Nakhon Si Thammarat weather in July

In July, Nakhon Si Thammarat sees average daytime highs of 31°C and overnight lows near 25°C, with 97 mm of rain across 21.4 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 10th-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 4% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of July to 12 h 24 min by month's end. Set against the rest of the year, July is Nakhon Si Thammarat's 10th-clearest and 7th-windiest month. For the whole year in context, see Nakhon Si Thammarat's year-round climate.

Daytime high
31°
4th warmest
Overnight low
25°
9th coldest
Rainfall
97 mm
21.4 wet days
Daylight
12 h 24 min
6:12 AM – 6:39 PM
Cloud cover
84%
10th clearest
Wind
7 km/h
7th windiest
Solar energy
5.18 kWh/m²
Travel score
3.2
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 July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical July day in Nakhon Si Thammarat reaches about 31°C in the afternoon and slips back to 25°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, July runs on par with June and on par with August.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13126
23126
33126
43125
53125
63125
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243125
253125
263125
273125
283125
293125
303125
313125

How July really feels in Nakhon Si Thammarat

Once humidity and wind are folded in, July 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
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Nakhon Si Thammarat weather by month

How July compares with the rest of the year at a glance. July is the 4th-warmest and 10th-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 9% of July, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11288
21387
31387
41387
51387
61387
71387
81387
91387
101486
111486
121486
131486
141585
151585
161585
171684
181585
191585
201585
211585
221486
231486
241387
251387
261387
271387
281288
291288
301288
311288

Chance of precipitation in July

Any precipitation

Nakhon Si Thammarat gets around 97 mm of rain over 21.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 69% and peaks near 73% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
167
268
368
469
570
670
771
871
972
1072
1173
1273
1372
1472
1572
1671
1771
1870
1970
2069
2168
2268
2367
2467
2566
2666
2766
2865
2965
3065
3166

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 80% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
17624
27723
37822
47822
57822
67921
77921
87822
97822
107822
117822
127822
137723
147723
157723
167723
177822
187822
197822
207921
218020
228020
238119
248218
258317
268416
278515
288614
298614
308713
318713

Wind in July

Winds average 7 km/h in July.

Across July, 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 July

DaylightNight

Daylight runs from about 12 h 30 min at the start of July to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over July. Sunrise moves from 6:09 AM to 6:15 AM, and sunset from 6:38 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.56:096:38
212.56:096:38
312.56:096:38
412.56:106:38
512.56:106:39
612.56:106:39
712.56:106:39
812.56:116:39
912.56:116:39
1012.56:116:39
1112.56:116:39
1212.56:116:39
1312.56:126:39
1412.56:126:39
1512.56:126:39
1612.46:126:39
1712.46:136:39
1812.46:136:39
1912.46:136:39
2012.46:136:39
2112.46:136:39
2212.46:146:39
2312.46:146:39
2412.46:146:39
2512.46:146:39
2612.46:146:38
2712.46:146:38
2812.46:146:38
2912.46:156:38
3012.46:156:38
3112.46:156:38

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.18 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 — July's 5.18 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in July

Hazard calendar for Nakhon Si Thammarat

In seasonPeak

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

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 July a good time to visit Nakhon Si Thammarat?

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

3.2
Sightseeing
7th-best month of the year
4.7
Beach & pool
6th-best month of the year

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

What to pack for Nakhon Si Thammarat in July

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

In July, Nakhon Si Thammarat sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

Sea temperature near Nakhon Si Thammarat in July

The nearest coast averages about 30°C in July — 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 July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 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 July

GoodModeratePoorUnhealthyVery unhealthy

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