Porto

Douro Valley Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in the Douro Valley, Portugal in September.

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Porto Vila Nova de Gaia Lamego Peso da Régua

Planning a getaway to the Douro Valley, Portugal this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in the Douro Valley in September

The Douro Valley, Portugal is a region in Portugal. September in the Douro Valley generally has warm temperatures, with moderate precipitation. September falls during the summer season.

Temperatures

You can expect warm maximum daytime temperatures of around 24°C (75°F) and nighttime temperatures around 17°C (63°F) in Porto.

For a closer look at conditions across the Douro Valley, Portugal, refer to the map below.

Precipitation

In September, precipitation varies across different areas. From moderate rainfall in Pinhão with an average of 47 mm (1.9 in) to moderate rainfall in Vila Nova de Gaia with 66 mm (2.6 in).

Average sunshine

Most destinations offer generous amounts of sunshine this September. For example, Porto gets approximately 224 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore the Douro Valley by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Best Places to Visit in the Douro Valley in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across the Douro Valley.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in the Douro Valley

What is the weather like in September for some of the most popular destinations in the Douro Valley, Portugal?

Temperature range in the Douro Valley (September)

Precipitation variation in the Douro Valley (September)

Porto

In September Porto generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 17°C (63°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
25°C (77°F)
24°C (75°F)
21°C (70°F)
Min temperature
18°C (64°F)
17°C (63°F)
15°C (59°F)
Monthly sun hours
295 hours
224 hours
182 hours
Monthly rainfall
27 mm (1.1 in)
62 mm (2.4 in)
158 mm (6.2 in)
Monthly rainy days
6 days
9 days
14 days
Weather conditions
perfect
perfect
pleasant
Climate in Porto →

Vila Nova de Gaia

In September Vila Nova de Gaia generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 16°C (61°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
26°C (79°F)
24°C (75°F)
21°C (70°F)
Min temperature
18°C (64°F)
16°C (61°F)
14°C (57°F)
Monthly sun hours
295 hours
224 hours
182 hours
Monthly rainfall
29 mm (1.1 in)
66 mm (2.6 in)
165 mm (6.5 in)
Monthly rainy days
6 days
9 days
14 days
Weather conditions
perfect
perfect
pleasant
Climate in Vila Nova de Gaia →

Lamego

In September Lamego generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 13°C (55°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
28°C (82°F)
25°C (77°F)
19°C (66°F)
Min temperature
15°C (59°F)
13°C (55°F)
10°C (50°F)
Monthly sun hours
295 hours
224 hours
182 hours
Monthly rainfall
26 mm (1 in)
60 mm (2.4 in)
139 mm (5.5 in)
Monthly rainy days
6 days
9 days
14 days
Weather conditions
perfect
perfect
tolerable
Climate in Lamego →

Peso da Régua

In September Peso da Régua generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 13°C (55°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
28°C (82°F)
25°C (77°F)
20°C (68°F)
Min temperature
15°C (59°F)
13°C (55°F)
10°C (50°F)
Monthly rainfall
25 mm (1 in)
58 mm (2.3 in)
134 mm (5.3 in)
Monthly rainy days
6 days
9 days
14 days
Weather conditions
perfect
perfect
pleasant
Climate in Peso da Régua →

Pinhão

In September Pinhão generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 13°C (55°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
29°C (84°F)
25°C (77°F)
20°C (68°F)
Min temperature
15°C (59°F)
13°C (55°F)
10°C (50°F)
Monthly rainfall
20 mm (0.8 in)
47 mm (1.9 in)
109 mm (4.3 in)
Monthly rainy days
6 days
9 days
13 days
Weather conditions
perfect
perfect
pleasant
Climate in Pinhão →

Is your destination not in the list? Have a look at all destinations in the Douro Valley, in Portugal.

In our records: Portugal September extremes

Notable September records observed across cities in Portugal in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • From our sources, the wettest September day in Portugal brought 300 mm (12 in) in Santa Maria Island on September 22, 1982.

Popular cities in September

Day & night temperatures, rainfall and average weather in the Douro Valley in September.

City Weather Day temp Night temp Rainfall
Porto 24°C (75°F) 17°C (63°F) 62 mm (2.4 in)
Vila Nova de Gaia 24°C (75°F) 16°C (61°F) 66 mm (2.6 in)
Lamego 25°C (77°F) 13°C (55°F) 60 mm (2.4 in)
Peso da Régua 25°C (77°F) 13°C (55°F) 58 mm (2.3 in)
Pinhão 25°C (77°F) 13°C (55°F) 47 mm (1.9 in)

The Douro Valley weather in September: frequently asked questions

What is the weather like in the Douro Valley, Portugal in September?

Expect perfect weather across the Douro Valley, Portugal in September. The popular destination of Porto averages 24°C (75°F) by day and 17°C (63°F) at night during this summer month.

What is the average temperature in the Douro Valley, Portugal in September?

Daytime temperatures in Porto peak at roughly 24°C (75°F) in September, dropping to about 17°C (63°F) overnight.

Does the Douro Valley, Portugal get a lot of rain in September?

Rain is generally moderate to light in the Douro Valley, Portugal during September, with Porto averaging close to 62 mm (2.4 in).

Is September a Good Time to Visit the Douro Valley, Portugal?

We believe that September is one of the best times to visit the Douro Valley, Portugal with overall perfect weather in Porto. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, the best visiting conditions can be found in May, June, July, August and September offering mostly perfect weather in Porto. On the other hand, the weather in January, February, March, November and December tend to be unpleasant.

Interested in more climate information?

We have much more information about the climate in the Douro Valley.

Weather and climate has detailed information for every country in the world. Are you going to Portugal? Get detailed historical weather averages for many cities in Portugal.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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