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Porto Weather in September, Portugal


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Porto Averages September

  • What is Average Temperature?
    The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month


  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    High Temperature

  • What is Average High Low Temperature?
    The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

    Low Temperature

  • What is Average Day Temperature?
    The average temperature recorded between sunrise and sunset

    Day Temperature

  • What is Average Night Temperature?
    The average temperature recorded between sunset and sunrise

    Night Temperature

  • What is Average Sea Temperature?
    Average daily sea temperatures and divided by the number of days in the month. Sea Temperatures are taken from buoys, ships and even satellites can calculate sea temperature based on energy that is radiated from the sea's surface

    Sea Temperature

  • What are Average Daily Sunshine Hours?
    Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

    Sunshine Hours

    7 hours
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

    Rainfall Days

    10 days
  • What is Average Rainfall?
    The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years


    60 mm

Porto Daily Averages September

September, 2024

1 Avg 20º 68º
2 Avg 22º 72º
3 Avg 19º 66º
4 Avg 19º 66º
5 Avg 19º 66º
6 Avg 19º 66º
7 Avg 19º 66º
8 Avg 18º 64º
9 Avg 17º 63º
10 Avg 17º 63º
11 Avg 19º 66º
12 Avg 19º 66º
13 Avg 18º 64º
14 Avg 18º 64º
15 Avg 18º 64º
16 Avg 16º 61º
17 Avg 16º 61º
18 Avg 17º 63º
19 Avg 18º 64º
20 Avg 17º 63º
21 Avg 19º 66º
22 Avg 18º 64º
23 Avg 17º 63º
24 Avg 17º 63º
25 Avg 16º 61º
26 Avg 15º 59º
27 Avg 16º 61º
28 Avg 18º 64º
29 Avg 18º 64º
30 Avg 17º 63º
Avg Historical Daily Average

September Weather Averages

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What's the Weather Like in Porto in September

September is the last month of summer and as such, sports an excellent climate, filled with hot and sunny days and just a smidge of rain here and there to cool the lands off.


The average temperature is steady at 19°C (66°F), the same as August. The high average stays well over 24°C on the good days, and the expected low hangs around 14°C, particularly during the nights.

Sunshine Hours

The days keep up to 7 hours of sunshine which is a dip but the chances of sunny days stay well at 39% on average.


Humidity goes slightly up to 78% on average, which makes the end of summer slightly more predisposed to some precipitation. 


Rainfall volume however doesn't exceed 60mm, and chances of rainy days rise to 27%, spread over a total of 10 days.


Chances of cloudy days stay low at 10% on average, leaving plenty of room for people to bask in the sun and enjoy the last few weeks of holiday before plunging into autumn.


The winds barely shift from their southern and southeastern influences, with average speeds of 4m/s, and chances of windy days stay at 6%, not making it easy on any surfers looking to ride some waves on the northern part of the Atlantic coastline.

Sea Temperature

The North Atlantic Ocean keeps its waters friendly and great for swimming, at an average temperature of 18°C (65°F), which is not too warm but great if your purpose is to cool off between those long sunbathing sessions. It's also excellent for paddle boarding and any other water sports, just don't forget to pack some SPF protection, as there is still a minor risk of sun burns if you're not careful. Make sure you try Porto in September, when the summer simply refuses to leave and gives vacationers one last chance to enjoy a holiday by the Portuguese seaside.

Hotels for Porto in September

Pestana Vintage Porto Hotel & World Heritage Site

September is also a good month to enjoy some of those end-of-season special offers, such as the £105 per night offer from Pestana Vintage Porto Hotel & World Heritage Site; this is a splendid resort, a 4-star accommodation in the heart of Porto's historical center, right in the Ribeira Square, in a 16th century building. The suites include spacious bathrooms, double glazed windows and come fitted with free Wi-Fi, flat screen TV and splendid views of the city. Agua D'Ouro serves breakfast every morning, and the Heritage Bar is the hotel's well-known cocktail extravaganza.

