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Weather & Climate in Gun Bay, Cayman Islands

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Gun Bay has a warm climate with an average annual temperature of 81°F (27°C). Winters average 77°F in January while summers reach 84°F in July / relatively mild seasonal variation. The area gets 235 sunny days per year, above the national average. Annual precipitation totals 55.4 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 9 / among the cleanest air in the country. 93% of days have good air quality. The city sits at an elevation of 3 feet.

Temperature

77°F Jan (25°C) 84°F Jul (29°C)
Annual Average80.5°F
49% above US avg
January Average77°F (25°C)
July Average84°F (29°C)
Sunny Days235 days/yr

Geography

Elevation3 ft (1 m)
Area18.0 sq mi (46.5 km²)
Population Density361/sq mi
Coordinates19.3108°N, 81.0920°W
TimezoneAmerica/Cayman

Precipitation & Snow

Annual Rainfall 55.4"
46% above US avg
Snowfall 0.0"
Wettest Month (Oct) 8.90"
Driest Month (Mar) 1.14"

Air Quality

AQI Median9.0
RatingGood
Good Days %93.2%

Earthquake History

83 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.1.

Jan 28, 2020 55 km SE of East End, Cayman Islands M6.1 55 km 10 km
Jun 27, 1995 61 km SW of George Town, Cayman Islands M6.0 85 km 10 km
Jan 19, 2010 46 km SE of East End, Cayman Islands M5.9 46 km 10 km
Aug 26, 1991 45 km SSE of East End, Cayman Islands M5.8 45 km 10 km
Jun 27, 1992 66 km ESE of East End, Cayman Islands M5.6 65 km 10 km
Jan 28, 2020 40 km SSE of East End, Cayman Islands M5.4 41 km 10 km
Sep 3, 2014 45 km S of Bodden Town, Cayman Islands M5.2 55 km 10 km
Sep 3, 2014 44 km S of Bodden Town, Cayman Islands M5.2 54 km 10 km
Apr 12, 2001 89 km SSW of George Town, Cayman Islands M5.2 107 km 10 km
Jan 28, 2020 34 km SE of East End, Cayman Islands M4.9 34 km 10 km
Jan 30, 2020 43 km SSE of East End, Cayman Islands M4.7 44 km 10 km
Mar 11, 2008 74 km ESE of East End, Cayman Islands M4.6 72 km 10 km
Mar 1, 2010 49 km SSW of George Town, Cayman Islands M4.6 67 km 6 km
Jun 16, 2022 103 km SSW of George Town, Cayman Islands M4.5 121 km 10 km
Jan 29, 2020 48 km SSE of East End, Cayman Islands M4.5 49 km 10 km
Jan 28, 2020 41 km SE of East End, Cayman Islands M4.5 41 km 12 km
May 5, 2024 54 km SE of East End, Cayman Islands M4.5 53 km 10 km
Jan 29, 2020 48 km SE of East End, Cayman Islands M4.5 47 km 10 km
Mar 22, 2020 49 km SE of East End, Cayman Islands M4.5 49 km 10 km
Jan 28, 2020 68 km SE of East End, Cayman Islands M4.5 67 km 10 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

24 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.

Year Name Category Max Wind Closest
2024 Beryl Category 4 132 mph 92 km
2024 Rafael Category 3 115 mph 76 km
2022 Ian Category 3 115 mph 153 km
2021 Ida Category 1 81 mph 290 km
2021 Grace Category 1 81 mph 45 km
2020 Delta Category 4 138 mph 193 km
2008 Paloma Category 4 144 mph 36 km
2008 Gustav Category 4 144 mph 53 km
2008 Ike Category 1 86 mph 257 km
2007 Dean Category 4 155 mph 173 km
2005 Emily Category 5 161 mph 174 km
2005 Wilma Category 5 184 mph 278 km
2005 Dennis Category 4 150 mph 243 km
2004 Ivan Category 5 167 mph 58 km
2004 Charley Category 2 104 mph 43 km
2003 Claudette Category 1 81 mph 270 km
2002 Lili Category 2 104 mph 107 km
2002 Isidore Category 2 104 mph 137 km
2001 Michelle Category 4 138 mph 222 km
2001 Iris Category 3 104 mph 230 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 77°F (25°C) 1.9 in Coldest
February 77°F (25°C) 1.5 in
March 78°F (26°C) 1.1 in Driest
April 80°F (27°C) 2.1 in
May 82°F (28°C) 5.4 in
June 83°F (28°C) 7.2 in
July 84°F (29°C) 6.9 in Warmest
August 83°F (29°C) 6.8 in
September 83°F (28°C) 8.0 in
October 82°F (28°C) 8.9 in Wettest
November 80°F (27°C) 4.0 in
December 78°F (25°C) 1.7 in

Gun Bay has a seasonal temperature swing of 7°F / from 77°F in January to 84°F in July. Total annual precipitation is 55.4 inches, with October being the wettest month (8.9") and March the driest (1.1").

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