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Weather & Climate in St. Martin, MS
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
St. Martin enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 52°F in January while summers reach 82°F in July. The area gets 313 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 61.7 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 43. The city sits at an elevation of 10 feet.
Temperature
52°F Jan (11°C)
82°F Jul (28°C)
| Annual Average | 67.8°F |
| 26% above US avg | |
| January Average | 52°F (11°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 313 days/yr |
Geography
| Elevation | 10 ft (3 m) |
| Area | 5.1 sq mi (13.2 km²) |
| Population Density | 1,817/sq mi |
| Coordinates | 30.4381°N, 88.8617°W |
| Timezone | America/Chicago |
| County | Jackson County County |
| Nearest Airport | Gulfport-Biloxi International (GPT) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 43.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 92.3 / 100 |
| Social Vulnerability | 52.4 / 100 |
| Community Resilience | 86.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
| Coastal Flood | Relatively High |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
4 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.5.
| Feb 18, 2011 | 22 km SSE of Dauphin Island, Alabama | M3.5 | 92 km | 5 km |
| Sep 30, 2003 | 10 km NNW of Atmore, Alabama | M3.3 | 149 km | 5 km |
| Oct 18, 1997 | 69 km SSW of Dauphin Island, Alabama | M2.9 | 99 km | 1 km |
| Nov 10, 2012 | 16 km S of Dauphin Island, Alabama | M2.6 | 82 km | 11 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
23 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Francine | Category 2 | 104 mph | 217 km |
| 2021 | Ida | Category 4 | 150 mph | 178 km |
| 2020 | Zeta | Category 3 | 115 mph | 103 km |
| 2020 | Sally | Category 2 | 109 mph | 110 km |
| 2018 | Michael | Category 4 | 144 mph | 295 km |
| 2017 | Nate | Category 1 | 86 mph | 14 km |
| 2012 | Isaac | Category 1 | 81 mph | 179 km |
| 2009 | Ida | Category 1 | 86 mph | 216 km |
| 2008 | Gustav | Category 2 | 109 mph | 225 km |
| 2005 | Katrina | Category 4 | 144 mph | 73 km |
| 2005 | Dennis | Category 4 | 138 mph | 155 km |
| 2005 | Cindy | Category 1 | 75 mph | 182 km |
| 2004 | Ivan | Category 4 | 132 mph | 96 km |
| 1998 | Georges | Category 2 | 109 mph | 6 km |
| 1998 | Earl | Category 2 | 98 mph | 215 km |
| 1997 | Danny | Category 1 | 81 mph | 78 km |
| 1995 | Opal | Category 4 | 127 mph | 158 km |
| 1995 | Erin | Category 2 | 98 mph | 132 km |
| 1992 | Andrew | Category 4 | 144 mph | 267 km |
| 1988 | Florence | Category 1 | 81 mph | 137 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tornado History
545 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 17 fatalities, 322 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Dec 25, 2012 | EF3 | 82 km | 60.3 mi | 0 |
| Apr 15, 2011 | EF3 | 80 km | 18.3 mi | 4 |
| Nov 21, 1997 | EF3 | 87 km | 1.0 mi | 0 |
| Mar 20, 1983 | EF3 | 84 km | 1.0 mi | 0 |
| Apr 25, 1982 | EF3 | 73 km | 1.5 mi | 0 |
| May 19, 1980 | EF3 | 31 km | 10.6 mi | 0 |
| May 19, 1980 | EF3 | 55 km | 4.3 mi | 0 |
| May 19, 1980 | EF3 | 61 km | 13.1 mi | 0 |
| May 16, 1980 | EF3 | 29 km | 11.5 mi | 0 |
| Apr 13, 1980 | EF3 | 24 km | 15.9 mi | 0 |
| Mar 27, 1976 | EF3 | 62 km | 13.9 mi | 0 |
| Nov 3, 1968 | EF3 | 80 km | 70.4 mi | 0 |
| Nov 3, 1968 | EF3 | 22 km | 2.0 mi | 0 |
| Oct 30, 1967 | EF3 | 22 km | 2.0 mi | 4 |
| Apr 18, 1966 | EF3 | 4 km | 23.8 mi | 0 |
| Feb 26, 1958 | EF3 | 99 km | 29.1 mi | 4 |
| Apr 18, 1950 | EF3 | 68 km | 14.0 mi | 0 |
| Apr 10, 2024 | EF2 | 94 km | 11.0 mi | 0 |
| Jun 19, 2023 | EF2 | 28 km | 2.4 mi | 0 |
| Jan 12, 2023 | EF2 | 90 km | 11.7 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: WHITE DOG (12,306 acres, 2005).
| Year | Name | Acres Burned | Distance |
| 2005 | WHITE DOG | 12,306 | 80 km |
| 2008 | UNNAMED | 10,363 | 57 km |
| 2013 | UNNAMED | 10,170 | 65 km |
| 2014 | UNNAMED | 9,932 | 79 km |
| 2010 | DESOTO 0902 | 8,713 | 62 km |
| 2013 | UNNAMED | 7,660 | 23 km |
| 2010 | DESOTO 1057 | 7,148 | 26 km |
| 2015 | UNNAMED | 7,059 | 63 km |
| 2014 | UNNAMED | 6,802 | 62 km |
| 1993 | UNNAMED | 6,744 | 54 km |
| 2005 | UNNAMED | 6,712 | 78 km |
| 2000 | COW PEN | 6,502 | 80 km |
| 2010 | CRIPPLE CHINOOK | 6,035 | 78 km |
| 2005 | UNNAMED | 5,819 | 83 km |
| 2018 | UNNAMED | 5,803 | 67 km |
| 2010 | DESOTO 1064 | 5,695 | 20 km |
| 2008 | UNNAMED | 5,657 | 74 km |
| 1987 | MACHINE GUN | 5,601 | 78 km |
| 1990 | PIERCES CREEK | 5,544 | 78 km |
| 2020 | 369 D | 5,362 | 82 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 52°F (11°C) | 5.4 in | Coldest |
| February | 54°F (12°C) | 5.8 in | |
| March | 60°F (16°C) | 5.6 in | |
| April | 67°F (19°C) | 4.6 in | |
| May | 74°F (23°C) | 5.1 in | |
| June | 80°F (27°C) | 5.1 in | |
| July | 82°F (28°C) | 6.6 in | Warmest |
| August | 82°F (28°C) | 6.9 in | Wettest |
| September | 78°F (26°C) | 5.8 in | |
| October | 69°F (21°C) | 3.4 in | Driest |
| November | 60°F (16°C) | 4.2 in | |
| December | 54°F (12°C) | 5.2 in |
St. Martin has a seasonal temperature swing of 30°F / from 52°F in January to 82°F in July. Total annual precipitation is 63.5 inches, with August being the wettest month (6.9") and October the driest (3.4").