You can expect about 3 to 8 days of rain in Swansea during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Swansea in August 2026.

If you’re planning to visit Swansea in the near future, we highly recommend that you review the 14 day weather forecast for Swansea before you arrive.

Temperatures

13° / 6°

Rainy Days

Snowy Days

Dry Days

Rainfall

Sun Hours

6.6

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
						1 13° /3°
2 13° /3°	3 14° /5°	4 15° /7°	5 10° /3°	6 10° /2°	7 10° /3°	8 10° /2°
9 9° /5°	10 10° /5°	11 8° /2°	12 6° /0°	13 8° /2°	14 7° /1°	15 6° /1°
16 10° /4°	17 10° /7°	18 12° /5°	19 14° /2°	20 13° /3°	21 14° /5°	22 14° /6°
23 14° /3°	24 14° /4°	25 16° /4°	26 15° /6°	27 14° /6°	28 13° /4°	29 15° /4°
30 13° /4°	31 14° /4°

Explore the weather in Swansea in other months

Swansea annual weather

Month	Temperatures	Rainy Days	Dry Days	Rainfall	Weather	More details
January	21° / 13°	3	28	78 mm	Good	Swansea in January
February	20° / 13°	4	25	77 mm	Good	Swansea in February
March	19° / 13°	4	27	99 mm	Good	Swansea in March
April	17° / 11°	2	28	46 mm	Good	Swansea in April
May	15° / 9°	3	28	60 mm	Good	Swansea in May
June	13° / 7°	4	26	79 mm	Ok	Swansea in June
July	12° / 6°	3	28	52 mm	Ok	Swansea in July
August	13° / 6°	4	27	83 mm	Ok	Swansea in August
September	14° / 7°	3	27	75 mm	Good	Swansea in September
October	16° / 8°	3	28	68 mm	Good	Swansea in October
November	18° / 10°	4	26	94 mm	Good	Swansea in November
December	19° / 11°	3	28	70 mm	Good	Swansea in December