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Weather & Climate in Mizumotomachi, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mizumotomachi has a cool climate with an average annual temperature of 44°F (7°C). Winters average 20°F in January while summers reach 64°F in July. The area gets 269 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 36.8 inches. The area receives 8.5 inches of snow annually. The city sits at an elevation of 72 feet.
Temperature
20°F Jan (-7°C)
64°F Jul (18°C)
| Annual Average | 44.1°F |
| 18% below US avg | |
| January Average | 20°F (-7°C) |
| July Average | 64°F (18°C) |
| Sunny Days | 269 days/yr |
Geography
| Elevation | 72 ft (22 m) |
| Area | 1,571.6 sq mi (4,070.4 km²) |
| Population Density | 3/sq mi |
| Coordinates | 43.8376°N, 144.5961°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
633 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.6.
| Jan 15, 1993 | 52 km NE of Otofuke, Japan | M7.6 | 94 km | 102 km |
| Oct 8, 2003 | 39 km SSE of Kushiro, Japan | M6.7 | 132 km | 32 km |
| Jan 18, 2005 | 40 km E of Kushiro, Japan | M6.3 | 102 km | 42 km |
| May 12, 1999 | 44 km W of Kushiro, Japan | M6.2 | 109 km | 103 km |
| Aug 31, 1994 | 36 km SSE of Yuzhno-Kurilsk, Russia | M6.2 | 115 km | 76 km |
| Jan 15, 1993 | 17 km W of Kushiro, Japan | M6.1 | 101 km | 112 km |
| Aug 24, 2002 | 50 km ESE of Nemuro, Japan | M6.1 | 147 km | 43 km |
| Apr 11, 2004 | 38 km E of Kushiro, Japan | M6.1 | 104 km | 42 km |
| Nov 15, 1997 | 19 km NNW of Shibetsu, Japan | M6.1 | 34 km | 161 km |
| Apr 26, 2001 | 37 km SE of Nemuro, Japan | M6.0 | 135 km | 86 km |
| Feb 25, 2023 | Hokkaido, Japan region | M6.0 | 118 km | 55 km |
| Nov 30, 1995 | 30 km NW of Otrada, Russia | M6.0 | 95 km | 137 km |
| Jul 1, 2007 | 32 km W of Shibetsu, Japan | M5.8 | 22 km | 130 km |
| Nov 14, 2000 | 60 km SSE of Kushiro, Japan | M5.6 | 147 km | 33 km |
| Sep 28, 2003 | 48 km SE of Kushiro, Japan | M5.6 | 136 km | 33 km |
| Apr 13, 2001 | 69 km SSW of Nemuro, Japan | M5.6 | 136 km | 33 km |
| May 6, 2004 | 72 km SE of Kushiro, Japan | M5.5 | 150 km | 29 km |
| Jan 30, 1990 | 36 km SSW of Nemuro, Japan | M5.5 | 116 km | 41 km |
| Feb 17, 2004 | 27 km SE of Nemuro, Japan | M5.5 | 125 km | 40 km |
| Sep 26, 2024 | 30 km SE of Akkeshi, Japan | M5.5 | 120 km | 50 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2000 | Sonamu | Category 1 | 58 mph | 255 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 6.0 m (20 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1973 | HOKKAIDO ISLAND | Earthquake | 6.0 m | — | 120 km |
| 1938 | E. HOKKAIDO ISLAND | Earthquake | 0.9 m | 1 | 36 km |
| 1956 | NE. HOKKAIDO ISLAND | Earthquake | 0.4 m | — | 65 km |
| 2004 | HOKKAIDO ISLAND | Earthquake | 0.1 m | — | 102 km |
| 1961 | SE. HOKKAIDO ISLAND | Earthquake | 0.1 m | — | 132 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
12 volcanoes within 200 km. Closest: Kussharo (28 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Kussharo | Caldera | 574 m (1,883 ft) | 1320 | 28 km |
| Mashu | Caldera | 857 m (2,812 ft) | 1080 | 30 km |
| Shiretoko-Iozan | Stratovolcano | 1,562 m (5,125 ft) | 1936 | 56 km |
| Akan | Caldera | 1,499 m (4,918 ft) | 2008 | 69 km |
| Tomariyama [Golovnin] | Caldera | 535 m (1,755 ft) | 1848 | 73 km |
| Raususan [Mendeleev] | Stratovolcano | 882 m (2,894 ft) | 1880 | 92 km |
| Maruyama | Stratovolcano(es) | 2,013 m (6,604 ft) | 1898 | 134 km |
| Ruruidake [Smirnov] | Stratovolcano | 1,486 m (4,875 ft) | Unknown | 141 km |
| Taisetsuzan | Stratovolcano(es) | 2,291 m (7,516 ft) | 1739 | 141 km |
| Chachadake [Tiatia] | Stratovolcano | 1,822 m (5,978 ft) | 1981 | 144 km |
| Tokachidake | Stratovolcano(es) | 2,077 m (6,814 ft) | 2004 | 161 km |
| Berutarubesan [Berutarube] | Stratovolcano | 1,221 m (4,006 ft) | Unknown | 199 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 2.3 in | Coldest |
| February | 20°F (-7°C) | 1.7 in | Driest |
| March | 29°F (-2°C) | 2.5 in | |
| April | 41°F (5°C) | 2.6 in | |
| May | 51°F (10°C) | 3.1 in | |
| June | 57°F (14°C) | 2.9 in | |
| July | 64°F (18°C) | 3.4 in | |
| August | 68°F (20°C) | 4.4 in | Warmest |
| September | 62°F (17°C) | 5.3 in | Wettest |
| October | 52°F (11°C) | 3.8 in | |
| November | 39°F (4°C) | 2.8 in | |
| December | 27°F (-3°C) | 2.1 in |
Mizumotomachi has a seasonal temperature swing of 48°F / from 20°F in January to 68°F in August. Total annual precipitation is 36.8 inches, with September being the wettest month (5.3") and February the driest (1.7").