Bangkalan weather in September

In September, Bangkalan sees average daytime highs of 30°C and overnight lows near 26°C, with 20 mm of rain across 3.1 wet days and about 12 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 50% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Bangkalan's 3rd-clearest and 6th-windiest month. For the whole year in context, see Bangkalan's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
26°
7th coldest
Rainfall
20 mm
3.1 wet days
Daylight
12 hours
5:25 AM – 5:22 PM
Cloud cover
43%
3rd clearest
Wind
11 km/h
6th windiest
Solar energy
6.83 kWh/m²
Travel score
6.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Bangkalan reaches about 30°C in the afternoon and slips back to 26°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 30°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)
12926
22926
32926
42926
52926
62926
72926
82926
93026
103026
113026
123026
133026
143026
153026
163026
173026
183026
193026
203026
213026
223026
233026
243026
253026
263026
273026
283026
293026
303026

How September really feels in Bangkalan

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.

Bangkalan weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 26°30529.612.43.0
Feb29° / 26°26626.812.23.0
Mar29° / 26°23728.7123.1
Apr29° / 27°19623.811.83.5
May30° / 27°10114.911.74.7
Jun29° / 26°649.511.65.6
Jul29° / 26°294.811.66.5
Aug29° / 26°71.611.86.8
Sep30° / 26°203.1126.2
Oct30° / 27°7511.712.24.9
Nov30° / 27°17023.412.33.5
Dec29° / 26°28028.812.43.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17624
27624
37426
47426
57426
67426
77426
87228
97228
107228
117228
127129
137129
146931
156931
166931
176832
186733
196733
206634
216634
226634
236535
246535
256535
266535
276337
286337
296337
306337

Chance of precipitation in September

Any precipitation

Bangkalan gets around 20 mm of rain over 3.1 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 11% and peaks near 20% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
17
27
37
47
57
67
77
88
98
108
118
128
139
149
1510
1610
1710
1811
1911
2012
2112
2213
2314
2414
2515
2616
2717
2818
2919
3020

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 82% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1017803
2017803
3017803
4017803
5017812
6017812
7017812
8117802
9116812
10116803
11116803
12115813
13115804
14014824
15014815
16013825
17012826
18011836
19010837
20010837
2109838
2208839
2307849
24078310
25068410
26068311
27058411
28058411
29058312
30048412

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 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over September. Sunrise moves from 5:33 AM to 5:17 AM, and sunset from 5:25 PM to 5:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:335:25
211.95:325:25
311.95:325:24
411.95:315:24
511.95:315:24
611.95:305:24
711.95:305:24
811.95:295:24
911.95:295:23
1011.95:285:23
1111.95:275:23
1211.95:275:23
1311.95:265:23
1411.95:265:23
1512.05:255:22
1612.05:255:22
1712.05:245:22
1812.05:235:22
1912.05:235:22
2012.05:225:22
2112.05:225:21
2212.05:215:21
2312.05:215:21
2412.05:205:21
2512.05:195:21
2612.05:195:21
2712.05:185:20
2812.05:185:20
2912.05:175:20
3012.15:175:20

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.83 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 5.11 kWh/m² to a high of 6.83 kWh/m² in September across the year — September's 6.83 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.7Intense
56.7Intense
66.7Intense
76.7Intense
86.7Intense
96.8Intense
106.8Intense
116.8Intense
126.8Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.9Intense
186.9Intense
196.9Intense
206.9Intense
216.9Intense
226.9Intense
236.9Intense
246.9Intense
256.9Intense
266.9Intense
276.9Intense
286.9Intense
296.9Intense
306.9Intense
Planning a trip in September

Hazard calendar for Bangkalan

In seasonPeak

None of Bangkalan's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Bangkalan sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Bangkalan's monsoon runs November–April, when most of the year's rain falls.

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

Is September a good time to visit Bangkalan?

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

6.2
Sightseeing
3rd-best month of the year
8.2
Beach & pool
2nd-best month of the year

September is a reasonable time to visit Bangkalan for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Bangkalan in September

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

In September, Bangkalan sees daytime highs around 30°C and nights near 26°C. Pack light clothes and sun protection. About 3 days see rain.

light clothessun protection

Sea temperature near Bangkalan 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 23 km away) is warmest in November at about 30°C and coldest in August 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
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug28Tropical
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec29Tropical

UV index in Bangkalan 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 Bangkalan peaks around March 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 17UV 13Jun 16UV 8
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun7Very high
Jul9Very high
Aug11Extreme
Sep13Extreme
Oct11Extreme
Nov10Extreme
Dec11Extreme

Air quality in Bangkalan 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 Bangkalan is worst in October — around 41 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (February, 24 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModeratePoorOct 2141 µg/m³Feb 1225 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb24Moderate
Mar32Moderate
Apr36Poor
May38Poor
Jun36Poor
Jul32Moderate
Aug29Moderate
Sep33Moderate
Oct41Poor
Nov39Poor
Dec34Moderate
Location & terrain

Where is Bangkalan?

Bangkalan sits at 7.0°S, 112.7°E, 4 m above sea level, in Indonesia. The nearest listed city is Kamal, 14 km away.

Topography around Bangkalan

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

Within 3 km, the terrain around Bangkalan has only modest variations in elevation — a maximum elevation change of 20 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,129 m.

The land around Bangkalan is covered by cropland (24%) and trees (20%) within 3 km, water (49%) and trees (20%) within 16 km, and water (48%) and cropland (22%) within 80 km.

3 km
20 m
16 km
130 m
80 km
3,129 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Kamal 14 km · Gresik 15 km · Kebomas 18 km · Surabaya 23 km · Lamongan 36 km · Driyorejo 38 km · Gedangan 38 km · Buduran 43 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 2%

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 Bangkalan (-7.0455°, 112.7351°, elevation 4 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).