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Lisbon in April: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Lisbon in April will be like? Take a look at our weather guide for Lisbon, based on historical data.
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April

Weather in Lisbon in April 2025

Good Weather
Mild
☀️
Sunny
🌊
Fresh water
Planning a trip to Lisbon in April? You are in luck! The weather is generally good, with an average maximum temperature of +19°C and approximately 11 sunny days. Just be prepared for some rain, as there are usually around 10 rainy days and 67 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+19°C
Avg. max. temperature
+6°C
Min.
+32°C
Max.
67 mm
Total precipitation
71%
Avg. humidity
4 m/s
Avg. wind
11 ☀️
Sunny Days
7 ⛅️
Cloudy
10 🌦
Rainy
Our opinion: Lisbon has good weather in April.

Average temperature in Lisbon in April

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

Going from a maximum of +32°C during the day to a minimum of +10°C during the night, the temperature in April averages around +24°C.

The average maximum temperature goes up 23% by the end of the month, compared with the beginning of the month, from +19°C to +24°C.

Is Lisbon warm or cold in April?

Lisbon is typically mild in April.

Maximum temperatures go up compared to the previous month from +17°C to +19°C. The minimum temperature also goes up from +11°C to +12°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 Lisbon:

Water temperature in Lisbon in April

Water in Lisbon in April is Fresh. It varies from +15°C to +18°C, with an average of +16°C. This is almost similar to the air temperature, which averages +19°C.

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

The warmest water temperatures in Lisbon are reached in October, when the average sea temperature rises to +20°C. The coldest water temperatures are in March, with an average of +15°C.

Can you swim in Lisbon in April?

Water temperature (+16°C) in Lisbon in April might be suited for short swims and acclimatized swimmers might find it refreshing.
🦭
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
Think of bringing a full-body or shorty wetsuit (3mm-5mm thickness) to provide insulation and maintain body heat.

Climate in Lisbon in April

Lisbon weather looks like this, on average, in April and the surrounding months.
MarchAprilMay
Avg. temperature
+17°C+19°C+21°C
Min. temperature
0°C+6°C+8°C
Max. temperature
+28°C+32°C+34°C
Rainfall
61 mm67 mm40 mm
Wind
3 m/s4 m/s4 m/s
Avg. water temperature
+15°C+16°C+17°C
Humidity
71%71%69%
Air pressure
1018 HPa1015 HPa1015 HPa
Sunny days
131114
Cloudy days
778
Rainy days
10107
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 +17°C to +19°C during the day. Prepare for more rain. Average rainfall goes from 61 mm to 67 mm. Humidity levels don’t change as the month goes on, averaging around 71%. Winds are stronger in comparison to March, going up from 3 m/s to 4 m/s on average. The days becoming less sunny, going from 13 sunny days in March to 11 in April.

May brings much the same weather, it remains good.

Wind

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

The average wind speed is 5 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Lisbon is gradually increasing during April, going from 5 m/s to 9 m/s over the course of the month.

Rain

Amount of rainfall in mm during April in Lisbon based on historical data.
Last Year
Historical Data
Typically, there is a 13% chance of rain on an average day in April, with total rainfall of approximately 57 mm. The maximum amount of rainfall per day is around 55 mm, which is considered heavy rain. Lisbon is amazing in April with as little as 4 rainy days on average, so plan adventures in the great outdoors.
Here’s how April is compared with other months in the amount of precipitation, total mm:
Lisbon wettest month is December, where a typical day has a 42% chance of precipitation and 122 mm of rainfall per day. July, on the other hand, is the driest month with a mere 6% chance of precipitation and 2 mm of rainfall per day.

How was the weather last April in Lisbon?

This is the weather in Lisbon in April 2023:
1 April
☁️
+19°C
2 April
☀️
+23°C
3 April
☀️
+21°C
4 April
☀️
+25°C
5 April
☀️
+26°C
6 April
☀️
+26°C
7 April
☀️
+24°C
8 April
☀️
+24°C
9 April
☀️
+25°C
10 April
☀️
+22°C
11 April
☀️
+21°C
12 April
☀️
+19°C
13 April
☀️
+18°C
14 April
☀️
+19°C
15 April
☀️
+24°C
16 April
☀️
+28°C
17 April
☀️
+31°C
18 April
☀️
+28°C
19 April
☀️
+25°C
20 April
☀️
+21°C
21 April
☀️
+18°C
22 April
☀️
+20°C
23 April
☀️
+22°C
24 April
☀️
+26°C
25 April
☀️
+26°C
26 April
☀️
+28°C
27 April
☀️
+32°C
28 April
☀️
+28°C
29 April
☀️
+22°C
30 April
☀️
+24°C
In April 2023 Lisbon had 29 sunny days, 1 cloudy days, and 0 rainy days. The average maximum temperature was +24°C, with an absolute maximum of +32°C and a minimum of +18°C. The average humidity was 73%, with a maximum of 100% and a minimum of 26%. The average wind speed was 5 m/s, with a maximum of 16 m/s and a minimum of 0 m/s.
Are you planning a trip in April?

Climate Change over Years

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

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

The average temperature was the lowest in 1979 (+18°C) and the highest in 2017 (+22°C). The driest year was 1992 with only 298 mm of rainfall, and the wettest year was 2022 with 2338 mm.

FAQ

Frequently asked questions about the weather in Lisbon in April:

Is April a good time to visit Lisbon?

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

Can you sunbathe in Lisbon in April?

April has mild temperatures in Lisbon. 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 Lisbon in April?

In general, you can swim in Lisbon in April, if you want to, at an average water temperature of +16°C. But it will feel quite cool, and some precautions are necessary to ensure your comfort and safety.

Is Lisbon rainy in April?

Lisbon 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 Lisbon in April?

The amount of sunny days in Lisbon during April varies; prepare for a mix of clouds and sun.

Other cities in Portugal

Check out the weather for other cities in Portugal.

Monthly weather in Lisbon

Source of the data

For this page, we’ve looked at the typical weather in Lisbon, 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.