Nakhon Si Thammarat weather in April

In April, Nakhon Si Thammarat sees average daytime highs of 31°C and overnight lows near 26°C, with 120 mm of rain across 16.8 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 25% of the time in April, and the air most often feels miserable.

Daylight stretches from about 12 h 06 min at the start of April to 12 h 18 min by month's end. Set against the rest of the year, April is Nakhon Si Thammarat's 3rd-clearest and 6th-windiest month. For the whole year in context, see Nakhon Si Thammarat's year-round climate.

Daytime high
31°
3rd warmest
Overnight low
26°
11th coldest
Rainfall
120 mm
16.8 wet days
Daylight
12 h 12 min
6:15 AM – 6:26 PM
Cloud cover
63%
3rd clearest
Wind
7 km/h
6th windiest
Solar energy
5.99 kWh/m²
Travel score
3.8
out of 10

Nakhon Si Thammarat is city in Nakhon Si Thammarat province, Thailand.

Density
4,528/km²
people per km²
Founded
1910

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 31°C through the month.

A typical April day in Nakhon Si Thammarat reaches about 31°C in the afternoon and slips back to 26°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°C. Set against its neighbours, April runs about 1°C warmer than March and on par with May.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13025
23025
33026
43126
53126
63126
73126
83126
93126
103126
113126
123126
133126
143126
153126
163126
173126
183126
193126
203126
213126
223126
233126
243126
253126
263126
273126
283126
293126
303126

How April really feels in Nakhon Si Thammarat

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
heat index over the day's high
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 Si Thammarat weather by month

How April compares with the rest of the year at a glance. April is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°12416.811.65.2
Feb29° / 24°589.911.75.5
Mar30° / 25°12013.711.94.7
Apr31° / 26°12016.812.23.8
May31° / 26°12323.312.42.9
Jun31° / 26°9321.112.53.1
Jul31° / 25°9721.412.43.2
Aug31° / 25°11722.712.33.2
Sep30° / 25°14925.9123.0
Oct29° / 25°27428.211.83.1
Nov28° / 25°35825.711.63.6
Dec28° / 24°2502011.54.7

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 19% of April, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14753
24852
34852
44753
54654
64654
74654
84555
94555
104555
114555
124555
134654
144654
154654
164555
174555
184555
194555
204456
214357
224258
234159
244060
253862
263763
273664
283664
293367
303268

Chance of precipitation in April

Any precipitation

Nakhon Si Thammarat gets around 120 mm of rain over 16.8 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 56% and peaks near 66% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
156
256
355
455
554
654
753
853
953
1052
1152
1252
1352
1452
1552
1653
1753
1854
1955
2056
2157
2258
2359
2460
2561
2662
2763
2864
2965
3066

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the miserable band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
16139
25941
35941
45842
55743
65644
75545
85446
95347
105248
115149
125050
134852
144753
154555
164456
174258
184159
193961
203763
213664
223466
233268
243070
252971
262872
272773
282674
292575
302575

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
18calm
28calm
38calm
48calm
58calm
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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 06 min at the start of April to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over April. Sunrise moves from 6:23 AM to 6:09 AM, and sunset from 6:27 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:236:27
212.16:226:27
312.16:226:27
412.16:216:27
512.16:206:27
612.16:206:26
712.16:196:26
812.16:196:26
912.16:186:26
1012.16:186:26
1112.16:176:26
1212.26:176:26
1312.26:166:26
1412.26:166:26
1512.26:156:26
1612.26:156:26
1712.26:146:26
1812.26:146:26
1912.26:136:26
2012.26:136:26
2112.26:126:26
2212.26:126:26
2312.26:126:26
2412.26:116:26
2512.36:116:26
2612.36:106:26
2712.36:106:26
2812.36:106:26
2912.36:096:26
3012.36:096:26

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.99 kWh/m².

For context, solar energy here swings from a low near 3.87 kWh/m² to a high of 6.01 kWh/m² in March across the year — April's 5.99 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
26.0Bright
36.0Bright
46.0Bright
56.0Bright
66.0Intense
76.0Intense
86.0Intense
96.0Intense
106.0Intense
116.1Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.0Intense
206.0Intense
216.0Intense
226.0Bright
236.0Bright
245.9Bright
255.9Bright
265.9Bright
275.8Bright
285.8Bright
295.8Bright
305.7Bright
Planning a trip in April

Hazard calendar for Nakhon Si Thammarat

In seasonPeak

In April, Nakhon Si Thammarat sits inside its cyclone season. The full year is below, with each hazard's peak months called out.

Nakhon Si Thammarat sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Nakhon Si Thammarat's rainy season runs October–December, when most of the year's rain falls.

Cyclone
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Nakhon Si Thammarat?

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

3.8
Sightseeing
5th-best month of the year
5.5
Beach & pool
4th-best month of the year

April is a weaker month for outdoor sightseeing in Nakhon Si Thammarat.

What to pack for Nakhon Si Thammarat in April

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

In April, Nakhon Si Thammarat sees daytime highs around 31°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Nakhon Si Thammarat in April

The nearest coast averages about 30°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 28 km away) is warmest in May at about 31°C and coldest in January near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Nakhon Si Thammarat in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 13 (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 Si Thammarat peaks around August 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 10 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeAug 22UV 13Jan 10UV 10
UV index (midday)Level
Jan10Very high
Feb13Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov10Extreme
Dec10Extreme

Air quality in Nakhon Si Thammarat 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 Si Thammarat is worst in April — around 28 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1727 µg/m³Aug 1722 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb22Moderate
Mar24Moderate
Apr28Moderate
May25Moderate
Jun26Moderate
Jul24Moderate
Aug22Moderate
Sep24Moderate
Oct26Moderate
Nov25Moderate
Dec22Moderate
Location & terrain

Where is Nakhon Si Thammarat?

Nakhon Si Thammarat sits at 8.4°N, 100.0°E, 8 m above sea level, in Thailand. The nearest listed city is Pak Phanang, 27 km away.

Surat Thani

Topography around Nakhon Si Thammarat

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

Within 3 km, the terrain around Nakhon Si Thammarat has only modest variations in elevation — a maximum elevation change of 28 m around an average of 6 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 565 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,772 m.

The land around Nakhon Si Thammarat is covered by artificial surfaces (38%), trees (37%) and grassland (21%) within 3 km, trees (58%) within 16 km, and trees (59%) and water (34%) within 80 km.

3 km
28 m
16 km
565 m
80 km
1,772 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
April weather nearby: Pak Phanang 27 km · Ron Phibun 31 km · Thung Song 43 km · Ban Na San 78 km · Huai Yot 80 km · Ranot 83 km · Phatthalung 91 km · Surat Thani 105 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 Si Thammarat (8.4333°, 99.9667°, elevation 8 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). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).