22Moderate
Oct26Moderate
Nov27Moderate
Dec32Moderate
Location & terrain

Where is Nakhon Sawan?

Nakhon Sawan sits at 15.7°N, 100.1°E, 31 m above sea level, in Thailand. The nearest listed city is Lat Yao, 38 km away.

Topography around Nakhon Sawan

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

Within 3 km, the terrain around Nakhon Sawan has only modest variations in elevation — a maximum elevation change of 150 m around an average of 31 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 194 m; within 80 km, large variations in elevation — a maximum elevation change of 756 m.

The land around Nakhon Sawan is covered by artificial surfaces (37%), trees (26%) and cropland (20%) within 3 km, cropland (61%) within 16 km, and cropland (85%) within 80 km.

3 km
150 m
16 km
194 m
80 km
756 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
April weather nearby: Lat Yao 38 km · Thap Than 38 km · Uthai Thani 38 km · Bang Mun Nak 44 km · Khanu Woralaksaburi 50 km · Chai Nat 58 km · Taphan Hin 65 km · Thap Khlo 71 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 Nakhon Sawan (15.7047°, 100.1372°, elevation 31 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).