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San Isidro, Costa Rica
Full City Profile
34,877
Population
471/sq mi density
2,339 ft
Elevation
713 meters
69°F
Avg Temperature
21°C
San Isidro enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 68°F in January while summers reach 69°F in July. The area gets 144 sunny days per year. Annual precipitation totals 118.6 inches. The area receives 0.0 inches of snow annually.
Temperature
68°F Jan (20°C)
69°F Jul (21°C)
| Annual Average | 69.0°F |
| 28% above US avg | |
| January Average | 68°F (20°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 144 days/yr |
Geography
| Elevation | 2,339 ft (713 m) |
| Area | 74.1 sq mi (191.8 km²) |
| Population Density | 471/sq mi |
| Coordinates | 9.3674°N, 83.6971°W |
| Timezone | America/Costa_Rica |
Precipitation & Snow
Air Quality
Tsunami History
12 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 | 77 km |
| 1990 | COSTA RICA | Earthquake | 1.0 m | — | 130 km |
| 1941 | COSTA RICA-PANAMA | Earthquake | 0.2 m | 6 | 92 km |
| 1983 | COSTA RICA | Earthquake | 0.1 m | 6 | 101 km |
| 1941 | COSTA RICA-PANAMA | Earthquake | 0.1 m | — | 102 km |
| 2019 | IRAZU VOLCANO | Explosion | — | — | 70 km |
| 1924 | COSTA RICA | Earthquake | — | — | 93 km |
| 1905 | GULF OF NICOYA | Earthquake | — | — | 120 km |
| 1854 | COSTA RICA-PANAMA | Eruption + Earthquake | — | — | 123 km |
| 1822 | MATINA | Earthquake | — | — | 78 km |
| 1798 | MATINA | Earthquake | — | — | 127 km |
| 1746 | MATINA | Earthquake | — | — | 127 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
6 volcanoes within 200 km. Closest: Irazu (70 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Irazu | Stratovolcano | 3,432 m (11,260 ft) | 1994 | 70 km |
| Turrialba | Stratovolcano | 3,340 m (10,958 ft) | 2019 | 74 km |
| Barva | Complex | 2,906 m (9,534 ft) | -6050 | 96 km |
| Poas | Stratovolcano | 2,708 m (8,885 ft) | 2019 | 110 km |
| Platanar | Stratovolcano(es) | 2,267 m (7,438 ft) | Unknown | 127 km |
| Arenal | Stratovolcano | 1,670 m (5,479 ft) | 2010 | 164 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 68°F (20°C) | 2.9 in | |
| February | 69°F (20°C) | 1.6 in | Driest |
| March | 70°F (21°C) | 2.4 in | |
| April | 71°F (22°C) | 6.3 in | Warmest |
| May | 70°F (21°C) | 13.9 in | |
| June | 69°F (21°C) | 13.6 in | |
| July | 69°F (21°C) | 11.1 in | |
| August | 69°F (21°C) | 13.4 in | |
| September | 69°F (20°C) | 15.9 in | |
| October | 68°F (20°C) | 19.2 in | Wettest |
| November | 68°F (20°C) | 12.6 in | |
| December | 68°F (20°C) | 5.8 in | Coldest |
San Isidro has a seasonal temperature swing of 3°F / from 68°F in December to 71°F in April. Total annual precipitation is 118.6 inches, with October being the wettest month (19.2") and February the driest (1.6").