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Weather & Climate in Mount Hagen, Papua New Guinea
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mount Hagen enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 65°F in January while summers reach 62°F in July / relatively mild seasonal variation. The area gets 148 sunny days per year, below the national average of 205. Annual precipitation totals 103.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 5,669 feet.
Temperature
65°F Jan (18°C)
62°F Jul (17°C)
| Annual Average | 63.9°F |
| 18% above US avg | |
| January Average | 65°F (18°C) |
| July Average | 62°F (17°C) |
| Sunny Days | 148 days/yr |
Geography
| Elevation | 5,669 ft (1,728 m) |
| Area | 316.8 sq mi (820.5 km²) |
| Population Density | 106/sq mi |
| Coordinates | -5.8575°N, 144.2306°W |
| Timezone | Pacific/Port_Moresby |
Precipitation & Snow
Air Quality
Earthquake History
587 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| Mar 3, 2000 | 62 km SSW of Ialibu, Papua New Guinea | M6.6 | 117 km | 10 km |
| Feb 26, 2018 | 59 km SW of Mendi, Papua New Guinea | M6.3 | 130 km | 19 km |
| Aug 19, 2012 | 95 km SE of Angoram, Papua New Guinea | M6.2 | 127 km | 73 km |
| Oct 21, 1992 | 68 km SSE of Ialibu, Papua New Guinea | M6.2 | 113 km | 19 km |
| Feb 12, 2007 | 92 km WNW of Madang, Papua New Guinea | M5.9 | 126 km | 42 km |
| Feb 26, 2018 | 52 km WSW of Mendi, Papua New Guinea | M5.9 | 123 km | 9 km |
| Feb 26, 2018 | 40 km SSW of Mendi, Papua New Guinea | M5.8 | 104 km | 22 km |
| Feb 27, 2018 | 62 km S of Tari, Papua New Guinea | M5.7 | 146 km | 12 km |
| Jul 28, 2014 | 71 km S of Ialibu, Papua New Guinea | M5.6 | 125 km | 10 km |
| Jan 14, 2018 | 113 km WNW of Madang, Papua New Guinea | M5.5 | 140 km | 56 km |
| Mar 10, 2000 | 57 km SSW of Ialibu, Papua New Guinea | M5.4 | 112 km | 10 km |
| Jul 24, 2014 | 54 km SW of Madang, Papua New Guinea | M5.4 | 136 km | 69 km |
| Feb 25, 2018 | 64 km WSW of Mendi, Papua New Guinea | M5.4 | 135 km | 10 km |
| Feb 2, 2005 | 78 km SSW of Kundiawa, Papua New Guinea | M5.4 | 99 km | 14 km |
| Jan 7, 2012 | 65 km WNW of Madang, Papua New Guinea | M5.4 | 139 km | 62 km |
| Jun 1, 2004 | 85 km SSW of Ialibu, Papua New Guinea | M5.4 | 139 km | 335 km |
| Jan 21, 2006 | 49 km W of Madang, Papua New Guinea | M5.4 | 146 km | 81 km |
| Feb 25, 2018 | 54 km WSW of Mendi, Papua New Guinea | M5.4 | 126 km | 10 km |
| Jan 16, 2018 | 66 km S of Angoram, Papua New Guinea | M5.4 | 134 km | 85 km |
| Feb 26, 1993 | 64 km NE of Mount Hagen, Papua New Guinea | M5.3 | 64 km | 15 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 15.0 m (49 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1999 | KASU CONE | Meteorological | 15.0 m | 1 | 73 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 65°F (18°C) | 10.9 in | Warmest |
| February | 65°F (18°C) | 11.2 in | |
| March | 65°F (18°C) | 11.8 in | Wettest |
| April | 64°F (18°C) | 9.8 in | |
| May | 65°F (18°C) | 7.4 in | |
| June | 63°F (17°C) | 5.0 in | Driest |
| July | 62°F (17°C) | 5.6 in | Coldest |
| August | 63°F (17°C) | 5.9 in | |
| September | 64°F (18°C) | 7.8 in | |
| October | 64°F (18°C) | 9.1 in | |
| November | 64°F (18°C) | 8.5 in | |
| December | 65°F (18°C) | 10.8 in |
Mount Hagen has a seasonal temperature swing of 2°F / from 62°F in July to 65°F in January. Total annual precipitation is 103.8 inches, with March being the wettest month (11.8") and June the driest (5.0").