1872 River House

The 1872 River House offers wonderful rooms for just £109 per night for couples, along with scenic views of the riverside area and the Dom Luis Bridge. The suites are fitted with air conditioning, flat screen TV, free Wi-Fi and there is also a daily cleaning service provided. The daily breakfast is included in the price, served in a lovely and bright café area. The front desk also offers bike rental facilities and guided tours of the city.

Porto A.S. 1829 Hotel

The Porto A.S. 1829 Hotel is another 4-star delight of the Ribeira District, offering charming suites for £127 per night. This hotel is part of a fully renovated historic building within walking distance of popular landmarks, including the Clerigos Bell Tower and the Sao Bento Station. The rooms are very spacious and feature en suite bathrooms with a bathtub, air conditioning, flat screen TV and free Wi-Fi. Breakfast service is available upon request, and there is also a snack bar available for tapas and refreshing drinks or even wine.

Beaches for September for Porto

Praia do Cabedelo

If the Douro riverside is not enough for your daily dose of water and sunshine in September, you can always make the trip to Praia do Cabedelo in Minho. This is a stupendous beach that stretches for miles and miles of golden sand. You can reach it quite easily from Viana do Castelo if you hop on a small ferry. The area itself is absolutely wonderful, and the town provides a great selection of taverns and terraces for your tummy to enjoy. The shallow entrance and cool deep waters are perfect for both splashing around and swimming.

Praia de Mira

If you stay close to the city, you might as well enjoy some of the beaches that Foz do Douro has to offer. For example, Praia de Mira in Figueira da Foz is amazing; offering a beach with shallow and friendly waters, and a stunning blue lagoon, the entire area freckled with cafes and some very fancy restaurants. You also have access to paddle boats, bike hire and even some wicked pine trails for the more adventurous of you out there.

Restaurants and Bars for Porto in September


You can certainly try the Franganito if you're looking for excellent steak paired with some great local wines. This restaurant has some friendly prices too, ranging from £9 to £21, and specializes as a steakhouse and a pub, so rest assured that there is a rich selection of beers and wines to keep your king-size dish good company. Besides, the atmosphere is great and the people are super friendly, as this place is frequently assaulted by tourists from all over the world.

Jimao Tapas e Vinhos

If you're new to Portuguese cuisine, Jimao Tapas e Vinhos is a good place to start. Their delicious tapas sort of give you an introductory tour into the local flavors, and the atmosphere is incredibly welcoming and pleasant, accentuated by candlelit wooden tables which overlook the colorful Praca da Ribeira. Its mid-range prices are well worth the trip, particularly when some of the dishes involved include a scrumptious cod fish salad, monk fish with an amazing olive sauce and lovely pork tenderloin with mushrooms.

Hard Club

For drinks and casual conversation which might eventually lead to a very fun night out, you should head down to the Hard Club a bar/music club found in a completely tastefully remodeled market. It serves drinks and light meals during the day, but then Friday and Saturday nights go all the way into the wee hours of the morning for live concerts and other wonderful performances.

O Meu Mercedes E Maior Que O Teu

O Meu Mercedes E Maior Que O Teu My Mercedes Is Bigger than Yours, or so goes the name of this 20 year old bar. It's split over two floors and plays a wicked mixture of rock music, usually bringing some live bands in the mix. This spot actually saw the likes of Massive Attack, the Pixies, Placebo and Radiohead perform here before they went on to conquer the entire world!

Things to Do in Porto in September

September is quite a good time to take in all the scenery from the surrounding parts of Porto, its dramatic hillsides perfect for long bike rides and even trekking expeditions. The weather is perfect for picnics on the rockier parts of the coastline as well, and you also always have the option of incorporating a wine tasting into your daily schedule in beautiful Oporto.

Se Cathedral

You certainly have to see the stunning Sé Cathedral, a splendid Romanesque cathedral built in the early 12th century, and constantly hailed by the Tripeiros as one of their city's most precious jewels. Its façade resembles that of a fortress, but its interior is absolutely breath taking, with mindboggling detail in every single piece of religious art mounted in here. Another must see is the beautiful Sao Bento Station, designed with superb glazed tile artwork all over the walls. It was named after an old Benedictine monastery once built on this very spot, and to this day it has remained one of Porto's postcard buildings.