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Mombetsu, Japan

Full City Profile

4.1 /5.0
A Great
22,983 Population 72/sq mi density
52 ft Elevation 16 meters
42°F Avg Temperature 6°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
Mombetsu has a cool climate with an average annual temperature of 42°F (6°C). Winters average 20°F in January while summers reach 62°F in July. The area gets 275 sunny days per year. Annual precipitation totals 33.7 inches. The area receives 7.6 inches of snow annually.

Temperature

20°F Jan (-7°C) 62°F Jul (17°C)
Annual Average42.3°F
22% below US avg
January Average20°F (-7°C)
July Average62°F (17°C)
Sunny Days275 days/yr

Geography

Elevation52 ft (16 m)
Area320.7 sq mi (830.7 km²)
Population Density72/sq mi
Coordinates44.3525°N, 143.3525°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 33.7"
11% below US avg
Snowfall 7.6"
Wettest Month (Aug) 4.80"
Driest Month (Feb) 1.42"

Air Quality

Earthquake History

230 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.6. Most recent: M4.3 on Jun 29, 2025.

Jan 15, 1993 52 km NE of Otofuke, Japan M7.6 120 km
Oct 21, 2011 16 km NE of Asahikawa, Japan M6.1 87 km
Nov 15, 1997 19 km NNW of Shibetsu, Japan M6.1 146 km
Feb 19, 2003 26 km NNE of Rumoi, Japan M5.9 126 km
Jul 1, 2007 32 km W of Shibetsu, Japan M5.8 135 km
Oct 25, 1991 36 km N of Kushiro, Japan M5.5 142 km
Dec 22, 1997 17 km ENE of Otofuke, Japan M5.3 142 km
Jun 20, 2021 29 km NE of Shimo-furano, Japan M5.3 106 km
Aug 15, 1990 43 km ESE of Kamikawa, Japan M5.3 66 km
Jan 8, 2015 21 km W of Shibetsu, Japan M5.3 142 km
Sep 15, 1995 48 km WNW of Kushiro, Japan M5.2 148 km
Aug 13, 2013 35 km WSW of Kitami, Japan M5.1 71 km
Apr 10, 2006 30 km W of Shibetsu, Japan M5.1 134 km
May 21, 2013 83 km ESE of Makubetsu, Japan M5.1 96 km
Aug 10, 2022 51 km SSE of Makubetsu, Japan M5.1 120 km
Feb 21, 1990 27 km SSW of Nayoro, Japan M5.1 89 km
Jul 5, 2024 10 km WNW of Nayoro, Japan M5.1 82 km
Nov 10, 1990 23 km W of Nayoro, Japan M5.1 95 km
Jul 20, 1993 33 km W of Nayoro, Japan M5.0 104 km
May 10, 2005 35 km E of Kamikawa, Japan M5.0 65 km
Source: USGS (M2.5+, 1990–2025)

Tsunami History

3 tsunamis recorded within 500 km. Highest wave on record: 0.9 m (3 ft).

Year Location Cause Max Wave Deaths Distance
1938 E. HOKKAIDO ISLAND Earthquake 0.9 m 1 113 km
1956 NE. HOKKAIDO ISLAND Earthquake 0.4 m — 60 km
1863 NW. HOKKAIDO ISLAND Earthquake — — 150 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

9 volcanoes within 200 km. Closest: Taisetsuzan (86 km).

Name Type Elevation Last Eruption Distance
Taisetsuzan Stratovolcano(es) 2,291 m (7,516 ft) 1739 86 km
Maruyama Stratovolcano(es) 2,013 m (6,604 ft) 1898 107 km
Tokachidake Stratovolcano(es) 2,077 m (6,814 ft) 2004 117 km
Kussharo Caldera 574 m (1,883 ft) 1320 119 km
Akan Caldera 1,499 m (4,918 ft) 2008 120 km
Mashu Caldera 857 m (2,812 ft) 1080 130 km
Shiretoko-Iozan Stratovolcano 1,562 m (5,125 ft) 1936 146 km
Tomariyama [Golovnin] Caldera 535 m (1,755 ft) 1848 181 km
Raususan [Mendeleev] Stratovolcano 882 m (2,894 ft) 1880 194 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 20°F (-7°C) 2.1 in
February 19°F (-7°C) 1.4 in Coldest, Driest
March 27°F (-3°C) 2.0 in
April 39°F (4°C) 2.0 in
May 48°F (9°C) 2.6 in
June 54°F (12°C) 2.8 in
July 62°F (17°C) 3.6 in
August 66°F (19°C) 4.8 in Warmest, Wettest
September 60°F (16°C) 4.7 in
October 49°F (10°C) 3.3 in
November 37°F (3°C) 2.4 in
December 26°F (-3°C) 2.1 in

Mombetsu has a seasonal temperature swing of 47°F / from 19°F in February to 66°F in August. Total annual precipitation is 33.7 inches, with August being the wettest month (4.8") and February the driest (1.4").

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