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Weather & Climate in Sebastian, FL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sebastian has a warm climate with an average annual temperature of 74°F (24°C). Winters average 64°F in January while summers reach 83°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 56.4 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 22 feet.
Temperature
64°F Jan (18°C)
83°F Jul (28°C)
| Annual Average | 74.4°F |
| 38% above US avg | |
| January Average | 64°F (18°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 22 ft (7 m) |
| Area | 14.4 sq mi (37.3 km²) |
| Population Density | 1,480/sq mi |
| Coordinates | 27.7872°N, 80.4800°W |
| Timezone | America/New_York |
| County | Indian River County County |
| Nearest Airport | Vero Beach Regional (VRB) 8 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 95.6 / 100 |
| Social Vulnerability | 64.2 / 100 |
| Community Resilience | 60.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very High |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Very 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)
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 | 88 km |
| 2022 | Ian | Category 5 | 161 mph | 62 km |
| 2022 | Nicole | Category 1 | 75 mph | 27 km |
| 2021 | Elsa | Category 1 | 75 mph | 300 km |
| 2019 | Dorian | Category 5 | 178 mph | 160 km |
| 2017 | Irma | Category 3 | 115 mph | 144 km |
| 2016 | Matthew | Category 4 | 138 mph | 74 km |
| 2014 | Arthur | Category 1 | 75 mph | 286 km |
| 2005 | Wilma | Category 3 | 121 mph | 105 km |
| 2005 | Ophelia | Category 1 | 75 mph | 147 km |
| 2005 | Katrina | Category 1 | 86 mph | 196 km |
| 2004 | Charley | Category 4 | 150 mph | 115 km |
| 2004 | Jeanne | Category 3 | 121 mph | 56 km |
| 2004 | Frances | Category 2 | 109 mph | 48 km |
| 1999 | Floyd | Category 4 | 132 mph | 200 km |
| 1999 | Dennis | Category 2 | 104 mph | 278 km |
| 1999 | Irene | Category 1 | 81 mph | 37 km |
| 1995 | Erin | Category 1 | 86 mph | 13 km |
| 1992 | Andrew | Category 5 | 167 mph | 254 km |
| 1987 | Floyd | Category 1 | 75 mph | 299 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
328 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 12 fatalities, 219 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Oct 9, 2024 | EF3 | 46 km | 21.2 mi | 6 |
| Jan 24, 1979 | EF3 | 91 km | 9.6 mi | 0 |
| Jun 19, 1972 | EF3 | 76 km | 3.8 mi | 0 |
| Jun 19, 1972 | EF3 | 67 km | 4.9 mi | 0 |
| Mar 5, 1970 | EF3 | 98 km | 1.9 mi | 0 |
| Apr 15, 1958 | EF3 | 33 km | 14.8 mi | 0 |
| Sep 18, 1954 | EF3 | 43 km | 0.1 mi | 2 |
| Oct 9, 2024 | EF2 | 69 km | 8.5 mi | 0 |
| Oct 9, 2024 | EF2 | 84 km | 5.7 mi | 0 |
| Oct 9, 2024 | EF2 | 61 km | 2.6 mi | 0 |
| Apr 6, 2017 | EF2 | 42 km | 4.1 mi | 0 |
| Oct 24, 2005 | EF2 | 28 km | 0.3 mi | 0 |
| Nov 15, 1994 | EF2 | 11 km | 2.5 mi | 1 |
| Mar 24, 1983 | EF2 | 75 km | 18.0 mi | 0 |
| Mar 21, 1983 | EF2 | 69 km | 5.0 mi | 0 |
| Mar 7, 1983 | EF2 | 40 km | 5.0 mi | 0 |
| Feb 2, 1983 | EF2 | 65 km | 2.0 mi | 0 |
| Feb 2, 1983 | EF2 | 98 km | 1.0 mi | 1 |
| Sep 26, 1982 | EF2 | 71 km | 4.0 mi | 1 |
| Jun 17, 1982 | EF2 | 98 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: FROG LIGHT (20,174 acres, 2007).
| Year | Name | Acres Burned | Distance |
| 2007 | FROG LIGHT | 20,174 | 94 km |
| 2021 | KISSIMMEE BEND NORTH | 13,782 | 69 km |
| 2006 | UNNAMED | 12,050 | 79 km |
| 1992 | UNNAMED | 11,488 | 68 km |
| 2008 | UNNAMED | 11,294 | 26 km |
| 1996 | UNNAMED | 9,427 | 64 km |
| 1993 | UNNAMED | 9,422 | 98 km |
| 2024 | APQ RECREATION AREA RX 0506 | 8,901 | 66 km |
| 1998 | UNNAMED | 8,794 | 80 km |
| 2017 | ECHO SPRINGS | 8,640 | 78 km |
| 1984 | UNNAMED | 7,765 | 63 km |
| 2004 | UNNAMED | 7,670 | 81 km |
| 2021 | AREA 11 | 7,140 | 76 km |
| 2017 | NORTH CANE | 7,024 | 99 km |
| 1989 | UNNAMED | 6,985 | 54 km |
| 2011 | TRAIL 3 | 6,854 | 96 km |
| 2011 | UNNAMED | 6,616 | 49 km |
| 2008 | SAN FILIPPO | 6,376 | 17 km |
| 1994 | UNNAMED | 6,243 | 64 km |
| 1993 | UNNAMED | 6,236 | 54 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 64°F (18°C) | 2.4 in | |
| February | 63°F (17°C) | 2.9 in | Coldest |
| March | 68°F (20°C) | 3.2 in | |
| April | 71°F (22°C) | 2.1 in | |
| May | 76°F (25°C) | 4.2 in | |
| June | 80°F (27°C) | 6.2 in | |
| July | 83°F (28°C) | 5.7 in | Warmest |
| August | 82°F (28°C) | 5.9 in | |
| September | 81°F (27°C) | 7.4 in | Wettest |
| October | 76°F (25°C) | 5.0 in | |
| November | 70°F (21°C) | 2.9 in | |
| December | 65°F (18°C) | 2.0 in | Driest |
Sebastian has a seasonal temperature swing of 20°F / from 63°F in February to 83°F in July. Total annual precipitation is 50.0 inches, with September being the wettest month (7.4") and December the driest (2.0").