Ban Phe weather in September

In September, Ban Phe sees average daytime highs of 31°C and overnight lows near 25°C, with 298 mm of rain across 25.8 wet days and about 12.1 hours of daylight. It is the 12th-warmest and 1st-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 1% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Ban Phe's 11th-clearest and 10th-windiest month. For the whole year in context, see Ban Phe's year-round climate.

Daytime high
31°
12th warmest
Overnight low
25°
7th coldest
Rainfall
298 mm
25.8 wet days
Daylight
12 h 06 min
6:06 AM – 6:11 PM
Cloud cover
90%
11th clearest
Wind
8 km/h
10th windiest
Solar energy
4.37 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 Ban Phe 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, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13126
23126
33126
43126
53126
63126
73126
83126
93125
103125
113125
123125
133025
143025
153025
163025
173025
183025
193025
203025
213025
223025
233025
243025
253025
263025
273025
283025
293025
303025

How September really feels in Ban Phe

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.

Ban Phe weather by month

How September compares with the rest of the year at a glance. September is the 12th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°214.311.35.3
Feb31° / 24°214.211.65.1
Mar32° / 25°549.111.94.4
Apr32° / 26°8612.312.33.6
May32° / 26°19122.112.62.9
Jun31° / 26°20922.712.72.9
Jul31° / 26°19723.812.73.0
Aug31° / 26°19723.812.43.0
Sep31° / 25°29825.812.12.8
Oct31° / 25°22421.411.73.3
Nov31° / 24°467.211.44.6
Dec31° / 23°122.711.35.4

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 3% of September, with mostly cloudy or overcast conditions the remaining 95%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1595
2595
3496
4496
5496
6496
7496
8496
9496
10397
11397
12397
13397
14397
15496
16496
17496
18496
19496
20496
21595
22595
23595
24595
25595
26595
27694
28694
29694
30694

Chance of precipitation in September

Any precipitation

Ban Phe gets around 298 mm of rain over 25.8 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 86% and peaks near 89% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
180
280
381
481
581
682
782
883
984
1084
1185
1286
1387
1487
1588
1688
1788
1889
1989
2089
2189
2289
2389
2489
2589
2689
2789
2889
2989
3089

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1496
2595
3595
4595
5595
6595
7595
8595
9595
10595
11595
12595
13595
14595
15595
16595
17595
18595
19595
20496
21496
22496
23496
24496
25496
26595
27595
28595
29694
30694

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 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 18 minutes over September. Sunrise moves from 6:07 AM to 6:07 AM, and sunset from 6:21 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:076:21
212.26:076:21
312.26:076:20
412.26:076:19
512.26:076:19
612.26:076:18
712.26:076:17
812.26:076:16
912.26:076:16
1012.16:076:15
1112.16:076:14
1212.16:076:14
1312.16:076:13
1412.16:076:12
1512.16:076:11
1612.16:066:11
1712.16:066:10
1812.06:066:09
1912.06:066:08
2012.06:066:08
2112.06:066:07
2212.06:066:06
2312.06:066:06
2412.06:066:05
2512.06:066:04
2611.96:066:03
2711.96:066:03
2811.96:066:02
2911.96:076:01
3011.96:076:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.37 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.37 kWh/m² to a high of 5.84 kWh/m² in April across the year — September's 4.37 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.4Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in September

Hazard calendar for Ban Phe

In seasonPeak

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

Ban Phe sits in the Pacific typhoon belt; the season peaks July–October.

Ban Phe'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 Ban Phe?

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

2.8
Sightseeing
12th-best month of the year
4.0
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Ban Phe.

What to pack for Ban Phe in September

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

In September, Ban Phe sees daytime highs around 31°C and nights near 25°C. Pack light clothes and rain gear. About 26 days see rain.

light clothesrain gear

Sea temperature near Ban Phe 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 offshore 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
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Ban Phe 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 Ban Phe peaks around August 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highExtremeVery highAug 16UV 14Dec 15UV 9
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct10Extreme
Nov9Very high
Dec9Very high

Air quality in Ban Phe 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 Ban Phe is worst in January — around 39 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (June, 17 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateJan 2439 µg/m³Jun 2017 µg/m³
PM2.5 (µg/m³)Level
Jan39Poor
Feb39Poor
Mar29Moderate
Apr26Moderate
May20Moderate
Jun17Moderate
Jul18Moderate
Aug17Moderate
Sep21Moderate
Oct31Moderate
Nov30Moderate
Dec29Moderate
Location & terrain

Where is Ban Phe?

Ban Phe sits at 12.6°N, 101.4°E, 7 m above sea level, in Thailand. The nearest listed city is Rayong, 20 km away.

Topography around Ban Phe

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

Within 3 km, the terrain around Ban Phe has only modest variations in elevation — a maximum elevation change of 221 m around an average of 11 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 689 m; within 80 km, large variations in elevation — a maximum elevation change of 1,002 m.

The land around Ban Phe is covered by water (38%) and trees (37%) within 3 km, water (50%) and trees (40%) within 16 km, and trees (47%) and water (41%) within 80 km.

3 km
221 m
16 km
689 m
80 km
1,002 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Rayong 20 km · Klaeng 28 km · Ban Chang 43 km · Sattahip 58 km · Tha Mai 62 km · Ban Talat Bueng 68 km · Pattaya 69 km · Laem Sing 71 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 Ban Phe (12.6282°, 101.4376°, elevation 7 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).