San Gregorio, Ecuador

Full City Profile

7 ft Elevation 2 meters

77°F Avg Temperature 25°C

San Gregorio has a warm climate with an average annual temperature of 77°F (25°C). Winters average 78°F in January while summers reach 76°F in July. The area gets 324 sunny days per year. Annual precipitation totals 86.7 inches. The area receives 0.0 inches of snow annually.

Temperature

78°F Jan (25°C) 76°F Jul (25°C)

Annual Average	77.1°F
	43% above US avg
January Average	78°F (25°C)
July Average	76°F (25°C)
Sunny Days	324 days/yr

Geography

Elevation	7 ft (2 m)
Area	117.1 sq mi (303.4 km²)
Population Density	0/sq mi
Coordinates	0.5283°N, 79.9705°W
Timezone	America/Guayaquil

Precipitation & Snow

Annual Rainfall 86.7"

128% above US avg

Snowfall 0.0"

Wettest Month (Mar) 10.20"

Driest Month (Aug) 1.40"

Air Quality

Earthquake History

239 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.8. Most recent: M4.4 on Jul 20, 2025.

Apr 16, 2016	27 km SSE of Muisne, Ecuador	M7.8	17 km
Aug 4, 1998	3 km E of Bahía de Caráquez, Ecuador	M7.2	133 km
May 18, 2016	24 km NW of Rosa Zarate, Ecuador	M6.9	40 km
May 18, 2016	32 km SE of Muisne, Ecuador	M6.7	23 km
Sep 2, 1990	34 km SW of Pedernales, Ecuador	M6.6	82 km
Sep 28, 2000	45 km NNW of Bahía de Caráquez, Ecuador	M6.4	107 km
Apr 25, 2025	19 km NE of Esmeraldas, Ecuador	M6.3	79 km
Jul 11, 2016	33 km NNW of Rosa Zarate, Ecuador	M6.3	37 km
Apr 20, 2016	21 km W of Muisne, Ecuador	M6.2	29 km
Apr 22, 2016	34 km NNW of Bahía de Caráquez, Ecuador	M6.0	109 km
Jun 30, 2017	35 km NNW of Bahía de Caráquez, Ecuador	M6.0	108 km
Apr 20, 2016	10 km N of Muisne, Ecuador	M6.0	21 km
Jul 11, 2016	33 km NNW of Rosa Zarate, Ecuador	M5.9	38 km
Apr 22, 2016	36 km NNW of Bahía de Caráquez, Ecuador	M5.9	108 km
Mar 27, 2022	7 km SE of Esmeraldas, Ecuador	M5.8	58 km
Apr 17, 2016	34 km NE of Bahía de Caráquez, Ecuador	M5.8	105 km
Jun 16, 2014	51 km NW of Pampanal de Bolívar, Ecuador	M5.7	147 km
Apr 23, 2016	26 km W of Muisne, Ecuador	M5.7	33 km
Mar 9, 2014	61 km NW of Valdez, Ecuador	M5.6	143 km
Apr 17, 2016	50 km NW of Bahía de Caráquez, Ecuador	M5.6	117 km

Source: USGS (M2.5+, 1990–2025)

Tsunami History

6 tsunamis recorded within 500 km. Highest wave on record: 6.0 m (20 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1979	COLOMBIA: OFF SHORE, PACIFIC OCEAN	Earthquake	6.0 m	600	138 km
1906	OFF COAST	Earthquake	5.0 m	1,000	82 km
2016	OFF COAST	Earthquake	0.6 m	663	17 km
2025	ECUADOR	Earthquake	0.4 m	—	80 km
1906	COLOMBIA-ECUADOR	Earthquake	0.3 m	—	126 km
1958	COLOMBIA-ECUADOR	Earthquake	—	115	120 km

Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

7 volcanoes within 200 km. Closest: Guagua Pichincha (171 km).

Name	Type	Elevation	Last Eruption	Distance
Guagua Pichincha	Stratovolcano	4,784 m (15,696 ft)	2002	171 km
Pululahua	Caldera	3,356 m (11,010 ft)	290	176 km
Atacazo	Stratovolcano	4,463 m (14,642 ft)	-320	180 km
Cuicocha	Caldera	3,246 m (10,650 ft)	650	180 km
Chachimbiro	Stratovolcano	4,106 m (13,471 ft)	-3740	187 km
Illiniza	Stratovolcano	5,248 m (17,218 ft)	Unknown	192 km
Mojanda	Stratovolcano(es)	4,263 m (13,986 ft)	Unknown	194 km

Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	78°F (25°C)	9.1 in
February	78°F (26°C)	9.6 in
March	79°F (26°C)	10.2 in	Warmest, Wettest
April	79°F (26°C)	8.4 in
May	78°F (26°C)	5.6 in
June	77°F (25°C)	5.4 in
July	76°F (25°C)	2.4 in
August	76°F (24°C)	1.4 in	Driest
September	76°F (24°C)	1.8 in	Coldest
October	76°F (25°C)	2.0 in
November	76°F (25°C)	1.4 in
December	77°F (25°C)	2.8 in

San Gregorio has a seasonal temperature swing of 3°F / from 76°F in September to 79°F in March. Total annual precipitation is 60.1 inches, with March being the wettest month (10.2") and August the driest (1.4").

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