Weather in Swansea in April

Shoulder season. April is shoulder season in Swansea — cheaper, quieter, and a genuine gamble. Highs sit at 12.1 °C and the day is short; this is an indoors-with-excursions month, not an outdoors-all-day one.

April ranks 6 of 12 in Swansea: past the worst of the year but short of July, which is the month to book if the dates are open.

Rain on 12 days, 2 of them heavy. Enough to need a plan B, not enough to need a plan around it. Layers, and a genuinely waterproof outer — at 12.1 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

Averages flatten a month, and this one hides a few things: the day barely swings — 5.6 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest April day reached 20.2 °C and the coldest night fell to -0.3 °C.

April is moderately variable: 18 mm in the driest year against 129 mm in the wettest, around an average of 60 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.

Wind is light at 14.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 85%, which at 12.1 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.

How April sits in the year

The month is on the way up: 2.7 °C warmer than March, and May adds another 2.7 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in April

13.8 hours of daylight, gaining 1.9 hours across the month. That is between Swansea's extremes of 16.6 and 7.9 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 14.8 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Shoulder. The value months — prices ease off and you get the place closer to itself.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

April in Swansea versus nearby

If Swansea is one option among several, the nearby comparison is worth making. Birmingham is close enough to be a coin toss — within a degree on temperature, 1 day less rain. Manchester is close enough to be a coin toss — within a degree on temperature, 2 days more rain.

So: April works, with July the better month by 17 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Swansea

See all twelve months in Swansea, or where else to go in April.