Porto weather

Our guide to the weather in Porto during October

22

Average high

4

UV Index

249mm

Monthly rainfall

17

Sea temperature

Porto, Portugal is a vibrant coastal city filled with culture and history, making it an ideal destination for American tourists in October. We've looked at the most up-to-date weather data for Porto, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Porto weather in October.

How warm is it in Porto during October?

The temperature reaches around 22℃ during the daytime in October, falling away to 15℃ at night. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.

Does it rain in Porto during October?

On average, there will be 8 rainy days during the month, amounting to 248.8mm in total. That's a lot of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Porto during October?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in October. With warm air temperatures and high humidity, any breeze will feel warm but refreshing.

How warm is the sea in Porto during October?

The water around Porto is around 17℃ during October. It will feel a little on the cool when first entering, but you'll warm up quickly. Most kids will have no problem with this temperature, but those who feel the cold are unlikely to want to swim.

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Weather in Porto

Our month-by-month guide to the weather and climate in Porto

13.5

Porto weather in

January
14.3

Porto weather in

February
16.3

Porto weather in

March
17.8

Porto weather in

April
20.8

Porto weather in

May
22.7

Porto weather in

June
25.2

Porto weather in

July
25.8

Porto weather in

August
24.8

Porto weather in

September
21.6

Porto weather in

October
16.2

Porto weather in

November
14.5

Porto weather in

December