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Union, Philippines

Full City Profile

2,285 Population 61/sq mi density
72 ft Elevation 22 meters
79°F Avg Temperature 26°C
Union has a warm climate with an average annual temperature of 79°F (26°C). Winters average 77°F in January while summers reach 79°F in July. The area gets 131 sunny days per year. Annual precipitation totals 152.1 inches. The area receives 0.0 inches of snow annually.

Temperature

77°F Jan (25°C) 79°F Jul (26°C)
Annual Average79.3°F
47% above US avg
January Average77°F (25°C)
July Average79°F (26°C)
Sunny Days131 days/yr

Geography

Elevation72 ft (22 m)
Area37.5 sq mi (97.0 km²)
Population Density61/sq mi
Coordinates11.7612°N, 121.8963°W
TimezoneAsia/Manila

Precipitation & Snow

Annual Rainfall 152.1"
300% above US avg
Snowfall 0.0"
Wettest Month (Jul) 27.01"
Driest Month (Mar) 2.40"

Air Quality

Earthquake History

126 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.1. Most recent: M4.3 on Jun 24, 2025.

Jun 14, 1990 0 km ESE of Union, Philippines M7.1 0 km
Sep 1, 2003 30 km SE of Tugdan, Philippines M5.8 63 km
May 4, 2019 8 km SW of San Agustin, Philippines M5.7 125 km
Jul 7, 1990 41 km SW of Adela, Philippines M5.7 144 km
Sep 29, 2000 34 km SW of Taclobo, Philippines M5.6 63 km
Jun 14, 1990 19 km SSW of Union, Philippines M5.6 20 km
Mar 27, 2006 0 km NNE of Semirara, Philippines M5.6 64 km
Jul 23, 1990 7 km W of Da-an Sur, Philippines M5.6 74 km
Jun 14, 1990 8 km SSW of Manika, Philippines M5.5 63 km
Aug 15, 2016 21 km SE of Bugasong, Philippines M5.4 101 km
May 21, 1992 2 km NNW of Ponong, Philippines M5.4 108 km
Dec 20, 1994 10 km SSW of Malamig, Philippines M5.3 137 km
Jun 5, 2020 9 km NE of Banos, Philippines M5.3 147 km
Feb 27, 2000 6 km SSW of Hamtic, Philippines M5.2 124 km
Nov 24, 1994 0 km E of Malamig, Philippines M5.1 144 km
May 27, 1990 Mindoro, Philippines M5.1 148 km
Sep 1, 2003 21 km ESE of Alcantara, Philippines M5.1 58 km
Feb 8, 2021 48 km SW of Santa Teresa, Philippines M5.0 124 km
Jun 6, 1991 47 km WSW of Adela, Philippines M5.0 149 km
Sep 1, 2003 20 km ESE of Santa Fe, Philippines M5.0 46 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year Name Category Closest
2025 Kalmaegi Category 1 152 km
2021 Rai Category 4 186 km
2021 Conson Category 1 195 km
2020 Goni Category 5 218 km
2020 Molave Category 2 160 km
2020 Vongfong Category 2 182 km
2019 Kammuri Category 4 153 km
2019 Phanfone Category 3 29 km
2016 Nock-ten Category 4 184 km
2015 Melor Category 4 131 km
2014 Rammasun Category 4 233 km
2014 Hagupit Category 2 182 km
2013 Haiyan Category 5 47 km
2012 Bopha Category 2 243 km
2008 Fengshen Category 3 71 km
2006 Durian Category 4 194 km
2006 Xangsane Category 4 222 km
2006 Utor Category 3 44 km
2006 Chanchu Category 2 134 km
2005 Roke Category 1 229 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

2 tsunamis recorded within 500 km.

Year Location Cause Max Wave Deaths Distance
1948 SULU SEA Earthquake 74 122 km
1928 SULU SEA Earthquake 130 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

2 volcanoes within 200 km. Closest: Silay (183 km).

Name Type Elevation Last Eruption Distance
Silay Stratovolcano 1,510 m (4,954 ft) Unknown 183 km
Mandalagan Complex 1,885 m (6,184 ft) Unknown 193 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 77°F (25°C) 6.9 in Coldest
February 78°F (25°C) 3.4 in
March 79°F (26°C) 2.4 in Driest
April 81°F (27°C) 2.8 in
May 82°F (28°C) 11.2 in Warmest
June 80°F (27°C) 14.8 in
July 79°F (26°C) 27.0 in Wettest
August 79°F (26°C) 22.7 in
September 79°F (26°C) 18.7 in
October 79°F (26°C) 17.1 in
November 79°F (26°C) 15.2 in
December 78°F (26°C) 10.2 in

Union has a seasonal temperature swing of 5°F / from 77°F in January to 82°F in May. Total annual precipitation is 152.1 inches, with July being the wettest month (27.0") and March the driest (2.4").

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