Weather in Leiria in April

Prime time. April is about as good as Leiria gets. Highs average 20.6 °C, lows 10 °C, and rain falls on 10 days — nothing in the month is working against you.

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

Rain on 10 days, 2 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 30.7 °C and the coldest night fell to 3.5 °C, and the wettest single day dropped 29 mm — roughly 45% of the month's rain in one day.

April is moderately variable: 7 mm in the driest year against 169 mm in the wettest, around an average of 64 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.

Wind is light at 7.8 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 75%, high enough to notice on the warm days without dominating them.

How April sits in the year

The month is on the way up: 2.2 °C warmer than March, and May adds another 3.4 °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

13.2 hours of daylight, gaining 1.2 hours across the month. That is between Leiria's extremes of 15 and 9.4 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 14.9 °C in April — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 19.9 °C in August and bottoms out at 14.3 °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

Shoulder. The value months — prices ease off and you get the place closer to itself. April is the value pick for Leiria: it scores within 11 points of June without carrying June's prices.

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

April in Leiria versus nearby

If Leiria is one option among several, the nearby comparison is worth making. Aveiro is the weaker option in April — 2.4 °C cooler, 2 days more rain. Lisbon is close enough to be a coin toss — 3.7 °C cooler, 1 day less rain.

So: April works, with June the better month by 11 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Leiria

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