Sign In Register

San Juan, Argentina

Full City Profile

109,123 Population 9,423/sq mi density
2,119 ft Elevation 646 meters
67°F Avg Temperature 20°C
San Juan enjoys a temperate climate with an average annual temperature of 67°F (19°C). Winters average 83°F in January while summers reach 49°F in July. The area gets 361 sunny days per year. Annual precipitation totals 2.1 inches. The area receives 0.0 inches of snow annually.

Temperature

83°F Jan (28°C) 49°F Jul (9°C)
Annual Average67.4°F
25% above US avg
January Average83°F (28°C)
July Average49°F (9°C)
Sunny Days361 days/yr

Geography

Elevation2,119 ft (646 m)
Area11.6 sq mi (30.0 km²)
Population Density9,423/sq mi
Coordinates-31.5373°N, 68.5257°W
TimezoneAmerica/Argentina/San_Juan

Precipitation & Snow

Annual Rainfall 2.1"
94% below US avg
Snowfall 0.0"
Wettest Month (Jan) 2.20"
Driest Month (Jun) 0.12"

Air Quality

Earthquake History

2,853 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.4. Most recent: M4.1 on Aug 29, 2025.

Jan 19, 2021 26 km SW of Pocito, Argentina M6.4 42 km
Jun 8, 1993 30 km SE of Calingasta, Argentina M6.3 67 km
Sep 24, 2002 29 km SE of Calingasta, Argentina M6.3 64 km
Feb 27, 2010 40 km WSW of Villa Basilio Nievas, Argentina M6.0 60 km
Jun 7, 1998 45 km ENE of Caucete, Argentina M5.9 66 km
Sep 15, 1991 52 km WSW of Calingasta, Argentina M5.9 134 km
Oct 30, 1993 7 km SE of Caucete, Argentina M5.8 33 km
Sep 4, 1990 34 km ENE of Calingasta, Argentina M5.7 60 km
May 27, 2003 10 km NW of Albardón, Argentina M5.7 20 km
May 18, 2003 31 km ESE of Calingasta, Argentina M5.5 56 km
Jul 30, 1992 87 km ENE of Caucete, Argentina M5.5 108 km
Nov 27, 1998 86 km SW of Villa Basilio Nievas, Argentina M5.5 101 km
Jul 2, 2002 63 km SSW of San Agustín de Valle Fértil, Argentina M5.5 85 km
May 20, 2019 57 km WSW of Calingasta, Argentina M5.5 140 km
Dec 11, 1998 36 km NNW of Villa Basilio Nievas, Argentina M5.4 48 km
Feb 27, 1991 2 km NNW of San José de Jáchal, Argentina M5.4 148 km
Dec 29, 1992 92 km E of Caucete, Argentina M5.4 117 km
Feb 21, 2002 87 km E of Caucete, Argentina M5.4 112 km
Jan 18, 2010 11 km NW of Albardón, Argentina M5.4 21 km
Dec 1, 1991 81 km S of Calingasta, Argentina M5.4 110 km
Source: USGS (M2.5+, 1990–2025)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 83°F (28°C) 2.2 in Warmest, Wettest
February 76°F (24°C) 1.9 in
March 71°F (22°C) 1.4 in
April 63°F (17°C) 0.6 in
May 55°F (13°C) 0.3 in
June 48°F (9°C) 0.1 in Coldest, Driest
July 49°F (9°C) 0.2 in
August 52°F (11°C) 0.2 in
September 58°F (14°C) 0.3 in
October 66°F (19°C) 0.6 in
November 72°F (22°C) 1.1 in
December 77°F (25°C) 1.5 in

San Juan has a seasonal temperature swing of 36°F / from 48°F in June to 83°F in January. Total annual precipitation is 10.2 inches, with January being the wettest month (2.2") and June the driest (0.1").

View full weather details →