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Weather & Climate in Unión Santeña, Panama

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Unión Santeña has a warm climate with an average annual temperature of 77°F (25°C). Winters average 76°F in January while summers reach 77°F in July / relatively mild seasonal variation. The area gets 162 sunny days per year, below the national average of 205. Annual precipitation totals 97.3 inches (wetter than the 38-inch national average). The city sits at an elevation of 105 feet.

Temperature

76°F Jan (24°C) 77°F Jul (25°C)
Annual Average76.7°F
42% above US avg
January Average76°F (24°C)
July Average77°F (25°C)
Sunny Days162 days/yr

Geography

Elevation105 ft (32 m)
Area237.6 sq mi (615.3 km²)
Population Density2/sq mi
Coordinates8.8350°N, 78.6489°W
TimezoneAmerica/Panama

Precipitation & Snow

Annual Rainfall 97.3"
156% above US avg
Snowfall 0.0"
Wettest Month (Oct) 14.02"
Driest Month (Mar) 0.94"

Air Quality

Earthquake History

171 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.1.

Feb 26, 2000 7 km SE of Narganá, Panama M6.1 65 km 65 km
Jul 4, 2009 4 km NNW of El Porvenir, Panama M6.1 91 km 38 km
Jun 7, 2002 22 km WNW of Puerto Obaldía, Panama M5.6 114 km 86 km
Aug 29, 2023 56 km NNE of Narganá, Panama M5.5 124 km 34 km
Jul 6, 2009 4 km NW of El Porvenir, Panama M5.3 91 km 61 km
Mar 16, 2002 11 km NNW of Pásiga, Panama M5.3 40 km 33 km
May 1, 2021 17 km NNE of Santa Isabel, Panama M5.1 110 km 44 km
Feb 18, 2018 73 km W of Jaqué, Panama M5.1 141 km 10 km
Mar 3, 2022 61 km N of Narganá, Panama M5.0 130 km 35 km
May 3, 2023 9 km SSE of Narganá, Panama M5.0 61 km 79 km
Nov 11, 1990 43 km NNE of Narganá, Panama M4.8 111 km 33 km
May 4, 2017 15 km NW of Playón Chico, Panama M4.8 71 km 74 km
Sep 24, 1991 12 km E of Narganá, Panama M4.7 69 km 79 km
Sep 9, 1993 34 km NE of Narganá, Panama M4.7 95 km 62 km
Apr 9, 1994 15 km SE of Narganá, Panama M4.7 58 km 66 km
Sep 7, 2015 20 km NE of Metetí, Panama M4.7 94 km 14 km
Oct 10, 1996 3 km WNW of Corozal, Panama M4.7 132 km 33 km
Nov 6, 1999 27 km N of Narganá, Panama M4.7 95 km 48 km
Feb 20, 2017 35 km W of La Guinea, Panama M4.7 89 km 16 km
Aug 22, 2004 10 km SSE of Narganá, Panama M4.7 58 km 74 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 3.

Year Name Category Max Wind Closest
1988 Joan:miriam Category 3 127 mph 269 km
Source: NOAA IBTrACS (Category 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
1882 SAN BLAS ARCHIPELAGO Eruption + Earthquake 3.0 m 100 135 km
Source: NOAA/NCEI Historical Tsunami Database.

Nearby Volcanoes

1 volcano within 200 km. Closest: Valle, El (170 km).

Name Type Elevation Last Eruption Distance
Valle, El Stratovolcano 1,185 m (3,888 ft) Unknown 170 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 76°F (24°C) 3.1 in
February 77°F (25°C) 1.6 in
March 78°F (25°C) 0.9 in Driest
April 78°F (26°C) 3.9 in Warmest
May 78°F (25°C) 11.0 in
June 77°F (25°C) 11.0 in
July 77°F (25°C) 10.4 in
August 77°F (25°C) 10.1 in
September 76°F (25°C) 11.5 in
October 76°F (24°C) 14.0 in Wettest
November 76°F (24°C) 12.8 in
December 76°F (24°C) 7.0 in Coldest

Unión Santeña has a seasonal temperature swing of 3°F / from 76°F in December to 78°F in April. Total annual precipitation is 97.3 inches, with October being the wettest month (14.0") and March the driest (0.9").

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