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Siay, Philippines

Full City Profile

2,351 Population 19/sq mi density
20 ft Elevation 6 meters
81°F Avg Temperature 27°C
Siay has a warm climate with an average annual temperature of 81°F (27°C). Winters average 80°F in January while summers reach 80°F in July. The area gets 157 sunny days per year. Annual precipitation totals 100.0 inches. The area receives 0.0 inches of snow annually.

Temperature

80°F Jan (27°C) 80°F Jul (27°C)
Annual Average80.6°F
49% above US avg
January Average80°F (27°C)
July Average80°F (27°C)
Sunny Days157 days/yr

Geography

Elevation20 ft (6 m)
Area121.1 sq mi (313.6 km²)
Population Density19/sq mi
Coordinates7.6961°N, 122.8631°W
TimezoneAsia/Manila

Precipitation & Snow

Annual Rainfall 100.0"
163% above US avg
Snowfall 0.0"
Wettest Month (Jun) 13.74"
Driest Month (Feb) 2.60"

Air Quality

Earthquake History

264 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.6. Most recent: M4.8 on May 18, 2025.

Jul 23, 2010 61 km W of Bantogon, Philippines M7.6 150 km
Jul 23, 2010 72 km S of Panubigan, Philippines M7.5 111 km
Jul 23, 2010 68 km W of Gadung, Philippines M7.3 124 km
May 26, 2003 34 km W of Gadung, Philippines M6.9 140 km
Jul 29, 2010 89 km W of Bantogon, Philippines M6.6 134 km
Oct 4, 2009 71 km W of Gadung, Philippines M6.6 121 km
May 23, 1998 6 km WNW of Tabid, Philippines M6.0 107 km
Apr 13, 2016 15 km NW of Siocon, Philippines M6.0 93 km
May 10, 2018 29 km WNW of Gadung, Philippines M5.9 135 km
May 26, 2003 15 km W of Gadung, Philippines M5.9 149 km
May 13, 1994 6 km SW of Balagon, Philippines M5.9 47 km
Aug 13, 2022 Moro Gulf, Mindanao, Philippines M5.8 135 km
Oct 16, 1993 2 km NE of Malim, Philippines M5.8 69 km
Jul 23, 2010 29 km W of Litayan, Philippines M5.8 108 km
Jul 23, 2010 66 km W of Bantogon, Philippines M5.8 143 km
Feb 23, 1991 44 km WNW of Kalawit, Philippines M5.7 96 km
Jun 14, 2002 5 km W of Malabang, Philippines M5.6 128 km
Oct 4, 2009 55 km WSW of Gadung, Philippines M5.6 135 km
Oct 18, 1991 12 km N of Siocon, Philippines M5.6 82 km
Dec 2, 1997 51 km W of Gadung, Philippines M5.5 130 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

3 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4.

Year Name Category Closest
2021 Rai Category 4 270 km
2012 Bopha Category 3 153 km
1984 Ike Category 4 279 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

1 tsunami recorded within 500 km. Highest wave on record: 0.0 m (0 ft).

Year Location Cause Max Wave Deaths Distance
1978 MINDANAO ISLAND, PHILIPPINES Earthquake 0.0 m 80 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

1 volcano within 200 km. Closest: Cuernos de Negros (176 km).

Name Type Elevation Last Eruption Distance
Cuernos de Negros Complex 1,862 m (6,109 ft) Unknown 176 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 80°F (27°C) 2.7 in
February 80°F (27°C) 2.6 in Coldest, Driest
March 81°F (27°C) 3.6 in
April 82°F (28°C) 5.0 in
May 82°F (28°C) 9.2 in Warmest
June 81°F (27°C) 13.7 in Wettest
July 80°F (27°C) 13.2 in
August 80°F (27°C) 12.0 in
September 80°F (27°C) 12.2 in
October 81°F (27°C) 11.9 in
November 81°F (27°C) 9.7 in
December 80°F (27°C) 4.3 in

Siay has a seasonal temperature swing of 2°F / from 80°F in February to 82°F in May. Total annual precipitation is 100.0 inches, with June being the wettest month (13.7") and February the driest (2.6").

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