Phanat Nikhom weather in September

In September, Phanat Nikhom sees average daytime highs of 32°C and overnight lows near 25°C, with 282 mm of rain across 26.5 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 1% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 18 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Phanat Nikhom's 9th-clearest and 11th-windiest month. For the whole year in context, see Phanat Nikhom's year-round climate.

Daytime high
32°
10th warmest
Overnight low
25°
7th coldest
Rainfall
282 mm
26.5 wet days
Daylight
12 h 06 min
6:07 AM – 6:12 PM
Cloud cover
87%
9th clearest
Wind
7 km/h
11th windiest
Solar energy
4.39 kWh/m²
Travel score
2.3
out of 10

Phanat Nikhom is town in Chon Buri province, Thailand.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical September day in Phanat Nikhom reaches about 32°C in the afternoon and slips back to 25°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13226
23226
33226
43226
53226
63226
73226
83226
93226
103225
113225
123225
133225
143225
153225
163225
173225
183225
193225
203225
213225
223225
233225
243225
253225
263225
273225
283225
293225
303225

How September really feels in Phanat Nikhom

Once humidity and wind are folded in, September 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 September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Phanat Nikhom weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°17411.34.7
Feb33° / 23°214.811.63.9
Mar34° / 25°6311.611.93.0
Apr34° / 26°981612.32.4
May34° / 26°18223.512.62.1
Jun33° / 26°17522.812.82.3
Jul32° / 26°17424.412.72.4
Aug32° / 26°19625.512.42.4
Sep32° / 25°28226.512.12.3
Oct32° / 25°17819.711.73.1
Nov32° / 24°345.511.44.4
Dec32° / 22°81.911.25.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 6% of September, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1694
2694
3694
4694
5694
6694
7694
8694
9694
10694
11694
12694
13694
14694
15694
16694
17793
18793
19793
20991
21991
221090
231090
241090
251189
261189
271189
281189
291288
301387

Chance of precipitation in September

Any precipitation

Phanat Nikhom gets around 282 mm of rain over 26.5 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 89% and peaks near 90% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
186
286
387
487
588
688
789
889
989
1090
1190
1290
1390
1490
1590
1690
1790
1890
1990
2089
2189
2289
2389
2489
2588
2688
2788
2888
2988
3088

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 91% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11090
21090
31090
41090
51189
61189
71189
81189
91189
101189
111090
121090
131090
141090
151090
16991
17991
18892
19892
20892
21892
22793
23793
24892
25892
26892
27892
28991
29991
30991

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 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
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 18 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over September. Sunrise moves from 6:07 AM to 6:08 AM, and sunset from 6:23 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:076:23
212.36:076:22
312.26:076:21
412.26:076:21
512.26:076:20
612.26:076:19
712.26:076:19
812.26:076:18
912.26:076:17
1012.26:076:16
1112.16:076:16
1212.16:076:15
1312.16:076:14
1412.16:076:13
1512.16:076:13
1612.16:076:12
1712.16:076:11
1812.06:076:10
1912.06:076:10
2012.06:076:09
2112.06:076:08
2212.06:076:07
2312.06:076:07
2412.06:086:06
2512.06:086:05
2611.96:086:04
2711.96:086:04
2811.96:086:03
2911.96:086:02
3011.96:086:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.39 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.39 kWh/m² to a high of 5.83 kWh/m² in April across the year — September's 4.39 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in September

Hazard calendar for Phanat Nikhom

In seasonPeak

In September, Phanat Nikhom sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

Phanat Nikhom sits in the Pacific typhoon belt; the season peaks July–October.

Phanat Nikhom's rainy season runs May–October, when most of the year's rain falls.

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

Is September a good time to visit Phanat Nikhom?

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

2.3
Sightseeing
10th-best month of the year
3.7
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Phanat Nikhom.

What to pack for Phanat Nikhom in September

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

In September, Phanat Nikhom sees daytime highs around 32°C and nights near 25°C. Pack light clothes and rain gear. About 27 days see rain.

light clothesrain gear

Sea temperature near Phanat Nikhom in September

The nearest coast averages about 29°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 34 km away) is warmest in May at about 31°C and coldest in January near 27°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
Jan27Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Phanat Nikhom in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Phanat Nikhom peaks around August 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeExtremeVery highAug 15UV 13Dec 13UV 9
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar12Extreme
Apr12Extreme
May9Very high
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct10Very high
Nov9Very high
Dec9Very high

Air quality in Phanat Nikhom in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Phanat Nikhom is worst in January — around 67 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (June, 34 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorPoorPoorJan 2366 µg/m³Jun 2034 µg/m³
PM2.5 (µg/m³)Level
Jan67Unhealthy
Feb65Unhealthy
Mar53Poor
Apr47Poor
May40Poor
Jun34Moderate
Jul36Poor
Aug36Poor
Sep47Poor
Oct57Unhealthy
Nov53Poor
Dec47Poor
Location & terrain

Where is Phanat Nikhom?

Phanat Nikhom sits at 13.4°N, 101.2°E, 12 m above sea level, in Thailand. The nearest listed city is Phan Thong, 10 km away.

Topography around Phanat Nikhom

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

Within 3 km, the terrain around Phanat Nikhom has only modest variations in elevation — a maximum elevation change of 35 m around an average of 10 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 102 m; within 80 km, large variations in elevation — a maximum elevation change of 956 m.

The land around Phanat Nikhom is covered by trees (39%), artificial surfaces (23%) and cropland (22%) within 3 km, cropland (35%) and trees (31%) within 16 km, and trees (43%) and cropland (22%) within 80 km.

3 km
35 m
16 km
102 m
80 km
956 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Phan Thong 10 km · Ban Bueng 17 km · Bang Pakong 23 km · Chon Buri 24 km · Chachoengsao 30 km · Ban Ang Sila 30 km · Phanom Sarakham 38 km · Si Racha 41 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 Phanat Nikhom (13.4466°, 101.1845°, elevation 12 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).