Climateby Month

Naples, FL weather in August

NOAA 1991-2020 normals and daily records · Naples all year

August in Naples: hot and oppressively humid, with rain on most days. Highs 91°F, lows 73°F, about 20 days with rain. This is the peak of the warm season in Naples. Midday heat is the main thing to plan around.

Normal high
91°F
Normal low
73°F
Wet days
20
10.8 in total
Muggy days
31
dew point 65°F+

How August changes from start to finish

Normal values at the start and end of August
August 1August 31
Normal high91°F91°F
Normal low73°F73°F
Chance of a wet day61%61%
Sunrise / sunset6:53 am / 8:14 pm7:06 am / 7:48 pm
Daylight13.3 h12.7 h

Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).

A typical August day

  1. 6 am76°Fdew point 74°F
  2. 9 am84°Fdew point 75°F
  3. Noon88°Fdew point 73°F
  4. 3 pm87°Fdew point 73°F
  5. 6 pm83°Fdew point 73°F
  6. 9 pm79°Fdew point 74°F

NOAA hourly normals (local standard time) from Ft Myers Sw Fl Rgnl Airport (27 mi away); average wind 6 mph; clear or few clouds in 53% of daytime hours, mostly cloudy or overcast in 23%.

What kind of days to expect

  • Comfortable dayshigh 65-80°F and dew point under 60°F0 of 31
  • Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph11 of 31
  • Hot dayshigh 90°F or more27 of 31
  • Muggy daysdaily mean dew point 65°F or more31 of 31
  • Wet daysat least 0.01 in of rain or melted snow20 of 31
  • Notable rainat least 0.10 in15 of 31
  • Freezing nightslow 32°F or below0 of 31

Average days per August, counted from daily records for each year 1991-2020.

Rain in August

Normal precipitation is 10.8 in; a dry August brings about 8.3 in and a wet one about 12.7 in (25th and 75th percentiles). About 7 days bring half an inch or more, and about 3 an inch or more.

How August varies from year to year

  • Warmest August, 1991-20202002: average high 94°F
  • Coolest August1994: average high 90°F
  • Wettest August2017: 21.0 in
  • Driest August1997: 4.2 in
  • Highest reading97°F (August 14, 2011)
  • Lowest reading68°F (August 1, 2019)

From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.

August compared with July and September

JulyAugustSeptember
Normal high91°F91°F90°F
Normal low72°F73°F72°F
Wet days192017
Comfortable days000
Daylight13.6 h13.0 h12.3 h

Highs change by 0°F from July and -1°F into September.

Nearby alternatives in August

How Naples ranks in August

  • Normal high111th warmest of 378 cities; 8th of 23 in Florida
  • Wet days376th driest of 378
  • Comfortable days281st most of 341

What to pack for Naples in August

  • Light, breathable clothing – highs near 91°F and about 31 muggy days
  • A rain jacket or umbrella – rain on about 20 days
  • A swimsuit – about 11 beach days

Heating and cooling

August has 0 heating degree days and 522 cooling degree days (base 65°F), 14% of the year's total heating and cooling demand.

Questions

How hot is Naples in August?

The normal high is 91°F and the normal low is 73°F. From 1991 to 2020 the hottest August reading was 97°F (most recently on August 14, 2011).

Does it rain a lot in Naples in August?

About 20 days in August have at least 0.01 in of precipitation, and the normal total is 10.8 in. The wettest August in 1991-2020 was in 2017 (21.0 in); the driest was in 1997 (4.2 in).

Is August a good time to visit Naples?

August ranks 12th of 12 months on our comfort score for Naples (26 out of 100). It has almost no comfortable days and about 27 days at 90°F or hotter. The best months are January and March.

Where the numbers come from

  • Temperature, rain and frost dates: Naples (USC00086078), 7.0 mi ENE of the city center, 40 ft . NOAA normals and daily records, 1991-2020.
  • Snowfall and snow depth: Naples Muni Airport (USW00012897), 1.4 mi ENE of the city center, 9 ft . NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour and cloud cover: Ft Myers Sw Fl Rgnl Airport (USW00012894), 27 mi N of the city center, 31 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Naples Municipal Airport (722038-12897), 1.5 mi NE of the city center, 7 ft . Hourly observations, 1991-2020.