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Weather & Climate in Mendi, Papua New Guinea
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mendi enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 62°F in January while summers reach 60°F in July / relatively mild seasonal variation. The area gets 139 sunny days per year, below the national average of 205. Annual precipitation totals 108.5 inches (wetter than the 38-inch national average). The city sits at an elevation of 5,673 feet.
Temperature
62°F Jan (16°C)
60°F Jul (15°C)
| Annual Average | 61.0°F |
| 13% above US avg | |
| January Average | 62°F (16°C) |
| July Average | 60°F (15°C) |
| Sunny Days | 139 days/yr |
Geography
| Elevation | 5,673 ft (1,729 m) |
| Area | 316.7 sq mi (820.1 km²) |
| Population Density | 83/sq mi |
| Coordinates | -6.1476°N, 143.6563°W |
| Timezone | Pacific/Port_Moresby |
Precipitation & Snow
Air Quality
Earthquake History
573 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.5.
| Feb 25, 2018 | 32 km SW of Tari, Papua New Guinea | M7.5 | 100 km | 25 km |
| Mar 6, 2018 | 62 km SW of Tari, Papua New Guinea | M6.7 | 117 km | 20 km |
| Mar 3, 2000 | 62 km SSW of Ialibu, Papua New Guinea | M6.6 | 76 km | 10 km |
| Feb 26, 2018 | 59 km SW of Mendi, Papua New Guinea | M6.3 | 60 km | 19 km |
| Apr 7, 2018 | 45 km W of Tari, Papua New Guinea | M6.3 | 129 km | 18 km |
| Oct 21, 1992 | 68 km SSE of Ialibu, Papua New Guinea | M6.2 | 99 km | 19 km |
| Aug 20, 1993 | 28 km SW of Tari, Papua New Guinea | M6.2 | 102 km | 15 km |
| Feb 28, 2018 | 63 km SW of Tari, Papua New Guinea | M6.1 | 131 km | 16 km |
| Mar 4, 2018 | 66 km SW of Tari, Papua New Guinea | M6.0 | 119 km | 10 km |
| Feb 26, 2018 | 52 km WSW of Mendi, Papua New Guinea | M5.9 | 52 km | 9 km |
| Sep 5, 2023 | Enga, Papua New Guinea | M5.8 | 127 km | 49 km |
| Feb 26, 2018 | 40 km SSW of Mendi, Papua New Guinea | M5.8 | 41 km | 22 km |
| Feb 27, 2018 | 62 km S of Tari, Papua New Guinea | M5.7 | 75 km | 12 km |
| Mar 4, 2018 | 35 km SW of Tari, Papua New Guinea | M5.7 | 104 km | 6 km |
| Dec 8, 2012 | 102 km S of Ialibu, Papua New Guinea | M5.6 | 123 km | 10 km |
| Jul 28, 2014 | 71 km S of Ialibu, Papua New Guinea | M5.6 | 89 km | 10 km |
| Mar 6, 2018 | 72 km SW of Tari, Papua New Guinea | M5.5 | 138 km | 10 km |
| Apr 7, 2018 | 64 km SSW of Tari, Papua New Guinea | M5.5 | 112 km | 10 km |
| Feb 26, 2018 | 33 km SW of Tari, Papua New Guinea | M5.4 | 106 km | 20 km |
| Jun 29, 2018 | 26 km WSW of Tari, Papua New Guinea | M5.4 | 104 km | 19 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis 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 | 32 km |
| 1922 | BISMARCK SEA | Earthquake | 1.8 m | — | 108 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 62°F (16°C) | 10.3 in | |
| February | 62°F (17°C) | 10.4 in | |
| March | 62°F (17°C) | 12.2 in | Wettest |
| April | 62°F (17°C) | 9.6 in | |
| May | 62°F (17°C) | 7.6 in | Warmest |
| June | 60°F (16°C) | 6.5 in | |
| July | 60°F (15°C) | 6.5 in | Coldest, Driest |
| August | 60°F (15°C) | 7.7 in | |
| September | 60°F (16°C) | 8.5 in | |
| October | 61°F (16°C) | 9.7 in | |
| November | 61°F (16°C) | 8.9 in | |
| December | 61°F (16°C) | 10.7 in |
Mendi has a seasonal temperature swing of 2°F / from 60°F in July to 62°F in May. Total annual precipitation is 108.6 inches, with March being the wettest month (12.2") and July the driest (6.5").