Marco Island weather in October

In October, Marco Island sees average daytime highs of 83°F and overnight lows near 74°F, with 3.1 in of rain across 9.1 wet days and about 11.4 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 85°F in the first days to 81°F by the end. The sky is clear or mostly clear about 45% of the time in October, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of October to 11 hours by month's end. Set against the rest of the year, October is Marco Island's 8th-clearest and 4th-windiest month. For the whole year in context, see Marco Island's year-round climate.

Daytime high
83°
6th warmest
Overnight low
74°
8th coldest
Rainfall
3.1 in
9.1 wet days
Daylight
11 h 24 min
6:31 AM – 5:53 PM
Cloud cover
51%
8th clearest
Wind
9 mph
4th windiest
Solar energy
4.65 kWh/m²
Travel score
6.1
out of 10

Marco Island is city in Collier County, Florida, United States.

Founded
1886

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 85°F in the first days to 81°F by the end.

A typical October day in Marco Island reaches about 83°F in the afternoon and slips back to 74°F overnight — a 9°F spread between the day's warmth and the night's chill. On most days the high lands between 79°F and 87°F. Set against its neighbours, October runs about 3°F cooler than September and about 5°F warmer than November.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18576
28576
38576
48576
58476
68476
78476
88476
98475
108475
118475
128475
138475
148374
158374
168374
178374
188374
198373
208373
218273
228273
238273
248272
258272
268272
278272
288171
298171
308171
318171

How October really feels in Marco Island

Once humidity and wind are folded in, October averages 8 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
8
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in October is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Marco Island weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan72° / 61°1.5510.67.7
Feb73° / 62°1.13.911.18.1
Mar76° / 65°1.34.211.88.2
Apr80° / 69°1.65.512.67.6
May84° / 74°2.79.113.36.0
Jun86° / 78°5.919.413.64.0
Jul87° / 79°5.020.813.53.6
Aug87° / 79°5.521.612.93.5
Sep86° / 78°5.919.712.23.9
Oct83° / 74°3.19.111.46.1
Nov78° / 68°1.33.810.78.0
Dec74° / 64°1.1410.48.1

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 16% of October, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
35149
45248
55545
65644
75743
85842
95941
106040
116139
126238
136337
146337
156337
166436
176535
186535
196436
206436
216436
226535
236535
246535
256535
266634
276733
286733
296733
306733
316832

Chance of precipitation in October

Any precipitation

Marco Island gets around 3.1 in of rain over 9.1 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 30% and peaks near 50% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
150
248
346
444
542
640
738
837
935
1034
1133
1232
1331
1430
1529
1628
1728
1827
1927
2026
2126
2225
2324
2423
2522
2622
2721
2820
2919
3018
3118

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the oppressive band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 81% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1002126026
2003135925
3013145824
4014155822
5014165821
6015175819
7015185818
8016195816
9017205715
10118215514
11129225412
12129235411
131210235410
14131124529
15231224527
16241325507
17241326496
18341426485
19351526464
20351627454
21461627434
22461727423
23571827413
24571827393
25571828383
26681928373
27681929363
28681930352
29792030332
30792030322
31892130312

Wind in October

Winds average 9 mph in October.

Across October, daily wind ranges from about 9 mph on the calmest days to 10 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
19light breeze
29light breeze
39light breeze
49light breeze
59light breeze
69light breeze
79light breeze
89light breeze
99light breeze
109light breeze
119light breeze
129light breeze
139light breeze
149light breeze
159light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
2310light breeze
2410light breeze
2510light breeze
2610light breeze
2710light breeze
2810light breeze
2910light breeze
3010light breeze
3110light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 48 min at the start of October to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over October. Sunrise moves from 6:23 AM to 6:40 AM, and sunset from 6:09 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:236:09
211.76:246:08
311.76:246:06
411.76:246:05
511.76:256:04
611.66:256:03
711.66:266:02
811.66:266:01
911.66:276:00
1011.56:275:59
1111.56:285:58
1211.56:285:57
1311.56:295:56
1411.46:305:55
1511.46:305:54
1611.46:315:53
1711.46:315:52
1811.36:325:51
1911.36:325:50
2011.36:335:50
2111.36:335:49
2211.26:345:48
2311.26:355:47
2411.26:355:46
2511.26:365:46
2611.16:365:45
2711.16:375:44
2811.16:385:43
2911.16:385:43
3011.06:395:42
3111.06:405:41

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.65 kWh/m².

For context, solar energy here swings from a low near 3.55 kWh/m² to a high of 6.75 kWh/m² in May across the year — October's 4.65 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.7Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.4Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in October

Hazard calendar for Marco Island

In seasonPeak

In October, Marco Island sits inside 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.

Atlantic hurricane
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Marco Island?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.1
Sightseeing
7th-best month of the year
7.1
Beach & pool
5th-best month of the year

October 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 October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Marco Island sees daytime highs around 83°F and nights near 74°F. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

light clothesrain gearsun protection

Sea temperature near Marco Island in October

The nearest coast averages about 82°F in October — 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.

70°80°90°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan69Refreshing
Feb69Refreshing
Mar72Refreshing
Apr76Warm
May81Warm
Jun84Tropical
Jul86Tropical
Aug86Tropical
Sep85Tropical
Oct82Warm
Nov76Warm
Dec72Refreshing

UV index in Marco Island in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 8 (very high — sun protection essential). 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 17UV 12Dec 18UV 5
UV index (midday)Level
Jan5High
Feb7Very high
Mar9Very high
Apr10Very high
May10Extreme
Jun11Extreme
Jul12Extreme
Aug11Extreme
Sep10Very high
Oct8Very high
Nov6High
Dec5Moderate

Air quality in Marco Island in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1819 µg/m³Dec 147 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb9Good
Mar12Good
Apr10Good
May11Good
Jun15Moderate
Jul20Moderate
Aug17Moderate
Sep12Moderate
Oct9Good
Nov8Good
Dec7Good
Location & terrain

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.

2 miles
43 ft
10 miles
62 ft
50 miles
98 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
October weather nearby: East Naples 14 mi · Naples 15 mi · Golden Gate 17 mi · Bonita Springs 28 mi · Estero 35 mi · San Carlos Park 37 mi · Immokalee 38 mi · Iona 43 mi

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
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).