Port Moresby weather in June

In June, Port Moresby sees average daytime highs of 28°C and overnight lows near 23°C, with 51 mm of rain across 8.6 wet days and about 11.5 hours of daylight. It is the 10th-warmest and 9th-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 17% of the time in June, and the air most often feels oppressive.

Daylight stretches from about 11 h 30 min at the start of June to 11 h 30 min by month's end. Set against the rest of the year, June is Port Moresby's 4th-clearest and 4th-windiest month. For the whole year in context, see Port Moresby's year-round climate.

Daytime high
28°
10th warmest
Overnight low
23°
4th coldest
Rainfall
51 mm
8.6 wet days
Daylight
11 h 30 min
6:28 AM – 5:55 PM
Cloud cover
69%
4th clearest
Wind
15 km/h
4th windiest
Solar energy
4.29 kWh/m²
Travel score
6.2
out of 10

Port Moresby is capital of Papua New Guinea.

Density
1,182/km²
people per km²
Founded
1873

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical June day in Port Moresby reaches about 28°C in the afternoon and slips back to 23°C overnight — a 5°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, June runs on par with May and on par with July.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12824
22824
32824
42823
52823
62823
72823
82823
92823
102823
112823
122823
132823
142823
152823
162823
172823
182823
192823
202823
212823
222823
232823
242823
252823
262823
272823
282823
292823
302823

How June really feels in Port Moresby

Once humidity and wind are folded in, June 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

June sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Port Moresby weather by month

How June compares with the rest of the year at a glance. June is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°22922.912.53.4
Feb29° / 24°19520.912.33.4
Mar29° / 24°27624.912.13.4
Apr29° / 24°17720.211.84.0
May29° / 24°8112.211.65.2
Jun28° / 23°518.611.56.2
Jul28° / 23°295.211.56.8
Aug28° / 23°346.411.76.8
Sep28° / 23°457.811.95.9
Oct29° / 24°621112.25.2
Nov30° / 24°11015.512.44.4
Dec30° / 24°17021.212.53.6

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 18% of June, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13862
23961
33961
43961
53961
63862
73862
83763
93664
103664
113565
123565
133466
143466
153466
163367
173169
183169
193169
203268
213268
223268
233268
243268
253367
263367
273367
283466
293466
303466

Chance of precipitation in June

Any precipitation

Port Moresby gets around 51 mm of rain over 8.6 wet days in June. 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 31% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
128
228
327
427
526
626
726
826
926
1026
1126
1226
1326
1427
1527
1628
1729
1829
1930
2030
2131
2231
2330
2430
2529
2628
2727
2826
2925
3024

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the oppressive band about 73% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1197812
2197911
31107811
41117810
51127710
61137610
7114769
8115759
9116758
10117748
11118738
12118747
13119737
14220717
15220717
16220717
17221707
18221716
19221716
20221716
21221716
22221725
23222715
24222724
25223714
26224704
27225703
28225703
29226693
30227692

Wind in June

Winds average 15 km/h in June.

Across June, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

Sunrise & sunset in June

DaylightNight

Daylight runs from about 11 h 30 min at the start of June to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over June. Sunrise moves from 6:24 AM to 6:31 AM, and sunset from 5:54 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:245:54
211.56:255:54
311.56:255:54
411.56:255:54
511.56:255:54
611.56:265:54
711.56:265:54
811.56:265:54
911.56:265:54
1011.56:275:54
1111.56:275:54
1211.56:275:55
1311.56:275:55
1411.56:285:55
1511.56:285:55
1611.56:285:55
1711.46:285:55
1811.46:295:56
1911.46:295:56
2011.46:295:56
2111.46:295:56
2211.46:295:56
2311.46:305:57
2411.46:305:57
2511.46:305:57
2611.46:305:57
2711.46:305:57
2811.46:315:58
2911.56:315:58
3011.56:315:58

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.29 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.29 kWh/m² to a high of 5.92 kWh/m² in November across the year — June's 4.29 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
Planning a trip in June

Hazard calendar for Port Moresby

In seasonPeak

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

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

Port Moresby's monsoon runs December–April, when most of the year's rain falls.

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

Is June a good time to visit Port Moresby?

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

6.2
Sightseeing
3rd-best month of the year
6.8
Beach & pool
4th-best month of the year

June is a reasonable time to visit Port Moresby for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Port Moresby in June

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

In June, Port Moresby sees daytime highs around 28°C and nights near 23°C. Pack light clothes. Worth having: rain gear. About 9 days see rain.

light clothesrain gear

Sea temperature near Port Moresby in June

The nearest coast averages about 27°C in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 17 km away) is warmest in January 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
May28Warm
Jun27Warm
Jul26Warm
Aug25Warm
Sep25Warm
Oct26Warm
Nov27Warm
Dec29Tropical

UV index in Port Moresby in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Port Moresby peaks around March 10 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 highExtremeMar 10UV 16Jun 20UV 9
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul10Very high
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Port Moresby?

Port Moresby sits at 9.5°S, 147.2°E, 25 m above sea level, in Papua New Guinea. The nearest listed city is Popondetta, 143 km away.

PopondettaBuloloLaeGorokaDaruMadangMount HagenMendi

Topography around Port Moresby

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

Within 3 km, the terrain around Port Moresby has only modest variations in elevation — a maximum elevation change of 229 m around an average of 21 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 402 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,978 m.

The land around Port Moresby is covered by water (69%) within 3 km, water (53%) and grassland (24%) within 16 km, and trees (55%) and water (37%) within 80 km.

3 km
229 m
16 km
402 m
80 km
3,978 m
treesgrasslandartificial surfacesbare terrainwatermangroves
June weather nearby: Popondetta 143 km · Bulolo 259 km · Lae 307 km · Goroka 424 km · Daru 435 km · Madang 497 km · Mount Hagen 515 km · Mendi 534 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 Port Moresby (-9.4772°, 147.1509°, elevation 25 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).