Swansea Climate: Weather by Month and Best Time to Visit

Best months for Swansea: June, July, August, September.

Best time to visit

Year at a glance

Jan 4.4 Feb 5.0 Mar 5.1 Apr 5.7 May 6.1 Jun 6.5 Jul 6.5 Aug 6.4 Sep 6.4 Oct 5.3 Nov 4.7 Dec 4.5

Weather by month

Month	Avg high	Avg low	Rainfall	Rainy days	Humidity	Sunshine	Score
January	8°C	5°C	128 mm	17	–	–	4.4
February	8°C	5°C	92 mm	13	–	–	5.0
March	9°C	6°C	83 mm	14	–	–	5.1
April	11°C	7°C	70 mm	12	–	–	5.7
May	13°C	10°C	72 mm	12	–	–	6.1
June	16°C	12°C	79 mm	12	–	–	6.5
July	18°C	14°C	86 mm	14	–	–	6.5
August	18°C	15°C	101 mm	14	–	–	6.4
September	17°C	13°C	96 mm	13	–	–	6.4
October	14°C	11°C	143 mm	17	–	–	5.3
November	11°C	8°C	143 mm	17	–	–	4.7
December	9°C	6°C	145 mm	17	–	–	4.5