Goroka weather in September

In September, Goroka sees average daytime highs of 24°C and overnight lows near 14°C, with 129 mm of rain across 19.5 wet days and about 12 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 7% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Goroka's 3rd-clearest and 3rd-windiest month. For the whole year in context, see Goroka's year-round climate.

Daytime high
24°
5th warmest
Overnight low
14°
3rd coldest
Rainfall
129 mm
19.5 wet days
Daylight
12 hours
6:14 AM – 6:12 PM
Cloud cover
79%
3rd clearest
Wind
4 km/h
3rd windiest
Solar energy
5.2 kWh/m²
Travel score
5.1
out of 10

Goroka is Capital city of Eastern Highlands, Papua New Guinea.

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 24°C through the month.

A typical September day in Goroka reaches about 24°C in the afternoon and slips back to 14°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 25°C. Set against its neighbours, September runs on par with August and on par with October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12314
22314
32314
42314
52414
62414
72414
82414
92414
102414
112414
122414
132414
142414
152414
162414
172414
182414
192414
202414
212414
222414
232415
242415
252415
262415
272415
282415
292415
302415

Goroka weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 16°42528.512.33.7
Feb24° / 16°41326.712.23.6
Mar24° / 16°41729.6123.6
Apr23° / 15°25726.311.93.9
May24° / 15°1512211.74.8
Jun23° / 15°8816.711.75.5
Jul23° / 14°9616.611.75.5
Aug23° / 14°11218.111.85.4
Sep24° / 14°12919.5125.1
Oct24° / 15°16923.312.14.6
Nov24° / 15°23525.912.34.1
Dec24° / 16°32828.312.33.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12476
22476
32377
42377
52377
62377
72278
82278
92179
102179
112278
122278
132179
142179
152179
162080
172080
182080
192080
201981
211981
221981
231981
241783
251783
261783
271684
281585
291585
301585

Chance of precipitation in September

Any precipitation

Goroka gets around 129 mm of rain over 19.5 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 65% and peaks near 72% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
162
262
362
462
562
662
762
862
962
1062
1162
1262
1363
1463
1563
1663
1764
1864
1965
2065
2166
2267
2367
2468
2569
2670
2770
2871
2972
3072

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
155837
255837
365737
465638
575538
675538
785438
885438
995338
1095338
1195338
1295338
1395338
1495239
1595239
1685240
1785141
1885141
1985042
2074943
2174944
2274945
2364945
2464846
2554846
2654847
2754848
2854748
2944749
3044749

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 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 6:22 AM to 6:06 AM, and sunset from 6:15 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:226:15
211.96:216:14
311.96:216:14
411.96:206:14
511.96:206:14
611.96:196:14
711.96:196:14
811.96:186:13
911.96:186:13
1011.96:176:13
1111.96:166:13
1211.96:166:13
1311.96:156:12
1412.06:156:12
1512.06:146:12
1612.06:146:12
1712.06:136:12
1812.06:136:11
1912.06:126:11
2012.06:126:11
2112.06:116:11
2212.06:116:11
2312.06:106:10
2412.06:096:10
2512.06:096:10
2612.06:086:10
2712.06:086:10
2812.06:076:10
2912.06:076:09
3012.06:066:09

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.2 kWh/m².

For context, solar energy here swings from a low near 4.37 kWh/m² to a high of 5.32 kWh/m² in October across the year — September's 5.2 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Hazard calendar for Goroka

In seasonPeak

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

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

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

Is September a good time to visit Goroka?

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

5.1
Sightseeing
4th-best month of the year
4.2
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Goroka for sightseeing.

What to pack for Goroka in September

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

In September, Goroka sees daytime highs around 24°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 20 days see rain.

rain gearlight clothessun protection

UV index in Goroka in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Goroka peaks around March 11 at about 18 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 12 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 11UV 18Jun 20UV 12
UV index (midday)Level
Jan17Extreme
Feb17Extreme
Mar18Extreme
Apr16Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep15Extreme
Oct15Extreme
Nov15Extreme
Dec15Extreme

Air quality in Goroka 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 Goroka is worst in July — around 41 µg/m³ PM2.5 (poor), about 6.5× the cleanest month (January, 6 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodJul 1839 µg/m³Jan 246 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb6Good
Mar7Good
Apr7Good
May9Good
Jun19Moderate
Jul41Poor
Aug27Moderate
Sep19Moderate
Oct13Moderate
Nov10Good
Dec7Good
Location & terrain

Where is Goroka?

Goroka sits at 6.1°S, 145.4°E, 1,574 m above sea level, in Papua New Guinea. The nearest listed city is Madang, 106 km away.

MadangMount HagenBuloloMendiLaeWewakDaruPort Moresby

Topography around Goroka

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

Within 3 km, the terrain around Goroka has significant variations in elevation — a maximum elevation change of 335 m around an average of 1,549 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,179 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,443 m.

The land around Goroka is covered by trees (71%) within 3 km, trees (76%) and grassland (23%) within 16 km, and trees (84%) within 80 km.

3 km
335 m
16 km
2,179 m
80 km
4,443 m
treesgrasslandartificial surfaces
September weather nearby: Madang 106 km · Mount Hagen 130 km · Bulolo 186 km · Mendi 191 km · Lae 191 km · Wewak 342 km · Daru 410 km · Port Moresby 424 km

Papua New Guinea travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type I
240 V · 50 Hz
Prices
≈ 58% of US
price level, 2025
GDP per capita
$3,020
2025
Homicide rate
9.3
per 100k, 2010
Road deaths
12.6
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Protestant 64%Roman Catholic 26%other Christian 5%non-Christian 1%

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 Goroka (-6.085°, 145.3867°, elevation 1,574 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. 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).