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Weather & Climate in Sunagawa, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sunagawa has a cool climate with an average annual temperature of 44°F (7°C). Winters average 20°F in January while summers reach 67°F in July. The area gets 255 sunny days per year, above the national average. Annual precipitation totals 44.5 inches. The area receives 12.4 inches of snow annually. The city sits at an elevation of 108 feet.
Temperature
20°F Jan (-7°C)
67°F Jul (20°C)
| Annual Average | 44.0°F |
| 19% below US avg | |
| January Average | 20°F (-7°C) |
| July Average | 67°F (20°C) |
| Sunny Days | 255 days/yr |
Geography
| Elevation | 108 ft (33 m) |
| Area | 33.4 sq mi (86.5 km²) |
| Population Density | 602/sq mi |
| Coordinates | 43.4864°N, 141.9056°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
507 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 | 146 km | 102 km |
| Feb 2, 2013 | 18 km SSW of Obihiro, Japan | M6.9 | 125 km | 107 km |
| Jan 11, 2016 | 74 km NW of Rumoi, Japan | M6.2 | 128 km | 239 km |
| Jun 11, 2023 | 20 km WSW of Biratori, Japan | M6.2 | 107 km | 121 km |
| Oct 21, 2011 | 16 km NE of Asahikawa, Japan | M6.1 | 65 km | 187 km |
| Aug 25, 2012 | 45 km ENE of Shizunai-furukawach?, Japan | M5.9 | 144 km | 55 km |
| Feb 19, 2003 | 26 km NNE of Rumoi, Japan | M5.9 | 74 km | 214 km |
| Jun 10, 2004 | 49 km E of Shizunai-furukawach?, Japan | M5.8 | 149 km | 50 km |
| Jun 12, 1991 | 17 km SE of Obihiro, Japan | M5.8 | 139 km | 109 km |
| May 23, 1995 | Hokkaido, Japan region | M5.6 | 23 km | 17 km |
| Jul 8, 2014 | 13 km N of Shiraoi, Japan | M5.5 | 102 km | 10 km |
| Feb 28, 2009 | 37 km NW of Shizunai-furukawach?, Japan | M5.5 | 99 km | 105 km |
| Apr 18, 2007 | 21 km E of Tomakomai, Japan | M5.5 | 92 km | 120 km |
| Apr 27, 2019 | 39 km ENE of Shizunai-furukawach?, Japan | M5.4 | 137 km | 111 km |
| Feb 21, 2019 | 25 km ESE of Chitose, Japan | M5.4 | 81 km | 28 km |
| Jan 22, 2013 | 77 km SSW of Rishiri Town, Japan | M5.4 | 134 km | 235 km |
| Jul 1, 2017 | 22 km E of Chitose, Japan | M5.3 | 75 km | 37 km |
| Jun 20, 2021 | 29 km NE of Shimo-furano, Japan | M5.3 | 58 km | 152 km |
| Aug 15, 1990 | 43 km ESE of Kamikawa, Japan | M5.3 | 116 km | 162 km |
| Dec 9, 1998 | 50 km ENE of Shizunai-furukawach?, Japan | M5.3 | 145 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
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 | — | 81 km |
| 1863 | NW. HOKKAIDO ISLAND | Earthquake | — | — | 128 km |
| 1834 | W. HOKKAIDO ISLAND | Earthquake | — | — | 46 km |
| 1792 | W. HOKKAIDO ISLAND | Earthquake | — | — | 105 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
11 volcanoes within 200 km. Closest: Tokachidake (64 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Tokachidake | Stratovolcano(es) | 2,077 m (6,814 ft) | 2004 | 64 km |
| Taisetsuzan | Stratovolcano(es) | 2,291 m (7,516 ft) | 1739 | 79 km |
| Maruyama | Stratovolcano(es) | 2,013 m (6,604 ft) | 1898 | 91 km |
| Shikotsu | Caldera | 1,320 m (4,331 ft) | 1979 | 99 km |
| Yoteizan | Stratovolcano | 1,888 m (6,194 ft) | -1050 | 115 km |
| Niseko | Stratovolcano(es) | 1,308 m (4,291 ft) | -4900 | 122 km |
| Kuttara | Stratovolcano(es) | 549 m (1,801 ft) | 1820 | 126 km |
| Toya | Stratovolcano | 733 m (2,405 ft) | 2001 | 136 km |
| Akan | Caldera | 1,499 m (4,918 ft) | 2008 | 171 km |
| Hokkaido-Komagatake | Stratovolcano | 1,131 m (3,711 ft) | 2000 | 187 km |
| Esan | Lava dome(s) | 618 m (2,028 ft) | 1874 | 197 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 20°F (-7°C) | 3.5 in | Coldest |
| February | 21°F (-6°C) | 2.6 in | |
| March | 28°F (-2°C) | 2.2 in | Driest |
| April | 41°F (5°C) | 2.4 in | |
| May | 51°F (11°C) | 2.7 in | |
| June | 59°F (15°C) | 2.9 in | |
| July | 67°F (20°C) | 4.0 in | |
| August | 69°F (20°C) | 5.7 in | Warmest, Wettest |
| September | 61°F (16°C) | 5.4 in | |
| October | 49°F (10°C) | 4.5 in | |
| November | 37°F (3°C) | 4.5 in | |
| December | 26°F (-3°C) | 4.3 in |
Sunagawa has a seasonal temperature swing of 49°F / from 20°F in January to 69°F in August. Total annual precipitation is 44.5 inches, with August being the wettest month (5.7") and March the driest (2.2").