Kroya weather in September

In September, Kroya sees average daytime highs of 28°C and overnight lows near 24°C, with 89 mm of rain across 15 wet days and about 12 hours of daylight. It is the 11th-warmest and 10th-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 20% 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 Kroya's 4th-clearest and 2nd-windiest month. For the whole year in context, see Kroya's year-round climate.

Daytime high
28°
11th warmest
Overnight low
24°
3rd coldest
Rainfall
89 mm
15 wet days
Daylight
12 hours
5:39 AM – 5:36 PM
Cloud cover
63%
4th clearest
Wind
14 km/h
2nd windiest
Solar energy
5.73 kWh/m²
Travel score
5.5
out of 10

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 Kroya reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°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)
12824
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824

How September really feels in Kroya

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.

Kroya weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 25°35128.912.43.0
Feb29° / 26°27626.512.32.9
Mar29° / 26°28628.312.13.0
Apr29° / 26°21427.111.83.0
May29° / 26°14123.611.73.7
Jun29° / 25°10218.311.64.5
Jul28° / 24°7814.711.65.6
Aug28° / 24°5211.311.76.2
Sep28° / 24°8915125.5
Oct28° / 25°19321.712.24.3
Nov29° / 25°35427.112.33.2
Dec29° / 25°41328.712.43.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 25% of September, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
25050
34951
44951
54951
64951
74951
84951
94951
104951
114951
124753
134654
144654
154555
164456
174456
184456
194357
204357
214357
224258
234159
244159
254159
264159
274060
284060
294060
303862

Chance of precipitation in September

Any precipitation

Kroya gets around 89 mm of rain over 15 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 50% and peaks near 57% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
141
242
343
444
544
645
745
846
947
1047
1148
1248
1349
1450
1550
1651
1752
1853
1953
2054
2154
2254
2355
2455
2555
2656
2756
2857
2957
3057

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 79% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1123742
2122752
3121762
4121762
5120772
6120772
7120781
8120781
9120781
10119782
11119782
12119782
13119782
14119773
15118783
16118783
17018784
18017794
19017794
20016795
21015805
22014806
23014806
24013807
25012817
26011827
27011818
28010828
29010828
3009838

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2913light breeze
3013light breeze

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 5:47 AM to 5:31 AM, and sunset from 5:38 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:475:38
211.95:475:38
311.95:465:38
411.95:465:38
511.95:455:38
611.95:445:38
711.95:445:37
811.95:435:37
911.95:435:37
1011.95:425:37
1111.95:425:37
1211.95:415:37
1311.95:405:37
1411.95:405:36
1512.05:395:36
1612.05:395:36
1712.05:385:36
1812.05:375:36
1912.05:375:36
2012.05:365:35
2112.05:365:35
2212.05:355:35
2312.05:345:35
2412.05:345:35
2512.05:335:35
2612.05:335:35
2712.05:325:34
2812.05:325:34
2912.15:315:34
3012.15:315:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.73 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.64 kWh/m² to a high of 5.73 kWh/m² in September across the year — September's 5.73 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Hazard calendar for Kroya

In seasonPeak

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

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

Kroya's rainy season runs October–April, when most of the year's rain falls.

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

Is September a good time to visit Kroya?

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

5.5
Sightseeing
3rd-best month of the year
5.9
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Kroya for sightseeing.

What to pack for Kroya in September

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

In September, Kroya sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 15 days see rain.

light clothesrain gearsun protection

Sea temperature near Kroya in September

The nearest coast averages about 26°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 30 km away) is warmest in April at about 29°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul27Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov28Warm
Dec29Tropical

UV index in Kroya 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 Kroya peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 14 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 highExtremeExtremeMar 12UV 15Jun 14UV 7
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr12Extreme
May9Very high
Jun7High
Jul10Very high
Aug11Extreme
Sep12Extreme
Oct13Extreme
Nov9Very high
Dec12Extreme

Air quality in Kroya 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 Kroya is worst in May — around 47 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMay 1647 µg/m³Sep 1730 µg/m³
PM2.5 (µg/m³)Level
Jan36Poor
Feb36Poor
Mar40Poor
Apr45Poor
May47Poor
Jun44Poor
Jul39Poor
Aug32Moderate
Sep30Moderate
Oct32Moderate
Nov32Moderate
Dec31Moderate
Location & terrain

Where is Kroya?

Kroya sits at 7.6°S, 109.2°E, 18 m above sea level, in Indonesia. The nearest listed city is Banyumas, 14 km away.

Topography around Kroya

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

Within 3 km, the terrain around Kroya has only modest variations in elevation — a maximum elevation change of 24 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 539 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,396 m.

The land around Kroya is covered by trees (41%) and cropland (37%) within 3 km, trees (37%), cropland (31%) and water (24%) within 16 km, and trees (50%) and water (30%) within 80 km.

3 km
24 m
16 km
539 m
80 km
3,396 m
treesgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Banyumas 14 km · Sokaraja 20 km · Purwokerto 24 km · Wangon 25 km · Cilacap 28 km · Gombong 30 km · Purbalingga 30 km · Baturaden 37 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 Kroya (-7.6331°, 109.2461°, elevation 18 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).