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Wewak, Papua New Guinea

Full City Profile

18,230 Population 57/sq mi density
144 ft Elevation 44 meters
79°F Avg Temperature 26°C
Wewak has a warm climate with an average annual temperature of 79°F (26°C). Winters average 79°F in January while summers reach 78°F in July. The area gets 196 sunny days per year. Annual precipitation totals 77.3 inches. The area receives 0.0 inches of snow annually.

Temperature

79°F Jan (26°C) 78°F Jul (26°C)
Annual Average79.0°F
46% above US avg
January Average79°F (26°C)
July Average78°F (26°C)
Sunny Days196 days/yr

Geography

Elevation144 ft (44 m)
Area317.9 sq mi (823.3 km²)
Population Density57/sq mi
Coordinates-3.5496°N, 143.6323°W
TimezonePacific/Port_Moresby

Precipitation & Snow

Annual Rainfall 77.3"
103% above US avg
Snowfall 0.0"
Wettest Month (Nov) 8.07"
Driest Month (Jul) 5.28"

Air Quality

Earthquake History

811 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.6. Most recent: M4.0 on Aug 28, 2025.

Sep 8, 2002 68 km ESE of Aitape, Papua New Guinea M7.6 81 km
Apr 2, 2023 40 km ESE of Ambunti, Papua New Guinea M7.0 100 km
Mar 23, 2024 36 km ENE of Ambunti, Papua New Guinea M6.9 85 km
Jan 10, 2002 11 km SE of Aitape, Papua New Guinea M6.7 139 km
Aug 29, 1997 64 km NNE of Angoram, Papua New Guinea M6.6 81 km
Apr 16, 2013 23 km ESE of Aitape, Papua New Guinea M6.6 127 km
Jul 31, 2011 103 km NE of Angoram, Papua New Guinea M6.6 133 km
May 20, 2025 89 km ENE of Angoram, Papua New Guinea M6.5 133 km
Jun 7, 1990 68 km NE of Angoram, Papua New Guinea M6.5 89 km
Nov 7, 2017 67 km WSW of Angoram, Papua New Guinea M6.5 79 km
May 17, 1991 22 km SSW of Ambunti, Papua New Guinea M6.4 138 km
Apr 1, 2009 52 km E of Wewak, Papua New Guinea M6.4 52 km
Sep 16, 2002 41 km ESE of Aitape, Papua New Guinea M6.3 109 km
Feb 13, 1999 101 km ENE of Angoram, Papua New Guinea M6.2 133 km
Sep 5, 2024 59 km NNE of Angoram, Papua New Guinea M6.2 63 km
Oct 7, 2001 67 km ESE of Aitape, Papua New Guinea M6.2 83 km
Feb 12, 2003 49 km NNE of Angoram, Papua New Guinea M6.2 69 km
Apr 1, 2016 119 km NE of Angoram, Papua New Guinea M6.2 141 km
May 22, 1992 63 km NNE of Angoram, Papua New Guinea M6.2 66 km
Mar 24, 2006 63 km WNW of Wewak, Papua New Guinea M6.1 64 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

3 tsunamis recorded within 500 km. Highest wave on record: 15.0 m (49 ft).

Year Location Cause Max Wave Deaths Distance
1998 PAPUA NEW GUINEA Eruption + Earthquake 15.0 m 1,636 135 km
2002 BISMARCK SEA Earthquake 5.5 m 4 83 km
2018 KADOVAR ISLAND, PAPUA NEW GUINEA Astronomical 1.0 m — 106 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

1 volcano within 200 km. Closest: Manam (167 km).

Name Type Elevation Last Eruption Distance
Manam Stratovolcano 1,807 m (5,928 ft) 2020 167 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 79°F (26°C) 6.0 in
February 79°F (26°C) 6.0 in
March 79°F (26°C) 7.0 in
April 79°F (26°C) 7.3 in
May 80°F (26°C) 6.9 in Warmest
June 79°F (26°C) 5.4 in
July 78°F (26°C) 5.3 in Coldest, Driest
August 79°F (26°C) 5.4 in
September 79°F (26°C) 5.4 in
October 79°F (26°C) 7.6 in
November 79°F (26°C) 8.1 in Wettest
December 79°F (26°C) 7.1 in

Wewak has a seasonal temperature swing of 1°F / from 78°F in July to 80°F in May. Total annual precipitation is 77.3 inches, with November being the wettest month (8.1") and July the driest (5.3").

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