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Weather & Climate in San Juan del Sur, Nicaragua
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Juan del Sur has a warm climate with an average annual temperature of 80°F (26°C). Winters average 78°F in January while summers reach 79°F in July / relatively mild seasonal variation. The area gets 224 sunny days per year, above the national average. Annual precipitation totals 62.4 inches (wetter than the 38-inch national average). The city sits at an elevation of 30 feet.
Temperature
78°F Jan (26°C)
79°F Jul (26°C)
| Annual Average | 79.6°F |
| 47% above US avg | |
| January Average | 78°F (26°C) |
| July Average | 79°F (26°C) |
| Sunny Days | 224 days/yr |
Geography
| Elevation | 30 ft (9 m) |
| Area | 404.2 sq mi (1,046.8 km²) |
| Population Density | 19/sq mi |
| Coordinates | 11.2529°N, 85.8705°W |
| Timezone | America/Managua |
Precipitation & Snow
Air Quality
Earthquake History
1,471 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M7.6.
| Sep 5, 2012 | 11 km ENE of Hojancha, Costa Rica | M7.6 | 143 km | 35 km |
| Apr 3, 1990 | 36 km SSW of La Conquista, Nicaragua | M6.8 | 51 km | 53 km |
| Mar 3, 1996 | 30 km WSW of Villa El Carmen, Nicaragua | M6.7 | 122 km | 33 km |
| Apr 11, 2014 | 15 km N of Belén, Nicaragua | M6.6 | 43 km | 135 km |
| Jul 2, 2005 | 32 km W of San Juan del Sur, Nicaragua | M6.6 | 33 km | 27 km |
| Mar 3, 1996 | 39 km WSW of Masachapa, Nicaragua | M6.6 | 116 km | 33 km |
| Apr 21, 2022 | 55 km WSW of Masachapa, Nicaragua | M6.6 | 123 km | 27 km |
| Oct 24, 2012 | Costa Rica | M6.5 | 144 km | 17 km |
| Jun 15, 2013 | 44 km W of Masachapa, Nicaragua | M6.5 | 128 km | 30 km |
| Mar 16, 1991 | 15 km N of Nandayure, Costa Rica | M6.3 | 142 km | 33 km |
| Aug 3, 2005 | 6 km NNW of Cárdenas, Nicaragua | M6.3 | 36 km | 14 km |
| Jun 29, 2004 | 129 km SSW of Masachapa, Nicaragua | M6.3 | 140 km | 9 km |
| Mar 2, 2004 | 33 km SW of Masachapa, Nicaragua | M6.2 | 106 km | 28 km |
| Apr 29, 2004 | 49 km SW of La Cruz, Costa Rica | M6.2 | 52 km | 10 km |
| Mar 1, 1991 | 13 km SE of Los Chiles, Costa Rica | M6.2 | 139 km | 197 km |
| Oct 12, 2024 | 40 km WNW of Tamarindo, Costa Rica | M6.2 | 89 km | 16 km |
| Apr 10, 2014 | 16 km SW of Valle San Francisco, Nicaragua | M6.1 | 139 km | 13 km |
| Sep 2, 1992 | 58 km SSW of Masachapa, Nicaragua | M6.0 | 93 km | 10 km |
| Nov 17, 1996 | 27 km SW of San Juan del Sur, Nicaragua | M6.0 | 28 km | 33 km |
| Oct 9, 1998 | 51 km S of El Rosario, Nicaragua | M6.0 | 64 km | 69 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
6 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2022 | Julia | Category 1 | 86 mph | 173 km |
| 2020 | Iota | Category 4 | 144 mph | 282 km |
| 2016 | Otto | Category 3 | 115 mph | 113 km |
| 2005 | Beta | Category 2 | 104 mph | 283 km |
| 1996 | Cesar | Category 1 | 86 mph | 216 km |
| 1988 | Joan:miriam | Category 4 | 144 mph | 126 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 2.0 m (7 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1950 | COSTA RICA-NICARAGUA | Earthquake | 2.0 m | — | 99 km |
| 1901 | NICARAGUA | Earthquake | 1.5 m | — | 74 km |
| 2012 | COSTA RICA | Earthquake | 0.2 m | 2 | 143 km |
| 1952 | COSTA RICA-PANAMA | Earthquake | 0.1 m | — | 148 km |
Source: NOAA/NCEI Historical Tsunami Database.
Nearby Volcanoes
15 volcanoes within 200 km. Closest: Concepcion (42 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Concepcion | Stratovolcano | 1,700 m (5,577 ft) | 2011 | 42 km |
| Orosi | Stratovolcano(es) | 1,659 m (5,443 ft) | Unknown | 53 km |
| Zapatera | Shield | 629 m (2,064 ft) | Unknown | 53 km |
| Mombacho | Stratovolcano | 1,344 m (4,409 ft) | Unknown | 65 km |
| Granada | Fissure vent(s) | 300 m (984 ft) | Unknown | 75 km |
| Rincon de la Vieja | Complex | 1,916 m (6,286 ft) | 2020 | 76 km |
| Masaya | Caldera | 594 m (1,949 ft) | 2020 | 88 km |
| Miravalles | Stratovolcano | 2,028 m (6,654 ft) | 1946 | 96 km |
| Nejapa-Miraflores | Fissure vent(s) | 360 m (1,181 ft) | 1060 | 108 km |
| Tenorio | Stratovolcano(es) | 1,916 m (6,286 ft) | Unknown | 114 km |
| Lajas, Las | Shield | 926 m (3,038 ft) | Unknown | 117 km |
| Apoyeque | Pyroclastic shield | 518 m (1,699 ft) | -50 | 121 km |
| Momotombo | Stratovolcano | 1,270 m (4,167 ft) | 2016 | 149 km |
| Arenal | Stratovolcano | 1,670 m (5,479 ft) | 2010 | 155 km |
| Pilas, Las | Complex | 1,088 m (3,570 ft) | 1954 | 164 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 78°F (26°C) | 0.5 in | |
| February | 79°F (26°C) | 0.1 in | Driest |
| March | 81°F (27°C) | 0.1 in | |
| April | 82°F (28°C) | 0.7 in | |
| May | 82°F (28°C) | 6.8 in | Warmest |
| June | 80°F (26°C) | 10.8 in | |
| July | 79°F (26°C) | 6.5 in | |
| August | 80°F (26°C) | 7.2 in | |
| September | 79°F (26°C) | 11.4 in | |
| October | 79°F (26°C) | 13.2 in | Wettest |
| November | 79°F (26°C) | 3.9 in | |
| December | 78°F (26°C) | 1.2 in | Coldest |
San Juan del Sur has a seasonal temperature swing of 4°F / from 78°F in December to 82°F in May. Total annual precipitation is 62.4 inches, with October being the wettest month (13.2") and February the driest (0.1").