Martin County Climate
Martin County, Florida
Avg Annual Temp
74.5°F
Annual Precip
63.4"
Annual Snowfall
0.0"
Extreme Heat Days
83.55
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Martin County Weather
Atlantic Coast Warmth Surpasses National Median
Martin County averages 74.5°F annually, nearly 21 degrees higher than the 54°F national median. This tropical Atlantic climate maintains warm temperatures throughout the entire year.
A Top-Tier Warmth Rank in Florida
The county's 74.5°F average is significantly higher than the Florida state average of 71.1°F. It ranks among the warmest coastal counties on the state's eastern side.
Cooler and Wetter Than Miami-Dade
Martin County is cooler than Miami-Dade, which averages 76.6°F, but it is wetter. Martin receives 63.4 inches of rain annually, compared to 62.0 inches in Miami-Dade.
Temperate Coastal Summers and Warm Winters
Despite the heat, Martin only sees 84 days above 90°F due to ocean breezes. Summers average 82.1°F and winters remain very warm at 66.0°F with no recorded snow.
Managing High Rainfall and Humidity
With 63.4 inches of rain annually, Martin is one of the wettest counties in the state. Residents should invest in high-quality rain gear and maintain home exteriors against high moisture levels.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.