Marco Island in Fall
In fall (September, October and November), Marco Island sees average daytime highs around 82°F and overnight lows near 73°F, with 10.4 in of rain over about 33 wet days across the season. It is the 2nd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 86°F in early September to 76°F by late November. The sky is clear or mostly clear about 41% of the time across fall, and the air most often feels oppressive.
Fall is Marco Island's 3rd-best season to visit on our travel score. For the whole year in context, see Marco Island's year-round climate.
- Avg daytime high
- 82°F
- 2nd-warmest season
- Avg overnight low
- 73°F
- Rainfall
- 10.4 in
- 33 wet days
- Avg wind
- 9 mph
- Travel score
- 6.0
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Marco Island in Fall
Over the season highs ease from about 86°F in early September to 76°F by late November.
A typical fall day in Marco Island reaches about 82°F and drops to 73°F overnight. The warmest of the three months is September, the coolest November.
How fall really feels in Marco Island
Once humidity and wind are folded in, fall brings about 38 days that feel above 90°F and 0 that feel at or below 32°F.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Marco Island weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 72° / 61° | 1.5 | 5 | 10.6 | 7.7 |
| Feb | 73° / 62° | 1.1 | 3.9 | 11.1 | 8.1 |
| Mar | 76° / 65° | 1.3 | 4.2 | 11.8 | 8.2 |
| Apr | 80° / 69° | 1.6 | 5.5 | 12.6 | 7.6 |
| May | 84° / 74° | 2.7 | 9.1 | 13.3 | 6.0 |
| Jun | 86° / 78° | 5.9 | 19.4 | 13.6 | 4.0 |
| Jul | 87° / 79° | 5.0 | 20.8 | 13.5 | 3.6 |
| Aug | 87° / 79° | 5.5 | 21.6 | 12.9 | 3.5 |
| Sep | 86° / 78° | 5.9 | 19.7 | 12.2 | 3.9 |
| Oct | 83° / 74° | 3.1 | 9.1 | 11.4 | 6.1 |
| Nov | 78° / 68° | 1.3 | 3.8 | 10.7 | 8.0 |
| Dec | 74° / 64° | 1.1 | 4 | 10.4 | 8.1 |
Cloud cover in Fall
The sky is clear or mostly clear about 41% of the time across fall.
Chance of precipitation in Fall
Marco Island gets around 10.4 in of rain over 33 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 9 mph across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 30 min in early September to 10 h 30 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.6 kWh/m².
Hazard calendar for Marco Island
In fall, Marco Island overlaps its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.
Marco Island sits in the Atlantic hurricane belt; the season peaks August–October.
Marco Island's rainy season runs May–October, when most of the year's rain falls.
Is fall a good time to visit Marco Island?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Marco Island for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Marco Island in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Marco Island sees daytime highs around 82°F and nights near 73°F. Pack light clothes and rain gear. Worth having: sun protection. About 33 days see rain.
Sea temperature near Marco Island in Fall
The nearest coast averages about 81°F across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 86°F and coldest in January near 69°F.
The water stays above 68°F all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 69 | 69 | 72 | 76 | 81 | 84 | 86 | 86 | 85 | 82 | 76 | 72 |
| Comfort | Refreshing | Refreshing | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Warm | Refreshing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 69 | Refreshing |
| Feb | 69 | Refreshing |
| Mar | 72 | Refreshing |
| Apr | 76 | Warm |
| May | 81 | Warm |
| Jun | 84 | Tropical |
| Jul | 86 | Tropical |
| Aug | 86 | Tropical |
| Sep | 85 | Tropical |
| Oct | 82 | Warm |
| Nov | 76 | Warm |
| Dec | 72 | Refreshing |
UV index in Marco Island in Fall
Clear-sky midday UV across fall averages around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Marco Island peaks around July 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 5 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 5 | 7 | 9 | 10 | 10 | 11 | 12 | 11 | 10 | 8 | 6 | 5 |
| Level | High | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Very high | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 5 | High |
| Feb | 7 | Very high |
| Mar | 9 | Very high |
| Apr | 10 | Very high |
| May | 10 | Extreme |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 10 | Very high |
| Oct | 8 | Very high |
| Nov | 6 | High |
| Dec | 5 | Moderate |
Air quality in Marco Island in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Marco Island is worst in July — around 20 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 7 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 9 | 12 | 10 | 11 | 15 | 20 | 17 | 12 | 9 | 8 | 7 |
| Level | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 9 | Good |
| Mar | 12 | Good |
| Apr | 10 | Good |
| May | 11 | Good |
| Jun | 15 | Moderate |
| Jul | 20 | Moderate |
| Aug | 17 | Moderate |
| Sep | 12 | Moderate |
| Oct | 9 | Good |
| Nov | 8 | Good |
| Dec | 7 | Good |
Where is Marco Island?
Marco Island sits at 25.9°N, 81.7°W, 3 ft above sea level, in United States. The nearest listed city is East Naples, 14 mi away.
Topography around Marco Island
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Marco Island.
Within 2 miles, the terrain around Marco Island has only modest variations in elevation — a maximum elevation change of 43 ft around an average of 7 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 62 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 98 ft.
The land around Marco Island is covered by water (44%) and artificial surfaces (42%) within 2 miles, water (64%) and mangroves (20%) within 10 miles, and water (44%) and trees (21%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Marco Island (25.9412°, -81.7184°, elevation 3 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.