Marco Island, FL Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Marco Island's primary NOAA station, MARCO IS.
The climate verdict for Marco Island
Warm-season cooling demand defines Marco Island, Florida, running at more than twice its heating total. The NOAA normal records an annual average of 75°F. August is the warmest month at 84°F and January the coldest at 64°F.
- 75°F
- yearly average temperature, NOAA normal
- 53.3"
- yearly precipitation total
Marco Island: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00085359 · Marco Island, FL 75°F mean · 53.3" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-WET · SWING-NARROW · COMF-UNK · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 75°F
- RANK-WARM #6,792
- PHOTO-FINISH ≈ Fort Myers Page…
- PRCP-WET 53.3"
- SWING-NARROW 19°F
- COMF-UNK Comfort n/a
- LOAD-COOL 4,057 CDD
- STN-1 USC00085359
- BOOK-FULL 5/6 fields
Nearest mean-temperature peer: Fort Myers Page Fld, FL (+ 0.1 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every FL station list.
- Hot Everglades City, FL 76°F
- Near Naples, FL 76°F
- Marco Island (this station) 75°F
- Cold Fort Myers SW F…, FL 75°F
- Near Fort Myers Page…, FL 75°F
Marco Island sits in Florida, the #1 hottest U.S. state at 72.6°F statewide annual average - see all 50 hottest states ranked by NOAA normals
Climate Living Index · Marco Island
Marco Island: 67/100 · grade C
Marco Island publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Marco Island, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 96 calendar days | 77/100 · B |
| Annual temperature balance | 75.3°F · 7.8° from 67.5°F | 75/100 · B |
| Precipitation balance | 53.3 in · 18.3 from 35 in | 35/100 · F |
Marco Island · 2026-08-04 · NOAA NCEI Climate Normals · method .
Marco Island stays in the tropical Köppen band: Aw
Year-round heat with a pronounced dry season: tropical savanna (Aw). Class Aw is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: tropical, specifically tropical savanna.
- Köppen code
- Aw
- Group
- Tropical
- Warmest month
- 83.8°F
- Coldest month
- 64.4°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · cooling-led station
Where Marco Island sits across the climate record
Three NOAA fields for Marco Island's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 1% warmest
- Among 6,861 stations, Marco Island sits in the warmer third of annual means.
- Annual precipitation
- Top 13% wettest
- Marco Island's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 97%
- Warmest-to-coldest month gap for Marco Island is compact versus 6,861 complete station-years.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 74°F (23°C) | 55°F (13°C) | 64°F (18°C) | 2.5" | 0.3 | 0.0 |
| February | 76°F (25°C) | 57°F (14°C) | 67°F (19°C) | 1.9" | 0.1 | 0.0 |
| March | 79°F (26°C) | 60°F (16°C) | 69°F (21°C) | 2.0" | 0.0 | 0.0 |
| April | 83°F (28°C) | 65°F (18°C) | 74°F (23°C) | 2.5" | 0.0 | 0.9 |
| May | 88°F (31°C) | 70°F (21°C) | 79°F (26°C) | 3.4" | 0.0 | 5.3 |
| June | 90°F (32°C) | 74°F (23°C) | 82°F (28°C) | 8.4" | 0.0 | 14.2 |
| July | 91°F (33°C) | 76°F (24°C) | 84°F (29°C) | 6.6" | 0.0 | 19.0 |
| August | 92°F (33°C) | 76°F (25°C) | 84°F (29°C) | 9.2" | 0.0 | 20.2 |
| September | 90°F (32°C) | 75°F (24°C) | 83°F (28°C) | 9.9" | 0.0 | 15.1 |
| October | 87°F (31°C) | 71°F (22°C) | 79°F (26°C) | 3.2" | 0.0 | 5.9 |
| November | 81°F (27°C) | 63°F (17°C) | 72°F (22°C) | 2.0" | 0.0 | 0.4 |
| December | 77°F (25°C) | 59°F (15°C) | 68°F (20°C) | 1.7" | 0.3 | 0.0 |
The year, day by day
The year in Marco Island runs from a mild 54°F around January 17 to 92°F at the peak near August 8, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 12 through September 15, covering 96 dates. The broader mild season, normal highs of 70°F or more, runs January 1 to December 31.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 54°F around January 17.
Where the wet dates fall
The likeliest wet date is August 26, when 63% of years recorded at least a hundredth of an inch. The driest is March 7 at 14%. Summed across the calendar, that is about 115 wet dates a year.
The widest day
March 1 carries the biggest normal gap between afternoon and dawn, 19°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Marco Island.
Where Marco Island Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 96 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 19°F.
Marco Island earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
5.3 days with precipitation
4.7 days with precipitation
4.3 days with precipitation
5.0 days with precipitation
8.7 days with precipitation
15.9 days with precipitation
15.8 days with precipitation
18.8 days with precipitation
17.5 days with precipitation
8.6 days with precipitation
5.4 days with precipitation
5.1 days with precipitation
Marco Island runs a summer-peaked wet season
45% of Marco Island's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is September at 9.9", on an unusually narrow 19.4°F seasonal spread. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: September, August, June, taking 51% of the annual total between them.
- Driest month: December at 1.7".
- Winter share: 11% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
When it rains in Marco Island, it arrives in quantity
53.3" of precipitation falls across only about 115 wet days here, averaging 0.46 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 115 a year, 32% of all days
- Average depth per wet day
- 0.46 inches
- Most wet days
- August, about 19
- Fewest wet days
- March, about 4
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Frost Dates & Growing Season
First Fall Freeze
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
281
Higher = more heating needed
Cooling Degree Days
4,057
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside FL closest to Marco Island on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (75°F here).
- Mcallen, TX 76°F · 0.2°F off
- Palm Springs, CA 75°F · 0.2°F off
- Harlingen, TX 76°F · 0.3°F off
- Phoenix, AZ 76°F · 0.3°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (53.3" here), excluding temperature-peer places.
- Brandenburg, KY 53.3" · 0.0" off
- Elizabethtown, NC 53.3" · 0.0" off
- Somerset, KY 53.3" · 0.0" off
- Laporte, PA 53.3" · 0.0" off
Data-derived climate profile
How Marco Island's climate pattern fits together
cooling led · wet · low swing
Warm-season load persists through a relatively even calendar in Marco Island. Cooling totals 4,057 degree days, more than double the 281 heating measure, and the 19.4°F seasonal range is compact rather than sharply divided.
Warm-season demand is paired with a wet annual normal: 53.3 inches of precipitation at Marco Island. Snowfall is not added to the interpretation because its annual value is missing. The month-by-month bars distinguish a concentrated wet season from moisture spread across the calendar.
Marco Island's 19.4°F seasonal spread is compact even though precipitation is abundant. August and January mark the typical warm and cold ends of the calendar. The annual average is 75°F. Temperature is relatively steady; the monthly rows show how rain and snow observations vary across the calendar.
A frost-free growing-season length is not available for Marco Island. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
These labels group NOAA 1991-2020 normals from Marco Island's primary station, so the summer figures are a thirty-year average rather than a ceiling: individual years have run hotter and will again. For Marco Island that means a descriptive range only — not an official NOAA classification and not a prediction for next summer.
Questions about Marco Island's climate
How much rain does Marco Island get? ▼
How many days above 90°F does Marco Island get? ▼
How much energy does heating and cooling require in Marco Island? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Marco Island's primary station: MARCO IS (USC00085359). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 1243083). Match rule for Marco Island: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Marco Island comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.