Marco Island weather in August: Marco Island, Florida: normal highs, lows, rain and records for August

Marco Island in August has a normal high of 92°F and a normal low of 76°F, a daily mean of 84°F, holding near 92°F all month. Measurable precipitation falls on 19 days in a normal August, 9.16 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 33°C and low of 25°C, 233 mm of precipitation in August.

  • NOAA stationMarco Island
  • Station IDUSC00085359
  • Location25.95°N 81.71°W
  • Elevation10 ft (3 m)
  • From the center1 miles
  • Population16,554
  1. Jan 74° 55°
  2. Feb 76° 57°
  3. Mar 79° 60°
  4. Apr 83° 65°
  5. May 88° 70°
  6. Jun 90° 74°
  7. Jul 91° 76°
  8. Aug 92° 76°
  9. Sep 90° 75°
  10. Oct 87° 71°
  11. Nov 81° 63°
  12. Dec 77° 59°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Marco Island in August?

The normal high is 92°F and the normal low 76°F, for a daily mean of 83.8°F. August is 0.3°F warmer than July and 1.2°F warmer than September. August is the warmest month of the year in Marco Island and the 2nd wettest. Across the month the normal high falls 1°F, from 92°F on August 1 to 91°F on August 31. From one year to the next August's mean temperature typically moves about 0.5°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 83°F and 84°F.

Marco Island in August, day by day: normal high and low

Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 63%).

Normal high and low on five days of August, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
August 192°F76°F55%37%
August 892°F76°F57%39%
August 1592°F76°F60%41%
August 2292°F76°F62%43%
August 3191°F76°F62%43%
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 8, coldest night August 1)
Marco Island: NOAA 1991-2020 daily normals for each day of August
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
August 192°F76°F55%37%13 h 20 min
August 292°F76°F55%37%13 h 20 min
August 392°F76°F55%38%13 h 20 min
August 492°F76°F56%38%13 h 20 min
August 592°F76°F56%38%13 h 20 min
August 692°F76°F57%38%13 h 20 min
August 792°F76°F57%39%13 h 10 min
August 892°F76°F57%39%13 h 10 min
August 992°F76°F58%39%13 h 10 min
August 1092°F76°F58%40%13 h 10 min
August 1192°F76°F58%40%13 h 10 min
August 1292°F76°F59%40%13 h 10 min
August 1392°F76°F59%41%13 h 10 min
August 1492°F76°F59%41%13 h 10 min
August 1592°F76°F60%41%13 h
August 1692°F76°F60%42%13 h
August 1792°F76°F61%42%13 h
August 1892°F76°F61%43%13 h
August 1992°F76°F61%43%13 h
August 2092°F76°F62%43%13 h
August 2192°F76°F62%43%13 h
August 2292°F76°F62%43%13 h
August 2391°F76°F62%43%12 h 50 min
August 2491°F76°F62%43%12 h 50 min
August 2591°F76°F63%44%12 h 50 min
August 2691°F76°F63%44%12 h 50 min
August 2791°F76°F63%44%12 h 50 min
August 2891°F76°F63%44%12 h 50 min
August 2991°F76°F62%44%12 h 50 min
August 3091°F76°F62%43%12 h 40 min
August 3191°F76°F62%43%12 h 40 min
Normal high
92°FAugust average
Normal low
76°FAugust average
Precipitation
9.16 inmonth total
Days with precipitation
190.01 inch or more
Days at 90°F or more
20
Daylight
13 h 20 min to 12 h 40 minAugust 1 to August 31
Days at 70°F or more
31
Days at 80°F or more
31
Sunshine
78%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USC00085359; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Marco Island in August?

On a given August day the chance of 0.01 inch or more is 60% on average, highest around August 26 (63%). In all, 9.16 in falls on 19 days of a normal August, 3 of them with an inch or more.

In a normal August in Marco Island, 20 days reach 90°F.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00085359.

What are the records for August in Marco Island?

The warmest August temperature on this station's record (since 2002) is 97°F, on August 26, 2014; the coldest is 67°F, on August 26, 2010. The wettest August brought 14.38 in (2017).

The August mean against the 1991-2020 normal of 83.8°F: 2021 83.7°F (−0.1), 2022 84.2°F (+0.4), 2023 85.3°F (+1.5), 2024 84.4°F (+0.6), 2025 83.8°F (at normal), 2026 84.7°F (+0.9). 4 of 6 ran warmer than normal.

Marco Island: August in recent years against the 1991-2020 normal
AugustMeanAgainst normalPrecip.
202183.7°F−0.1°F7.16 in
202284.2°F+0.4°F7.77 in
202385.3°F+1.5°F11.70 in
202484.4°F+0.6°F11.94 in
202583.8°Fat normal9.35 in
202684.7°F+0.9°F2.03 in

Source: records: ACIS, station USC00085359; recent months: ACIS, station USC00085359. Records and recent months use complete months only.

How does August in Marco Island compare across Florida?

Across the 106 places PlainClimate covers in Florida, August normal highs run from 88°F in Palm Coast to 94°F in Plant City; Marco Island's is 92°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places