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Weather & Climate in St. Augustine South, FL
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
St. Augustine South has a warm climate with an average annual temperature of 71°F (22°C). Winters average 58°F in January while summers reach 82°F in July. The area gets 314 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 50.6 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 26 feet.
Temperature
58°F Jan (14°C)
82°F Jul (28°C)
| Annual Average | 71.2°F |
| 32% above US avg | |
| January Average | 58°F (14°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 314 days/yr |
Geography
| Elevation | 26 ft (8 m) |
| Area | 1.6 sq mi (4.1 km²) |
| Population Density | 3,059/sq mi |
| Coordinates | 29.8448°N, 81.3162°W |
| Timezone | America/New_York |
| County | St. Johns County County |
| Nearest Airport | Northeast Florida Regional (UST) 8 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 87.5 / 100 |
| Social Vulnerability | 11.4 / 100 |
| Community Resilience | 96.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | No Rating |
| Lightning | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Hurricane History
25 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Helene | Category 4 | 138 mph | 230 km |
| 2024 | Milton | Category 3 | 121 mph | 165 km |
| 2024 | Debby | Category 1 | 81 mph | 201 km |
| 2023 | Idalia | Category 4 | 132 mph | 185 km |
| 2022 | Ian | Category 3 | 115 mph | 158 km |
| 2022 | Nicole | Category 1 | 75 mph | 269 km |
| 2020 | Isaias | Category 1 | 75 mph | 216 km |
| 2019 | Dorian | Category 3 | 115 mph | 156 km |
| 2017 | Irma | Category 1 | 75 mph | 202 km |
| 2016 | Matthew | Category 4 | 127 mph | 62 km |
| 2016 | Hermine | Category 1 | 81 mph | 263 km |
| 2014 | Arthur | Category 1 | 92 mph | 206 km |
| 2005 | Ophelia | Category 1 | 75 mph | 240 km |
| 2004 | Jeanne | Category 3 | 121 mph | 216 km |
| 2004 | Frances | Category 2 | 104 mph | 250 km |
| 2004 | Charley | Category 1 | 86 mph | 57 km |
| 1999 | Floyd | Category 3 | 127 mph | 214 km |
| 1999 | Dennis | Category 2 | 104 mph | 276 km |
| 1999 | Irene | Category 1 | 81 mph | 146 km |
| 1996 | Bertha | Category 2 | 98 mph | 295 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
399 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 4 fatalities, 149 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Nov 1, 1997 | EF3 | 99 km | 3.0 mi | 0 |
| Feb 7, 1971 | EF3 | 23 km | 13.1 mi | 0 |
| Apr 15, 1958 | EF3 | 3 km | 3.6 mi | 0 |
| Oct 12, 2023 | EF2 | 31 km | 1.0 mi | 0 |
| Aug 18, 2020 | EF2 | 90 km | 4.6 mi | 0 |
| Sep 10, 2017 | EF2 | 16 km | 1.2 mi | 0 |
| Dec 25, 2006 | EF2 | 78 km | 2.7 mi | 0 |
| Dec 25, 2006 | EF2 | 91 km | 2.8 mi | 0 |
| Aug 12, 2004 | EF2 | 84 km | 7.0 mi | 0 |
| Mar 29, 2001 | EF2 | 42 km | 12.0 mi | 0 |
| Feb 22, 1998 | EF2 | 78 km | 8.0 mi | 1 |
| Feb 2, 1996 | EF2 | 66 km | 6.0 mi | 0 |
| Apr 24, 1995 | EF2 | 45 km | 10.0 mi | 0 |
| Mar 14, 1986 | EF2 | 99 km | 2.0 mi | 0 |
| Feb 27, 1984 | EF2 | 68 km | 3.0 mi | 0 |
| Nov 20, 1983 | EF2 | 68 km | 3.0 mi | 0 |
| Nov 20, 1983 | EF2 | 45 km | 3.0 mi | 0 |
| Feb 2, 1983 | EF2 | 99 km | 0.3 mi | 0 |
| Sep 3, 1979 | EF2 | 78 km | 0.1 mi | 0 |
| Sep 3, 1979 | EF2 | 86 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (121,213 acres, 1998).
| Year | Name | Acres Burned | Distance |
| 1998 | UNNAMED | 121,213 | 73 km |
| 1998 | UNNAMED | 24,956 | 28 km |
| 1985 | UNNAMED | 19,129 | 71 km |
| 1998 | UNNAMED | 13,873 | 95 km |
| 2007 | UNNAMED | 13,806 | 78 km |
| 2006 | JUNIPER | 11,998 | 78 km |
| 1985 | UNNAMED | 9,807 | 37 km |
| 1998 | UNNAMED | 9,705 | 79 km |
| 1985 | UNNAMED | 9,554 | 48 km |
| 2009 | JUNIPER SPRINGS | 8,363 | 78 km |
| 1998 | UNNAMED | 7,345 | 11 km |
| 1998 | UNNAMED | 7,078 | 88 km |
| 2011 | SANTE FE | 6,497 | 75 km |
| 2007 | UNNAMED | 6,345 | 62 km |
| 2011 | ESPANOLA FIRE | 5,468 | 35 km |
| 2012 | UNNAMED | 5,431 | 97 km |
| 1991 | UNNAMED | 4,948 | 39 km |
| 1998 | UNNAMED | 4,907 | 74 km |
| 2010 | UNNAMED | 4,864 | 62 km |
| 2019 | C236/238/239/305 BOWERS ALEX SPRINGS N | 4,561 | 87 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 58°F (14°C) | 3.2 in | Coldest |
| February | 58°F (14°C) | 3.6 in | |
| March | 63°F (17°C) | 3.7 in | |
| April | 68°F (20°C) | 2.4 in | |
| May | 75°F (24°C) | 3.5 in | |
| June | 79°F (26°C) | 5.8 in | |
| July | 82°F (28°C) | 5.6 in | Warmest |
| August | 81°F (27°C) | 6.3 in | |
| September | 79°F (26°C) | 6.4 in | Wettest |
| October | 72°F (22°C) | 3.6 in | |
| November | 65°F (18°C) | 2.4 in | Driest |
| December | 59°F (15°C) | 2.9 in |
St. Augustine South has a seasonal temperature swing of 25°F / from 58°F in January to 82°F in July. Total annual precipitation is 49.2 inches, with September being the wettest month (6.4") and November the driest (2.4").