Grand Roy, Grenada

Full City Profile

2,400 Population 57/sq mi density

69 ft Elevation 21 meters

78°F Avg Temperature 26°C

Grand Roy has a warm climate with an average annual temperature of 78°F (26°C). Winters average 76°F in January while summers reach 79°F in July. The area gets 208 sunny days per year. Annual precipitation totals 70.5 inches. The area receives 0.0 inches of snow annually.

Temperature

76°F Jan (25°C) 79°F Jul (26°C)

Annual Average	78.4°F
	45% above US avg
January Average	76°F (25°C)
July Average	79°F (26°C)
Sunny Days	208 days/yr

Geography

Elevation	69 ft (21 m)
Area	42.0 sq mi (108.8 km²)
Population Density	57/sq mi
Coordinates	12.1322°N, 61.7454°W
Timezone	America/Grenada

Precipitation & Snow

Annual Rainfall 70.5"

85% above US avg

Snowfall 0.0"

Wettest Month (Nov) 9.29"

Driest Month (Mar) 2.32"

Air Quality

Earthquake History

951 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.7. Most recent: M0.0 on Jun 24, 2025.

Apr 22, 1997	18 km WSW of Scarborough, Trinidad and Tobago	M6.7	147 km
Oct 4, 2000	66 km NNW of Güiria, Venezuela	M6.2	143 km
Apr 2, 1997	33 km NW of Scarborough, Trinidad and Tobago	M6.1	119 km
Oct 12, 2013	36 km N of Güiria, Venezuela	M6.0	150 km
Apr 22, 1997	29 km SW of Scarborough, Trinidad and Tobago	M5.6	150 km
May 4, 1997	31 km WSW of Scarborough, Trinidad and Tobago	M5.5	149 km
Nov 5, 2017	67 km SE of Saint David’s, Grenada	M5.5	80 km
Jan 1, 1996	61 km NNW of Petit Valley, Trinidad and Tobago	M5.4	100 km
Jun 1, 1994	72 km ESE of Grenville, Grenada	M5.4	85 km
Feb 4, 2011	84 km NNE of Güiria, Venezuela	M5.2	100 km
Jun 27, 2008	64 km N of Güiria, Venezuela	M5.2	131 km
Aug 14, 2010	79 km N of Güiria, Venezuela	M5.2	118 km
Jan 29, 2022	41 km WSW of Scarborough, Trinidad and Tobago	M5.1	148 km
Apr 25, 1997	31 km W of Scarborough, Trinidad and Tobago	M5.0	136 km
Jul 22, 1998	88 km ESE of Hillsborough, Grenada	M5.0	110 km
Apr 7, 2020	67 km NW of Scarborough, Trinidad and Tobago	M5.0	85 km
Apr 22, 1997	48 km NNE of Arima, Trinidad and Tobago	M5.0	135 km
Sep 10, 2015	66 km NNW of Güiria, Venezuela	M4.9	135 km
Jan 4, 2019	31 km N of Paradise, Trinidad and Tobago	M4.9	139 km
Feb 23, 2007	19 km NW of Petit Valley, Trinidad and Tobago	M4.9	146 km

Source: USGS (M2.5+, 1990–2025)

Hurricane History

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

Year	Name	Category	Closest
2024	Beryl	Category 5	49 km
2021	Elsa	Category 1	157 km
2010	Tomas	Category 2	149 km
2007	Dean	Category 3	252 km
2005	Emily	Category 2	16 km
2004	Ivan	Category 4	26 km
1980	Allen	Category 4	182 km

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

Tsunami History

2 tsunamis recorded within 500 km. Highest wave on record: 1.0 m (3 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1902	SOUFRIERE VOLCANO	Astronomical	1.0 m	1,680	147 km
2021	SOUFRIERE VOLCANO	Astronomical	0.1 m	—	147 km

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

Nearby Volcanoes

3 volcanoes within 200 km. Closest: St. Catherine (8 km).

Name	Type	Elevation	Last Eruption	Distance
St. Catherine	Stratovolcano	840 m (2,756 ft)	Unknown	8 km
Kick 'em Jenny	Submarine	-185 m (-607 ft)	2017	22 km
Soufriere St. Vincent	Stratovolcano	1,220 m (4,003 ft)	1979	147 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	76°F (25°C)	5.0 in	Coldest
February	76°F (25°C)	3.2 in
March	77°F (25°C)	2.3 in	Driest
April	79°F (26°C)	2.4 in
May	80°F (26°C)	3.8 in
June	79°F (26°C)	6.7 in
July	79°F (26°C)	7.0 in
August	80°F (26°C)	7.8 in
September	80°F (27°C)	7.4 in	Warmest
October	80°F (26°C)	8.1 in
November	78°F (26°C)	9.3 in	Wettest
December	77°F (25°C)	7.5 in

Grand Roy has a seasonal temperature swing of 4°F / from 76°F in January to 80°F in September. Total annual precipitation is 70.5 inches, with November being the wettest month (9.3") and March the driest (2.3").

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