Weather in Leiria in October

Prime time. If you get to pick your dates, October is the one. Highs average 23.7 °C, lows 13.4 °C, and rain falls on 11 days — nothing in the month is working against you.

October ranks 7 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 11 days, 3 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

The averages here are honest — no hidden extremes worth planning around. Across the twenty years measured, the hottest October day reached 34 °C and the coldest night fell to 5.6 °C, and the wettest single day dropped 81 mm — roughly 86% of the month's rain in one day.

October is moderately variable: 10 mm in the driest year against 171 mm in the wettest, around an average of 94 mm. Roughly two Octobers in three land near that average, and the third does something else entirely.

Wind is light at 7.1 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 October sits in the year

The month is on the way down: 4.6 °C cooler than September, with November dropping another 5.6 °C. The first week and the last are not the same trip. Rain has already shifted: 6 days more than September had.

Daylight in October

11.2 hours of daylight, losing 1.3 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 19.2 °C in October — swimmable, but it takes a moment to commit. 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.

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

October in Leiria versus nearby

If Leiria is one option among several, the nearby comparison is worth making. Aveiro is close enough to be a coin toss — within a degree on temperature, 2 days more rain. Lisbon is close enough to be a coin toss — 3.3 °C cooler, the same number of rain days.

So: October works, with June the better month by 14 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 October.