Bauan weather in September

In September, Bauan sees average daytime highs of 28°C and overnight lows near 25°C, with 318 mm of rain across 26.7 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 28°C through the month. The sky is clear or mostly clear about 3% 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 Bauan's 10th-clearest and 9th-windiest month. For the whole year in context, see Bauan's year-round climate.

Daytime high
28°
7th warmest
Overnight low
25°
8th coldest
Rainfall
318 mm
26.7 wet days
Daylight
12 h 06 min
5:48 AM – 5:53 PM
Cloud cover
87%
10th clearest
Wind
11 km/h
9th windiest
Solar energy
4.98 kWh/m²
Travel score
3.3
out of 10

Bauan is municipality of the Philippines in the province of Batangas.

Density
630/km²
people per km²
Founded
1596

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 28°C through the month.

A typical September day in Bauan reaches about 28°C in the afternoon and slips back to 25°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12825
22825
32825
42825
52825
62825
72825
82825
92825
102825
112825
122825
132825
142825
152825
162825
172825
182825
192825
202825
212825
222825
232825
242825
252825
262825
272825
282825
292925
302925

How September really feels in Bauan

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.

Bauan 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
Jan27° / 23°366.311.36.9
Feb28° / 23°304.311.57.1
Mar29° / 24°345.211.96.3
Apr30° / 25°335.612.35.4
May30° / 26°13317.412.64.0
Jun30° / 26°22824.112.83.3
Jul29° / 25°35328.212.73.2
Aug28° / 25°26425.812.53.5
Sep28° / 25°31826.712.13.3
Oct29° / 25°20923.311.73.8
Nov28° / 25°11917.511.44.8
Dec28° / 24°16113.911.25.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 7% of September, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11090
21090
31090
41090
51090
6991
7991
8892
9793
10793
11793
12694
13694
14694
15694
16694
17694
18892
19892
20991
21991
221090
231189
241288
251387
261486
271585
281585
291783
301783

Chance of precipitation in September

Any precipitation

Bauan gets around 318 mm of rain over 26.7 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 89% and peaks near 91% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
184
284
385
485
586
687
788
888
989
1089
1190
1290
1390
1491
1591
1691
1791
1890
1990
2090
2190
2289
2389
2489
2589
2689
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 59% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
13664
23664
33763
43763
53862
63862
73862
83961
93961
104060
114060
124060
134159
144159
154159
164258
174258
184258
194258
204258
214258
224258
234258
244357
254357
264357
274456
284555
294555
304654

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 5:48 AM to 5:49 AM, and sunset from 6:04 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:486:04
212.35:486:03
312.25:486:02
412.25:486:02
512.25:486:01
612.25:486:00
712.25:485:59
812.25:485:59
912.25:485:58
1012.25:485:57
1112.15:485:56
1212.15:485:56
1312.15:485:55
1412.15:485:54
1512.15:485:53
1612.15:485:53
1712.15:485:52
1812.05:485:51
1912.05:485:50
2012.05:485:49
2112.05:485:49
2212.05:485:48
2312.05:485:47
2412.05:485:46
2512.05:485:46
2611.95:485:45
2711.95:485:44
2811.95:485:43
2911.95:485:43
3011.95:495:42

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.98 kWh/m².

For context, solar energy here swings from a low near 4.16 kWh/m² to a high of 6.7 kWh/m² in April across the year — September's 4.98 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
144.9Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
284.9Bright
294.9Bright
304.9Bright
Planning a trip in September

Hazard calendar for Bauan

In seasonPeak

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

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

Bauan's monsoon runs June–October, when most of the year's rain falls.

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

Is September a good time to visit Bauan?

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

3.3
Sightseeing
10th-best month of the year
4.0
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Bauan.

What to pack for Bauan in September

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

In September, Bauan sees daytime highs around 28°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near Bauan 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 17 km away) is warmest in June at about 30°C and coldest in February near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb26Warm
Mar27Warm
Apr28Tropical
May29Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in Bauan in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bauan peaks around August 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 17UV 14Dec 11UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar12Extreme
Apr13Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Bauan 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 Bauan is worst in April — around 15 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModerateGoodApr 1215 µg/m³Jun 1711 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb11Good
Mar14Moderate
Apr15Moderate
May13Moderate
Jun11Good
Jul12Moderate
Aug13Moderate
Sep12Good
Oct12Good
Nov11Good
Dec12Good
Location & terrain

Where is Bauan?

Bauan sits at 13.8°N, 121.0°E, 20 m above sea level, in Philippines. The nearest listed city is San Pascual, 3.0 km away.

Topography around Bauan

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

Within 3 km, the terrain around Bauan has only modest variations in elevation — a maximum elevation change of 111 m around an average of 33 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 947 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,521 m.

The land around Bauan is covered by trees (38%), artificial surfaces (24%) and water (22%) within 3 km, trees (47%) and water (37%) within 16 km, and water (48%) and trees (39%) within 80 km.

3 km
111 m
16 km
947 m
80 km
2,521 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: San Pascual 3.0 km · Batangas 7.0 km · Cuenca 13 km · Taal 13 km · Lipa City 24 km · Calaca 26 km · Rosario 29 km · Malvar 32 km

Philippines travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
230 V · 60 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$4,171
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
48%
of population, 2024
Homicide rate
4.3
per 100k, 2023
Road deaths
12
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 569
Religion
Roman Catholic 79%other 8%Muslim 6%other Christian 4%

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 Bauan (13.7917°, 121.0085°, elevation 20 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).