Bangor weather in August

In August, Bangor sees average daytime highs of 18°C and overnight lows near 13°C, with 82 mm of rain across 14.9 wet days and about 14.6 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 9% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 h 30 min at the start of August to 13 h 36 min by month's end. Set against the rest of the year, August is Bangor's 8th-clearest and 11th-windiest month. For the whole year in context, see Bangor's year-round climate.

Daytime high
18°
2nd warmest
Overnight low
13°
12th coldest
Rainfall
82 mm
14.9 wet days
Daylight
14 h 36 min
5:04 AM – 7:38 PM
Cloud cover
74%
8th clearest
Wind
15 km/h
11th windiest
Solar energy
4.23 kWh/m²
Travel score
5.1
out of 10

Bangor is city in Gwynedd, Wales.

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 18°C through the month.

A typical August day in Bangor reaches about 18°C in the afternoon and slips back to 13°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 21°C. Set against its neighbours, August runs on par with July and about 2°C warmer than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11913
21913
31913
41913
51913
61913
71913
81913
91913
101913
111913
121913
131913
141913
151913
161813
171813
181813
191813
201812
211812
221812
231812
241812
251812
261812
271812
281812
291812
301812
311812

How August really feels in Bangor

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
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 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 8915.40.67.91.0
Feb / 7813.80.99.41.1
Mar / 7614.60.811.51.7
Apr12° / 7314.50.213.62.7
May15° / 7214.40.115.63.8
Jun17° / 11°7713.8016.64.7
Jul19° / 13°7315.4016.25.1
Aug18° / 13°8214.9014.65.1
Sep16° / 11°8013.8012.44.6
Oct13° / 9615.2010.33.3
Nov10° / 10516.60.28.42.0
Dec / 10516.10.67.41.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12773
22674
32674
42674
52674
62674
72575
82575
92575
102575
112575
122575
132575
142575
152575
162575
172476
182476
192476
202575
212575
222674
232674
242674
252674
262773
272773
282773
292773
302773
312872

Chance of precipitation in August

Any precipitation

Bangor gets around 82 mm of rain over 14.9 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 48% and peaks near 53% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
153
253
353
452
552
651
751
850
950
1050
1149
1249
1349
1449
1549
1649
1749
1849
1949
2048
2148
2247
2347
2446
2545
2645
2744
2844
2944
3044
3143

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 57% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
148457
248447
349438
450428
551418
651409
752399
853389
954379
1054379
1155369
1255369
1356368
1456368
1556368
1656368
1757367
1857367
1958366
2058366
2160355
2260355
2361345
2463334
2563334
2664324
2766313
2867303
2968293
3069283
3170273

Wind in August

Winds average 15 km/h in August.

Across August, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 30 min at the start of August to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 114 minutes over August. Sunrise moves from 4:38 AM to 5:30 AM, and sunset from 8:07 PM to 7:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.54:388:07
215.44:408:05
315.44:418:04
415.34:438:02
515.34:458:00
615.24:467:58
715.14:487:56
815.14:507:54
915.04:517:52
1015.04:537:50
1114.94:557:48
1214.84:577:46
1314.84:587:44
1414.75:007:42
1514.65:027:40
1614.65:047:38
1714.55:057:36
1814.45:077:33
1914.45:097:31
2014.35:117:29
2114.25:127:27
2214.25:147:24
2314.15:167:22
2414.05:187:20
2514.05:197:17
2613.95:217:15
2713.85:237:13
2813.85:257:10
2913.75:267:08
3013.65:287:06
3113.65:307:03

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.23 kWh/m².

For context, solar energy here swings from a low near 0.52 kWh/m² to a high of 5.54 kWh/m² in June across the year — August's 4.23 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.6Bright
44.6Bright
54.6Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.4Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.3Bright
164.2Bright
174.2Bright
184.2Bright
194.1Bright
204.1Bright
214.0Bright
224.0Bright
234.0Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.7Moderate
313.7Moderate
Planning a trip in August

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).

5.1
Sightseeing
1st-best month of the year
1.9
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Bangor for sightseeing.

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 18°C and nights near 13°C. Pack rain gear. About 15 days see rain.

rain gear

Sea temperature near Bangor in August

The nearest coast averages about 16°C 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 16 km away) is warmest in August at about 16°C and coldest in March near 7°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan8Bracing
Feb7Bracing
Mar7Bracing
Apr8Bracing
May10Bracing
Jun13Bracing
Jul15Bracing
Aug16Cool
Sep15Cool
Oct14Bracing
Nov12Bracing
Dec10Bracing

UV index in Bangor in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — 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 August 12 at about 6 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 12UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May5High
Jun5High
Jul5High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Bangor?

Bangor sits at 53.2°N, 4.1°W, 23 m above sea level, in United Kingdom. The nearest listed city is Llandudno, 23 km away.

Moreton

Topography around Bangor

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Bangor.

Within 3 km, the terrain around Bangor has only modest variations in elevation — a maximum elevation change of 115 m around an average of 44 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,059 m; within 80 km, large variations in elevation — a maximum elevation change of 1,060 m.

The land around Bangor is covered by trees (34%), grassland (31%) and water (22%) within 3 km, grassland (58%) and water (25%) within 16 km, and water (55%) and grassland (35%) within 80 km.

3 km
115 m
16 km
1,059 m
80 km
1,060 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Llandudno 23 km · Colwyn Bay 28 km · Rhyl 44 km · Prestatyn 50 km · Flint 66 km · Heswall 70 km · Moreton 70 km · Buckley 70 km

United Kingdom travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / G / M
230 V · 50 Hz
Prices
≈ 89% of US
price level, 2025
GDP per capita
$57,602
2025
Happiness
6.7 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.1
per 100k, 2021
Road deaths
3.2
per 100k/yr, 2019
Income group
High
World Bank
Religion
Christian 60%none 26%Muslim 4%other 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 (53.2275°, -4.1294°, elevation 23 m), 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. 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).