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Weather & Climate in San Margos, Belize
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Margos has a warm climate with an average annual temperature of 78°F (25°C). Winters average 73°F in January while summers reach 79°F in July / relatively mild seasonal variation. The area gets 157 sunny days per year, below the national average of 205. Annual precipitation totals 130.7 inches (wetter than the 38-inch national average). The city sits at an elevation of 89 feet.
Temperature
73°F Jan (23°C)
79°F Jul (26°C)
| Annual Average | 77.5°F |
| 44% above US avg | |
| January Average | 73°F (23°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 157 days/yr |
Geography
| Elevation | 89 ft (27 m) |
| Area | 3.4 sq mi (8.9 km²) |
| Population Density | 252/sq mi |
| Coordinates | 16.2168°N, 88.9010°W |
| Timezone | America/Belize |
Precipitation & Snow
Air Quality
Earthquake History
59 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.7.
| Jul 11, 1999 | 16 km N of Potrerillos, Honduras | M6.7 | 78 km | 10 km |
| Jul 6, 1997 | 30 km NNW of Baja Mar, Honduras | M6.1 | 105 km | 33 km |
| Aug 2, 2022 | 38 km N of Tela, Honduras | M5.4 | 150 km | 10 km |
| Aug 25, 2021 | 11 km NNE of Pinalejo, Honduras | M5.2 | 102 km | 8 km |
| Apr 23, 2012 | 28 km NNE of El Estor, Guatemala | M5.2 | 60 km | 10 km |
| Sep 25, 2022 | 24 km NE of Puerto Barrios, Guatemala | M5.1 | 67 km | 10 km |
| Jan 11, 2010 | 9 km ESE of Morales, Guatemala | M5.1 | 88 km | 10 km |
| Jun 6, 2009 | 38 km NE of Baja Mar, Honduras | M5.0 | 134 km | 10 km |
| Jul 11, 1999 | 11 km N of Puerto Barrios, Guatemala | M4.8 | 53 km | 10 km |
| Feb 1, 1991 | 20 km NNE of Baja Mar, Honduras | M4.8 | 122 km | 33 km |
| Jul 19, 1999 | 2 km NW of Potrerillos, Honduras | M4.6 | 88 km | 10 km |
| May 30, 2009 | 32 km NNE of Baja Mar, Honduras | M4.6 | 127 km | 10 km |
| Oct 18, 2009 | 19 km NNW of Omoa, Honduras | M4.6 | 90 km | 10 km |
| Dec 18, 1990 | 11 km N of Mezapa, Honduras | M4.6 | 147 km | 33 km |
| Feb 5, 1993 | 2 km WNW of Trinidad, Honduras | M4.6 | 138 km | 140 km |
| Mar 27, 2007 | 11 km SSE of Río Chiquito, Honduras | M4.6 | 106 km | 40 km |
| Apr 17, 2008 | 7 km SW of Poptún, Guatemala | M4.5 | 61 km | 10 km |
| Nov 21, 1995 | 12 km WSW of Gualán, Guatemala | M4.5 | 140 km | 10 km |
| Jul 14, 1999 | 23 km NNE of Puerto Barrios, Guatemala | M4.5 | 53 km | 10 km |
| Jul 11, 1999 | 2 km E of Puerto Barrios, Guatemala | M4.5 | 65 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
8 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2022 | Lisa | Category 1 | 92 mph | 146 km |
| 2020 | Nana | Category 1 | 75 mph | 91 km |
| 2016 | Earl | Category 1 | 86 mph | 132 km |
| 2012 | Ernesto | Category 2 | 98 mph | 287 km |
| 2010 | Richard | Category 2 | 98 mph | 122 km |
| 2007 | Dean | Category 5 | 173 mph | 299 km |
| 2001 | Iris | Category 4 | 144 mph | 22 km |
| 2000 | Keith | Category 4 | 138 mph | 193 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
2 tsunamis recorded within 500 km. Highest wave on record: 5.0 m (16 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1856 | BAY OF HONDURAS | Eruption + Earthquake | 5.0 m | — | 99 km |
| 1976 | GUATEMALA | Earthquake | 0.1 m | 23,000 | 102 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
2 volcanoes within 200 km. Closest: Chiquimula Volcanic Field (169 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Chiquimula Volcanic Field | Pyroclastic cone(s) | 1,192 m (3,911 ft) | Unknown | 169 km |
| Yojoa, Lake | Volcanic field | 1,090 m (3,576 ft) | Unknown | 169 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 73°F (23°C) | 6.6 in | Coldest |
| February | 75°F (24°C) | 3.5 in | |
| March | 77°F (25°C) | 3.4 in | |
| April | 79°F (26°C) | 2.6 in | Driest |
| May | 80°F (27°C) | 5.8 in | Warmest |
| June | 80°F (27°C) | 18.6 in | |
| July | 79°F (26°C) | 24.8 in | Wettest |
| August | 79°F (26°C) | 22.2 in | |
| September | 80°F (26°C) | 17.3 in | |
| October | 78°F (26°C) | 11.3 in | |
| November | 75°F (24°C) | 8.2 in | |
| December | 74°F (23°C) | 6.4 in |
San Margos has a seasonal temperature swing of 7°F / from 73°F in January to 80°F in May. Total annual precipitation is 130.7 inches, with July being the wettest month (24.8") and April the driest (2.6").