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Weather & Climate in Tsugawa, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tsugawa experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 30°F in January while summers reach 73°F in July. The area gets 209 sunny days per year. Annual precipitation totals 70.2 inches (wetter than the 38-inch national average). The area receives 16.8 inches of snow annually, a moderate snowfall amount. The city sits at an elevation of 200 feet.
Temperature
30°F Jan (-1°C)
73°F Jul (23°C)
| Annual Average | 51.5°F |
| 5% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 73°F (23°C) |
| Sunny Days | 209 days/yr |
Geography
| Elevation | 200 ft (61 m) |
| Area | 491.9 sq mi (1,273.9 km²) |
| Population Density | 20/sq mi |
| Coordinates | 37.6811°N, 139.4583°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
697 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.6.
| Jul 16, 2007 | 20 km NNW of Kashiwazaki, Japan | M6.6 | 91 km | 12 km |
| Apr 11, 2011 | 17 km SSW of Ishikawa, Japan | M6.6 | 113 km | 11 km |
| Jun 18, 2019 | 31 km WSW of Tsuruoka, Japan | M6.4 | 107 km | 12 km |
| Mar 11, 2011 | 13 km E of Arai, Japan | M6.2 | 121 km | 9 km |
| Jan 9, 2024 | 53 km WSW of Sado, Japan | M5.9 | 149 km | 10 km |
| May 11, 1997 | 5 km NNE of Iwaki, Japan | M5.9 | 144 km | 49 km |
| Apr 12, 2011 | 8 km WSW of Ishikawa, Japan | M5.9 | 103 km | 11 km |
| Mar 11, 2011 | 4 km SSW of Namie, Japan | M5.9 | 137 km | 40 km |
| Feb 25, 2013 | 29 km NE of Numata, Japan | M5.8 | 95 km | 10 km |
| Aug 11, 2011 | 1 km SSE of Iwaki, Japan | M5.8 | 146 km | 44 km |
| Apr 11, 2011 | 14 km SSE of Marumori, Japan | M5.8 | 120 km | 10 km |
| Apr 16, 2011 | 6 km ENE of Tanuma, Japan | M5.8 | 146 km | 77 km |
| Jul 16, 2007 | 16 km NNW of Kashiwazaki, Japan | M5.7 | 90 km | 15 km |
| Mar 19, 2011 | 8 km WNW of Daigo, Japan | M5.7 | 122 km | 6 km |
| Dec 3, 1996 | 35 km SE of Muramatsu, Japan | M5.7 | 22 km | 139 km |
| Mar 11, 2011 | eastern Honshu, Japan | M5.7 | 131 km | 12 km |
| Apr 1, 2012 | 9 km NE of Iwaki, Japan | M5.7 | 147 km | 48 km |
| Jan 22, 1992 | 8 km WNW of Higashine, Japan | M5.7 | 115 km | 116 km |
| Apr 11, 2011 | 8 km WSW of Iiyama, Japan | M5.5 | 142 km | 17 km |
| Mar 22, 2011 | 12 km ESE of Ishikawa, Japan | M5.5 | 118 km | 38 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
20 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.
