San Kamphaeng weather in September

In September, San Kamphaeng sees average daytime highs of 31°C and overnight lows near 24°C, with 227 mm of rain across 23.4 wet days and about 12.1 hours of daylight. It is the 7th-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 5% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 24 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is San Kamphaeng's 9th-clearest and 11th-windiest month. For the whole year in context, see San Kamphaeng's year-round climate.

Daytime high
31°
7th warmest
Overnight low
24°
8th coldest
Rainfall
227 mm
23.4 wet days
Daylight
12 h 06 min
6:15 AM – 6:21 PM
Cloud cover
83%
9th clearest
Wind
4 km/h
11th windiest
Solar energy
4.29 kWh/m²
Travel score
2.8
out of 10

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 San Kamphaeng reaches about 31°C in the afternoon and slips back to 24°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)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273123
283123
293123
303123

How September really feels in San Kamphaeng

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.

San Kamphaeng weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 15°71.3116.7
Feb33° / 17°30.711.45.0
Mar35° / 20°122.111.93.1
Apr37° / 24°264.412.41.9
May35° / 25°9913.212.92.3
Jun33° / 25°12018.313.12.5
Jul32° / 25°17521.9132.6
Aug31° / 25°23625.112.62.7
Sep31° / 24°22723.412.12.8
Oct31° / 22°11415.711.64.0
Nov30° / 19°21411.15.8
Dec29° / 16°91.210.97.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 84%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1793
2793
3892
4892
5892
6892
7991
8991
91189
101189
111189
121189
131288
141288
151387
161486
171585
181684
191684
201882
211882
222080
232179
242377
252575
262575
272773
282971
293169
303268

Chance of precipitation in September

Any precipitation

San Kamphaeng gets around 227 mm of rain over 23.4 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 77% and peaks near 80% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
179
279
379
480
580
680
780
880
980
1080
1180
1280
1380
1480
1580
1680
1779
1879
1978
2077
2177
2276
2375
2474
2574
2673
2772
2871
2970
3069

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 69% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
106733
206733
306733
406733
506733
606733
706733
806634
906634
1006634
1106535
1206535
1306535
1406535
1506634
1606634
1706634
1806733
1906832
2006832
2116831
2216930
2317029
2417128
2517326
2617425
2727424
2827523
2927721
3027820

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 3 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 24 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over September. Sunrise moves from 6:12 AM to 6:17 AM, and sunset from 6:34 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.46:126:34
212.46:126:34
312.36:126:33
412.36:136:32
512.36:136:31
612.36:136:30
712.36:136:29
812.26:136:28
912.26:136:27
1012.26:146:26
1112.26:146:26
1212.26:146:25
1312.26:146:24
1412.16:146:23
1512.16:156:22
1612.16:156:21
1712.16:156:20
1812.16:156:19
1912.16:156:18
2012.06:156:17
2112.06:166:16
2212.06:166:15
2312.06:166:15
2412.06:166:14
2511.96:166:13
2611.96:176:12
2711.96:176:11
2811.96:176:10
2911.96:176:09
3011.86:176:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.29 kWh/m².

For context, solar energy here swings from a low near 3.96 kWh/m² to a high of 6.3 kWh/m² in March across the year — September's 4.29 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.4Bright
244.4Bright
254.4Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
Planning a trip in September

Hazard calendar for San Kamphaeng

In seasonPeak

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

San Kamphaeng's monsoon runs June–October, 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 San Kamphaeng?

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

2.8
Sightseeing
7th-best month of the year
4.3
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in San Kamphaeng.

What to pack for San Kamphaeng in September

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

In September, San Kamphaeng sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. About 23 days see rain.

light clothesrain gear

UV index in San Kamphaeng 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 San Kamphaeng peaks around August 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 14UV 13Dec 22UV 7
UV index (midday)Level
Jan7Very high
Feb9Very high
Mar8Very high
Apr10Very high
May11Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct10Extreme
Nov8Very high
Dec7Very high

Air quality in San Kamphaeng 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 San Kamphaeng is worst in March — around 69 µg/m³ PM2.5 (unhealthy), about 4.3× the cleanest month (July, 16 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyModerateMar 2067 µg/m³Jul 1216 µg/m³
PM2.5 (µg/m³)Level
Jan37Poor
Feb46Poor
Mar69Unhealthy
Apr61Unhealthy
May28Moderate
Jun16Moderate
Jul16Moderate
Aug17Moderate
Sep21Moderate
Oct25Moderate
Nov28Moderate
Dec32Moderate
Location & terrain

Where is San Kamphaeng?

San Kamphaeng sits at 18.7°N, 99.1°E, 311 m above sea level, in Thailand. The nearest listed city is Chiang Mai, 15 km away.

PhayaoPai

Topography around San Kamphaeng

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

Within 3 km, the terrain around San Kamphaeng has only modest variations in elevation — a maximum elevation change of 29 m around an average of 309 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 727 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,502 m.

The land around San Kamphaeng is covered by trees (41%) and cropland (34%) within 3 km, trees (51%) and cropland (27%) within 16 km, and trees (83%) within 80 km.

3 km
29 m
16 km
727 m
80 km
2,502 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Chiang Mai 15 km · Lamphun 22 km · Hang Dong 22 km · San Pa Tong 27 km · Pa Sang 31 km · Lampang 64 km · Phayao 94 km · Pai 99 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 San Kamphaeng (18.7449°, 99.1195°, elevation 311 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).