San Sebastián Coatlán, Mexico

Full City Profile

1,258 Population 4/sq mi density

6,506 ft Elevation 1,983 meters

67°F Avg Temperature 19°C

San Sebastián Coatlán enjoys a temperate climate with an average annual temperature of 67°F (19°C). Winters average 64°F in January while summers reach 67°F in July. The area gets 267 sunny days per year. Annual precipitation totals 37.9 inches. The area receives 0.0 inches of snow annually.

Temperature

64°F Jan (18°C) 67°F Jul (20°C)

Annual Average	66.6°F
	23% above US avg
January Average	64°F (18°C)
July Average	67°F (20°C)
Sunny Days	267 days/yr

Geography

Elevation	6,506 ft (1,983 m)
Area	351.7 sq mi (911.0 km²)
Population Density	4/sq mi
Coordinates	16.2017°N, 96.8267°W
Timezone	America/Mexico_City

Precipitation & Snow

Annual Rainfall 37.9"

0% below US avg

Snowfall 0.0"

Wettest Month (Jun) 7.91"

Driest Month (Jan) 0.20"

Air Quality

Earthquake History

1,693 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.5. Most recent: M4.1 on Aug 28, 2025.

Sep 30, 1999	15 km W of San Baltazar Loxicha, Mexico	M7.5	19 km
Jun 23, 2020	9 km SE of Santa María Xadani, Mexico	M7.4	94 km
Feb 16, 2018	4 km S of Pinotepa de Don Luis, Mexico	M7.2	125 km
Feb 25, 1996	24 km SSW of Santa María Chico Ometepec, Mexico	M7.1	135 km
Jul 19, 1997	4 km ENE of El Ciruelo, Mexico	M6.9	149 km
Feb 3, 1998	2 km E of Benito Juárez, Mexico	M6.4	67 km
Jun 30, 2010	2 km ESE of San Agustín Chayuco, Mexico	M6.3	104 km
Feb 25, 1996	7 km SE of Santa María Chico Ometepec, Mexico	M6.2	118 km
Mar 19, 1996	21 km WSW of Bajos de Chila, Mexico	M5.9	64 km
Jun 14, 2004	0 km W of Santa Catarina Mechoacán, Mexico	M5.9	110 km
Feb 19, 2018	4 km SSE of Santiago Tetepec, Mexico	M5.9	97 km
Feb 17, 2018	8 km SE of José María Morelos, Mexico	M5.8	111 km
May 8, 2016	3 km WNW of San Agustín Chayuco, Mexico	M5.8	111 km
Aug 2, 2025	4 km S of Xagacía, Mexico	M5.8	118 km
Jun 27, 2016	8 km S of La Reforma, Mexico	M5.7	114 km
Feb 9, 2010	8 km E of Santa María Colotepec, Mexico	M5.7	35 km
May 24, 2014	2 km S of San Sebastián Ixcapa, Mexico	M5.7	145 km
Mar 27, 1996	1 km W of San Miguel Tlacamama, Mexico	M5.6	136 km
Mar 15, 2025	5 km W of San Pedro Tidaá, Mexico	M5.6	141 km
Jun 7, 2002	4 km N of Santa Catarina Loxicha, Mexico	M5.6	13 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

13 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 4. Most recent: Erick (2025).

Year	Name	Category	Closest
2025	Erick	Category 4	106 km
2024	John	Category 3	192 km
2022	Agatha	Category 2	57 km
2017	Max	Category 1	228 km
2013	Barbara	Category 1	286 km
2012	Carlotta	Category 2	45 km
2011	Hilary	Category 2	232 km
2006	John	Category 3	281 km
1998	Lester	Category 2	190 km
1997	Pauline	Category 4	56 km
1997	Rick	Category 2	41 km
1996	Douglas	Category 1	289 km
1989	Cosme	Category 1	244 km

Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

8 tsunamis recorded within 500 km. Highest wave on record: 1.6 m (5 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
2020	OFF COAST OF OAXACA	Earthquake	1.6 m	10	94 km
1965	MEXICO	Earthquake	0.4 m	6	110 km
2022	S. MEXICO	Earthquake	0.2 m	—	93 km
1928	S. MEXICO	Earthquake	0.2 m	4	30 km
1996	MEXICO	Earthquake	0.1 m	—	135 km
1968	ACAPULCO	Earthquake	—	18	104 km
1928	MEXICO	Earthquake	—	—	98 km
1870	PUERTO ANGEL, MEXICO	Earthquake	—	24	106 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	64°F (18°C)	0.2 in	Coldest, Driest
February	65°F (19°C)	0.4 in
March	67°F (20°C)	0.5 in
April	69°F (21°C)	1.3 in
May	70°F (21°C)	4.0 in	Warmest
June	68°F (20°C)	7.9 in	Wettest
July	67°F (20°C)	6.0 in
August	67°F (20°C)	6.7 in
September	67°F (19°C)	6.7 in
October	66°F (19°C)	3.2 in
November	65°F (18°C)	0.7 in
December	64°F (18°C)	0.4 in

San Sebastián Coatlán has a seasonal temperature swing of 6°F / from 64°F in January to 70°F in May. Total annual precipitation is 37.9 inches, with June being the wettest month (7.9") and January the driest (0.2").

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