Swansea weather

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The weather guide for Swansea, Wales shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Swansea holiday rentals

Find holiday rentals in Swansea City, Wales including holiday homes, self-catering accommodation, B&Bs, shared space, home swaps and short-term lets.

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Swansea camping & hostels

Looking for camping holidays in Swansea City, Wales? Browse hostels and campsites for camping, glamping, yurts, cabins, tree houses, youth hostels and caravan parks.

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UK & Ireland holidays

When is it hottest in Swansea?

The hottest time of year in Swansea is normally July. Expect maximum daytime temperatures to reach 20°C.

What is the wettest month in Swansea?

In terms of rainfall, December usually gets the most rainfall in Swansea with 140mm on average. In December there are normally 20 days with some rain.

When is it sunniest in Swansea?

The sunniest time of year in Swansea is normally May with bright sunshine on average for 41% of daylight hours; that's 7 hours of sunshine per day.

When is the sea warmest in Swansea?

The sea is usually at its warmest in Swansea in August when the water temperature reaches 18°C.

Metric (°C / mm)  |  Imperial (°F / inches)

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Compare Swansea weather with the USA

Below the Swansea weather chart shows average maximum daytime temperature for Swansea, Wales, UK and the USA (Washington).

Maximum daytime temperature (°C)

Swansea, Wales, UK
USA (Washington)
Jan
Feb
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May
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Jul
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Sep
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Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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Where's hot in Wales right now?

Below are the temperatures expected today at popular destinations in Wales. Select a destination to compare today's forecast with average weather conditions.

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