Perth, Scotland 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 – September
What is the weather like in Perth, Scotland in August?
In August, Perth, Scotland is mild: daytime highs average 18 °C, and nights cool down to about 11 °C. The sea averages 14.5 °C – swimming is only for the hardy. Expect around 5 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 76 mm in total. All in all, August is not an ideal month for a holiday in Perth, Scotland.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 13 | 13 | 14 |
| Day | 18° | 18° | 16° |
| Night | 11° | 11° | 9° |
| Sea | 14° | 15° | 14° |
| Sun | 5 h | 5 h | 4 h |
| Rain days | 14 | 13 | 11 |
More details for August
- Daylight
- 15 h 14 min05:42 – 20:56
- UV index
- 5 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 18 km/haverage daily peakAll months
- Cloud cover
- 73 %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 %0 %
- Sunshineweight 20 %33 %
- Few rainy daysweight 20 %34 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in August
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Perth, Scotland in August: quick answers
Is Perth, Scotland hot in August?
No. In August, Perth, Scotland is mild: daytime highs average 18 °C and nights drop to about 11 °C.
Can you swim in Perth, Scotland in August?
Only if you don't mind cold water: in August the sea averages just 14.5 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Perth, Scotland in August?
Rain is frequent, with about 13 rainy days and 76 mm in total.
Perth, Scotland month by month
The whole year in Perth, ScotlandAll 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