Daru weather in September

In September, Daru sees average daytime highs of 26°C and overnight lows near 25°C, with 72 mm of rain across 16.6 wet days and about 11.9 hours of daylight. It is the 10th-warmest and 12th-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 14% 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 Daru's 3rd-clearest and 4th-windiest month. For the whole year in context, see Daru's year-round climate.

Daytime high
26°
10th warmest
Overnight low
25°
3rd coldest
Rainfall
72 mm
16.6 wet days
Daylight
12 hours
6:23 AM – 6:20 PM
Cloud cover
68%
3rd clearest
Wind
25 km/h
4th windiest
Solar energy
5.44 kWh/m²
Travel score
5.5
out of 10

Daru is capital city of Western Province, Papua New Guinea.

Density
1,601/km²
people per km²
Founded
1884

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 26°C through the month.

A typical September day in Daru reaches about 26°C in the afternoon and slips back to 25°C overnight — a 1°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 about 1°C cooler than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12625
22625
32625
42625
52625
62625
72625
82625
92625
102625
112625
122625
132625
142625
152625
162625
172625
182625
192625
202625
212625
222625
232625
242625
252625
262625
272625
282625
292625
302625

How September really feels in Daru

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.

Daru weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 26°25026.912.53.2
Feb29° / 26°24225.412.33.1
Mar28° / 26°28926.712.13.4
Apr28° / 26°31125.711.83.8
May27° / 26°23425.211.64.2
Jun26° / 25°16022.911.54.5
Jul26° / 25°9519.611.55.2
Aug25° / 24°8417.511.75.5
Sep26° / 25°7216.611.95.5
Oct27° / 25°11117.712.25.3
Nov28° / 26°12918.112.44.9
Dec29° / 26°20123.912.53.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 64%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13763
23763
33862
43763
53763
63763
73862
83763
93763
103763
113862
123763
133763
143565
153565
163565
173565
183565
193565
203565
213565
223565
233565
243565
253664
263664
273664
283565
293565
303664

Chance of precipitation in September

Any precipitation

Daru gets around 72 mm of rain over 16.6 wet days in September, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 56% and peaks near 59% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
155
255
355
455
554
654
754
854
955
1055
1155
1255
1356
1456
1556
1656
1756
1856
1957
2057
2157
2257
2357
2457
2558
2658
2758
2858
2959
3059

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 69% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1229672
2229663
3229663
4229663
5228673
6228673
7228673
8228664
9228664
10227674
11227674
12226675
13226675
14225685
15224695
16223696
17223696
18222706
19121726
20120727
21120727
22119728
23119728
24118729
25118729
260187210
270187111
280187111
290177112
300177013

Wind in September

Winds average 25 km/h in September.

Across September, daily wind ranges from about 24 km/h on the calmest days to 25 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
125breezy
225breezy
325breezy
425breezy
525breezy
625breezy
725breezy
825breezy
925breezy
1025breezy
1125breezy
1225breezy
1325breezy
1425breezy
1525breezy
1625breezy
1725breezy
1825breezy
1925breezy
2025breezy
2125breezy
2225breezy
2325breezy
2425breezy
2525breezy
2624breezy
2724breezy
2824breezy
2924breezy
3024breezy

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 6:32 AM to 6:14 AM, and sunset from 6:22 PM to 6:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:326:22
211.86:326:22
311.86:316:21
411.86:306:21
511.96:306:21
611.96:296:21
711.96:296:21
811.96:286:21
911.96:276:21
1011.96:276:21
1111.96:266:21
1211.96:256:20
1311.96:256:20
1411.96:246:20
1511.96:246:20
1612.06:236:20
1712.06:226:20
1812.06:226:20
1912.06:216:20
2012.06:206:20
2112.06:206:19
2212.06:196:19
2312.06:196:19
2412.06:186:19
2512.06:176:19
2612.06:176:19
2712.06:166:19
2812.16:166:19
2912.16:156:19
3012.16:146:19

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.44 kWh/m².

For context, solar energy here swings from a low near 4.11 kWh/m² to a high of 6.19 kWh/m² in November across the year — September's 5.44 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Hazard calendar for Daru

In seasonPeak

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

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

Daru's rainy season runs December–June, 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 Daru?

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

5.5
Sightseeing
1st-best month of the year
5.2
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Daru for sightseeing.

What to pack for Daru in September

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

In September, Daru sees daytime highs around 26°C and nights near 25°C. Pack rain gear. Worth having: light clothes, sun protection and a windbreaker. About 17 days see rain.

rain gearlight clothessun protectiona windbreaker

Sea temperature near Daru 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 offshore is warmest in January 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
May28Warm
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov28Tropical
Dec29Tropical

UV index in Daru in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Daru peaks around February 20 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 20UV 16Jun 20UV 9
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul10Very high
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Daru?

Daru sits at 9.1°S, 143.2°E, 11 m above sea level, in Papua New Guinea. The nearest listed city is Merauke, 315 km away.

MeraukeMendiMount HagenGorokaBuloloPort MoresbyLaeMadang

Topography around Daru

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

Within 3 km, the terrain around Daru has only modest variations in elevation — a maximum elevation change of 24 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 46 m; within 80 km, only modest variations in elevation — a maximum elevation change of 80 m.

The land around Daru is covered by water (55%) and mangroves (24%) within 3 km, water (60%) and trees (31%) within 16 km, and water (63%) and trees (34%) within 80 km.

3 km
24 m
16 km
46 m
80 km
80 m
treesgrasslandartificial surfaceswaterwetlandmangroves
September weather nearby: Merauke 315 km · Mendi 330 km · Mount Hagen 375 km · Goroka 410 km · Bulolo 431 km · Port Moresby 435 km · Lae 492 km · Madang 515 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 Daru (-9.0779°, 143.2089°, elevation 11 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).