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Weather & Climate in Tenakee Springs, AK
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tenakee Springs has a cool climate with an average annual temperature of 43°F (6°C). Winters average 31°F in January while summers reach 58°F in July. The area gets 166 sunny days per year, below the national average of 205. Annual precipitation totals 65.8 inches (wetter than the 38-inch national average). The area receives 90.0 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 21 / among the cleanest air in the country. The city sits at an elevation of 1,092 feet.
Temperature
31°F Jan (-1°C)
58°F Jul (14°C)
| Annual Average | 43.1°F |
| 20% below US avg | |
| January Average | 31°F (-1°C) |
| July Average | 58°F (14°C) |
| Sunny Days | 166 days/yr |
Geography
| Elevation | 1,092 ft (333 m) |
| Area | 19.1 sq mi (49.5 km²) |
| Population Density | 13/sq mi |
| Coordinates | 57.7901°N, 135.1354°W |
| Timezone | America/Anchorage |
| County | Sitka City and Borough County |
| Nearest Airport | Juneau International (JNU) 44 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 21.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 23.8 / 100 |
| Social Vulnerability | 55.1 / 100 |
| Community Resilience | 80.9 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | No Rating |
| Strong Wind | No Rating |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Very Low |
| Landslide | Relatively High |
| Coastal Flood | Very Low |
| Tsunami | Relatively Low |
| Volcano | Relatively Moderate |
| Avalanche | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
356 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.1.
| Jan 6, 2000 | 35 km WSW of Elfin Cove, Alaska | M6.1 | 106 km | 1 km |
| Jul 25, 2014 | 40 km WNW of Elfin Cove, Alaska | M6.0 | 124 km | 10 km |
| Jun 24, 1991 | 34 km WNW of Elfin Cove, Alaska | M5.6 | 119 km | 0 km |
| Jun 7, 2009 | 66 km NNW of Elfin Cove, Alaska | M5.0 | 141 km | 5 km |
| Jul 25, 2014 | 43 km WNW of Elfin Cove, Alaska | M4.7 | 127 km | 10 km |
| Jul 25, 2014 | 41 km WNW of Elfin Cove, Alaska | M4.7 | 125 km | 10 km |
| Jan 6, 2000 | 30 km WSW of Elfin Cove, Alaska | M4.6 | 102 km | 1 km |
| Dec 16, 1998 | 39 km SW of Sitka, Alaska | M4.6 | 119 km | 12 km |
| Jul 25, 2014 | 44 km W of Elfin Cove, Alaska | M4.6 | 126 km | 2 km |
| Jan 16, 2017 | 30 km W of Elfin Cove, Alaska | M4.5 | 109 km | 13 km |
| Feb 24, 1997 | 45 km NNW of Gustavus, Alaska | M4.5 | 124 km | 5 km |
| Feb 18, 2015 | 43 km WNW of Elfin Cove, Alaska | M4.5 | 127 km | 3 km |
| Jan 14, 2022 | 56 km SSW of Pelican, Alaska | M4.5 | 87 km | 14 km |
| Jul 25, 2014 | 39 km WNW of Elfin Cove, Alaska | M4.4 | 123 km | 10 km |
| Jun 24, 1991 | 37 km WNW of Elfin Cove, Alaska | M4.3 | 122 km | 0 km |
| Nov 4, 1991 | 42 km WNW of Elfin Cove, Alaska | M4.2 | 125 km | 10 km |
| Oct 19, 1999 | 42 km WSW of Elfin Cove, Alaska | M4.2 | 110 km | 0 km |
| May 11, 2008 | 65 km NW of Elfin Cove, Alaska | M4.2 | 149 km | 6 km |
| Oct 3, 2013 | 64 km WNW of Elfin Cove, Alaska | M4.2 | 148 km | 5 km |
| Jan 16, 2017 | 28 km W of Elfin Cove, Alaska | M4.1 | 109 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
8 tsunamis recorded within 500 km. Highest wave on record: 524.6 m (1,721 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1958 | SE. ALASKA, AK | Eruption + Earthquake | 524.6 m | 5 | 111 km |
| 2025 | TRACY ARM, AK | Meteorological | 470.0 m | — | 123 km |
| 1936 | LITUYA BAY, AK | Meteorological | 149.4 m | — | 146 km |
| 1917 | TAKU INLET, JUNEAU, AK | Meteorological | 2.4 m | 1 | 74 km |
| 1880 | SITKA, AK | Eruption + Earthquake | 1.8 m | — | 102 km |
| 1972 | SE. ALASKA, AK | Eruption + Earthquake | 0.1 m | — | 113 km |
| 2014 | PALMA BAY, AK | Earthquake | 0.1 m | — | 124 km |
| 1927 | SE. ALASKA, AK | Eruption + Earthquake | — | — | 57 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
1 volcano within 200 km. Closest: Edgecumbe (90 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Edgecumbe | Stratovolcano(es) | 970 m (3,182 ft) | -2220 | 90 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 31°F (-1°C) | 7.6 in | |
| February | 32°F (-0°C) | 6.1 in | |
| March | 33°F (0°C) | 5.5 in | |
| April | 39°F (4°C) | 4.3 in | |
| May | 45°F (7°C) | 4.3 in | |
| June | 52°F (11°C) | 3.9 in | Driest |
| July | 58°F (14°C) | 4.8 in | Warmest |
| August | 55°F (13°C) | 6.5 in | |
| September | 49°F (10°C) | 10.2 in | |
| October | 42°F (5°C) | 12.5 in | Wettest |
| November | 34°F (1°C) | 8.9 in | |
| December | 31°F (-1°C) | 8.2 in | Coldest |
Tenakee Springs has a seasonal temperature swing of 27°F / from 31°F in December to 58°F in July. Total annual precipitation is 82.8 inches, with October being the wettest month (12.5") and June the driest (3.9").