Probolinggo weather in September

In September, Probolinggo sees average daytime highs of 29°C and overnight lows near 24°C, with 12 mm of rain across 2.1 wet days and about 12 hours of daylight. It is the 3rd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 48% of the time in September, and the air most often feels muggy.

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 Probolinggo's 2nd-clearest and 1st-windiest month. For the whole year in context, see Probolinggo's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
24°
3rd coldest
Rainfall
12 mm
2.1 wet days
Daylight
12 hours
5:23 AM – 5:20 PM
Cloud cover
47%
2nd clearest
Wind
9 km/h
1st windiest
Solar energy
6.18 kWh/m²
Travel score
6.7
out of 10

Probolinggo is city in East Java Province, Indonesia.

Density
4,301/km²
people per km²
Founded
1359

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 29°C through the month.

A typical September day in Probolinggo reaches about 29°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°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)
12924
22924
32924
42924
52924
62924
72924
82924
92924
102924
112924
122924
132924
142924
152924
162924
172924
182924
192924
202924
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925

How September really feels in Probolinggo

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Probolinggo weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 25°27528.212.43.5
Feb28° / 25°24526.312.33.4
Mar28° / 25°20326.212.13.8
Apr28° / 26°14121.611.84.1
May29° / 26°4611.311.75.6
Jun28° / 25°297.311.66.3
Jul28° / 24°153.511.67.0
Aug28° / 24°41.311.77.3
Sep29° / 24°122.1126.7
Oct29° / 25°39812.25.6
Nov29° / 26°12419.412.44.1
Dec28° / 25°25527.612.43.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
27129
37129
47129
57129
67030
77030
87030
97030
107030
117030
126931
136931
146931
156931
166931
176931
186832
196832
206832
216832
226634
236634
246634
256535
266436
276436
286337
296238
306139

Chance of precipitation in September

Any precipitation

Probolinggo gets around 12 mm of rain over 2.1 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 7% and peaks near 12% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
15
26
36
46
56
66
76
86
96
106
116
126
136
146
156
167
177
187
197
208
218
228
239
249
259
2610
2711
2811
2912
3012

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
166232
266133
366133
466034
566034
666034
756035
856035
955936
1055936
1145937
1245838
1345739
1445739
1535740
1635641
1735542
1835443
1925444
2025345
2125246
2225147
2325048
2424949
2524850
2614752
2714653
2814554
2914455
3014356

Wind in September

Winds average 9 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 5:31 AM to 5:15 AM, and sunset from 5:22 PM to 5:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:315:22
211.95:315:22
311.95:305:22
411.95:305:22
511.95:295:22
611.95:295:22
711.95:285:22
811.95:275:21
911.95:275:21
1011.95:265:21
1111.95:265:21
1211.95:255:21
1311.95:245:21
1411.95:245:21
1512.05:235:20
1612.05:235:20
1712.05:225:20
1812.05:225:20
1912.05:215:20
2012.05:205:20
2112.05:205:19
2212.05:195:19
2312.05:195:19
2412.05:185:19
2512.05:175:19
2612.05:175:19
2712.05:165:19
2812.05:165:18
2912.15:155:18
3012.15:155:18

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.18 kWh/m².

For context, solar energy here swings from a low near 4.65 kWh/m² to a high of 6.27 kWh/m² in October across the year — September's 6.18 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
26.0Bright
36.0Bright
46.0Intense
56.0Intense
66.0Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
Planning a trip in September

Hazard calendar for Probolinggo

In seasonPeak

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

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

Probolinggo'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 Probolinggo?

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

6.7
Sightseeing
3rd-best month of the year
8.4
Beach & pool
2nd-best month of the year

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

What to pack for Probolinggo in September

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

In September, Probolinggo sees daytime highs around 29°C and nights near 24°C. Pack light clothes and sun protection.

light clothessun protection

Sea temperature near Probolinggo in September

The nearest coast averages about 28°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 18 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
Jul28Tropical
Aug28Tropical
Sep28Tropical
Oct29Tropical
Nov30Tropical
Dec30Tropical

UV index in Probolinggo 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 Probolinggo peaks around March 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 16 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 highExtremeMar 18UV 13Jun 16UV 7
UV index (midday)Level
Jan11Extreme
Feb11Extreme
Mar14Extreme
Apr12Extreme
May10Very high
Jun7Very high
Jul10Very high
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Probolinggo 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 Probolinggo is worst in March — around 60 µg/m³ PM2.5 (unhealthy), about 1.7× the cleanest month (August, 36 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyUnhealthyPoorMar 1759 µg/m³Aug 1636 µg/m³
PM2.5 (µg/m³)Level
Jan57Unhealthy
Feb53Poor
Mar60Unhealthy
Apr54Poor
May45Poor
Jun43Poor
Jul39Poor
Aug36Poor
Sep39Poor
Oct48Poor
Nov52Poor
Dec56Unhealthy
Location & terrain

Where is Probolinggo?

Probolinggo sits at 7.8°S, 113.2°E, 15 m above sea level, in Indonesia. The nearest listed city is Kraksaan, 20 km away.

Topography around Probolinggo

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

Within 3 km, the terrain around Probolinggo has only modest variations in elevation — a maximum elevation change of 29 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 289 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,645 m.

The land around Probolinggo is covered by artificial surfaces (46%) and cropland (20%) within 3 km, water (46%), trees (23%) and cropland (20%) within 16 km, and trees (41%) and water (37%) within 80 km.

3 km
29 m
16 km
289 m
80 km
3,645 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
September weather nearby: Kraksaan 20 km · Pasuruan 36 km · Lumajang 42 km · Bangil 47 km · Besuki 53 km · Lawang 58 km · Pandaan 59 km · Kencong 61 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 Probolinggo (-7.7543°, 113.2159°, elevation 15 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).