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Weather & Climate in Jupiter Island, FL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Jupiter Island has a warm climate with an average annual temperature of 74°F (23°C). Winters average 64°F in January while summers reach 82°F in July / relatively mild seasonal variation. The area gets 330 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 64.2 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 7 feet.
Temperature
64°F Jan (18°C)
82°F Jul (28°C)
| Annual Average | 73.7°F |
| 36% above US avg | |
| January Average | 64°F (18°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 7 ft (2 m) |
| Area | 3.6 sq mi (9.2 km²) |
| Population Density | 321/sq mi |
| Coordinates | 27.0269°N, 80.1019°W |
| Timezone | America/New_York |
| County | Martin County County |
| Nearest Airport | Palm Beach International (PBI) 24 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 94.1 / 100 |
| Social Vulnerability | 69.0 / 100 |
| Community Resilience | 47.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very High |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | No Rating |
| Lightning | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
1 earthquake (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.2.
| Feb 22, 1992 | 27 km SW of Freeport, Bahamas | M3.2 | 142 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
20 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 5.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Milton | Category 3 | 121 mph | 168 km |
| 2022 | Ian | Category 5 | 161 mph | 124 km |
| 2022 | Nicole | Category 1 | 75 mph | 43 km |
| 2019 | Dorian | Category 5 | 184 mph | 159 km |
| 2017 | Irma | Category 4 | 132 mph | 161 km |
| 2016 | Matthew | Category 4 | 138 mph | 72 km |
| 2012 | Sandy | Category 1 | 75 mph | 288 km |
| 2011 | Irene | Category 2 | 104 mph | 278 km |
| 2005 | Wilma | Category 3 | 127 mph | 20 km |
| 2005 | Katrina | Category 2 | 98 mph | 105 km |
| 2005 | Ophelia | Category 1 | 75 mph | 192 km |
| 2004 | Charley | Category 4 | 150 mph | 190 km |
| 2004 | Jeanne | Category 3 | 121 mph | 22 km |
| 2004 | Frances | Category 2 | 109 mph | 22 km |
| 1999 | Floyd | Category 4 | 132 mph | 205 km |
| 1999 | Dennis | Category 2 | 104 mph | 276 km |
| 1999 | Irene | Category 1 | 81 mph | 10 km |
| 1995 | Erin | Category 1 | 86 mph | 46 km |
| 1992 | Andrew | Category 5 | 167 mph | 170 km |
| 1987 | Floyd | Category 1 | 75 mph | 218 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
419 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 12 fatalities, 230 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Oct 9, 2024 | EF3 | 94 km | 15.5 mi | 0 |
| Oct 9, 2024 | EF3 | 50 km | 21.2 mi | 6 |
| Oct 9, 2024 | EF3 | 57 km | 32.9 mi | 0 |
| Mar 1, 1980 | EF3 | 96 km | 7.8 mi | 1 |
| Jan 24, 1979 | EF3 | 50 km | 9.6 mi | 0 |
| Oct 19, 1958 | EF3 | 61 km | 20.2 mi | 1 |
| Apr 15, 1958 | EF3 | 70 km | 14.8 mi | 0 |
| Sep 18, 1954 | EF3 | 49 km | 0.1 mi | 2 |
| Oct 9, 2024 | EF2 | 82 km | 8.5 mi | 0 |
| Oct 9, 2024 | EF2 | 11 km | 5.7 mi | 0 |
| Oct 9, 2024 | EF2 | 96 km | 2.6 mi | 0 |
| Oct 9, 2024 | EF2 | 51 km | 65.5 mi | 0 |
| Apr 29, 2023 | EF2 | 23 km | 2.6 mi | 0 |
| Sep 27, 2022 | EF2 | 73 km | 7.0 mi | 0 |
| Apr 6, 2017 | EF2 | 95 km | 4.1 mi | 0 |
| Aug 18, 2008 | EF2 | 47 km | 2.7 mi | 0 |
| Aug 8, 1983 | EF2 | 36 km | 0.3 mi | 0 |
| Mar 21, 1983 | EF2 | 76 km | 5.0 mi | 0 |
| Feb 2, 1983 | EF2 | 28 km | 2.0 mi | 0 |
| Sep 26, 1982 | EF2 | 100 km | 4.0 mi | 1 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: ALLIGATOR (50,667 acres, 2014).
| Year | Name | Acres Burned | Distance |
| 2014 | ALLIGATOR | 50,667 | 97 km |
| 1989 | UNNAMED | 49,716 | 59 km |
| 2007 | MOONSHINE BAY | 38,664 | 95 km |
| 2008 | MYAKKA CUT | 36,877 | 95 km |
| 1985 | UNNAMED | 35,018 | 99 km |
| 2021 | BOBCAT | 28,849 | 95 km |
| 2007 | FROG LIGHT | 20,174 | 84 km |
| 1989 | UNNAMED | 19,103 | 95 km |
| 1984 | UNNAMED | 17,967 | 78 km |
| 1990 | UNNAMED | 16,253 | 98 km |
| 1989 | UNNAMED | 16,000 | 98 km |
| 2007 | APRILS FOOLS | 13,275 | 97 km |
| 1996 | UNNAMED | 11,797 | 99 km |
| 2008 | UNNAMED | 11,294 | 95 km |
| 1994 | UNNAMED | 11,268 | 76 km |
| 2018 | G-205 (50) | 10,761 | 94 km |
| 2001 | UNNAMED | 9,723 | 93 km |
| 2008 | UNNAMED | 9,670 | 33 km |
| 2012 | WEST HOLEY LANDS | 9,100 | 96 km |
| 2008 | LOXBURN12 | 7,929 | 68 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 64°F (18°C) | 2.5 in | Coldest |
| February | 65°F (19°C) | 2.8 in | |
| March | 69°F (21°C) | 3.7 in | |
| April | 73°F (23°C) | 2.4 in | |
| May | 77°F (25°C) | 5.4 in | |
| June | 80°F (27°C) | 6.9 in | |
| July | 82°F (28°C) | 6.3 in | |
| August | 82°F (28°C) | 6.1 in | Warmest |
| September | 81°F (27°C) | 7.9 in | Wettest |
| October | 77°F (25°C) | 5.9 in | |
| November | 72°F (22°C) | 3.5 in | |
| December | 67°F (19°C) | 2.3 in | Driest |
Jupiter Island has a seasonal temperature swing of 18°F / from 64°F in January to 82°F in August. Total annual precipitation is 55.7 inches, with September being the wettest month (7.9") and December the driest (2.3").