Dayin, China

Full City Profile

3 ft Elevation 1 meters

64°F Avg Temperature 18°C

Dayin enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 43°F in January while summers reach 83°F in July. The area gets 240 sunny days per year. Annual precipitation totals 56.0 inches. The area receives 1.0 inches of snow annually.

Temperature

43°F Jan (6°C) 83°F Jul (29°C)

Annual Average	63.6°F
	18% above US avg
January Average	43°F (6°C)
July Average	83°F (29°C)
Sunny Days	240 days/yr

Geography

Elevation	3 ft (1 m)
Area	11.8 sq mi (30.7 km²)
Population Density	0/sq mi
Coordinates	29.9401°N, 121.3711°W
Timezone	Asia/Shanghai

Precipitation & Snow

Annual Rainfall 56.0"

47% above US avg

Snowfall 1.0"

Air Quality

Earthquake History

1 earthquake (M2.5+) within 150 km since 1990. Strongest: M4.0. Most recent: M4.0 on May 25, 2004.

May 25, 2004	12 km NE of Shenjiamen, China	M4.0	99 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

27 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 3. Most recent: Bebinca (2024).

Year	Name	Category	Closest
2024	Bebinca	Category 1	114 km
2022	Muifa	Category 2	87 km
2021	Chanthu	Category 2	205 km
2020	Hagupit	Category 1	251 km
2019	Lekima	Category 3	89 km
2019	Mitag	Category 1	169 km
2015	Chan-hom	Category 3	111 km
2012	Haikui	Category 1	147 km
2007	Wipha	Category 2	288 km
2005	Khanun	Category 3	74 km
2005	Matsa	Category 1	217 km
2004	Rananim	Category 2	194 km
2002	Rammasun	Category 3	263 km
2000	Prapiroon	Category 1	167 km
2000	Jelawat	Category 1	82 km
1997	Winnie	Category 1	140 km
1994	Seth	Category 2	230 km
1994	Fred	Category 2	250 km
1994	Doug	Category 2	171 km
1990	Abe	Category 2	67 km

Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 3.0 m (10 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1991	AOSHAN	Meteorological	3.0 m	—	74 km

Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

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