Rhondda weather in August

In August, Rhondda sees average daytime highs of 18°C and overnight lows near 12°C, with 95 mm of rain across 13.5 wet days and about 14.4 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 11% 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 Rhondda's 4th-clearest and 11th-windiest month. For the whole year in context, see Rhondda's year-round climate.

Daytime high
18°
2nd warmest
Overnight low
12°
12th coldest
Rainfall
95 mm
13.5 wet days
Daylight
14 h 24 min
5:05 AM – 7:31 PM
Cloud cover
73%
4th clearest
Wind
13 km/h
11th windiest
Solar energy
4.26 kWh/m²
Travel score
5.3
out of 10

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 Rhondda reaches about 18°C in the afternoon and slips back to 12°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 16°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)
11912
21912
31912
41912
51912
61912
71912
81912
91912
101912
111912
121912
131912
141912
151912
161812
171812
181812
191812
201812
211812
221811
231811
241811
251811
261811
271811
281811
291811
301811
311811

How August really feels in Rhondda

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.

Rhondda 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 / 11215.31.78.10.6
Feb / 87121.89.60.7
Mar / 8013.31.311.51.5
Apr11° / 8113.20.513.62.6
May14° / 9014.2015.33.7
Jun17° / 10°8712.9016.34.8
Jul19° / 12°8914.3015.95.3
Aug18° / 12°9513.5014.45.3
Sep16° / 10°8311.7012.44.7
Oct13° / 12014.30.110.43.1
Nov / 11415.20.68.61.7
Dec / 12114.21.57.70.8

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% 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 72%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
32971
42971
53070
63070
72971
82971
92971
102971
112971
122971
132971
142971
152872
162773
172773
182773
192674
202674
212674
222674
232674
242773
252773
262773
272773
282872
292872
302872
312872

Chance of precipitation in August

Any precipitation

Rhondda gets around 95 mm of rain over 13.5 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 44% and peaks near 47% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
146
246
346
446
545
645
745
844
944
1044
1144
1244
1344
1445
1545
1646
1746
1847
1947
2046
2146
2245
2344
2443
2542
2641
2740
2839
2938
3037
3136

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 61% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1554050
2544060
3553960
4553960
5553870
6553771
7563671
8563671
9573571
10573571
11583471
12583471
13583471
14583471
15583471
16603370
17603370
18613360
19613360
20613360
21633250
22633250
23653140
24663040
25672940
26682930
27692830
28702730
29722620
30722620
31732520

Wind in August

Winds average 13 km/h in August.

Across August, daily wind ranges from about 13 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
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light 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 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 4:41 AM to 5:30 AM, and sunset from 7:58 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.34:417:58
215.24:437:57
315.24:447:55
415.14:467:53
515.14:487:52
615.04:497:50
715.04:517:48
814.94:527:46
914.84:547:44
1014.84:557:42
1114.74:577:41
1214.74:597:39
1314.65:007:37
1414.55:027:35
1514.55:047:33
1614.45:057:31
1714.45:077:29
1814.35:087:26
1914.25:107:24
2014.25:127:22
2114.15:137:20
2214.05:157:18
2314.05:177:16
2413.95:187:14
2513.95:207:11
2613.85:227:09
2713.75:237:07
2813.75:257:05
2913.65:277:02
3013.55:287:00
3113.55:306:58

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.26 kWh/m².

For context, solar energy here swings from a low near 0.64 kWh/m² to a high of 5.39 kWh/m² in June across the year — August's 4.26 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.7Bright
34.7Bright
44.7Bright
54.6Bright
64.6Bright
74.6Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.4Bright
134.4Bright
144.3Bright
154.3Bright
164.3Bright
174.2Bright
184.2Bright
194.2Bright
204.1Bright
214.1Bright
224.0Bright
234.0Bright
244.0Moderate
253.9Moderate
263.9Moderate
273.9Moderate
283.8Moderate
293.8Moderate
303.8Moderate
313.7Moderate
Planning a trip in August

Is August a good time to visit Rhondda?

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

5.3
Sightseeing
1st-best month of the year
2.0
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Rhondda for sightseeing.

What to pack for Rhondda in August

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

In August, Rhondda sees daytime highs around 18°C and nights near 12°C. Worth packing: rain gear. About 14 days see rain.

rain gear

Sea temperature near Rhondda 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 30 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
May11Bracing
Jun14Bracing
Jul16Cool
Aug18Cool
Sep17Cool
Oct15Cool
Nov12Bracing
Dec10Bracing

UV index in Rhondda 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 Rhondda 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 Rhondda?

Rhondda sits at 51.7°N, 3.4°W, 256 m above sea level, in United Kingdom. The nearest listed city is Tonypandy, 4.0 km away.

Topography around Rhondda

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

Within 3 km, the terrain around Rhondda has significant variations in elevation — a maximum elevation change of 351 m around an average of 314 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 582 m; within 80 km, large variations in elevation — a maximum elevation change of 864 m.

The land around Rhondda is covered by trees (57%) and grassland (34%) within 3 km, grassland (50%) and trees (41%) within 16 km, and grassland (51%) and water (21%) within 80 km.

3 km
351 m
16 km
582 m
80 km
864 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Tonypandy 4.0 km · Aberdare 6.0 km · Pontypridd 10 km · Merthyr Tydfil 11 km · Gelligaer 13 km · Maesteg 15 km · Blackwood 17 km · Coity 17 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 Rhondda (51.659°, -3.4489°, elevation 256 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).