San Mateo, Ecuador

Full City Profile

62 ft Elevation 19 meters

77°F Avg Temperature 25°C

San Mateo has a warm climate with an average annual temperature of 77°F (25°C). Winters average 77°F in January while summers reach 77°F in July. The area gets 343 sunny days per year. Annual precipitation totals 29.7 inches. The area receives 0.0 inches of snow annually.

Temperature

77°F Jan (25°C) 77°F Jul (25°C)

Annual Average	76.7°F
	42% above US avg
January Average	77°F (25°C)
July Average	77°F (25°C)
Sunny Days	343 days/yr

Geography

Elevation	62 ft (19 m)
Area	23.4 sq mi (60.5 km²)
Population Density	0/sq mi
Coordinates	-0.9596°N, 80.8106°W
Timezone	America/Guayaquil

Precipitation & Snow

Annual Rainfall 29.7"

22% below US avg

Snowfall 0.0"

Wettest Month (Mar) 5.30"

Driest Month (Jul) 0.30"

Air Quality

Earthquake History

326 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.2. Most recent: M4.0 on Jun 23, 2025.

Aug 4, 1998	3 km E of Bahía de Caráquez, Ecuador	M7.2	62 km
Sep 2, 1990	34 km SW of Pedernales, Ecuador	M6.6	108 km
Sep 28, 2000	45 km NNW of Bahía de Caráquez, Ecuador	M6.4	87 km
Aug 5, 1996	24 km NNW of Salinas, Ecuador	M6.3	117 km
Mar 31, 2019	31 km N of Santa Elena, Ecuador	M6.2	110 km
Jan 28, 2005	51 km WSW of Manta, Ecuador	M6.2	41 km
Jan 28, 2005	90 km WSW of Manta, Ecuador	M6.1	81 km
Jan 24, 2005	23 km W of Jipijapa, Ecuador	M6.1	45 km
Jan 21, 2005	21 km WSW of Montecristi, Ecuador	M6.0	20 km
Apr 22, 2016	34 km NNW of Bahía de Caráquez, Ecuador	M6.0	82 km
Jun 30, 2017	35 km NNW of Bahía de Caráquez, Ecuador	M6.0	83 km
Apr 22, 2016	36 km NNW of Bahía de Caráquez, Ecuador	M5.9	83 km
Apr 17, 2016	34 km NE of Bahía de Caráquez, Ecuador	M5.8	93 km
Jan 24, 2005	37 km W of Jipijapa, Ecuador	M5.8	50 km
Jan 30, 2005	43 km WNW of Manta, Ecuador	M5.7	34 km
Apr 17, 2016	50 km NW of Bahía de Caráquez, Ecuador	M5.6	82 km
Dec 16, 1996	near the coast of Ecuador	M5.5	81 km
Mar 31, 2019	34 km NNE of Santa Elena, Ecuador	M5.5	109 km
Feb 17, 2005	50 km NNW of Salinas, Ecuador	M5.5	94 km
Aug 4, 1991	23 km WNW of Manta, Ecuador	M5.5	13 km

Source: USGS (M2.5+, 1990–2025)

Tsunami History

1 tsunami recorded within 500 km.

Year	Location	Cause	Max Wave	Deaths	Distance
1933	ECUADOR	Earthquake	—	—	118 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	77°F (25°C)	3.5 in
February	78°F (25°C)	5.0 in
March	78°F (26°C)	5.3 in	Warmest, Wettest
April	78°F (25°C)	3.1 in
May	77°F (25°C)	1.4 in
June	75°F (24°C)	0.9 in
July	77°F (25°C)	0.3 in	Driest
August	74°F (23°C)	0.3 in	Coldest
September	74°F (23°C)	0.3 in
October	74°F (24°C)	0.3 in
November	75°F (24°C)	0.3 in
December	76°F (24°C)	0.7 in

San Mateo has a seasonal temperature swing of 4°F / from 74°F in August to 78°F in March. Total annual precipitation is 21.4 inches, with March being the wettest month (5.3") and July the driest (0.3").

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