Fort Walton Beach weather in August

In August, Fort Walton Beach sees average daytime highs of 87°F and overnight lows near 76°F, with 5.9 in of rain across 20.2 wet days and about 13.1 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 87°F through the month. The sky is clear or mostly clear about 25% of the time in August, and the air most often feels miserable.

Daylight stretches from about 13 h 30 min at the start of August to 12 h 42 min by month's end. Set against the rest of the year, August is Fort Walton Beach's 11th-clearest and 12th-windiest month. For the whole year in context, see Fort Walton Beach's year-round climate.

Daytime high
87°
2nd warmest
Overnight low
76°
11th coldest
Rainfall
5.9 in
20.2 wet days
Daylight
13 h 06 min
5:17 AM – 6:24 PM
Cloud cover
63%
11th clearest
Wind
6 mph
12th windiest
Solar energy
5.39 kWh/m²
Travel score
3.7
out of 10

Fort Walton Beach is city in Okaloosa County, Florida, United States.

Density
1,014/km²
people per km²
Founded
1941

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 87°F through the month.

A typical August day in Fort Walton Beach reaches about 87°F in the afternoon and slips back to 76°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 83°F and 91°F. Set against its neighbours, August runs on par with July and about 3°F warmer than September.

70°80°90°151015202531
Avg high (°F)Avg low (°F)
18777
28777
38777
48777
58777
68777
78777
88777
98777
108777
118777
128777
138777
148777
158777
168777
178776
188776
198776
208776
218776
228776
238776
248776
258776
268776
278776
288776
298776
308775
318675

How August really feels in Fort Walton Beach

Once humidity and wind are folded in, August averages 31 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
31
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

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

Fort Walton Beach weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan60° / 45°4.68.510.35.0
Feb63° / 49°4.27.410.95.9
Mar68° / 54°4.88.611.86.7
Apr74° / 61°3.67.412.77.4
May81° / 69°2.78.613.56.7
Jun86° / 75°4.715.713.94.4
Jul87° / 77°5.520.613.83.5
Aug87° / 76°5.920.213.13.7
Sep84° / 73°4.612.212.25.3
Oct77° / 63°3.56.611.37.6
Nov68° / 53°3.2710.57.1
Dec62° / 48°4.38.810.15.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
23961
34060
44060
54159
64159
74159
84159
94258
104159
114258
124258
134258
144159
154258
164258
174357
184456
194456
204555
214654
224654
234753
244753
254852
264753
274852
284951
294951
305050
315050

Chance of precipitation in August

Any precipitation

Fort Walton Beach gets around 5.9 in of rain over 20.2 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 65% and peaks near 70% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
170
270
370
470
570
670
770
870
970
1069
1169
1269
1369
1468
1568
1667
1766
1865
1964
2063
2162
2261
2360
2460
2559
2658
2757
2856
2956
3055
3154

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the miserable band about 50% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10034156
20034156
30034156
40034156
50134155
60134155
70134155
80134056
90124057
100124057
110124057
120124057
130134056
140134056
150134056
160134155
170144154
180144253
190144352
200154450
210154549
220154648
230154746
240164845
250164943
260165142
270175240
280175438
290285436
301285534
311295632

Wind in August

Winds average 6 mph in August, the calmest month.

Across August, daily wind ranges from about 6 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 30 min at the start of August to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over August. Sunrise moves from 5:08 AM to 5:26 AM, and sunset from 6:37 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:086:37
213.55:096:36
313.45:096:36
413.45:106:35
513.45:106:34
613.45:116:33
713.35:126:32
813.35:126:32
913.35:136:31
1013.35:146:30
1113.25:146:29
1213.25:156:28
1313.25:156:27
1413.25:166:26
1513.15:176:25
1613.15:176:24
1713.15:186:23
1813.15:186:22
1913.05:196:21
2013.05:206:20
2113.05:206:19
2212.95:216:17
2312.95:216:16
2412.95:226:15
2512.95:236:14
2612.85:236:13
2712.85:246:12
2812.85:246:10
2912.75:256:09
3012.75:266:08
3112.75:266:07

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.39 kWh/m².

For context, solar energy here swings from a low near 2.77 kWh/m² to a high of 6.46 kWh/m² in May across the year — August's 5.39 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in August

Hazard calendar for Fort Walton Beach

In seasonPeak

In August, Fort Walton Beach sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Fort Walton Beach sits in the Atlantic hurricane belt; the season peaks August–October.

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

Is August a good time to visit Fort Walton Beach?

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

3.7
Sightseeing
11th-best month of the year
5.2
Beach & pool
6th-best month of the year

August is a weaker month for outdoor sightseeing in Fort Walton Beach.

What to pack for Fort Walton Beach in August

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

In August, Fort Walton Beach sees daytime highs around 87°F and nights near 76°F. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

Sea temperature near Fort Walton Beach in August

The nearest coast averages about 85°F in August — 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 85°F and coldest in February near 64°F.

It's comfortable for a long swim from Apr 6 to Dec 18 — about 8.4 months when the water holds above 68°F.

60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan65Cool
Feb64Cool
Mar65Cool
Apr69Refreshing
May76Warm
Jun82Warm
Jul84Tropical
Aug85Tropical
Sep83Tropical
Oct79Warm
Nov72Refreshing
Dec68Refreshing

UV index in Fort Walton Beach in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Fort Walton Beach peaks around June 17 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJun 17UV 10Dec 19UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr9Very high
May9Very high
Jun10Extreme
Jul9Very high
Aug9Very high
Sep8Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Fort Walton Beach in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Fort Walton Beach is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1519 µg/m³Dec 147 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar12Moderate
Apr13Moderate
May12Moderate
Jun17Moderate
Jul19Moderate
Aug16Moderate
Sep12Moderate
Oct10Good
Nov8Good
Dec7Good
Location & terrain

Where is Fort Walton Beach?

Fort Walton Beach sits at 30.4°N, 86.6°W, 7 ft above sea level, in United States. The nearest listed city is Wright, 2.5 mi away.

Topography around Fort Walton Beach

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Fort Walton Beach.

Within 2 miles, the terrain around Fort Walton Beach has only modest variations in elevation — a maximum elevation change of 62 ft around an average of 20 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 236 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 384 ft.

The land around Fort Walton Beach is covered by artificial surfaces (36%), trees (33%) and water (23%) within 2 miles, water (51%) and trees (30%) within 10 miles, and trees (53%) and water (35%) within 50 miles.

2 miles
62 ft
10 miles
236 ft
50 miles
384 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Wright 2.5 mi · Navarre 15 mi · Midway 23 mi · Santa Rosa Beach 23 mi · Crestview 24 mi · East Pensacola Heights 34 mi · Pace 35 mi · Pensacola 36 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 Fort Walton Beach (30.4206°, -86.6171°, elevation 7 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).