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Weather & Climate in Mizusawa, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mizusawa experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 27°F in January while summers reach 71°F in July. The area gets 225 sunny days per year, above the national average. Annual precipitation totals 61.0 inches (wetter than the 38-inch national average). The area receives 17.8 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 774 feet.
Temperature
27°F Jan (-3°C)
71°F Jul (22°C)
| Annual Average | 49.0°F |
| 9% below US avg | |
| January Average | 27°F (-3°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 225 days/yr |
Geography
| Elevation | 774 ft (236 m) |
| Area | 228.8 sq mi (592.7 km²) |
| Population Density | 22/sq mi |
| Coordinates | 38.4342°N, 140.1014°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
769 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.1.
| Apr 7, 2011 | 29 km ESE of Ishinomaki, Japan | M7.1 | 131 km | 42 km |
| May 26, 2003 | 27 km SSW of ?funato, Japan | M7.0 | 136 km | 68 km |
| Mar 20, 2021 | 30 km E of Ishinomaki, Japan | M7.0 | 135 km | 43 km |
| Jun 13, 2008 | 24 km WSW of Mizusawa, Japan | M6.9 | 95 km | 8 km |
| May 1, 2021 | 30 km SSE of Onagawa Ch?, Japan | M6.9 | 133 km | 43 km |
| Dec 2, 2001 | 3 km NW of Hanamaki, Japan | M6.5 | 137 km | 124 km |
| Jun 18, 2019 | 31 km WSW of Tsuruoka, Japan | M6.4 | 59 km | 12 km |
| Mar 11, 2011 | 30 km NNE of Namie, Japan | M6.3 | 124 km | 32 km |
| Jul 24, 2011 | 43 km NE of Namie, Japan | M6.3 | 137 km | 40 km |
| Mar 12, 2011 | 55 km SE of Ishinomaki, Japan | M6.1 | 148 km | 15 km |
| Jul 25, 2003 | 7 km NW of Matsushima, Japan | M6.1 | 78 km | 6 km |
| Aug 10, 1996 | 25 km NE of Shinj?, Japan | M6.0 | 65 km | 10 km |
| Mar 11, 2011 | 17 km ESE of Namie, Japan | M6.0 | 146 km | 49 km |
| May 18, 2013 | 50 km NE of Namie, Japan | M6.0 | 143 km | 39 km |
| Mar 11, 2011 | 15 km E of Namie, Japan | M6.0 | 143 km | 37 km |
| Apr 12, 2011 | 8 km WSW of Ishikawa, Japan | M5.9 | 149 km | 11 km |
| Apr 17, 2013 | 29 km ENE of Ishinomaki, Japan | M5.9 | 133 km | 51 km |
| Mar 11, 2011 | 4 km SSW of Namie, Japan | M5.9 | 134 km | 40 km |
| Apr 11, 2011 | 14 km SSE of Marumori, Japan | M5.8 | 95 km | 10 km |
| Nov 27, 1993 | 9 km NNE of Wakuya, Japan | M5.8 | 95 km | 104 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
14 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 2019 | Faxai | Category 2 | 92 mph | 230 km |
| 2019 | Hagibis | Category 1 | 75 mph | 151 km |
| 2011 | Roke | Category 1 | 81 mph | 293 km |
| 2005 | Mawar | Category 1 | 58 mph | 281 km |
| 2004 | Ma-on | Category 2 | 63 mph | 220 km |
| 2002 | Higos | Category 1 | 75 mph | 66 km |
| 2001 | Danas | Category 1 | 63 mph | 228 km |
| 2000 | Kirogi | Category 1 | 69 mph | 180 km |
| 1998 | Vicki | Category 2 | 63 mph | 62 km |
| 1998 | Stella | Category 1 | 63 mph | 251 km |
| 1996 | Violet | Category 1 | 81 mph | 283 km |
| 1995 | Ryan | Category 1 | 40 mph | 230 km |
| 1993 | Vernon | Category 1 | 69 mph | 184 km |
| 1981 | Thad | Category 1 | — | 271 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
10 tsunamis recorded within 500 km. Highest wave on record: 9.0 m (30 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1833 | NW. HONSHU ISLAND | Earthquake | 9.0 m | 85 | 98 km |
| 1964 | NW. HONSHU ISLAND | Earthquake | 5.8 m | 36 | 76 km |
| 2008 | ARATOZAWA, JAPAN | Eruption + Earthquake | 2.5 m | 23 | 95 km |
| 1804 | NW. HONSHU ISLAND | Earthquake | 1.0 m | 450 | 70 km |
| 2019 | NIIGATA | Earthquake | 0.1 m | — | 60 km |
| 2011 | E. COAST HONSHU ISLAND | Earthquake | 0.1 m | 3 | 131 km |
| 1894 | YAMAGATA, JAPAN | Earthquake | — | 726 | 58 km |
| 1762 | NW. HONSHU ISLAND | Earthquake | — | — | 128 km |
| 1644 | HONJO, AKITA | Earthquake | — | 117 | 107 km |
| 850 | NW. HONSHU ISLAND | Eruption + Earthquake | — | — | 65 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Zaozan [Zaosan] (44 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Zaozan [Zaosan] | Complex | 1,841 m (6,040 ft) | 1940 | 44 km |
| Naruko | Caldera | 470 m (1,542 ft) | 837 | 64 km |
| Chokaisan | Stratovolcano(es) | 2,236 m (7,336 ft) | 1974 | 74 km |
| Azumayama | Stratovolcano(es) | 1,949 m (6,394 ft) | 1977 | 79 km |
| Kurikomayama | Stratovolcano | 1,627 m (5,338 ft) | 1950 | 84 km |
| Adatarayama | Stratovolcano(es) | 1,728 m (5,669 ft) | 1996 | 89 km |
| Bandaisan | Stratovolcano | 1,816 m (5,958 ft) | 1888 | 93 km |
| Numazawa | Shield | 835 m (2,740 ft) | -3400 | 120 km |
| Nasudake | Stratovolcano(es) | 1,915 m (6,283 ft) | 1963 | 146 km |
| Akita-Komagatake | Stratovolcano(es) | 1,637 m (5,371 ft) | 1971 | 159 km |
| Megata | Maar(s) | 291 m (955 ft) | -2050 | 172 km |
| Takaharayama | Stratovolcano | 1,795 m (5,889 ft) | -4570 | 173 km |
| Iwatesan | Complex | 2,038 m (6,686 ft) | 1919 | 176 km |
| Akita-Yakeyama | Stratovolcano | 1,366 m (4,482 ft) | 1997 | 179 km |
| Hiuchigatake | Stratovolcano | 2,356 m (7,730 ft) | 1544 | 180 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 27°F (-3°C) | 5.0 in | Coldest |
| February | 28°F (-3°C) | 3.9 in | |
| March | 32°F (0°C) | 3.6 in | Driest |
| April | 45°F (7°C) | 3.8 in | |
| May | 56°F (13°C) | 3.7 in | |
| June | 63°F (17°C) | 5.0 in | |
| July | 71°F (22°C) | 6.8 in | |
| August | 73°F (23°C) | 6.9 in | Warmest, Wettest |
| September | 65°F (18°C) | 6.5 in | |
| October | 53°F (12°C) | 5.0 in | |
| November | 42°F (6°C) | 5.4 in | |
| December | 33°F (0°C) | 5.3 in |
Mizusawa has a seasonal temperature swing of 46°F / from 27°F in January to 73°F in August. Total annual precipitation is 61.0 inches, with August being the wettest month (6.9") and March the driest (3.6").