Juan Santiago, Dominican Republic

Full City Profile

1,549 Population 14/sq mi density

2,648 ft Elevation 807 meters

71°F Avg Temperature 21°C

Juan Santiago has a warm climate with an average annual temperature of 71°F (22°C). Winters average 67°F in January while summers reach 73°F in July. The area gets 234 sunny days per year. Annual precipitation totals 56.1 inches. The area receives 0.0 inches of snow annually.

Temperature

67°F Jan (20°C) 73°F Jul (23°C)

Annual Average	70.6°F
	31% above US avg
January Average	67°F (20°C)
July Average	73°F (23°C)
Sunny Days	234 days/yr

Geography

Elevation	2,648 ft (807 m)
Area	112.8 sq mi (292.1 km²)
Population Density	14/sq mi
Coordinates	18.7034°N, 71.5897°W
Timezone	America/Santo_Domingo

Precipitation & Snow

Annual Rainfall 56.1"

48% above US avg

Snowfall 0.0"

Wettest Month (May) 9.29"

Driest Month (Jan) 0.63"

Air Quality

Earthquake History

258 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.0. Most recent: M3.8 on Aug 7, 2025.

Jan 12, 2010	10 km SE of Léogâne, Haiti	M7.0	107 km
Jan 12, 2010	4 km SSW of Grangwav, Haiti	M6.0	131 km
Jan 20, 2010	4 km ESE of Tigwav, Haiti	M5.9	134 km
Jan 13, 2010	Haiti region	M5.8	143 km
Jan 12, 2010	Haiti region	M5.7	101 km
Jan 15, 1992	30 km SSW of Sabana Buey, Dominican Republic	M5.7	128 km
Jan 13, 2010	1 km SSE of Tigwav, Haiti	M5.6	138 km
Jul 12, 1994	3 km N of Guananico, Dominican Republic	M5.6	136 km
Jan 13, 2010	5 km SE of Tigwav, Haiti	M5.6	135 km
Jan 5, 2012	5 km NNW of Baní, Dominican Republic	M5.5	136 km
Jan 13, 2010	4 km SSW of Tigwav, Haiti	M5.4	141 km
Jan 8, 1997	63 km S of Marigot, Haiti	M5.4	132 km
Jan 12, 2010	Haiti region	M5.3	103 km
Aug 19, 1993	11 km SSW of El Cacao, Dominican Republic	M5.3	136 km
Jan 13, 2010	12 km S of Tigwav, Haiti	M5.2	143 km
Jan 13, 2010	8 km SSW of Grangwav, Haiti	M5.2	134 km
Apr 8, 1993	3 km WNW of Santa Cruz de Barahona, Dominican Republic	M5.2	72 km
Aug 10, 1998	11 km NNW of San José de Ocoa, Dominican Republic	M5.2	111 km
Jan 13, 2010	10 km SSE of Tigwav, Haiti	M5.1	138 km
Jan 13, 2010	4 km W of Grangwav, Haiti	M5.1	133 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

19 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 5.

Year	Name	Category	Closest
2024	Oscar	Category 1	291 km
2022	Fiona	Category 3	228 km
2020	Isaias	Category 1	139 km
2017	Irma	Category 5	250 km
2017	Maria	Category 3	286 km
2016	Matthew	Category 4	286 km
2011	Irene	Category 2	212 km
2010	Tomas	Category 1	256 km
2008	Ike	Category 4	259 km
2008	Gustav	Category 1	139 km
2007	Dean	Category 4	278 km
2006	Ernesto	Category 1	232 km
2004	Jeanne	Category 1	273 km
2001	Iris	Category 1	211 km
1998	Georges	Category 3	30 km
1996	Hortense	Category 2	269 km
1988	Gilbert	Category 3	216 km
1987	Emily	Category 3	34 km
1980	Allen	Category 5	224 km

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

Tsunami History

4 tsunamis recorded within 500 km. Highest wave on record: 5.0 m (16 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1842	CAP-HAITIAN	Earthquake	5.0 m	5,300	133 km
2010	HAITI & DOMINICAN REPUBLIC	Eruption + Earthquake	3.2 m	316,000	103 km
1770	PORT-AU-PRINCE	Eruption + Earthquake	—	200	78 km
1751	AZUA DE COMPOSTELA	Earthquake	—	—	97 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	67°F (20°C)	0.6 in	Coldest, Driest
February	68°F (20°C)	1.0 in
March	70°F (21°C)	2.2 in
April	71°F (22°C)	5.5 in
May	72°F (22°C)	9.3 in	Wettest
June	73°F (23°C)	5.5 in
July	73°F (23°C)	4.7 in
August	73°F (23°C)	7.1 in	Warmest
September	73°F (23°C)	8.1 in
October	72°F (22°C)	8.0 in
November	70°F (21°C)	3.2 in
December	68°F (20°C)	0.9 in

Juan Santiago has a seasonal temperature swing of 6°F / from 67°F in January to 73°F in August. Total annual precipitation is 56.1 inches, with May being the wettest month (9.3") and January the driest (0.6").

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