Marco Island weather in March

In March, Marco Island sees average daytime highs of 76°F and overnight lows near 65°F, with 1.3 in of rain across 4.2 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 74°F in the first days to 78°F by the end. The sky is clear or mostly clear about 57% of the time in March, and the air most often feels muggy.

Daylight stretches from about 11 h 24 min at the start of March to 12 h 12 min by month's end. Set against the rest of the year, March is Marco Island's 1st-clearest and 3rd-windiest month. For the whole year in context, see Marco Island's year-round climate.

Daytime high
76°
9th warmest
Overnight low
65°
4th coldest
Rainfall
1.3 in
4.2 wet days
Daylight
11 h 48 min
6:42 AM – 6:31 PM
Cloud cover
38%
1st clearest
Wind
10 mph
3rd windiest
Solar energy
5.75 kWh/m²
Travel score
8.2
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 March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 74°F in the first days to 78°F by the end.

A typical March day in Marco Island reaches about 76°F in the afternoon and slips back to 65°F overnight — a 11°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 81°F. Set against its neighbours, March runs about 3°F warmer than February and about 4°F cooler than April.

50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
17464
27464
37464
47464
57464
67564
77564
87564
97564
107564
117564
127564
137564
147564
157665
167665
177665
187665
197665
207665
217666
227766
237766
247766
257766
267767
277767
287867
297867
307867
317867

How March really feels in Marco Island

Once humidity and wind are folded in, March averages 0 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
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Marco Island weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 9th-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in March, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of March, with mostly cloudy or overcast conditions the remaining 26%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37327
47327
57327
67327
77327
87327
97327
107327
117327
127327
137327
147327
157327
167228
177327
187327
197327
207426
217426
227426
237426
247426
257525
267624
277624
287624
297624
307624
317624

Chance of precipitation in March

Any precipitation

Marco Island gets around 1.3 in of rain over 4.2 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 14% and peaks near 15% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
114
214
314
413
513
613
712
812
912
1013
1113
1213
1314
1414
1514
1615
1715
1815
1915
2015
2115
2215
2315
2415
2515
2615
2715
2814
2915
3015
3115

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the muggy band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 36% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1261621315
2271721305
3271721295
4281821284
5281922274
6281922274
7281922264
8282022264
9282023264
10272023264
11262024264
12251925264
13241925274
14231926275
15231926285
16221826285
17211826296
18201826297
19191826307
20181826308
21171826318
22161826319
231518263110
241518253110
251418253111
261418253112
271418253112
281318253112
291318253213
301317253313
311217243313

Wind in March

Winds average 10 mph in March.

Across March, 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
110light breeze
210light breeze
310light breeze
410light breeze
510light breeze
610light breeze
710light breeze
810light breeze
910light breeze
1010light breeze
1110light breeze
1210light breeze
1310light breeze
1410light breeze
1510light breeze
169light breeze
179light breeze
189light breeze
199light breeze
209light breeze
219light breeze
229light breeze
239light breeze
249light breeze
259light breeze
269light breeze
279light breeze
289light breeze
299light breeze
309light breeze
319light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 24 min at the start of March to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over March. Sunrise moves from 6:57 AM to 6:26 AM, and sunset from 6:23 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:576:23
211.56:566:23
311.56:556:24
411.56:546:25
511.56:546:25
611.66:536:26
711.66:526:26
811.66:516:27
911.66:506:27
1011.76:496:28
1111.76:476:28
1211.76:466:29
1311.76:456:29
1411.86:446:30
1511.86:436:30
1611.86:426:31
1711.86:416:31
1811.96:406:32
1911.96:396:32
2011.96:386:33
2111.96:376:33
2212.06:366:34
2312.06:356:34
2412.06:336:35
2512.06:326:35
2612.16:316:36
2712.16:306:36
2812.16:296:37
2912.26:286:37
3012.26:276:37
3112.26:266:38

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.75 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 — March's 5.75 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.3Bright
45.3Bright
55.4Bright
65.4Bright
75.4Bright
85.5Bright
95.5Bright
105.5Bright
115.6Bright
125.6Bright
135.6Bright
145.7Bright
155.7Bright
165.7Bright
175.8Bright
185.8Bright
195.8Bright
205.9Bright
215.9Bright
226.0Bright
236.0Bright
246.0Intense
256.1Intense
266.1Intense
276.1Intense
286.2Intense
296.2Intense
306.2Intense
316.3Intense
Planning a trip in March

Hazard calendar for Marco Island

In seasonPeak

None of Marco Island's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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 March a good time to visit Marco Island?

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

8.2
Sightseeing
1st-best month of the year
7.1
Beach & pool
4th-best month of the year

March is one of the better times to visit Marco Island for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Marco Island in March

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

In March, Marco Island sees daytime highs around 76°F and nights near 65°F. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Marco Island in March

The nearest coast averages about 72°F in March — 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 March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 9 (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 March

GoodModeratePoorUnhealthyVery unhealthy

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