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Weather & Climate in Ishikari, Japan
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Ishikari experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 22°F in January while summers reach 68°F in July. The area gets 250 sunny days per year, above the national average. Annual precipitation totals 47.6 inches (wetter than the 38-inch national average). The area receives 15.4 inches of snow annually, a moderate snowfall amount.
Temperature
22°F Jan (-6°C)
68°F Jul (20°C)
| Annual Average | 45.6°F |
| 16% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 250 days/yr |
Geography
| Area | 1,449.9 sq mi (3,755.1 km²) |
| Population Density | 41/sq mi |
| Coordinates | 43.2397°N, 141.3539°W |
| Timezone | Asia/Tokyo |
Precipitation & Snow
Air Quality
Earthquake History
475 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.2.
| Jun 11, 2023 | 20 km WSW of Biratori, Japan | M6.2 | 91 km | 121 km |
| Jan 11, 2016 | 74 km NW of Rumoi, Japan | M6.2 | 139 km | 239 km |
| Oct 21, 2011 | 16 km NE of Asahikawa, Japan | M6.1 | 116 km | 187 km |
| Jan 12, 2021 | 84 km NW of Yoichi, Japan | M5.9 | 122 km | 214 km |
| Feb 19, 2003 | 26 km NNE of Rumoi, Japan | M5.9 | 107 km | 214 km |
| May 23, 1995 | Hokkaido, Japan region | M5.6 | 56 km | 17 km |
| Jul 8, 2014 | 13 km N of Shiraoi, Japan | M5.5 | 64 km | 10 km |
| Feb 28, 2009 | 37 km NW of Shizunai-furukawach?, Japan | M5.5 | 93 km | 105 km |
| Apr 18, 2007 | 21 km E of Tomakomai, Japan | M5.5 | 77 km | 120 km |
| Apr 27, 2019 | 39 km ENE of Shizunai-furukawach?, Japan | M5.4 | 148 km | 111 km |
| Feb 21, 2019 | 25 km ESE of Chitose, Japan | M5.4 | 72 km | 28 km |
| Jan 22, 2013 | 77 km SSW of Rishiri Town, Japan | M5.4 | 142 km | 235 km |
| Jun 20, 2021 | 29 km NE of Shimo-furano, Japan | M5.3 | 108 km | 152 km |
| Jul 1, 2017 | 22 km E of Chitose, Japan | M5.3 | 66 km | 37 km |
| Jun 16, 2016 | 22 km ENE of Honch?, Japan | M5.2 | 144 km | 14 km |
| Jan 27, 2021 | 27 km ESE of Chitose, Japan | M5.2 | 77 km | 116 km |
| Nov 10, 1990 | 23 km W of Nayoro, Japan | M5.1 | 141 km | 16 km |
| Jul 5, 2024 | 10 km WNW of Nayoro, Japan | M5.1 | 148 km | 232 km |
| Mar 16, 1995 | 15 km SE of Shizunai-furukawach?, Japan | M5.1 | 146 km | 21 km |
| Feb 21, 1990 | 27 km SSW of Nayoro, Japan | M5.1 | 125 km | 33 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
5 tsunamis recorded within 500 km. Highest wave on record: 8.0 m (26 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1640 | SE. HOKKAIDO ISLAND | Explosion | 8.0 m | 700 | 141 km |
| 1947 | W. HOKKAIDO ISLAND | Earthquake | 2.0 m | — | 69 km |
| 1982 | HOKKAIDO ISLAND | Earthquake | 1.3 m | 110 | 146 km |
| 1834 | W. HOKKAIDO ISLAND | Earthquake | — | — | 8 km |
| 1792 | W. HOKKAIDO ISLAND | Earthquake | — | — | 68 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
10 volcanoes within 200 km. Closest: Shikotsu (61 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Shikotsu | Caldera | 1,320 m (4,331 ft) | 1979 | 61 km |
| Yoteizan | Stratovolcano | 1,888 m (6,194 ft) | -1050 | 64 km |
| Niseko | Stratovolcano(es) | 1,308 m (4,291 ft) | -4900 | 70 km |
| Kuttara | Stratovolcano(es) | 549 m (1,801 ft) | 1820 | 85 km |
| Toya | Stratovolcano | 733 m (2,405 ft) | 2001 | 88 km |
| Tokachidake | Stratovolcano(es) | 2,077 m (6,814 ft) | 2004 | 110 km |
| Taisetsuzan | Stratovolcano(es) | 2,291 m (7,516 ft) | 1739 | 130 km |
| Maruyama | Stratovolcano(es) | 2,013 m (6,604 ft) | 1898 | 137 km |
| Hokkaido-Komagatake | Stratovolcano | 1,131 m (3,711 ft) | 2000 | 142 km |
| Esan | Lava dome(s) | 618 m (2,028 ft) | 1874 | 160 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-6°C) | 4.5 in | Coldest |
| February | 23°F (-5°C) | 3.4 in | |
| March | 30°F (-1°C) | 2.6 in | |
| April | 42°F (6°C) | 2.5 in | Driest |
| May | 52°F (11°C) | 2.6 in | |
| June | 60°F (15°C) | 2.7 in | |
| July | 68°F (20°C) | 3.8 in | |
| August | 70°F (21°C) | 5.7 in | Warmest, Wettest |
| September | 63°F (17°C) | 5.3 in | |
| October | 51°F (11°C) | 4.7 in | |
| November | 39°F (4°C) | 5.0 in | |
| December | 28°F (-2°C) | 5.0 in |
Ishikari has a seasonal temperature swing of 48°F / from 22°F in January to 70°F in August. Total annual precipitation is 47.7 inches, with August being the wettest month (5.7") and April the driest (2.5").