Capt. John Foley Horr House · Photo: Cristoph3r · CC BY-SA 3.0Marco Island sits near the top of U.S. towns for mild winters
Peak summer warmth arrives in July, with afternoons near 91°. The wettest month is August; the driest is November. It is a wet place: more rain and snow fall here than on 93% of U.S. towns. Comfortable outdoor weather lasts from November to March, with highs of 76–82°.
A year in Marco Island at a glance
Each month’s typical high and low, and what it brings.
What stands out about Marco Island’s climate
Compared with towns across the U.S., with Marco Island’s place in Florida beside it.
What a year in Marco Island feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Frost is rare
Frost and day counts come from NOAA’s station at Marco Is, FL, 1.3 miles from the town’s center, at about the same height.
The 2023 USDA map puts Marco Island’s center in zone 10b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 37°. Plant labels use the zone; frost dates tell you when to plant.
90° days by month
Average days at 90° or more
About 54 inches of rain a year
August is the wettest month and November the driest. Rain falls on about 107 days a year. Snow is rare: about 0.0" in a normal year at Naples Muni Airport, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Marco Island
6% of the work is heating, so air conditioning is the bigger bill. No month averages under 55°.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Marco Is, FL.
Living with Marco Island’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 10b. Frost comes about 1 winter in 27, so tender plants can often stay out through winter.
Months with highs of 62–84° and lows of 40° or more: January, February, March, November and December. 3.1 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Marco Island from natural hazards, hurricanes are the largest share (82%); heat waves, cold waves, winter storms and ice storms together are 2%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Marco Island and similar climates
TownRatings has no climate map of the towns around Marco Island yet.
Climates most like Marco Island’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Marco Island, FL | 56° | 91° | 54" | 0.0" |
| Galveston, TX | 48° | 89° | 52" | 0.1" |
| Galliano, LA | 46° | 90° | 63" | 0.0" |
| St. Marys, GA | 43° | 91° | 51" | 0.0" |
| Gulf Shores, AL | 44° | 90° | 62" | 0.0" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Marco Island averaged 1.4° warmer than the 1900s. The biggest change is in February (+2.3°).
A bigger shift than in 54% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Marco Island compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Marco Island’s place among Florida’s.
Marco Island weather by month
Highs, lows and precipitation from NOAA’s grid at Marco Island’s center; snow, wet days and snow on the ground from Naples Muni Airport. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 76° | 56° | 2.2" | 0.0" | 5 | 0 | 60° – 71° |
| February | 78° | 59° | 1.9" | 0.0" | 4 | 0 | 61° – 74° |
| March | 80° | 62° | 2.0" | 0.0" | 4 | 0 | 64° – 78° |
| April | 84° | 66° | 2.5" | 0.0" | 6 | 0 | 72° – 79° |
| May | 88° | 71° | 3.9" | 0.0" | 8 | 0 | 76° – 82° |
| June | 90° | 75° | 9.0" | 0.0" | 15 | 0 | 81° – 86° |
| July | 91° | 77° | 7.7" | 0.0" | 16 | 0 | 82° – 86° |
| August | 91° | 77° | 9.2" | 0.0" | 19 | 0 | 82° – 85° |
| September | 90° | 76° | 8.4" | 0.0" | 16 | 0 | 81° – 84° |
| October | 87° | 72° | 4.0" | 0.0" | 6 | 0 | 76° – 82° |
| November | 82° | 65° | 1.7" | 0.0" | 4 | 0 | 69° – 78° |
| December | 78° | 60° | 1.9" | 0.0" | 5 | 0 | 58° – 76° |
| Year | 85° | 68° | 54.3" | 0.0" | 107 | 0 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 58° to 76°. August is the most reliable, staying within 3°.
Where Marco Island’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Marco Island’s center.
- Snow: Naples Muni Airport.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Marco Is, FL, 1.3 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Marco Island’s climate
What is the weather like in Marco Island?
A typical July afternoon reaches 91°, a January night drops to 56°, and snow is almost unheard of. Milder January nights than all but 174 U.S. towns; hotter July afternoons than 83% of U.S. towns.
How cold does it get in Marco Island in winter?
January nights average 56°. A night at 32° or below comes in only some winters (0.7 a year on average). In the coldest January of the last 30 years the month averaged 60°.
How much snow does Marco Island get?
About 0.0 inches in a normal winter at Naples Muni Airport, so most winters see none.
How hot does it get in Marco Island?
July, with a typical high of 91° and a low of 77°. About 81 days a year reach 90° (Marco Is, FL).
When is the first and last frost in Marco Island?
Most years have no frost at all: a 32° night comes in about 4% of winters at Marco Is, FL, usually in December or January.
What growing zone is Marco Island in?
Zone 10b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 37°.
What is the best time of year to visit Marco Island?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Marco Island getting warmer?
Yes: 1991–2020 averaged 1.4° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 54% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Marco Island.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.