Srandakan weather in September

In September, Srandakan sees average daytime highs of 26°C and overnight lows near 24°C, with 36 mm of rain across 7.9 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 26°C through the month. The sky is clear or mostly clear about 40% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Srandakan's 4th-clearest and 3rd-windiest month. For the whole year in context, see Srandakan's year-round climate.

Daytime high
26°
11th warmest
Overnight low
24°
2nd coldest
Rainfall
36 mm
7.9 wet days
Daylight
12 hours
5:35 AM – 5:32 PM
Cloud cover
51%
4th clearest
Wind
17 km/h
3rd windiest
Solar energy
6.07 kWh/m²
Travel score
7.1
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Srandakan reaches about 26°C in the afternoon and slips back to 24°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 27°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)
12624
22624
32624
42624
52624
62624
72624
82624
92624
102624
112624
122624
132624
142624
152624
162624
172624
182624
192624
202624
212624
222624
232624
242624
252624
262624
272624
282624
292624
302624

How September really feels in Srandakan

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.

Srandakan 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
Jan27° / 25°2842812.43.6
Feb27° / 25°23224.412.33.7
Mar28° / 25°21126.512.13.9
Apr28° / 25°1612311.84.1
May28° / 25°8214.511.65.6
Jun27° / 25°629.911.56.6
Jul26° / 24°295.911.67.4
Aug26° / 24°183.611.77.9
Sep26° / 24°367.9127.1
Oct26° / 24°12117.112.25.6
Nov27° / 25°24225.212.44.0
Dec27° / 25°33927.612.53.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16634
26634
36634
46733
56733
66733
76832
86832
96832
106832
116733
126733
136634
146634
156535
166535
176436
186436
196238
206238
216139
226040
235941
245842
255743
265743
275545
285545
295446
305347

Chance of precipitation in September

Any precipitation

Srandakan gets around 36 mm of rain over 7.9 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 27% and peaks near 38% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
117
218
318
419
519
620
721
822
923
1023
1124
1225
1326
1426
1527
1628
1728
1829
1930
2030
2131
2231
2332
2433
2533
2634
2735
2836
2937
3038

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 85% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1123751
2122761
3121771
4120781
5119791
6119791
7118801
8118810
9117820
10116830
11116830
12115840
13115840
14114850
15114850
16114850
17013870
18013870
19012880
20012871
21011881
22010891
23010891
2409901
2509901
2608902
2708902
2807912
2907912
3006913

Wind in September

Winds average 17 km/h in September.

Across September, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 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 18 minutes over September. Sunrise moves from 5:43 AM to 5:26 AM, and sunset from 5:34 PM to 5:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:435:34
211.95:435:34
311.95:425:34
411.95:425:34
511.95:415:34
611.95:415:33
711.95:405:33
811.95:395:33
911.95:395:33
1011.95:385:33
1111.95:385:33
1211.95:375:33
1311.95:365:32
1411.95:365:32
1511.95:355:32
1612.05:355:32
1712.05:345:32
1812.05:335:32
1912.05:335:32
2012.05:325:31
2112.05:325:31
2212.05:315:31
2312.05:305:31
2412.05:305:31
2512.05:295:31
2612.05:295:31
2712.05:285:31
2812.05:285:30
2912.15:275:30
3012.15:265:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.07 kWh/m².

For context, solar energy here swings from a low near 4.92 kWh/m² to a high of 6.11 kWh/m² in October across the year — September's 6.07 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
36.0Bright
46.0Bright
56.0Bright
66.0Bright
76.0Intense
86.0Intense
96.0Intense
106.0Intense
116.0Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.1Intense
186.1Intense
196.1Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
Planning a trip in September

Hazard calendar for Srandakan

In seasonPeak

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

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

Srandakan'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 Srandakan?

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

7.1
Sightseeing
3rd-best month of the year
6.7
Beach & pool
4th-best month of the year

September is one of the better times to visit Srandakan for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Srandakan in September

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

In September, Srandakan sees daytime highs around 26°C and nights near 24°C. Pack sun protection. Worth having: light clothes. About 8 days see rain.

sun protectionlight clothes

Sea temperature near Srandakan in September

The nearest coast averages about 25°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 16 km away) is warmest in March at about 29°C and coldest in August near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun28Warm
Jul26Warm
Aug25Warm
Sep25Warm
Oct26Warm
Nov28Warm
Dec29Tropical

UV index in Srandakan 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 Srandakan peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 15 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highExtremeExtremeMar 14UV 15Jun 15UV 7
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May9Very high
Jun6High
Jul10Very high
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov10Very high
Dec12Extreme

Air quality in Srandakan 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 Srandakan is worst in April — around 23 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1823 µg/m³Dec 1514 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb17Moderate
Mar20Moderate
Apr23Moderate
May21Moderate
Jun19Moderate
Jul18Moderate
Aug18Moderate
Sep18Moderate
Oct19Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Srandakan?

Srandakan sits at 7.9°S, 110.3°E, 23 m above sea level, in Indonesia. The nearest listed city is Bambanglipuro, 4.0 km away.

Topography around Srandakan

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

Within 3 km, the terrain around Srandakan has only modest variations in elevation — a maximum elevation change of 86 m around an average of 22 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 420 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,290 m.

The land around Srandakan is covered by trees (68%) within 3 km, trees (44%) and water (28%) within 16 km, and trees (50%) and water (32%) within 80 km.

3 km
86 m
16 km
420 m
80 km
3,290 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Bambanglipuro 4.0 km · Pandak 6.0 km · Bantul 10 km · Pundong 11 km · Sewon 14 km · Kasihan 15 km · Gamping Lor 18 km · Godean 19 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 Srandakan (-7.9386°, 110.2506°, elevation 23 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).