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Guanshan, Taiwan

Full City Profile

8,160 Population 218/sq mi density
745 ft Elevation 227 meters
64°F Avg Temperature 18°C
Guanshan enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 54°F in January while summers reach 71°F in July. The area gets 186 sunny days per year. Annual precipitation totals 89.2 inches. The area receives 0.0 inches of snow annually.

Temperature

54°F Jan (12°C) 71°F Jul (22°C)
Annual Average63.8°F
18% above US avg
January Average54°F (12°C)
July Average71°F (22°C)
Sunny Days186 days/yr

Geography

Elevation745 ft (227 m)
Area37.4 sq mi (96.8 km²)
Population Density218/sq mi
Coordinates23.0478°N, 121.1628°W
TimezoneAsia/Taipei

Precipitation & Snow

Annual Rainfall 89.2"
135% above US avg
Snowfall 0.0"
Wettest Month (Jul) 17.72"
Driest Month (Jan) 1.89"

Air Quality

Earthquake History

2,427 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.7. Most recent: M0.0 on Aug 29, 2025.

Sep 20, 1999 21 km S of Puli, Taiwan M7.7 83 km
Apr 2, 2024 15 km S of Hualien City, Taiwan M7.4 98 km
Sep 18, 2022 90 km E of Yujing, Taiwan M6.9 21 km
Sep 5, 1996 78 km E of Hengchun, Taiwan M6.8 132 km
Mar 22, 2022 65 km S of Hualien City, Taiwan M6.7 59 km
Dec 13, 1990 28 km S of Hualien City, Taiwan M6.7 89 km
Sep 17, 2022 96 km SE of Lugu, Taiwan M6.5 27 km
Sep 25, 1999 31 km SE of Puli, Taiwan M6.5 77 km
Sep 22, 1999 33 km SE of Puli, Taiwan M6.4 76 km
Sep 20, 1999 44 km SSE of Lugu, Taiwan M6.4 43 km
Jun 10, 2000 29 km ESE of Puli, Taiwan M6.4 89 km
Dec 19, 2009 20 km S of Hualien City, Taiwan M6.4 95 km
Apr 3, 2024 15 km NNE of Hualien City, Taiwan M6.4 129 km
Feb 5, 2016 25 km SE of Yujing, Taiwan M6.4 59 km
Feb 6, 2018 18 km NNE of Hualien City, Taiwan M6.4 131 km
Dec 13, 1990 7 km SSE of Hualien City, Taiwan M6.3 108 km
Sep 20, 1999 54 km SW of Hualien City, Taiwan M6.3 60 km
Nov 1, 1999 66 km S of Hualien City, Taiwan M6.3 52 km
Oct 31, 2013 46 km SSW of Hualien City, Taiwan M6.3 67 km
Mar 4, 2010 41 km SE of Yujing, Taiwan M6.3 40 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

97 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 5.

Year Name Category Closest
2025 Podul Category 2 60 km
2025 Danas Category 2 108 km
2024 Kong-rey Category 4 15 km
2024 Krathon Category 4 93 km
2024 Gaemi Category 4 82 km
2023 Koinu Category 4 122 km
2023 Saola Category 4 298 km
2023 Haikui Category 3 38 km
2023 Doksuri Category 3 223 km
2021 Chanthu Category 5 90 km
2019 Mitag Category 2 180 km
2017 Nesat Category 2 162 km
2016 Meranti Category 5 146 km
2016 Nepartak Category 5 61 km
2016 Megi Category 4 107 km
2016 Malakas Category 4 194 km
2015 Dujuan Category 4 128 km
2015 Goni Category 3 219 km
2015 Soudelor Category 3 107 km
2015 Noul Category 3 190 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

9 tsunamis recorded within 500 km. Highest wave on record: 30.0 m (98 ft).

Year Location Cause Max Wave Deaths Distance
1781 KAOHSIUNG Unknown 30.0 m 1 107 km
2024 E. TAIWAN-RYUKYU ISLANDS Earthquake 1.0 m 20 95 km
1917 TAIWAN Earthquake 0.5 m — 48 km
1986 TAIWAN Earthquake 0.3 m 15 104 km
1951 TAIWAN Earthquake 0.3 m 68 100 km
1996 TAIWAN REGION Earthquake 0.1 m — 132 km
1978 TAIWAN Earthquake 0.1 m — 92 km
1972 E. TAIWAN Earthquake 0.1 m 1 132 km
1990 TAIWAN Earthquake 0.0 m — 89 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 54°F (12°C) 1.9 in Coldest, Driest
February 56°F (13°C) 2.6 in
March 60°F (16°C) 3.2 in
April 64°F (18°C) 4.2 in
May 68°F (20°C) 10.2 in
June 70°F (21°C) 10.0 in
July 71°F (22°C) 17.7 in Warmest, Wettest
August 70°F (21°C) 14.3 in
September 69°F (20°C) 12.8 in
October 66°F (19°C) 7.4 in
November 61°F (16°C) 2.6 in
December 56°F (14°C) 2.3 in

Guanshan has a seasonal temperature swing of 17°F / from 54°F in January to 71°F in July. Total annual precipitation is 89.2 inches, with July being the wettest month (17.7") and January the driest (1.9").

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