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Porto in April: Weather, Average temperature and Climate

Discover the weather for Porto in April and if it’s a good time to travel (based on historical data).
Check flight prices to Porto on Avionero:
April

Weather in Porto in April 2025

Good Weather
Mild
🌧️
Rainy
🌊
Cold water
Weather for Porto in April is typically good with an average maximum temperature of +17°C during the day, and approximately 9 sunny days monthly. Typically, there are about 15 rainy days with the total average precipitation that falls in April around 103 mm. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+17°C
Avg. max. temperature
+3°C
Min.
+30°C
Max.
103 mm
Total precipitation
74%
Avg. humidity
3 m/s
Avg. wind
9 ☀️
Sunny Days
5 ⛅️
Cloudy
15 🌦
Rainy
Our opinion: Porto has good weather in April.

Average temperature in Porto in April

Here are the expected maximum, average and minimum temperatures in Porto for April based on the historical data.
Last Year
Historical Data

The expected average maximum temperature in April is +19°C with a maximum of +27°C and a minimum of +7°C.

The average maximum temperature goes up 25% by the end of the month, compared with the beginning of the month, from +16°C to +21°C.

Is Porto warm or cold in April?

Porto is typically mild in April.

Maximum temperatures go up compared to the previous month from +16°C to +17°C. The minimum temperature also goes up from +9°C to +10°C.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how April is compared to other months in Porto:

Water temperature in Porto in April

Water in Porto in April is Cold. It varies from +13°C to +17°C, with an average of +15°C. This is almost similar to the air temperature, which averages +17°C.

In April, water temperatures are average relative to the rest of the year:

The warmest water temperatures in Porto are reached in September, when the average sea temperature rises to +18°C. The coldest water temperatures are in February, with an average of +14°C.

Can you swim in Porto in April?

We would not recommend swimming in Porto in April, the water is very cold (+15°C on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +16°C
🏄‍♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.

Climate in Porto in April

Porto weather looks like this, on average, in April and the surrounding months.
MarchAprilMay
Avg. temperature
+16°C+17°C+19°C
Min. temperature
0°C+3°C+5°C
Max. temperature
+28°C+30°C+33°C
Rainfall
90 mm103 mm80 mm
Wind
3 m/s3 m/s3 m/s
Avg. water temperature
+14°C+15°C+16°C
Humidity
74%74%75%
Air pressure
1017 HPa1014 HPa1015 HPa
Sunny days
11910
Cloudy days
657
Rainy days
131513
Snowy days
000

April weather is still as good as in March. It’s getting warmer as April arrives. The average maximum temperature goes up from +16°C to +17°C during the day. Prepare for more rain. Average rainfall goes from 90 mm to 103 mm. Humidity levels don’t change as the month goes on, averaging around 74%. The average wind speed doesn’t change much during April, staying around 3 m/s. The days becoming less sunny, going from 11 sunny days in March to 9 in April.

Next month (May) brings a further decline in the weather.

Wind

Wind speed in Porto in April based on historical data.
Last Year
Historical Data

The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Porto is gradually increasing during April, going from 2 m/s to 4 m/s over the course of the month.

Rain

Amount of rainfall in mm during April in Porto based on historical data.
Last Year
Historical Data
Total precipitation in April is about 54 mm, with a 23% chance of rain on a typical day. The maximum amount of rainfall per day is around 21 mm, which is considered light rain. On average, there are about 7 rainy days during April, so prepare to bring an umbrella.
Here’s how April is compared with other months in the amount of precipitation, total mm:
Porto wettest month is November, where a typical day has a 50% chance of precipitation and 151 mm of rainfall per day. July, on the other hand, is the driest month with a mere 19% chance of precipitation and 14 mm of rainfall per day.

How was the weather last April in Porto?

This is the weather in Porto in April 2023:
1 April
🌧️
+16°C
2 April
☀️
+17°C
3 April
☀️
+17°C
4 April
☀️
+23°C
5 April
☀️
+21°C
6 April
☀️
+23°C
7 April
☀️
+23°C
8 April
☀️
+21°C
9 April
☀️
+19°C
10 April
☁️
+18°C
11 April
☁️
+17°C
12 April
☁️
+15°C
13 April
☁️
+15°C
14 April
🌧️
+15°C
15 April
☀️
+18°C
16 April
☀️
+23°C
17 April
☀️
+27°C
18 April
☀️
+24°C
19 April
☀️
+19°C
20 April
☀️
+17°C
21 April
☀️
+15°C
22 April
☀️
+17°C
23 April
🌧️
+18°C
24 April
☁️
+19°C
25 April
☀️
+20°C
26 April
☀️
+20°C
27 April
☀️
+24°C
28 April
☀️
+21°C
29 April
☁️
+20°C
30 April
☀️
+21°C
In April 2023 Porto had 21 sunny days, 6 cloudy days, and 3 rainy days. The average maximum temperature was +19°C, with an absolute maximum of +27°C and a minimum of +15°C. The average humidity was 80%, with a maximum of 100% and a minimum of 41%. The average wind speed was 3 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in April?

Climate Change over Years

This is how Porto climate have been changing during last 43 years period.

The climate in Porto in April has not changed much over the last 43 years.

The average temperature was the lowest in 1979 (+17°C) and the highest in 2022 (+20°C). The driest year was 2007 with only 565 mm of rainfall, and the wettest year was 2022 with 1854 mm.

FAQ

Frequently asked questions about the weather in Porto in April:

Is April a good time to visit Porto?

April is a really good time to go to Porto. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Porto.

Can you sunbathe in Porto in April?

April has mild temperatures in Porto. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Can you swim in Porto in April?

Swimming in Porto in April is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.

Is Porto rainy in April?

Porto is often rainy in April. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Porto in April?

Usually, it’s not very sunny in Porto in April, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Portugal

Check out the weather for other cities in Portugal.

Monthly weather in Porto

Source of the data

For this page, we’ve looked at the typical weather in Porto, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.