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Weather & Climate in San Juan, Panama
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Juan has a warm climate with an average annual temperature of 78°F (26°C). Winters average 72°F in January while summers reach 78°F in July / relatively mild seasonal variation. The area gets 303 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 94.2 inches (wetter than the 38-inch national average). The city sits at an elevation of 95 feet.
Temperature
72°F Jan (22°C)
78°F Jul (26°C)
| Annual Average | 77.9°F |
| 44% above US avg | |
| January Average | 72°F (22°C) |
| July Average | 78°F (26°C) |
| Sunny Days | 303 days/yr |
Geography
| Elevation | 95 ft (29 m) |
| Area | 250.1 sq mi (647.8 km²) |
| Population Density | 0/sq mi |
| Coordinates | 8.2796°N, 81.9954°W |
| Timezone | America/Panama |
Precipitation & Snow
Air Quality
Earthquake History
656 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.7.
| Jul 21, 2021 | 71 km S of Burica, Panama | M6.7 | 131 km | 10 km |
| Jul 31, 2002 | 14 km SE of Punta de Burica, Panama | M6.5 | 96 km | 10 km |
| May 13, 2014 | 110 km SE of Punta de Burica, Panama | M6.5 | 124 km | 10 km |
| May 18, 1992 | 86 km S of Boca Chica, Panama | M6.3 | 99 km | 18 km |
| Apr 4, 2023 | 73 km S of Boca Chica, Panama | M6.3 | 88 km | 16 km |
| May 4, 1991 | 16 km NE of Changuinola, Panama | M6.2 | 148 km | 10 km |
| Apr 11, 2003 | 124 km SSE of Punta de Burica, Panama | M6.2 | 144 km | 10 km |
| Jun 26, 2019 | 4 km SE of Aserrío de Gariché, Panama | M6.2 | 86 km | 33 km |
| Aug 25, 2001 | 45 km SSE of Punta de Burica, Panama | M6.1 | 111 km | 25 km |
| Feb 4, 2004 | 2 km S of Finca Blanco, Panama | M6.1 | 97 km | 29 km |
| Apr 1, 1997 | 53 km SSW of Boca Chica, Panama | M6.1 | 72 km | 33 km |
| Apr 2, 2014 | 33 km SSW of Boca Chica, Panama | M6.0 | 54 km | 25 km |
| Feb 28, 1995 | south of Panama | M6.0 | 146 km | 21 km |
| Aug 7, 2002 | 20 km S of Punta de Burica, Panama | M6.0 | 110 km | 10 km |
| May 12, 2019 | 1 km W of Breñón, Panama | M6.0 | 100 km | 19 km |
| May 1, 2006 | 7 km NNW of Limones, Panama | M5.9 | 98 km | 13 km |
| Mar 11, 2009 | 15 km SW of Golfito, Costa Rica | M5.9 | 137 km | 14 km |
| Mar 11, 2009 | 15 km SW of Golfito, Costa Rica | M5.9 | 135 km | 17 km |
| Nov 17, 1998 | 41 km SSE of Punta de Burica, Panama | M5.9 | 110 km | 17 km |
| Jun 30, 2005 | 3 km W of Progreso, Panama | M5.9 | 98 km | 38 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
6 tsunamis recorded within 500 km. Highest wave on record: 1.3 m (4 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1916 | BOCAS DEL TORO | Earthquake | 1.3 m | — | 147 km |
| 1934 | COSTA RICA-PANAMA | Earthquake | 0.3 m | — | 64 km |
| 1941 | COSTA RICA-PANAMA | Earthquake | 0.2 m | 6 | 141 km |
| 1983 | COSTA RICA | Earthquake | 0.1 m | 6 | 129 km |
| 1962 | COSTA RICA-PANAMA | Earthquake | 0.1 m | — | 89 km |
| 1854 | COSTA RICA-PANAMA | Eruption + Earthquake | — | — | 113 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 72°F (22°C) | 1.3 in | Coldest, Driest |
| February | 78°F (26°C) | 1.3 in | |
| March | 80°F (27°C) | 1.9 in | |
| April | 80°F (27°C) | 5.4 in | Warmest |
| May | 79°F (26°C) | 13.5 in | |
| June | 78°F (26°C) | 13.0 in | |
| July | 78°F (26°C) | 12.2 in | |
| August | 78°F (25°C) | 14.7 in | |
| September | 77°F (25°C) | 15.3 in | |
| October | 77°F (25°C) | 20.3 in | Wettest |
| November | 77°F (25°C) | 14.5 in | |
| December | 77°F (25°C) | 4.8 in |
San Juan has a seasonal temperature swing of 8°F / from 72°F in January to 80°F in April. Total annual precipitation is 118.2 inches, with October being the wettest month (20.3") and January the driest (1.3").