| Year | Name | Category | Max Wind | Closest |
| 2019 | Faxai | Category 2 | 92 mph | 206 km |
| 2019 | Hagibis | Category 1 | 81 mph | 127 km |
| 2018 | Jebi | Category 1 | 81 mph | 256 km |
| 2011 | Roke | Category 1 | 81 mph | 199 km |
| 2007 | Fitow | Category 1 | 75 mph | 233 km |
| 2005 | Mawar | Category 2 | 75 mph | 232 km |
| 2004 | Ma-on | Category 3 | 81 mph | 206 km |
| 2002 | Higos | Category 1 | 81 mph | 131 km |
| 2001 | Danas | Category 1 | 63 mph | 165 km |
| 2000 | Kirogi | Category 1 | 81 mph | 210 km |
| 1998 | Vicki | Category 2 | 69 mph | 91 km |
| 1998 | Stella | Category 1 | 63 mph | 166 km |
| 1996 | Violet | Category 1 | 81 mph | 273 km |
| 1996 | Kirk | Category 1 | 63 mph | 278 km |
| 1995 | Ryan | Category 1 | 40 mph | 263 km |
| 1994 | Orchid | Category 1 | 69 mph | 255 km |
| 1993 | Vernon | Category 1 | 75 mph | 188 km |
| 1990 | Flo | Category 1 | 58 mph | 256 km |
| 1981 | Thad | Category 1 | - | 196 km |
| 1981 | Gay | Category 1 | 75 mph | 294 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tsunami History
13 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 | 138 km |
| 1964 | NW. HONSHU ISLAND | Earthquake | 5.8 m | 36 | 81 km |
| 1987 | HONSHU ISLAND | Earthquake | 0.2 m | - | 143 km |
| 2019 | NIIGATA | Earthquake | 0.1 m | - | 107 km |
| 2007 | HONSHU: W COAST | Earthquake | - | 15 | 87 km |
| 1894 | YAMAGATA, JAPAN | Earthquake | - | 726 | 139 km |
| 1802 | NW. HONSHU ISLAND | Earthquake | - | 19 | 102 km |
| 1762 | NW. HONSHU ISLAND | Earthquake | - | - | 81 km |
| 1751 | NW. HONSHU ISLAND | Eruption + Earthquake | - | 2,100 | 131 km |
| 1614 | NIIGATA PREFECTURE | Earthquake | - | - | 130 km |
| 1448 | SADO, JAPAN | Earthquake | - | - | 113 km |
| 887 | NIIGATA | Earthquake | - | 2,000 | 121 km |
| 863 | NW. HONSHU ISLAND | Eruption + Earthquake | - | - | 144 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Numazawa (28 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Numazawa | Shield | 835 m (2,740 ft) | -3400 | 28 km |
| Bandaisan | Stratovolcano | 1,816 m (5,958 ft) | 1888 | 55 km |
| Azumayama | Stratovolcano(es) | 1,949 m (6,394 ft) | 1977 | 69 km |
| Adatarayama | Stratovolcano(es) | 1,728 m (5,669 ft) | 1996 | 73 km |
| Nasudake | Stratovolcano(es) | 1,915 m (6,283 ft) | 1963 | 76 km |
| Hiuchigatake | Stratovolcano | 2,356 m (7,730 ft) | 1544 | 82 km |
| Takaharayama | Stratovolcano | 1,795 m (5,889 ft) | -4570 | 91 km |
| Nikko-Shiranesan | Shield | 2,578 m (8,458 ft) | 1952 | 98 km |
| Omanago Group | Lava dome(s) | 2,341 m (7,680 ft) | -3050 | 99 km |
| Zaozan [Zaosan] | Complex | 1,841 m (6,040 ft) | 1940 | 100 km |
| Nantaisan | Stratovolcano | 2,486 m (8,156 ft) | -9540 | 102 km |
| Akagisan | Stratovolcano | 1,828 m (5,997 ft) | Unknown | 127 km |
| Shiga | Shield(s) | 2,041 m (6,696 ft) | Unknown | 138 km |
| Kusatsu-Shiranesan | Stratovolcano(es) | 2,165 m (7,103 ft) | 2018 | 144 km |
| Harunasan | Stratovolcano | 1,449 m (4,754 ft) | 550 | 144 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 7.1 in | Coldest |
| February | 30°F (-1°C) | 5.2 in | |
| March | 35°F (2°C) | 4.5 in | |
| April | 48°F (9°C) | 4.1 in | |
| May | 58°F (14°C) | 4.0 in | Driest |
| June | 65°F (18°C) | 5.4 in | |
| July | 73°F (23°C) | 7.3 in | |
| August | 76°F (24°C) | 5.8 in | Warmest |
| September | 67°F (20°C) | 6.8 in | |
| October | 56°F (13°C) | 5.9 in | |
| November | 45°F (7°C) | 6.5 in | |
| December | 36°F (2°C) | 7.7 in | Wettest |
Tsugawa has a seasonal temperature swing of 46°F / from 30°F in January to 76°F in August. Total annual precipitation is 70.3 inches, with December being the wettest month (7.7") and May the driest (4.0").