Port Moresby in Fall
In fall (March, April and May), Port Moresby sees average daytime highs around 29°C and overnight lows near 24°C, with 534 mm of rain over about 57 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Across fall, daytime highs hold fairly steady around 29°C. The sky is clear or mostly clear about 8% of the time across fall, and the air most often feels oppressive.
Fall is Port Moresby's 3rd-best season to visit on our travel score. Port Moresby has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Port Moresby's year-round climate.
- Avg daytime high
- 29°C
- 3rd-warmest season
- Avg overnight low
- 24°C
- Rainfall
- 534 mm
- 57 wet days
- Avg wind
- 10 km/h
- Travel score
- 4.2
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Port Moresby in Fall
Across fall, daytime highs hold fairly steady around 29°C.
A typical fall day in Port Moresby reaches about 29°C and drops to 24°C overnight. The warmest of the three months is March, the coolest May.
How fall really feels in Port Moresby
Once humidity and wind are folded in, fall brings about 79 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Port Moresby weather by month
How the three fall months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 24° | 229 | 22.9 | 12.5 | 3.4 |
| Feb | 29° / 24° | 195 | 20.9 | 12.3 | 3.4 |
| Mar | 29° / 24° | 276 | 24.9 | 12.1 | 3.4 |
| Apr | 29° / 24° | 177 | 20.2 | 11.8 | 4.0 |
| May | 29° / 24° | 81 | 12.2 | 11.6 | 5.2 |
| Jun | 28° / 23° | 51 | 8.6 | 11.5 | 6.2 |
| Jul | 28° / 23° | 29 | 5.2 | 11.5 | 6.8 |
| Aug | 28° / 23° | 34 | 6.4 | 11.7 | 6.8 |
| Sep | 28° / 23° | 45 | 7.8 | 11.9 | 5.9 |
| Oct | 29° / 24° | 62 | 11 | 12.2 | 5.2 |
| Nov | 30° / 24° | 110 | 15.5 | 12.4 | 4.4 |
| Dec | 30° / 24° | 170 | 21.2 | 12.5 | 3.6 |
Cloud cover in Fall
The sky is clear or mostly clear about 8% of the time across fall.
Chance of precipitation in Fall
Port Moresby gets around 534 mm of rain over 57 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 10 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 12 min in early March to 11 h 30 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.8 kWh/m².
Hazard calendar for Port Moresby
In fall, Port Moresby overlaps its cyclone and monsoon season. The full year is below, with each hazard's peak months called out.
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.
Is fall a good time to visit Port Moresby?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Port Moresby for sightseeing.
What to pack for Port Moresby in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Port Moresby sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 57 days see rain.
Sea temperature near Port Moresby in Fall
The nearest coast averages about 29°C across fall — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29 | 29 | 29 | 29 | 28 | 27 | 26 | 25 | 25 | 26 | 27 | 29 |
| Comfort | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Warm | Warm | Warm | Warm | Warm | Tropical |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 29 | Tropical |
| Feb | 29 | Tropical |
| Mar | 29 | Tropical |
| Apr | 29 | Tropical |
| May | 28 | Warm |
| Jun | 27 | Warm |
| Jul | 26 | Warm |
| Aug | 25 | Warm |
| Sep | 25 | Warm |
| Oct | 26 | Warm |
| Nov | 27 | Warm |
| Dec | 29 | Tropical |
UV index in Port Moresby in Fall
Clear-sky midday UV across fall averages 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 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 15 | 16 | 16 | 14 | 11 | 9 | 10 | 12 | 14 | 14 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 16 | Extreme |
| Mar | 16 | Extreme |
| Apr | 14 | Extreme |
| May | 11 | Extreme |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 12 | Extreme |
| Sep | 14 | Extreme |
| Oct | 14 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
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.
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.
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
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.