Swansea in August
If August is your window for visiting Swansea, here's what the climate data says you can expect.
The average daily maximum is 15.1 degrees with overnight lows of 7.6 degrees. It's cool but manageable. A jumper handles most of it.
At 15.1 degrees, August sits 3.1 degrees below the annual average of 18.2 degrees.
Rainfall in August averages 64mm over about 10 days. That means roughly a 33% chance of rain on any given day, pack a compact umbrella just in case.
Sunshine-wise, August delivers around 8.6 MJ/m2 of daily solar radiation. UV sits in the moderate category. Sunscreen is still wise, especially if you burn easily.
August scores 2.9/10 on our Comfort Score. It's the tough end of the year weather-wise.
For your suitcase: a decent jumper or fleece, and waterproof gear.
Check the data table below for the full picture, or compare Swansea in August with another destination.
August at a Glance
Temperature Range
Daily temperature range in August. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- A jumper or light cardigan for flexibility
- A warm jumper or fleece for cool mornings and evenings
- Proper rain gear for frequent showers
Coming From Overseas?
How August in Swansea stacks up against major cities around the world.
About 9 degrees cooler and considerably wetter.
About 15 degrees cooler and considerably drier.
About 16 degrees cooler and considerably drier.
How August Compares
Swansea's monthly climate at a glance. August is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 22.7 | 13.3 | 62mm | 9.5 |
| Feb | 24.6 | 13.0 | 22mm | 10.0 |
| Mar | 22.6 | 11.9 | 24mm | 9.4 |
| Apr | 18.2 | 8.8 | 67mm | 5.6 |
| May | 15.1 | 7.6 | 59mm | 2.7 |
| Jun | 12.3 | 6.5 | 40mm | 1.0 |
| Jul | 12.3 | 5.3 | 92mm | 1.0 |
| Aug | 15.1 | 7.6 | 64mm | 2.9 |
| Sep | 15.8 | 7.2 | 46mm | 4.1 |
| Oct | 17.9 | 8.0 | 54mm | 6.0 |
| Nov | 19.8 | 10.6 | 77mm | 7.3 |
| Dec | 21.9 | 12.5 | 95mm | 8.8 |