Prigen weather in September

In September, Prigen sees average daytime highs of 28°C and overnight lows near 18°C, with 57 mm of rain across 8.1 wet days and about 12 hours of daylight. It is the 2nd-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 16% of the time in September, and the air most often feels humid.

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 Prigen's 1st-clearest and 4th-windiest month. For the whole year in context, see Prigen's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
18°
3rd coldest
Rainfall
57 mm
8.1 wet days
Daylight
12 hours
5:25 AM – 5:23 PM
Cloud cover
65%
1st clearest
Wind
4 km/h
4th windiest
Solar energy
6.16 kWh/m²
Travel score
6.5
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 Prigen reaches about 28°C in the afternoon and slips back to 18°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12717
22717
32718
42718
52718
62718
72718
82718
92718
102718
112818
122818
132818
142818
152818
162818
172818
182818
192818
202818
212818
222818
232818
242818
252818
262818
272818
282818
292818
302818

Prigen weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 20°51029.712.43.4
Feb26° / 20°49327.612.33.3
Mar27° / 20°46428.912.13.5
Apr27° / 20°29525.511.83.9
May27° / 19°13818.511.75.1
Jun27° / 18°7212.811.66.0
Jul26° / 17°519.811.66.5
Aug27° / 17°377.411.76.7
Sep28° / 18°578.1126.5
Oct28° / 19°15215.412.25.4
Nov27° / 20°32623.312.44.1
Dec27° / 20°43628.412.43.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23763
33763
43763
53862
63961
73961
83961
93961
103961
113862
123862
133862
143961
153961
163862
173862
183763
193763
203763
213664
223664
233664
243565
253565
263466
273367
283367
293268
303169

Chance of precipitation in September

Any precipitation

Prigen gets around 57 mm of rain over 8.1 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 28% and peaks near 39% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
125
225
324
424
524
623
723
823
923
1023
1123
1223
1324
1424
1525
1625
1726
1827
1928
2029
2130
2231
2332
2433
2534
2635
2736
2837
2938
3039

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 29% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
112450250
212450250
312450250
412450250
512451240
612550240
712550240
812550240
912551230
1012551230
1112550240
1212550240
1312550240
1412450250
1512449260
1612449260
1712349270
1812349280
1912248280
2012148290
2112148300
2212047310
2312047320
2412046330
2511945350
2611944360
2711943370
2811842380
2911841391
3011740411

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

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 5:34 AM to 5:17 AM, and sunset from 5:25 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:345:25
211.95:335:25
311.95:335:25
411.95:325:24
511.95:315:24
611.95:315:24
711.95:305:24
811.95:305:24
911.95:295:24
1011.95:295:24
1111.95:285:23
1211.95:275:23
1311.95:275:23
1411.95:265:23
1512.05:265:23
1612.05:255:23
1712.05:255:22
1812.05:245:22
1912.05:235:22
2012.05:235:22
2112.05:225:22
2212.05:225:22
2312.05:215:22
2412.05:205:21
2512.05:205:21
2612.05:195:21
2712.05:195:21
2812.05:185:21
2912.15:185:21
3012.15:175:21

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.16 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.39 kWh/m² to a high of 6.16 kWh/m² in September across the year — September's 6.16 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.0Bright
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
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
Planning a trip in September

Hazard calendar for Prigen

In seasonPeak

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

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

Prigen'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 Prigen?

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

6.5
Sightseeing
2nd-best month of the year
6.8
Beach & pool
2nd-best month of the year

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

What to pack for Prigen in September

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

In September, Prigen sees daytime highs around 28°C and nights near 18°C. Pack light clothes and sun protection. Worth having: rain gear. About 8 days see rain.

light clothessun protectionrain gear

Sea temperature near Prigen 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 29 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 Prigen 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 Prigen 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
May9Very high
Jun7High
Jul9Very high
Aug11Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec10Extreme

Air quality in Prigen 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 Prigen is worst in May — around 101 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyMay 13101 µg/m³Aug 2267 µg/m³
PM2.5 (µg/m³)Level
Jan76Unhealthy
Feb71Unhealthy
Mar87Unhealthy
Apr99Unhealthy
May101Unhealthy
Jun95Unhealthy
Jul81Unhealthy
Aug66Unhealthy
Sep69Unhealthy
Oct80Unhealthy
Nov87Unhealthy
Dec81Unhealthy
Location & terrain

Where is Prigen?

Prigen sits at 7.7°S, 112.6°E, 823 m above sea level, in Indonesia. The nearest listed city is Pandaan, 9.0 km away.

Topography around Prigen

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

Within 3 km, the terrain around Prigen has very significant variations in elevation — a maximum elevation change of 1,219 m around an average of 844 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 3,314 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,645 m.

The land around Prigen is covered by trees (78%) within 3 km, trees (63%) within 16 km, and trees (46%) and cropland (25%) within 80 km.

3 km
1,219 m
16 km
3,314 m
80 km
3,645 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Pandaan 9.0 km · Lawang 19 km · Tanggulangin 22 km · Batu 23 km · Tulangan Utara 24 km · Singosari 24 km · Bangil 24 km · Sidoarjo 28 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 Prigen (-7.6833°, 112.6167°, elevation 823 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).