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Weather & Climate in Casillas, Guatemala
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Casillas enjoys a temperate climate with an average annual temperature of 69°F (20°C). Winters average 66°F in January while summers reach 69°F in July / relatively mild seasonal variation. The area gets 223 sunny days per year, above the national average. Annual precipitation totals 62.3 inches (wetter than the 38-inch national average). The city sits at an elevation of 3,540 feet.
Temperature
66°F Jan (19°C)
69°F Jul (21°C)
| Annual Average | 68.5°F |
| 27% above US avg | |
| January Average | 66°F (19°C) |
| July Average | 69°F (21°C) |
| Sunny Days | 223 days/yr |
Geography
| Elevation | 3,540 ft (1,079 m) |
| Area | 109.6 sq mi (283.8 km²) |
| Population Density | 70/sq mi |
| Coordinates | 14.4192°N, 90.2433°W |
| Timezone | America/Guatemala |
Precipitation & Snow
Air Quality
Earthquake History
1,482 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.8.
| Jun 22, 2017 | 28 km SW of Puerto San José, Guatemala | M6.8 | 111 km | 38 km |
| Jun 13, 2007 | 43 km SSE of Iztapa, Guatemala | M6.7 | 104 km | 23 km |
| Jan 10, 1998 | 10 km SSW of San José El Ídolo, Guatemala | M6.6 | 133 km | 33 km |
| Jan 21, 2003 | 33 km S of Puerto San José, Guatemala | M6.5 | 105 km | 24 km |
| May 17, 2023 | 8 km SE of Canillá, Guatemala | M6.4 | 97 km | 252 km |
| Jun 6, 1999 | 6 km ESE of Puerto San José, Guatemala | M6.3 | 81 km | 33 km |
| May 3, 2009 | 5 km S of San Lucas Tolimán, Guatemala | M6.3 | 98 km | 108 km |
| May 10, 1998 | 28 km S of Iztapa, Guatemala | M6.3 | 99 km | 33 km |
| Sep 18, 1991 | 4 km SE of Patzún, Guatemala | M6.2 | 84 km | 5 km |
| Mar 25, 2013 | 3 km NW of Fraijanes, Guatemala | M6.2 | 25 km | 189 km |
| Jul 21, 2024 | 6 km E of Jalapa, Guatemala | M6.2 | 42 km | 272 km |
| Feb 16, 2022 | 12 km WSW of Nueva Concepción, Guatemala | M6.2 | 128 km | 60 km |
| Jan 27, 2024 | 15 km W of Taxisco, Guatemala | M6.1 | 56 km | 90 km |
| Mar 17, 2005 | 10 km NE of San Bartolo, Guatemala | M6.1 | 147 km | 197 km |
| Mar 3, 1998 | 9 km SSW of San José El Ídolo, Guatemala | M6.1 | 132 km | 63 km |
| Apr 15, 2008 | 42 km SSE of Iztapa, Guatemala | M6.1 | 103 km | 33 km |
| Dec 22, 1997 | 28 km SSW of Pasaco, Guatemala | M6.1 | 76 km | 59 km |
| Sep 28, 1992 | 50 km S of Iztapa, Guatemala | M6.0 | 115 km | 67 km |
| Aug 25, 2003 | 5 km SSW of La Gomera, Guatemala | M6.0 | 99 km | 100 km |
| Dec 4, 1997 | 33 km S of Iztapa, Guatemala | M6.0 | 98 km | 81 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2005 | Adrian | Category 1 | 81 mph | 214 km |
| 2001 | Iris | Category 4 | 144 mph | 258 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 4.0 m (13 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2005 | LAGO DE ATITLAN | Meteorological | 4.0 m | — | 110 km |
| 1902 | EL SALVADOR-GUATEMALA | Questionable Earthquake | 2.0 m | 185 | 130 km |
| 1859 | EL SALVADOR | Earthquake | — | — | 93 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Cuilapa-Barbarena (20 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Cuilapa-Barbarena | Volcanic field | 1,454 m (4,770 ft) | Unknown | 20 km |
| Flores | Volcanic field | 1,600 m (5,249 ft) | Unknown | 30 km |
| Tecuamburro | Stratovolcano | 1,845 m (6,053 ft) | -960 | 34 km |
| Tahual | Stratovolcano | 1,716 m (5,630 ft) | Unknown | 37 km |
| Pacaya | Complex | 2,569 m (8,428 ft) | 2020 | 39 km |
| Santiago, Cerro | Volcanic field | 1,192 m (3,911 ft) | Unknown | 41 km |
| Moyuta | Stratovolcano | 1,662 m (5,453 ft) | Unknown | 46 km |
| Suchitan | Stratovolcano(es) | 2,042 m (6,699 ft) | Unknown | 50 km |
| Agua | Stratovolcano | 3,760 m (12,336 ft) | Unknown | 54 km |
| Ixtepeque | Lava dome(s) | 1,292 m (4,239 ft) | Unknown | 61 km |
| Chingo | Stratovolcano | 1,775 m (5,823 ft) | Unknown | 65 km |
| Ipala | Stratovolcano | 1,650 m (5,413 ft) | Unknown | 68 km |
| Acatenango | Stratovolcano(es) | 3,976 m (13,045 ft) | 1972 | 69 km |
| Fuego | Stratovolcano(es) | 3,763 m (12,346 ft) | 2020 | 69 km |
| Apaneca Range | Stratovolcano(es) | 2,036 m (6,680 ft) | Unknown | 77 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 66°F (19°C) | 0.2 in | Driest |
| February | 68°F (20°C) | 0.2 in | |
| March | 69°F (21°C) | 0.5 in | |
| April | 71°F (21°C) | 2.2 in | Warmest |
| May | 70°F (21°C) | 7.4 in | |
| June | 69°F (21°C) | 12.1 in | Wettest |
| July | 69°F (21°C) | 9.4 in | |
| August | 69°F (21°C) | 8.7 in | |
| September | 69°F (20°C) | 11.9 in | |
| October | 68°F (20°C) | 8.1 in | |
| November | 67°F (19°C) | 1.4 in | |
| December | 66°F (19°C) | 0.3 in | Coldest |
Casillas has a seasonal temperature swing of 4°F / from 66°F in December to 71°F in April. Total annual precipitation is 62.3 inches, with June being the wettest month (12.1") and January the driest (0.2").