Gallatin weather in August

In August, Gallatin sees average daytime highs of 87°F and overnight lows near 70°F, with 3.2 in of rain across 10.4 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 12th-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 35% of the time in August, and the air most often feels muggy.

Daylight stretches from about 13 h 54 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Gallatin's 3rd-clearest and 12th-windiest month. For the whole year in context, see Gallatin's year-round climate.

Daytime high
87°
2nd warmest
Overnight low
70°
11th coldest
Rainfall
3.2 in
10.4 wet days
Daylight
13 h 24 min
5:08 AM – 6:32 PM
Cloud cover
55%
3rd clearest
Wind
5 mph
12th windiest
Solar energy
5.64 kWh/m²
Travel score
4.6
out of 10

Gallatin is city in and the county seat of Sumner County, Tennessee, United States.

Density
418/km²
people per km²
Founded
1802

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 Gallatin reaches about 87°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 94°F. Set against its neighbours, August runs on par with July and about 6°F warmer than September.

60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18871
28871
38871
48871
58871
68871
78870
88870
98870
108870
118870
128770
138770
148770
158770
168770
178770
188769
198769
208769
218769
228769
238769
248769
258769
268769
278769
288768
298668
308668
318668

How August really feels in Gallatin

Once humidity and wind are folded in, August averages 23 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
23
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.

Gallatin weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan46° / 31°4.210.61.89.81.2
Feb50° / 34°4.610.61.710.62.2
Mar60° / 41°5.011.40.711.74.5
Apr69° / 50°5.111.20.112.96.2
May77° / 60°4.912.5013.96.3
Jun85° / 68°3.912.2014.45.0
Jul88° / 71°3.912.5014.24.2
Aug87° / 70°3.210.4013.44.6
Sep82° / 62°3.37.9012.26.5
Oct71° / 51°3.77.80.111.17.1
Nov58° / 40°4.090.310.14.5
Dec49° / 34°5.010.919.62.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% 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 (%)
15446
25446
35446
45446
55446
65446
75446
85347
95347
105347
115347
125347
135347
145347
155446
165545
175545
185545
195644
205743
215743
225743
235743
245743
255743
265743
275842
285743
295743
305842
315842

Chance of precipitation in August

Any precipitation

Gallatin gets around 3.2 in of rain over 10.4 wet days in August, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 40% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
239
339
439
539
639
738
838
938
1038
1137
1237
1337
1436
1535
1634
1733
1832
1931
2031
2130
2230
2330
2430
2529
2629
2729
2829
2929
3028
3128

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1171533430
2271534420
3271534410
4271534411
5271635401
6271635391
7381635381
8381635381
9381734372
10381734372
11381733362
12381733362
13381833362
14391832352
15391932342
16391932342
17392033332
18392033322
19392034322
20392034322
21392035311
22392036311
23392037311
24391937311
25391938301
26391939300
27391939290
28492039280
294102039270
305102139250
315102139240

Wind in August

Winds average 5 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
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 54 min at the start of August to 12 h 54 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 4:56 AM to 5:20 AM, and sunset from 6:48 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.94:566:48
213.84:566:47
313.84:576:46
413.84:586:45
513.84:596:44
613.75:006:43
713.75:016:42
813.75:016:41
913.65:026:40
1013.65:036:39
1113.65:046:38
1213.55:056:37
1313.55:056:35
1413.55:066:34
1513.45:076:33
1613.45:086:32
1713.45:096:31
1813.35:106:29
1913.35:106:28
2013.35:116:27
2113.25:126:25
2213.25:136:24
2313.15:146:23
2413.15:156:21
2513.15:156:20
2613.05:166:19
2713.05:176:17
2813.05:186:16
2912.95:196:14
3012.95:196:13
3112.95:206:11

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.64 kWh/m².

For context, solar energy here swings from a low near 1.96 kWh/m² to a high of 6.22 kWh/m² in June across the year — August's 5.64 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.4Bright
255.4Bright
265.4Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
315.2Bright
Planning a trip in August

Is August a good time to visit Gallatin?

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

4.6
Sightseeing
6th-best month of the year
6.7
Beach & pool
2nd-best month of the year

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

What to pack for Gallatin in August

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

In August, Gallatin sees daytime highs around 87°F and nights near 70°F. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Gallatin in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gallatin peaks around July 11 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 11UV 9Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Gallatin 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 Gallatin is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (November, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1518 µg/m³Nov 216 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar10Good
Apr10Good
May14Moderate
Jun16Moderate
Jul19Moderate
Aug14Moderate
Sep11Good
Oct7Good
Nov6Good
Dec7Good
Location & terrain

Where is Gallatin?

Gallatin sits at 36.4°N, 86.4°W, 538 ft above sea level, in United States. The nearest listed city is Hendersonville, 11 mi away.

Topography around Gallatin

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

Within 2 miles, the terrain around Gallatin has only modest variations in elevation — a maximum elevation change of 256 ft around an average of 548 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 771 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,919 ft.

The land around Gallatin is covered by trees (37%), grassland (34%) and artificial surfaces (21%) within 2 miles, trees (50%) and grassland (36%) within 10 miles, and trees (56%) and grassland (27%) within 50 miles.

2 miles
256 ft
10 miles
771 ft
50 miles
1,919 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Hendersonville 11 mi · Mount Juliet 14 mi · Lebanon 15 mi · Goodlettsville 16 mi · Hermitage 17 mi · Nashville 24 mi · Springfield 25 mi · La Vergne 27 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 Gallatin (36.3884°, -86.4467°, elevation 538 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).