Franklin weather in August

In August, Franklin sees average daytime highs of 88°F and overnight lows near 70°F, with 3.3 in of rain across 10.5 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 88°F through the month. The sky is clear or mostly clear about 32% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 13 h 48 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Franklin's 4th-clearest and 12th-windiest month. For the whole year in context, see Franklin's year-round climate.

Daytime high
88°
2nd warmest
Overnight low
70°
11th coldest
Rainfall
3.3 in
10.5 wet days
Daylight
13 h 24 min
5:10 AM – 6:33 PM
Cloud cover
55%
4th clearest
Wind
4 mph
12th windiest
Solar energy
5.6 kWh/m²
Travel score
4.5
out of 10

Franklin is city and county seat of Williamson County, Tennessee, United States.

Density
672/km²
people per km²
Founded
1799

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 88°F through the month.

A typical August day in Franklin reaches about 88°F in the afternoon and slips back to 70°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 81°F and 95°F. Set against its neighbours, August runs on par with July and about 5°F warmer than September.

60°70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
18871
28871
38871
48871
58871
68871
78870
88870
98870
108870
118870
128870
138870
148870
158870
168870
178870
188869
198869
208869
218869
228869
238769
248769
258769
268769
278769
288768
298768
308768
318668

How August really feels in Franklin

Once humidity and wind are folded in, August averages 28 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
28
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.

Franklin weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan47° / 31°4.110.31.49.81.6
Feb52° / 34°4.610.21.610.62.6
Mar60° / 41°5.011.30.711.74.8
Apr70° / 50°5.010.7012.96.3
May78° / 60°4.712.3013.96.4
Jun85° / 68°4.112.3014.44.9
Jul88° / 71°4.313.1014.24.0
Aug88° / 70°3.310.5013.44.5
Sep82° / 62°3.27.9012.26.4
Oct71° / 51°3.57.8011.17.1
Nov59° / 41°3.890.210.14.9
Dec50° / 35°5.110.50.59.62.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25446
35446
45446
55446
65446
75446
85347
95347
105347
115347
125347
135347
145446
155446
165446
175545
185545
195644
205545
215644
225644
235743
245743
255743
265743
275743
285743
295743
305842
315842

Chance of precipitation in August

Any precipitation

Franklin gets around 3.3 in of rain over 10.5 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 35% and peaks near 41% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
241
341
440
540
640
739
839
939
1039
1138
1238
1337
1437
1536
1635
1734
1833
1933
2032
2131
2231
2330
2430
2530
2630
2730
2829
2929
3029
3129

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 75% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1151333462
2151334461
3151334451
4151335442
5161335442
6161335432
7171335422
8171435412
9171434412
10181434403
11281434403
12281534393
13291533393
14291533383
15291633373
161101634373
171101634363
181101735352
191101735352
201101736342
211101736342
22191737341
23191738341
24191739341
25191739331
26291740320
27291740310
28291840300
29291940290
303102040280
314102140260

Wind in August

Winds average 4 mph in August, the calmest month.

Across August, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 48 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over August. Sunrise moves from 4:58 AM to 5:22 AM, and sunset from 6:49 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.84:586:49
213.84:596:48
313.85:006:47
413.85:016:46
513.75:016:45
613.75:026:44
713.75:036:43
813.65:046:42
913.65:056:41
1013.65:066:40
1113.55:066:39
1213.55:076:37
1313.55:086:36
1413.45:096:35
1513.45:106:34
1613.45:106:33
1713.35:116:32
1813.35:126:30
1913.35:136:29
2013.25:146:28
2113.25:146:26
2213.25:156:25
2313.15:166:24
2413.15:176:22
2513.15:186:21
2613.05:186:20
2713.05:196:18
2812.95:206:17
2912.95:216:15
3012.95:226:14
3112.85:226:13

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.6 kWh/m².

For context, solar energy here swings from a low near 2.01 kWh/m² to a high of 6.2 kWh/m² in June across the year — August's 5.6 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.4Bright
245.4Bright
255.4Bright
265.3Bright
275.3Bright
285.3Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in August

Is August a good time to visit Franklin?

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

4.5
Sightseeing
8th-best month of the year
6.6
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Franklin for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Franklin in August

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

In August, Franklin sees daytime highs around 88°F and nights near 70°F. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Franklin 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 Franklin peaks around July 12 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 12UV 10Dec 20UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep7Very high
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Franklin 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 Franklin is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1518 µg/m³Dec 147 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar10Good
Apr10Good
May13Moderate
Jun16Moderate
Jul19Moderate
Aug15Moderate
Sep11Good
Oct7Good
Nov7Good
Dec7Good
Location & terrain

Where is Franklin?

Franklin sits at 35.9°N, 86.9°W, 643 ft above sea level, in United States. The nearest listed city is Brentwood Estates, 8.7 mi away.

Topography around Franklin

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

Within 2 miles, the terrain around Franklin has only modest variations in elevation — a maximum elevation change of 430 ft around an average of 679 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 764 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,890 ft.

The land around Franklin is covered by trees (50%), grassland (25%) and artificial surfaces (21%) within 2 miles, trees (61%) and grassland (30%) within 10 miles, and trees (66%) and grassland (25%) within 50 miles.

2 miles
430 ft
10 miles
764 ft
50 miles
1,890 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Brentwood Estates 8.7 mi · Brentwood 8.7 mi · Spring Hill 12 mi · La Vergne 17 mi · Nashville 17 mi · Smyrna 20 mi · Hermitage 23 mi · Columbia 24 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 Franklin (35.9251°, -86.8689°, elevation 643 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. 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).