Porthcawl weather in August

In August, Porthcawl sees average daytime highs of 19°C and overnight lows near 14°C, with 93 mm of rain across 13.7 wet days and about 14.4 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 16% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 h 18 min at the start of August to 13 h 30 min by month's end. Set against the rest of the year, August is Porthcawl's 5th-clearest and 10th-windiest month. For the whole year in context, see Porthcawl's year-round climate.

Daytime high
19°
1st warmest
Overnight low
14°
12th coldest
Rainfall
93 mm
13.7 wet days
Daylight
14 h 24 min
5:07 AM – 7:31 PM
Cloud cover
69%
5th clearest
Wind
17 km/h
10th windiest
Solar energy
4.35 kWh/m²
Travel score
5.4
out of 10

Porthcawl is town in the county borough of Bridgend, Wales, UK.

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 19°C through the month.

A typical August day in Porthcawl reaches about 19°C in the afternoon and slips back to 14°C overnight — a 5°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)
11914
21914
31914
41914
51914
61914
71914
81914
91914
101914
111914
121914
131914
141914
151914
161914
171914
181814
191814
201814
211814
221814
231813
241813
251813
261813
271813
281813
291813
301813
311813

How August really feels in Porthcawl

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.

Porthcawl weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 11515.60.68.11.0
Feb / 8412.50.69.61.1
Mar / 7512.90.411.51.7
Apr12° / 6811.70.113.52.8
May14° / 7212.5015.33.9
Jun17° / 12°7511.8016.35.0
Jul18° / 14°8113.4015.95.5
Aug19° / 14°9313.7014.45.4
Sep17° / 12°8612.3012.44.9
Oct14° / 10°12215.2010.43.4
Nov11° / 12315.808.62.1
Dec / 13015.50.47.71.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33664
43664
53565
63565
73565
83565
93466
103565
113565
123565
133466
143466
153466
163466
173466
183466
193367
203367
213367
223367
233367
243367
253367
263367
273367
283367
293367
303367
313367

Chance of precipitation in August

Any precipitation

Porthcawl gets around 93 mm of rain over 13.7 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 44% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
145
245
345
445
545
645
745
845
945
1044
1144
1244
1344
1444
1545
1645
1745
1845
1945
2045
2145
2244
2344
2443
2542
2641
2741
2840
2939
3039
3138

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 50% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1405091
2414991
34248101
44247101
54345101
64444101
74543111
84642111
94641112
104741112
114740112
124840112
134839112
144839112
154839111
164840111
174940101
184940101
194940101
20504091
21504091
22523981
23523981
24553870
25553870
26573760
27573760
28573760
29593650
30603550
31603550

Wind in August

Winds average 17 km/h in August.

Across August, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 18 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 108 minutes over August. Sunrise moves from 4:43 AM to 5:31 AM, and sunset from 7:59 PM to 6:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.34:437:59
215.24:457:57
315.24:467:55
415.14:487:54
515.04:497:52
615.04:517:50
714.94:527:48
814.94:547:47
914.84:557:45
1014.84:577:43
1114.74:597:41
1214.65:007:39
1314.65:027:37
1414.55:037:35
1514.55:057:33
1614.45:077:31
1714.35:087:29
1814.35:107:27
1914.25:127:25
2014.25:137:23
2114.15:157:21
2214.05:167:19
2314.05:187:16
2413.95:207:14
2513.85:217:12
2613.85:237:10
2713.75:257:08
2813.75:267:05
2913.65:287:03
3013.55:307:01
3113.55:316:59

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.35 kWh/m².

For context, solar energy here swings from a low near 0.65 kWh/m² to a high of 5.5 kWh/m² in June across the year — August's 4.35 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.7Bright
64.7Bright
74.7Bright
84.6Bright
94.6Bright
104.6Bright
114.5Bright
124.5Bright
134.5Bright
144.4Bright
154.4Bright
164.3Bright
174.3Bright
184.3Bright
194.2Bright
204.2Bright
214.2Bright
224.1Bright
234.1Bright
244.1Bright
254.0Bright
264.0Moderate
274.0Moderate
283.9Moderate
293.9Moderate
303.8Moderate
313.8Moderate
Planning a trip in August

Is August a good time to visit Porthcawl?

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

5.4
Sightseeing
2nd-best month of the year
2.1
Beach & pool
1st-best month of the year

August is a reasonable time to visit Porthcawl for sightseeing.

What to pack for Porthcawl in August

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

In August, Porthcawl sees daytime highs around 19°C and nights near 14°C. Worth packing: rain gear. About 14 days see rain.

rain gear

Sea temperature near Porthcawl in August

The nearest coast averages about 18°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 13 km away) is warmest in August at about 18°C and coldest in February near 8°C.

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

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan8Bracing
Feb8Bracing
Mar8Bracing
Apr9Bracing
May12Bracing
Jun14Bracing
Jul17Cool
Aug18Cool
Sep17Cool
Oct15Bracing
Nov12Bracing
Dec10Bracing

UV index in Porthcawl in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Porthcawl 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
Aug7High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Porthcawl?

Porthcawl sits at 51.5°N, 3.7°W, 12 m above sea level, in United Kingdom. The nearest listed city is Bridgend, 9.0 km away.

Topography around Porthcawl

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

Within 3 km, the terrain around Porthcawl has only modest variations in elevation — a maximum elevation change of 95 m around an average of 11 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 381 m; within 80 km, large variations in elevation — a maximum elevation change of 864 m.

The land around Porthcawl is covered by water (57%) and grassland (22%) within 3 km, water (57%) and grassland (20%) within 16 km, and grassland (47%) and water (30%) within 80 km.

3 km
95 m
16 km
381 m
80 km
864 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Bridgend 9.0 km · Coity 11 km · Maesteg 15 km · Briton Ferry 19 km · Neath 22 km · Swansea 23 km · Tonypandy 23 km · Clydach 26 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 Porthcawl (51.479°, -3.7036°, elevation 12 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).