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Weather & Climate in Port Alberni, BC
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Port Alberni experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 41°F in January while summers reach 67°F in July. The area gets 219 sunny days per year. Annual precipitation totals 74.7 inches (wetter than the 38-inch national average). The area receives 55.3 inches of snow annually, making winter weather a significant factor for residents. The city sits at an elevation of 49 feet.
Temperature
41°F Jan (5°C)
67°F Jul (19°C)
| Annual Average | 51.4°F |
| 5% below US avg | |
| January Average | 41°F (5°C) |
| July Average | 67°F (19°C) |
| Sunny Days | 219 days/yr |
Geography
| Elevation | 49 ft (15 m) |
| Area | 7.6 sq mi (19.7 km²) |
| Population Density | 2,406/sq mi |
| Coordinates | 49.2413°N, 124.8028°W |
| Timezone | America/Vancouver |
Precipitation & Snow
Air Quality
Earthquake History
169 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Feb 21, 2025 | 28 km W of Squamish, Canada | M4.8 | 104 km | 10 km |
| Jan 8, 2015 | 19 km E of Tofino, Canada | M4.8 | 62 km | 25 km |
| May 2, 2001 | 50 km W of Tofino, Canada | M4.7 | 131 km | 10 km |
| Aug 1, 2000 | 40 km NNW of Tofino, Canada | M4.6 | 100 km | 41 km |
| Feb 23, 1991 | 67 km SSW of Vernon, Canada | M4.6 | 147 km | 34 km |
| Jan 24, 2020 | 46 km WNW of Neah Bay, Washington | M4.5 | 82 km | 10 km |
| Jun 24, 1997 | 19 km SSW of Gibsons, Canada | M4.4 | 86 km | 3 km |
| Feb 18, 1990 | 66 km WSW of Tofino, Canada | M4.4 | 146 km | 33 km |
| Jan 23, 2001 | 9 km NNW of Ucluelet, Canada | M4.3 | 61 km | 10 km |
| Feb 22, 1996 | 31 km NNE of South Pender Harbour, Canada | M4.1 | 98 km | 2 km |
| Sep 21, 2002 | 9 km SW of Friday Harbor, Washington | M4.1 | 149 km | 23 km |
| Sep 12, 2001 | 63 km SW of Tofino, Canada | M4.0 | 140 km | 10 km |
| May 8, 1999 | 17 km NW of Tofino, Canada | M4.0 | 92 km | 33 km |
| Dec 25, 1999 | 40 km SW of Ucluelet, Canada | M4.0 | 102 km | 30 km |
| Sep 26, 2024 | 12 km E of Saanichton, Canada | M4.0 | 135 km | 52 km |
| Dec 27, 2012 | 12 km E of North Saanich, Canada | M4.0 | 131 km | 54 km |
| Nov 20, 1994 | 26 km N of Ucluelet, Canada | M3.9 | 54 km | 38 km |
| May 16, 2001 | 35 km NE of Tofino, Canada | M3.9 | 56 km | 10 km |
| Apr 7, 2001 | 36 km NNW of Neah Bay, Washington | M3.9 | 62 km | 32 km |
| Jun 19, 2017 | 21 km SSW of Vernon, Canada | M3.9 | 140 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 9.0 m (30 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1946 | BRITISH COLUMBIA | Eruption + Earthquake | 9.0 m | 1 | 70 km |
| 1958 | RIPPLE ROCK, BC | Earthquake + Landslide | 0.5 m | — | 100 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
4 volcanoes within 200 km. Closest: Garibaldi (147 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 147 km |
| Cayley Volcanic Field | Volcanic field | 2,375 m (7,792 ft) | Unknown | 147 km |
| Garibaldi Lake | Volcanic field | 2,316 m (7,598 ft) | Unknown | 151 km |
| Meager | Complex | 2,680 m (8,793 ft) | -410 | 180 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 11.7 in | |
| February | 38°F (3°C) | 8.7 in | |
| March | 40°F (5°C) | 7.7 in | |
| April | 45°F (7°C) | 5.0 in | |
| May | 51°F (10°C) | 3.2 in | |
| June | 56°F (13°C) | 2.5 in | |
| July | 67°F (19°C) | 1.4 in | Warmest, Driest |
| August | 61°F (16°C) | 1.9 in | |
| September | 56°F (13°C) | 2.3 in | |
| October | 48°F (9°C) | 7.8 in | |
| November | 40°F (4°C) | 12.8 in | Wettest |
| December | 35°F (2°C) | 11.5 in | Coldest |
Port Alberni has a seasonal temperature swing of 31°F / from 35°F in December to 67°F in July. Total annual precipitation is 76.5 inches, with November being the wettest month (12.8") and July the driest (1.4").