Aberystwyth weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Poor
Best time to visit: April – August
What is the weather like in Aberystwyth in August?
In August, Aberystwyth is mild: daytime highs average 18 °C, and nights cool down to about 13 °C. The sea averages 17.6 °C – bracing, so a wetsuit helps for longer swims. Expect around 6 hours of sunshine a day. It rains often – on about 17 days, adding up to 101 mm. All in all, August is not an ideal month for a holiday in Aberystwyth.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 13 | 13 | 10 |
| Day | 18° | 18° | 17° |
| Night | 13° | 13° | 11° |
| Sea | 17° | 18° | 17° |
| Sun | 6 h | 6 h | 5 h |
| Rain days | 16 | 17 | 15 |
More details for August
- Daylight
- 14 h 47 min05:58 – 20:45
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 22 km/haverage daily peakAll months
- Cloud cover
- 72 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+1Europe/London
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %9 %
- Sunshineweight 20 %43 %
- Few rainy daysweight 20 %9 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in August
- Wetsuit for longer swims
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Aberystwyth in August: quick answers
Is Aberystwyth hot in August?
No. In August, Aberystwyth is mild: daytime highs average 18 °C and nights drop to about 13 °C.
Can you swim in Aberystwyth in August?
Only if you don't mind cold water: in August the sea averages just 17.6 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Aberystwyth in August?
It rains often – on about 17 days, adding up to 101 mm.
Aberystwyth month by month
The whole year in AberystwythAll destinations: United KingdomWhere to go in AugustSea temperature in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences