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Tomamae, Japan

Full City Profile

4.1 /5.0
A Great
3,261 Population 19/sq mi density
115 ft Elevation 35 meters
45°F Avg Temperature 7°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.1 / 5.0
$28,900 median income, 3.0% unemployment
A+
Affordability
5.0 / 5.0
$68,000 home value, $340/mo rent
Tomamae has a cool climate with an average annual temperature of 45°F (7°C). Winters average 23°F in January while summers reach 67°F in July. The area gets 250 sunny days per year. Annual precipitation totals 47.5 inches. The area receives 14.1 inches of snow annually.

Temperature

23°F Jan (-5°C) 67°F Jul (19°C)
Annual Average45.0°F
17% below US avg
January Average23°F (-5°C)
July Average67°F (19°C)
Sunny Days250 days/yr

Geography

Elevation115 ft (35 m)
Area175.5 sq mi (454.6 km²)
Population Density19/sq mi
Coordinates44.3053°N, 141.6544°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 47.5"
25% above US avg
Snowfall 14.1"
Wettest Month (Sep) 5.67"
Driest Month (Apr) 2.24"

Air Quality

Earthquake History

248 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.2. Most recent: M4.9 on Feb 7, 2025.

Jan 11, 2016 74 km NW of Rumoi, Japan M6.2 49 km
Oct 21, 2011 16 km NE of Asahikawa, Japan M6.1 80 km
Jan 12, 2021 84 km NW of Yoichi, Japan M5.9 149 km
Feb 19, 2003 26 km NNE of Rumoi, Japan M5.9 21 km
May 23, 1995 Hokkaido, Japan region M5.6 73 km
Jan 22, 2013 77 km SSW of Rishiri Town, Japan M5.4 59 km
Aug 15, 1990 43 km ESE of Kamikawa, Japan M5.3 145 km
Jun 20, 2021 29 km NE of Shimo-furano, Japan M5.3 113 km
Feb 21, 1990 27 km SSW of Nayoro, Japan M5.1 53 km
May 21, 2013 83 km ESE of Makubetsu, Japan M5.1 131 km
Nov 10, 1990 23 km W of Nayoro, Japan M5.1 41 km
Aug 10, 2022 51 km SSE of Makubetsu, Japan M5.1 79 km
Jul 5, 2024 10 km WNW of Nayoro, Japan M5.1 54 km
Jul 20, 1993 33 km W of Nayoro, Japan M5.0 31 km
May 10, 2005 35 km E of Kamikawa, Japan M5.0 137 km
Oct 4, 1994 29 km E of Makubetsu, Japan M5.0 131 km
Feb 7, 2012 37 km ENE of Makubetsu, Japan M5.0 146 km
Jul 31, 2021 16 km NNE of T?betsu, Japan M5.0 106 km
May 18, 1990 4 km ENE of Rumoi, Japan M4.9 40 km
Feb 7, 2025 25 km NNW of Shintoku, Japan M4.9 141 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

4 tsunamis recorded within 500 km. Highest wave on record: 2.0 m (7 ft).

Year Location Cause Max Wave Deaths Distance
1947 W. HOKKAIDO ISLAND Earthquake 2.0 m 77 km
1863 NW. HOKKAIDO ISLAND Earthquake 35 km
1834 W. HOKKAIDO ISLAND Earthquake 114 km
1792 W. HOKKAIDO ISLAND Earthquake 123 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

6 volcanoes within 200 km. Closest: Taisetsuzan (120 km).

Name Type Elevation Last Eruption Distance
Taisetsuzan Stratovolcano(es) 2,291 m (7,516 ft) 1739 120 km
Tokachidake Stratovolcano(es) 2,077 m (6,814 ft) 2004 129 km
Maruyama Stratovolcano(es) 2,013 m (6,604 ft) 1898 148 km
Yoteizan Stratovolcano 1,888 m (6,194 ft) -1050 178 km
Niseko Stratovolcano(es) 1,308 m (4,291 ft) -4900 178 km
Shikotsu Caldera 1,320 m (4,331 ft) 1979 181 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 23°F (-5°C) 3.9 in Coldest
February 23°F (-5°C) 2.8 in
March 30°F (-1°C) 2.4 in
April 41°F (5°C) 2.2 in Driest
May 50°F (10°C) 2.5 in
June 58°F (15°C) 2.7 in
July 67°F (19°C) 3.8 in
August 69°F (21°C) 5.5 in Warmest
September 61°F (16°C) 5.7 in Wettest
October 51°F (10°C) 5.4 in
November 39°F (4°C) 5.6 in
December 29°F (-2°C) 5.0 in

Tomamae has a seasonal temperature swing of 47°F / from 23°F in January to 69°F in August. Total annual precipitation is 47.5 inches, with September being the wettest month (5.7") and April the driest (2.2").

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