Lebanon weather in August

In August, Lebanon sees average daytime highs of 83°F and overnight lows near 66°F, with 3.1 in of rain across 9.7 wet days and about 13.5 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 83°F through the month. The sky is clear or mostly clear about 37% of the time in August, and the air most often feels muggy.

Daylight stretches from about 14 h 06 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Lebanon's 2nd-clearest and 12th-windiest month. For the whole year in context, see Lebanon's year-round climate.

Daytime high
83°
2nd warmest
Overnight low
66°
11th coldest
Rainfall
3.1 in
9.7 wet days
Daylight
13 h 36 min
5:54 AM – 7:28 PM
Cloud cover
53%
2nd clearest
Wind
5 mph
12th windiest
Solar energy
5.62 kWh/m²
Travel score
6.0
out of 10

Lebanon is city and the county seat of Warren County, Ohio, United States.

Density
617/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 83°F through the month.

A typical August day in Lebanon reaches about 83°F in the afternoon and slips back to 66°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 76°F and 90°F. Set against its neighbours, August runs on par with July and about 6°F warmer than September.

50°60°70°80°90°151015202531
Avg high (°F)Avg low (°F)
18467
28467
38467
48467
58367
68367
78366
88366
98366
108366
118366
128366
138366
148366
158366
168366
178366
188366
198365
208365
218365
228365
238365
248365
258365
268265
278265
288265
298264
308264
318264

How August really feels in Lebanon

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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Lebanon weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan38° / 24°3.310.24.49.50.0
Feb41° / 26°2.99.33.910.50.3
Mar51° / 34°4.111.42.111.72.5
Apr64° / 45°4.612.50.5135.2
May73° / 55°4.613.1014.16.2
Jun81° / 64°4.212.5014.75.9
Jul84° / 67°3.511014.55.4
Aug83° / 66°3.19.7013.56.0
Sep77° / 58°2.67.8012.37.2
Oct65° / 47°2.98.60.1116.0
Nov52° / 37°3.39.10.89.82.8
Dec42° / 29°3.69.939.30.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% 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 44%. 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
85446
95446
105446
115446
125446
135446
145545
155545
165545
175644
185644
195743
205743
215743
225743
235644
245743
255743
265743
275842
285842
295842
305941
315941

Chance of precipitation in August

Any precipitation

Lebanon gets around 3.1 in of rain over 9.7 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 31% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
134
233
333
433
532
632
732
832
932
1032
1132
1232
1332
1432
1532
1632
1732
1831
1931
2031
2131
2231
2331
2431
2531
2630
2730
2829
2928
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 28% of days. Sticky, muggy-or-worse air turns up on roughly 42% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1721272916
2721272916
3822272815
4822272815
5822272815
6922272815
7922262715
81022262715
91022262715
101022252715
111123252715
121123252715
131123242715
141123242715
151123242714
161123242814
171223232813
181223232813
191223232913
201223232913
211223232913
221223232913
231222232913
241222232913
251322232913
261322232913
271422232813
281423232812
291523222712
301624222712
311624222611

Wind in August

Winds average 5 mph in August, the calmest month.

Across August, daily wind ranges from about 5 mph on the calmest days to 6 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 06 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 72 minutes over August. Sunrise moves from 5:40 AM to 6:08 AM, and sunset from 7:46 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:407:46
214.15:417:45
314.05:427:44
414.05:437:43
514.05:447:41
613.95:457:40
713.95:467:39
813.95:467:38
913.85:477:37
1013.85:487:36
1113.75:497:34
1213.75:507:33
1313.75:517:32
1413.65:527:30
1513.65:537:29
1613.65:547:28
1713.55:557:26
1813.55:567:25
1913.45:577:24
2013.45:587:22
2113.45:597:21
2213.36:007:19
2313.36:017:18
2413.26:027:16
2513.26:037:15
2613.26:047:13
2713.16:057:12
2813.16:067:10
2913.06:067:09
3013.06:077:07
3112.96:087:05

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.62 kWh/m².

For context, solar energy here swings from a low near 1.66 kWh/m² to a high of 6.2 kWh/m² in June across the year — August's 5.62 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
55.9Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
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 Lebanon?

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

6.0
Sightseeing
3rd-best month of the year
7.0
Beach & pool
1st-best month of the year

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

What to pack for Lebanon in August

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

In August, Lebanon sees daytime highs around 83°F and nights near 66°F. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Lebanon in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lebanon peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 21UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun10Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov3Moderate
Dec2Low

Air quality in Lebanon 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 Lebanon is worst in July — around 17 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1117 µg/m³Oct 238 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Good
Mar12Good
Apr12Moderate
May15Moderate
Jun17Moderate
Jul17Moderate
Aug15Moderate
Sep12Good
Oct8Good
Nov8Good
Dec9Good
Location & terrain

Where is Lebanon?

Lebanon sits at 39.4°N, 84.2°W, 768 ft above sea level, in United States. The nearest listed city is Mason, 7.5 mi away.

Topography around Lebanon

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

Within 2 miles, the terrain around Lebanon has only modest variations in elevation — a maximum elevation change of 295 ft around an average of 814 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 551 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 919 ft.

The land around Lebanon is covered by trees (39%) and grassland (35%) within 2 miles, trees (42%), grassland (30%) and cropland (20%) within 10 miles, and cropland (42%) and trees (37%) within 50 miles.

2 miles
295 ft
10 miles
551 ft
50 miles
919 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Mason 7.5 mi · Springboro 8.1 mi · Middletown 12 mi · Centerville 14 mi · Miamisburg 15 mi · Kettering 17 mi · Forest Park 19 mi · Hamilton 19 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 Lebanon (39.4353°, -84.203°, elevation 768 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).