Babat weather in September

In September, Babat sees average daytime highs of 30°C and overnight lows near 25°C, with 22 mm of rain across 3.7 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 49% 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 Babat's 2nd-clearest and 5th-windiest month. For the whole year in context, see Babat's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
25°
3rd coldest
Rainfall
22 mm
3.7 wet days
Daylight
12 hours
5:27 AM – 5:25 PM
Cloud cover
45%
2nd clearest
Wind
11 km/h
5th windiest
Solar energy
6.72 kWh/m²
Travel score
5.8
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 Babat reaches about 30°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 31°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)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
183025
193025
203025
213025
223025
233025
243025
253025
263025
273025
283025
293025
303025

How September really feels in Babat

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.

Babat 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° / 25°27228.812.43.0
Feb29° / 25°23926.812.22.9
Mar29° / 25°22128.2123.0
Apr30° / 26°17824.111.83.4
May30° / 26°8614.911.74.6
Jun30° / 25°569.411.65.4
Jul29° / 25°30511.66.1
Aug30° / 24°82.511.86.3
Sep30° / 25°223.7125.8
Oct31° / 26°6511.412.24.6
Nov30° / 26°15122.312.33.4
Dec30° / 26°25127.512.43.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17426
27426
37327
47426
57327
67228
77228
87228
97228
107129
117030
127030
136931
146832
156832
166733
176634
186535
196535
206337
216337
226337
236139
246139
256139
266040
275941
285941
295941
305842

Chance of precipitation in September

Any precipitation

Babat gets around 22 mm of rain over 3.7 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 13% and peaks near 21% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
19
29
310
410
510
610
710
810
910
1011
1111
1211
1311
1412
1512
1612
1713
1813
1914
2014
2115
2215
2316
2416
2517
2618
2718
2819
2920
3021

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 72% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1129682
2129691
3129691
4129691
5129691
6129691
7129691
8129691
9128701
10128701
11128701
12127702
13126712
14126712
15125713
16125713
17124714
18123724
19122725
20122725
21121726
22120736
23119746
24019747
25018757
26017767
27017767
28016768
29015778
30015778

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
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 5:35 AM to 5:19 AM, and sunset from 5:27 PM to 5:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:355:27
211.95:355:27
311.95:345:27
411.95:345:27
511.95:335:26
611.95:325:26
711.95:325:26
811.95:315:26
911.95:315:26
1011.95:305:26
1111.95:305:25
1211.95:295:25
1311.95:295:25
1411.95:285:25
1512.05:275:25
1612.05:275:25
1712.05:265:24
1812.05:265:24
1912.05:255:24
2012.05:255:24
2112.05:245:24
2212.05:235:24
2312.05:235:23
2412.05:225:23
2512.05:225:23
2612.05:215:23
2712.05:215:23
2812.05:205:23
2912.05:205:22
3012.15:195:22

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.72 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.96 kWh/m² to a high of 6.72 kWh/m² in September across the year — September's 6.72 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.8Intense
226.8Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.8Intense
296.8Intense
306.8Intense
Planning a trip in September

Hazard calendar for Babat

In seasonPeak

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

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

Babat'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 Babat?

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

5.8
Sightseeing
3rd-best month of the year
7.9
Beach & pool
3rd-best month of the year

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

What to pack for Babat in September

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

In September, Babat sees daytime highs around 30°C and nights near 25°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Babat 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 27 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
Dec30Tropical

UV index in Babat 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 Babat peaks around March 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 15 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highMar 17UV 13Jun 15UV 7
UV index (midday)Level
Jan12Extreme
Feb10Extreme
Mar13Extreme
Apr11Extreme
May9Very high
Jun7High
Jul9Very high
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov9Very high
Dec10Extreme

Air quality in Babat 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 Babat 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 Babat?

Babat sits at 7.1°S, 112.2°E, 12 m above sea level, in Indonesia. The nearest listed city is Tuban, 26 km away.

Topography around Babat

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

Within 3 km, the terrain around Babat has only modest variations in elevation — a maximum elevation change of 79 m around an average of 18 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 188 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,322 m.

The land around Babat is covered by cropland (45%) and trees (27%) within 3 km, cropland (67%) within 16 km, and cropland (33%), trees (28%) and water (27%) within 80 km.

3 km
79 m
16 km
188 m
80 km
2,322 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Tuban 26 km · Lamongan 28 km · Bojonegoro 31 km · Paciran 35 km · Jombang 49 km · Mojokerto 49 km · Soko 50 km · Kebomas 52 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 Babat (-7.1128°, 112.1635°, elevation 12 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).