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Weather & Climate in Port Moresby, Papua New Guinea
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Port Moresby has a warm climate with an average annual temperature of 80°F (27°C). Winters average 81°F in January while summers reach 78°F in July / relatively mild seasonal variation. The area gets 229 sunny days per year, above the national average. Annual precipitation totals 59.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 82 feet.
Temperature
81°F Jan (27°C)
78°F Jul (26°C)
| Annual Average | 80.0°F |
| 48% above US avg | |
| January Average | 81°F (27°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 229 days/yr |
Geography
| Elevation | 82 ft (25 m) |
| Area | 92.7 sq mi (240.0 km²) |
| Population Density | 3,062/sq mi |
| Coordinates | -9.4772°N, 147.1509°W |
| Timezone | Pacific/Port_Moresby |
Precipitation & Snow
Air Quality
Earthquake History
51 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.6.
| Nov 7, 2012 | 25 km WNW of Popondetta, Papua New Guinea | M5.6 | 134 km | 118 km |
| Mar 31, 2014 | 104 km NW of Kokoda, Papua New Guinea | M5.6 | 132 km | 4 km |
| Jun 29, 1999 | 66 km S of Kokoda, Papua New Guinea | M5.6 | 77 km | 33 km |
| Jan 9, 1991 | 67 km WSW of Port Moresby, Papua New Guinea | M5.2 | 68 km | 33 km |
| Mar 3, 1992 | 94 km ESE of Kerema, Papua New Guinea | M5.2 | 139 km | 52 km |
| Aug 26, 2016 | 106 km NW of Port Moresby, Papua New Guinea | M5.2 | 107 km | 23 km |
| Jan 17, 2023 | 35 km SSW of Popondetta, Papua New Guinea | M5.1 | 117 km | 22 km |
| Jun 20, 2003 | 70 km S of Popondetta, Papua New Guinea | M5.1 | 118 km | 57 km |
| Aug 29, 1993 | 61 km SSE of Kokoda, Papua New Guinea | M4.9 | 99 km | 10 km |
| Apr 4, 2019 | 37 km NW of Kokoda, Papua New Guinea | M4.9 | 99 km | 10 km |
| Sep 9, 1998 | 28 km WNW of Popondetta, Papua New Guinea | M4.8 | 134 km | 130 km |
| Jun 20, 2003 | 78 km S of Popondetta, Papua New Guinea | M4.7 | 126 km | 44 km |
| Feb 26, 2018 | 75 km WNW of Port Moresby, Papua New Guinea | M4.6 | 76 km | 45 km |
| Sep 17, 2024 | 93 km NNW of Kokoda, Papua New Guinea | M4.6 | 149 km | 15 km |
| Jul 2, 1999 | 65 km ESE of Port Moresby, Papua New Guinea | M4.6 | 66 km | 33 km |
| Mar 20, 2014 | 17 km WNW of Popondetta, Papua New Guinea | M4.6 | 134 km | 122 km |
| Mar 20, 2001 | 100 km S of Popondetta, Papua New Guinea | M4.6 | 136 km | 33 km |
| May 18, 2004 | 76 km NW of Kokoda, Papua New Guinea | M4.6 | 130 km | 10 km |
| Mar 31, 2014 | 115 km WNW of Kokoda, Papua New Guinea | M4.5 | 119 km | 10 km |
| Apr 10, 2020 | 17 km NW of Popondetta, Papua New Guinea | M4.5 | 143 km | 111 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2014 | Ita | Category 3 | 104 mph | 297 km |
| 2008 | Guba | Category 1 | 75 mph | 206 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Nearby Volcanoes
1 volcano within 200 km. Closest: Managlase Plateau (137 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Managlase Plateau | Volcanic field | 1,342 m (4,403 ft) | Unknown | 137 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 81°F (27°C) | 8.4 in | |
| February | 81°F (27°C) | 8.2 in | |
| March | 81°F (27°C) | 9.8 in | Wettest |
| April | 80°F (27°C) | 6.1 in | |
| May | 80°F (27°C) | 4.6 in | |
| June | 79°F (26°C) | 3.0 in | |
| July | 78°F (26°C) | 1.9 in | Coldest, Driest |
| August | 78°F (26°C) | 2.1 in | |
| September | 79°F (26°C) | 2.6 in | |
| October | 80°F (27°C) | 3.2 in | |
| November | 81°F (27°C) | 3.4 in | |
| December | 81°F (27°C) | 6.1 in | Warmest |
Port Moresby has a seasonal temperature swing of 3°F / from 78°F in July to 81°F in December. Total annual precipitation is 59.2 inches, with March being the wettest month (9.8") and July the driest (1.9").