Aberystwyth weather in August

In August, Aberystwyth sees average daytime highs of 18°C and overnight lows near 12°C, with 97 mm of rain across 16.6 wet days and about 14.5 hours of daylight. It is the 2nd-warmest and 6th-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 24 min at the start of August to 13 h 30 min by month's end. Set against the rest of the year, August is Aberystwyth's 5th-clearest and 10th-windiest month. For the whole year in context, see Aberystwyth's year-round climate.

Daytime high
18°
2nd warmest
Overnight low
12°
12th coldest
Rainfall
97 mm
16.6 wet days
Daylight
14 h 30 min
5:06 AM – 7:35 PM
Cloud cover
74%
5th clearest
Wind
13 km/h
10th windiest
Solar energy
3.74 kWh/m²
Travel score
4.9
out of 10

Aberystwyth is seaside and university town and community in Ceredigion, Wales.

Founded
1109

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 Aberystwyth reaches about 18°C in the afternoon and slips back to 12°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 22°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
91813
101813
111813
121812
131812
141812
151812
161812
171812
181812
191812
201812
211812
221812
231812
241812
251812
261812
271812
281712
291711
301711
311711

How August really feels in Aberystwyth

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.

Aberystwyth weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 12416.81.180.7
Feb / 9914.31.39.50.9
Mar / 9214.9111.51.6
Apr12° / 7613.90.413.62.7
May15° / 8214.3015.43.8
Jun17° / 10°8813.7016.54.7
Jul18° / 12°9015.6016.15.1
Aug18° / 12°9716.6014.54.9
Sep16° / 10°9214012.44.4
Oct13° / 12016.20.110.33.0
Nov10° / 12917.70.38.51.7
Dec / 14017.50.97.50.9

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 17% of August, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
32971
42971
52971
62872
72872
82872
92773
102773
112674
122575
132575
142674
152575
162575
172575
182575
192575
202476
212476
222476
232575
242575
252674
262575
272575
282674
292575
302674
312674

Chance of precipitation in August

Any precipitation

Aberystwyth gets around 97 mm of rain over 16.6 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 53% and peaks near 56% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
152
252
352
453
553
653
752
852
952
1052
1152
1253
1353
1454
1554
1655
1755
1856
1956
2056
2156
2255
2355
2454
2553
2652
2751
2850
2949
3048
3148

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 60% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
151427
252417
352408
453398
554388
654379
755369
856359
956359
1057349
1157349
1257349
1357349
1457349
1558348
1658348
1758348
1859347
1959347
2060346
2161336
2262335
2363325
2464324
2565314
2665314
2767303
2868293
2970282
3071272
3172262

Wind in August

Winds average 13 km/h in August.

Across August, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 24 min at the start of August to 13 h 30 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 4:41 AM to 5:31 AM, and sunset from 8:04 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.44:418:04
215.34:438:02
315.34:448:00
415.24:467:59
515.24:477:57
615.14:497:55
715.04:517:53
815.04:527:51
914.94:547:49
1014.94:567:47
1114.84:577:45
1214.74:597:43
1314.75:017:41
1414.65:027:39
1514.65:047:37
1614.55:067:35
1714.45:077:33
1814.45:097:31
1914.35:117:29
2014.25:127:27
2114.25:147:24
2214.15:167:22
2314.05:187:20
2414.05:197:18
2513.95:217:15
2613.85:237:13
2713.85:247:11
2813.75:267:09
2913.65:287:06
3013.65:297:04
3113.55:317:02

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.74 kWh/m².

For context, solar energy here swings from a low near 0.53 kWh/m² to a high of 4.89 kWh/m² in June across the year — August's 3.74 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.1Bright
34.1Bright
44.1Bright
54.0Bright
64.0Bright
74.0Bright
84.0Moderate
94.0Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.8Moderate
143.8Moderate
153.8Moderate
163.7Moderate
173.7Moderate
183.7Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.5Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.3Moderate
303.3Moderate
313.3Moderate
Planning a trip in August

Is August a good time to visit Aberystwyth?

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

4.9
Sightseeing
2nd-best month of the year
1.7
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Aberystwyth for sightseeing.

What to pack for Aberystwyth in August

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

In August, Aberystwyth sees daytime highs around 18°C and nights near 12°C. Pack rain gear. About 17 days see rain.

rain gear

Sea temperature near Aberystwyth in August

The nearest coast averages about 17°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 17°C and coldest in February near 7°C.

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

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan8Bracing
Feb7Bracing
Mar8Bracing
Apr9Bracing
May12Bracing
Jun15Bracing
Jul17Cool
Aug17Cool
Sep16Cool
Oct14Bracing
Nov12Bracing
Dec9Bracing

UV index in Aberystwyth 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 Aberystwyth peaks around August 13 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. 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 13UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Aberystwyth?

Aberystwyth sits at 52.4°N, 4.1°W, 10 m above sea level, in United Kingdom. The nearest listed city is Carmarthen, 64 km away.

AmmanfordLlanelliClydachGorseinonOswestryNeathMerthyr Tydfil

Topography around Aberystwyth

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

Within 3 km, the terrain around Aberystwyth has only modest variations in elevation — a maximum elevation change of 149 m around an average of 32 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 512 m; within 80 km, large variations in elevation — a maximum elevation change of 1,054 m.

The land around Aberystwyth is covered by water (45%) and grassland (29%) within 3 km, water (47%) and grassland (41%) within 16 km, and grassland (55%) and water (29%) within 80 km.

3 km
149 m
16 km
512 m
80 km
1,054 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Carmarthen 64 km · Ammanford 70 km · Llanelli 82 km · Clydach 82 km · Gorseinon 83 km · Oswestry 85 km · Neath 86 km · Merthyr Tydfil 88 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 Aberystwyth (52.4155°, -4.0829°, elevation 10 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).