Bangor weather in August

In August, Bangor sees average daytime highs of 77°F and overnight lows near 58°F, with 3.0 in of rain across 9.5 wet days and about 13.9 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 79°F in the first days to 75°F by the end. The sky is clear or mostly clear about 30% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 h 30 min at the start of August to 13 h 06 min by month's end. Set against the rest of the year, August is Bangor's 3rd-clearest and 12th-windiest month. For the whole year in context, see Bangor's year-round climate.

Daytime high
77°
2nd warmest
Overnight low
58°
11th coldest
Rainfall
3.0 in
9.5 wet days
Daylight
13 h 54 min
4:42 AM – 6:36 PM
Cloud cover
58%
3rd clearest
Wind
6 mph
12th windiest
Solar energy
5.15 kWh/m²
Travel score
6.9
out of 10

Bangor is city in and county seat of Penobscot County, Maine, United States.

Density
362/km²
people per km²
Founded
1769

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 79°F in the first days to 75°F by the end.

A typical August day in Bangor reaches about 77°F in the afternoon and slips back to 58°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 85°F. Set against its neighbours, August runs on par with July and about 8°F warmer than September.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17960
27960
37960
47959
57959
67959
77959
87859
97859
107859
117859
127859
137858
147858
157858
167758
177758
187758
197758
207757
217757
227657
237657
247657
257656
267656
277656
287556
297556
307555
317555

How August really feels in Bangor

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.

Bangor 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
Jan28° / 11°3.49.16.990.0
Feb31° / 13°2.997.310.10.0
Mar39° / 22°3.610.46.311.60.2
Apr52° / 34°3.611.22.713.22.6
May63° / 44°3.311.30.114.65.3
Jun73° / 53°3.711.4015.36.3
Jul78° / 59°3.110.60156.5
Aug77° / 58°3.09.5013.96.9
Sep69° / 50°3.58.4012.36.7
Oct57° / 40°4.410.60.510.74.0
Nov45° / 30°3.79.82.69.40.9
Dec34° / 19°4.311.578.70.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 50%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34852
44852
54753
64852
74753
84753
94753
104753
114753
124753
134852
144852
154852
164852
174951
185050
195050
205149
215248
225347
235347
245446
255446
265446
275446
285446
295446
305446
315446

Chance of precipitation in August

Any precipitation

Bangor gets around 3.0 in of rain over 9.5 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 30% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
132
232
331
431
531
631
731
832
932
1032
1132
1232
1332
1432
1532
1632
1731
1831
1931
2030
2130
2229
2329
2428
2528
2627
2727
2826
2926
3026
3126

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1232932151
2232932151
3242932151
4242932141
5252931141
6252931131
7263031131
8263031130
9263031130
10263030130
11273130120
12273130120
13273229120
14273229120
15283229120
16283228110
17293228110
18293227110
19303227100
20313227100
21323126100
22343126100
23353025100
2437292490
2539282390
2640282390
2742272290
2844262290
2945252180
3046252180
3148242080

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 14 h 30 min at the start of August to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over August. Sunrise moves from 4:25 AM to 5:01 AM, and sunset from 6:57 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.54:256:57
214.54:266:56
314.54:276:55
414.44:286:54
514.44:296:52
614.34:316:51
714.34:326:50
814.34:336:48
914.24:346:47
1014.24:356:45
1114.14:366:44
1214.14:386:42
1314.04:396:41
1414.04:406:39
1513.94:416:38
1613.94:426:36
1713.84:446:34
1813.84:456:33
1913.74:466:31
2013.74:476:29
2113.74:496:28
2213.64:506:26
2313.64:516:24
2413.54:526:22
2513.54:536:21
2613.44:556:19
2713.44:566:17
2813.34:576:15
2913.34:586:13
3013.24:596:11
3113.15:016:10

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.15 kWh/m².

For context, solar energy here swings from a low near 1.39 kWh/m² to a high of 5.74 kWh/m² in July across the year — August's 5.15 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.9Bright
284.8Bright
294.8Bright
304.8Bright
314.7Bright
Planning a trip in August

Hazard calendar for Bangor

In seasonPeak

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

Bangor 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 Bangor?

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

6.9
Sightseeing
1st-best month of the year
6.3
Beach & pool
1st-best month of the year

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

What to pack for Bangor in August

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

In August, Bangor sees daytime highs around 77°F and nights near 58°F. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Bangor in August

The nearest coast averages about 58°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 30 mi away) is warmest in August at about 58°F and coldest in February near 35°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

30°40°50°60°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°F)Comfort
Jan39Bracing
Feb35Bracing
Mar35Bracing
Apr40Bracing
May46Bracing
Jun52Bracing
Jul57Bracing
Aug58Bracing
Sep57Bracing
Oct54Bracing
Nov49Bracing
Dec44Bracing

UV index in Bangor in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bangor peaks around July 13 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateModerateLowJul 13UV 7Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr5Moderate
May7High
Jun6High
Jul8Very high
Aug4Moderate
Sep5High
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Bangor?

Bangor sits at 44.8°N, 68.8°W, 118 ft above sea level, in United States. The nearest listed city is Bar Harbor, 40 mi away.

Topography around Bangor

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

Within 2 miles, the terrain around Bangor has only modest variations in elevation — a maximum elevation change of 266 ft around an average of 118 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 912 ft; within 50 miles, significant variations in elevation — a maximum elevation change of 1,870 ft.

The land around Bangor is covered by trees (51%) and artificial surfaces (23%) within 2 miles, trees (78%) within 10 miles, and trees (80%) within 50 miles.

2 miles
266 ft
10 miles
912 ft
50 miles
1,870 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Bar Harbor 40 mi · Waterville 45 mi · Augusta 60 mi · Brunswick 85 mi · Lewiston 86 mi · Auburn 87 mi · Portland 108 mi · South Portland 108 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 Bangor (44.7988°, -68.7726°, elevation 118 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).