Sign In Register

Alotau, Papua New Guinea

Full City Profile

10,025 Population 32/sq mi density
36 ft Elevation 11 meters
77°F Avg Temperature 25°C
Alotau has a warm climate with an average annual temperature of 77°F (25°C). Winters average 79°F in January while summers reach 74°F in July. The area gets 130 sunny days per year. Annual precipitation totals 113.8 inches. The area receives 0.0 inches of snow annually.

Temperature

79°F Jan (26°C) 74°F Jul (23°C)
Annual Average76.8°F
42% above US avg
January Average79°F (26°C)
July Average74°F (23°C)
Sunny Days130 days/yr

Geography

Elevation36 ft (11 m)
Area313.3 sq mi (811.6 km²)
Population Density32/sq mi
Coordinates-10.3151°N, 150.4574°W
TimezonePacific/Port_Moresby

Precipitation & Snow

Annual Rainfall 113.8"
199% above US avg
Snowfall 0.0"
Wettest Month (Apr) 11.85"
Driest Month (Nov) 6.02"

Air Quality

Earthquake History

97 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.1. Most recent: M4.4 on Jun 13, 2025.

May 22, 1995 135 km ENE of Alotau, Papua New Guinea M6.1 136 km
Jun 23, 2022 115 km NW of Alotau, Papua New Guinea M5.5 115 km
Mar 11, 1999 131 km NNW of Alotau, Papua New Guinea M5.4 132 km
Apr 9, 2010 103 km NW of Alotau, Papua New Guinea M5.4 104 km
May 5, 1992 138 km NE of Samarai, Papua New Guinea M5.4 144 km
May 21, 2008 60 km NE of Alotau, Papua New Guinea M5.4 60 km
Apr 16, 1999 97 km NNE of Alotau, Papua New Guinea M5.4 98 km
Aug 5, 1994 122 km NNW of Alotau, Papua New Guinea M5.3 123 km
Oct 7, 2013 137 km ENE of Samarai, Papua New Guinea M5.3 149 km
May 15, 2015 65 km N of Alotau, Papua New Guinea M5.3 66 km
Feb 26, 1990 109 km NW of Alotau, Papua New Guinea M5.2 109 km
May 21, 2008 64 km NE of Alotau, Papua New Guinea M5.2 65 km
Sep 18, 2019 55 km NNW of Alotau, Papua New Guinea M5.1 56 km
Feb 23, 2019 80 km NW of Alotau, Papua New Guinea M5.1 80 km
Apr 17, 2019 94 km NNE of Alotau, Papua New Guinea M5.1 95 km
Apr 17, 2019 113 km NNE of Alotau, Papua New Guinea M5.0 113 km
Jan 16, 2020 95 km NE of Alotau, Papua New Guinea M5.0 96 km
Sep 13, 1991 76 km NW of Alotau, Papua New Guinea M5.0 76 km
Jun 20, 2007 122 km N of Alotau, Papua New Guinea M4.9 123 km
Sep 4, 2010 132 km N of Alotau, Papua New Guinea M4.9 133 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

2 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 3.

Year Name Category Closest
2026 Narelle Category 2 291 km
2014 Ita Category 3 110 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Nearby Volcanoes

4 volcanoes within 200 km. Closest: Iamalele (89 km).

Name Type Elevation Last Eruption Distance
Iamalele Lava dome(s) 200 m (656 ft) Unknown 89 km
Dawson Strait Group Volcanic field 500 m (1,640 ft) 1350 90 km
Goodenough Volcanic field 220 m (722 ft) Unknown 94 km
Victory Stratovolcano 1,925 m (6,316 ft) 1935 196 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 79°F (26°C) 9.1 in
February 79°F (26°C) 8.9 in Warmest
March 78°F (26°C) 9.8 in
April 77°F (25°C) 11.9 in Wettest
May 77°F (25°C) 10.4 in
June 75°F (24°C) 11.0 in
July 74°F (23°C) 11.1 in Coldest
August 74°F (24°C) 9.2 in
September 75°F (24°C) 9.1 in
October 77°F (25°C) 9.6 in
November 78°F (25°C) 6.0 in Driest
December 79°F (26°C) 7.6 in

Alotau has a seasonal temperature swing of 5°F / from 74°F in July to 79°F in February. Total annual precipitation is 113.8 inches, with April being the wettest month (11.9") and November the driest (6.0").

View full weather details →