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San Antonio, Costa Rica
Full City Profile
10,938
Population
7,984/sq mi density
2,953 ft
Elevation
900 meters
65°F
Avg Temperature
19°C
San Antonio enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 63°F in January while summers reach 67°F in July. The area gets 311 sunny days per year. Annual precipitation totals 160.2 inches. The area receives 0.0 inches of snow annually.
Temperature
63°F Jan (17°C)
67°F Jul (19°C)
| Annual Average | 65.4°F |
| 21% above US avg | |
| January Average | 63°F (17°C) |
| July Average | 67°F (19°C) |
| Sunny Days | 311 days/yr |
Geography
| Elevation | 2,953 ft (900 m) |
| Area | 1.4 sq mi (3.5 km²) |
| Population Density | 7,984/sq mi |
| Coordinates | 9.9816°N, 84.1859°W |
| Timezone | America/Costa_Rica |
Precipitation & Snow
Air Quality
Tsunami History
11 tsunamis recorded within 500 km. Highest wave on record: 3.0 m (10 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1991 | LIMON, PANDORA | Earthquake | 3.0 m | 90 | 126 km |
| 1950 | COSTA RICA-NICARAGUA | Earthquake | 2.0 m | — | 144 km |
| 1990 | COSTA RICA | Earthquake | 1.0 m | — | 63 km |
| 2012 | COSTA RICA | Earthquake | 0.2 m | 2 | 124 km |
| 1952 | COSTA RICA-PANAMA | Earthquake | 0.1 m | — | 113 km |
| 2019 | IRAZU VOLCANO | Explosion | — | — | 37 km |
| 1924 | COSTA RICA | Earthquake | — | — | 57 km |
| 1905 | GULF OF NICOYA | Earthquake | — | — | 56 km |
| 1822 | MATINA | Earthquake | — | — | 141 km |
| 1798 | MATINA | Earthquake | — | — | 143 km |
| 1746 | MATINA | Earthquake | — | — | 143 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
10 volcanoes within 200 km. Closest: Barva (20 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Barva | Complex | 2,906 m (9,534 ft) | -6050 | 20 km |
| Poas | Stratovolcano | 2,708 m (8,885 ft) | 2019 | 25 km |
| Irazu | Stratovolcano | 3,432 m (11,260 ft) | 1994 | 37 km |
| Platanar | Stratovolcano(es) | 2,267 m (7,438 ft) | Unknown | 41 km |
| Turrialba | Stratovolcano | 3,340 m (10,958 ft) | 2019 | 46 km |
| Arenal | Stratovolcano | 1,670 m (5,479 ft) | 2010 | 78 km |
| Tenorio | Stratovolcano(es) | 1,916 m (6,286 ft) | Unknown | 119 km |
| Miravalles | Stratovolcano | 2,028 m (6,654 ft) | 1946 | 136 km |
| Rincon de la Vieja | Complex | 1,916 m (6,286 ft) | 2020 | 156 km |
| Orosi | Stratovolcano(es) | 1,659 m (5,443 ft) | Unknown | 179 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 63°F (17°C) | 0.8 in | Coldest, Driest |
| February | 71°F (22°C) | 1.0 in | |
| March | 73°F (23°C) | 1.3 in | |
| April | 74°F (23°C) | 4.1 in | Warmest |
| May | 73°F (23°C) | 11.9 in | |
| June | 72°F (22°C) | 12.8 in | |
| July | 67°F (19°C) | 10.0 in | |
| August | 71°F (22°C) | 12.9 in | |
| September | 71°F (22°C) | 15.1 in | Wettest |
| October | 70°F (21°C) | 14.7 in | |
| November | 70°F (21°C) | 7.4 in | |
| December | 70°F (21°C) | 2.2 in |
San Antonio has a seasonal temperature swing of 11°F / from 63°F in January to 74°F in April. Total annual precipitation is 94.0 inches, with September being the wettest month (15.1") and January the driest (0.8").