Nong Bua Lamphu weather in September

In September, Nong Bua Lamphu sees average daytime highs of 31°C and overnight lows near 25°C, with 276 mm of rain across 24.6 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 2nd-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 9% 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 Nong Bua Lamphu's 9th-clearest and 12th-windiest month. For the whole year in context, see Nong Bua Lamphu's year-round climate.

Daytime high
31°
8th warmest
Overnight low
25°
7th coldest
Rainfall
276 mm
24.6 wet days
Daylight
12 h 06 min
6:02 AM – 6:07 PM
Cloud cover
81%
9th clearest
Wind
5 km/h
12th windiest
Solar energy
4.44 kWh/m²
Travel score
2.7
out of 10

Nong Bua Lamphu is town in Nong Bua Lam Phu province, Thailand.

Density
871/km²
people per km²

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 31°C through the month.

A typical September day in Nong Bua Lamphu reaches about 31°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 29°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)
13125
23125
33125
43125
53125
63125
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243124
253124
263124
273124
283124
293124
303124

How September really feels in Nong Bua Lamphu

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
heat index over the day's high
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.

Nong Bua Lamphu weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 17°71.211.16.9
Feb32° / 19°132.311.45.3
Mar34° / 22°376.411.93.4
Apr35° / 25°7211.312.42.4
May34° / 26°19721.812.82.2
Jun33° / 26°17821.2132.4
Jul32° / 26°21923.412.92.5
Aug31° / 25°28425.812.62.5
Sep31° / 25°27624.612.12.7
Oct31° / 23°11112.911.64.4
Nov30° / 20°233.311.26.1
Dec28° / 17°70.9117.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 9% of September, with mostly cloudy or overcast conditions the remaining 81%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1793
2793
3793
4793
5892
6991
71090
81090
91189
101288
111288
121486
131486
141684
151783
161981
171981
182179
192179
202476
212476
222575
232773
242872
252971
262971
273070
283367
293367
303565

Chance of precipitation in September

Any precipitation

Nong Bua Lamphu gets around 276 mm of rain over 24.6 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 81% and peaks near 90% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
190
290
390
490
590
690
790
890
989
1089
1188
1288
1387
1486
1585
1684
1782
1881
1980
2078
2177
2276
2374
2473
2571
2670
2769
2867
2966
3064

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 72% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
101387
201486
301486
401585
501585
601684
701684
801783
901882
1001882
1111980
1212079
1312178
1412277
1512376
1622474
1722573
1822672
1932770
2032968
2133067
2233265
2333364
2443561
2543759
2643858
2744056
2854253
2954352
3064450

Wind in September

Winds average 5 km/h in September, the calmest month.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 6:00 AM to 6:04 AM, and sunset from 6:20 PM to 5:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:006:20
212.36:006:19
312.36:006:19
412.36:006:18
512.36:006:17
612.36:006:16
712.26:016:15
812.26:016:14
912.26:016:13
1012.26:016:13
1112.26:016:12
1212.26:016:11
1312.16:016:10
1412.16:016:09
1512.16:026:08
1612.16:026:07
1712.16:026:07
1812.16:026:06
1912.06:026:05
2012.06:026:04
2112.06:026:03
2212.06:026:02
2312.06:036:01
2412.06:036:00
2511.96:036:00
2611.96:035:59
2711.96:035:58
2811.96:035:57
2911.96:035:56
3011.96:045:55

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.44 kWh/m².

For context, solar energy here swings from a low near 4.29 kWh/m² to a high of 6.03 kWh/m² in April across the year — September's 4.44 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.7Bright
Planning a trip in September

Hazard calendar for Nong Bua Lamphu

In seasonPeak

In September, Nong Bua Lamphu sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Nong Bua Lamphu's monsoon runs May–September, when most of the year's rain falls.

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

Is September a good time to visit Nong Bua Lamphu?

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

2.7
Sightseeing
7th-best month of the year
4.2
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Nong Bua Lamphu.

What to pack for Nong Bua Lamphu in September

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

In September, Nong Bua Lamphu sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. About 25 days see rain.

light clothesrain gear

UV index in Nong Bua Lamphu in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Nong Bua Lamphu peaks around August 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 11UV 13Dec 15UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar12Extreme
Apr11Extreme
May12Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec8Very high

Air quality in Nong Bua Lamphu 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 Nong Bua Lamphu is worst in March — around 65 µg/m³ PM2.5 (unhealthy), about 2.4× the cleanest month (July, 27 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorModerateMar 1664 µg/m³Jul 1227 µg/m³
PM2.5 (µg/m³)Level
Jan42Poor
Feb54Poor
Mar65Unhealthy
Apr52Poor
May36Poor
Jun28Moderate
Jul27Moderate
Aug29Moderate
Sep34Moderate
Oct37Poor
Nov35Poor
Dec34Moderate
Location & terrain

Where is Nong Bua Lamphu?

Nong Bua Lamphu sits at 17.2°N, 102.4°E, 217 m above sea level, in Thailand. The nearest listed city is Kut Chap, 28 km away.

Topography around Nong Bua Lamphu

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

Within 3 km, the terrain around Nong Bua Lamphu has significant variations in elevation — a maximum elevation change of 299 m around an average of 232 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 393 m; within 80 km, large variations in elevation — a maximum elevation change of 1,135 m.

The land around Nong Bua Lamphu is covered by trees (45%) and cropland (29%) within 3 km, cropland (51%) and trees (41%) within 16 km, and cropland (58%) and trees (37%) within 80 km.

3 km
299 m
16 km
393 m
80 km
1,135 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Kut Chap 28 km · Na Klang 29 km · Udon Thani 44 km · Erawan 53 km · Ban Phan Don 57 km · Nam Som 68 km · Phu Kradueng 69 km · Wang Saphung 72 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 Nong Bua Lamphu (17.2041°, 102.4407°, elevation 217 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).