Weather in Barcelona in April

Prime time. April is about as good as Barcelona gets. Highs average 21 °C, lows 10.8 °C, and rain falls on 8 days — nothing in the month is working against you.

April is the highest-scoring month of the twelve. The nearest rival is May, and the month at the other end of the year is August.

Rain on 8 days, 1 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average April reaches 30 °C. Across the twenty years measured, the hottest April day reached 29.5 °C and the coldest night fell to 3.4 °C, and the wettest single day dropped 56 mm — roughly 112% of the month's rain in one day.

April is moderately variable: 5 mm in the driest year against 172 mm in the wettest, around an average of 50 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.

Wind is light at 8.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 69%.

How April sits in the year

The month is on the way up: 2.7 °C warmer than March, and May adds another 3.7 °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

13.3 hours of daylight, gaining 1.3 hours across the month. That is between Barcelona's extremes of 15.1 and 9.2 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 14.8 °C in April — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 25.5 °C in August and bottoms out at 13.2 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead. If the dates are flexible, September is the trade worth considering — 7 points weaker on weather, and materially quieter.

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

April in Barcelona versus nearby

If Barcelona is one option among several, the nearby comparison is worth making. Palma is the weaker option in April — 3.8 °C cooler, the same number of rain days. Toulouse is the weaker option in April — 3.3 °C cooler, 5 days more rain.

So: April is the answer for Barcelona. If it is booked out or priced out, May is the next best thing at 0 points behind, and August is the month to keep off the shortlist.

Every month in Barcelona

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