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Alghero in May: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Alghero in May will be like? Take a look at our weather guide for Alghero, based on historical data.
Check flight prices to Alghero on Avionero:
May

Weather in Alghero in May 2025

Good Weather
Mild
☀️
Sunny
🌊
Fresh water
Planning a trip to Alghero in May? You are in luck! The weather is generally good, with an average maximum temperature of +21°C and approximately 15 sunny days. Just be prepared for some rain, as there are usually around 7 rainy days and 34 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+21°C
Avg. max. temperature
+4°C
Min.
+33°C
Max.
34 mm
Total precipitation
75%
Avg. humidity
3 m/s
Avg. wind
15 ☀️
Sunny Days
7 ⛅️
Cloudy
7 🌦
Rainy
Our opinion: Alghero has good weather in May.

Average temperature in Alghero in May

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

Going from a maximum of +24°C during the day to a minimum of +14°C during the night, the temperature in May averages around +21°C.

The average maximum temperature goes up 40% by the end of the month, compared with the beginning of the month, from +19°C to +23°C.

Is Alghero warm or cold in May?

Alghero is typically mild in May.

Maximum temperatures go up compared to the previous month from +17°C to +21°C. The minimum temperature also goes up from +11°C to +15°C.

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

Take a look at how May is compared to other months in Alghero:

Water temperature in Alghero in May

Water in Alghero in May is Fresh. It varies from +15°C to +21°C, with an average of +18°C. This is almost similar to the air temperature, which averages +21°C.

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

The warmest water temperatures in Alghero are reached in August, when the average sea temperature rises to +24°C. The coldest water temperatures are in February, with an average of +13°C.

Can you swim in Alghero in May?

Water temperature (+18°C) in Alghero in May 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 Alghero in May

Alghero weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+17°C+21°C+25°C
Min. temperature
-2°C+4°C+10°C
Max. temperature
+31°C+33°C+37°C
Rainfall
48 mm34 mm12 mm
Wind
3 m/s3 m/s2 m/s
Avg. water temperature
+15°C+18°C+22°C
Humidity
77%75%72%
Air pressure
1013 HPa1014 HPa1015 HPa
Sunny days
111520
Cloudy days
675
Rainy days
1174
Snowy days
000

May weather is still as good as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +17°C to +21°C during the day. As May arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 48 mm to 34 mm. It feels drier, as humidity decreases from 77% to 75%. The average wind speed doesn’t change much during May, staying around 3 m/s. The good news is there are likely to be more sunny days in May, from 11 to 15.

But maybe it is worth considering traveling in June as the weather gets better.

Wind

Wind speed in Alghero in May based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Alghero is gradually decreasing during May, going from 2 m/s to 1 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Alghero based on historical data.
Last Year
Historical Data
Typically, there is a 42% chance of rain on an average day in May, with total rainfall of approximately 64 mm. The maximum amount of rainfall per day is around 20 mm, which is considered light rain. May is a pretty wet month with over 13 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of galoshes.
Here’s how May is compared with other months in the amount of precipitation, total mm:
Alghero wettest month is November, where a typical day has a 40% chance of precipitation and 93 mm of rainfall per day. July, on the other hand, is the driest month with a mere 6% chance of precipitation and 4 mm of rainfall per day.

How was the weather last May in Alghero?

This is the weather in Alghero in May 2023:
1 May
☁️
+19°C
2 May
☁️
+18°C
3 May
☀️
+20°C
4 May
☀️
+22°C
5 May
☀️
+21°C
6 May
☀️
+22°C
7 May
☀️
+23°C
8 May
☀️
+20°C
9 May
☀️
+22°C
10 May
☀️
+19°C
11 May
☀️
+19°C
12 May
☁️
+18°C
13 May
🌧️
+18°C
14 May
☁️
+19°C
15 May
☀️
+20°C
16 May
☀️
+21°C
17 May
☀️
+19°C
18 May
☁️
+19°C
19 May
🌧️
+20°C
20 May
🌧️
+19°C
21 May
🌧️
+20°C
22 May
☀️
+22°C
23 May
☀️
+23°C
24 May
☀️
+22°C
25 May
☀️
+22°C
26 May
☀️
+23°C
27 May
☀️
+23°C
28 May
☀️
+24°C
29 May
☀️
+23°C
30 May
☁️
+23°C
31 May
🌧️
+23°C
In May 2023 Alghero had 20 sunny days, 6 cloudy days, and 5 rainy days. The average maximum temperature was +21°C, with an absolute maximum of +24°C and a minimum of +18°C. The average humidity was 82%, with a maximum of 100% and a minimum of 61%. The average wind speed was 2 m/s, with a maximum of 8 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change over Years

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

The climate in Alghero in May has not changed much over the last 43 years.

The average temperature was the lowest in 1980 (+18°C) and the highest in 2017 (+22°C). The driest year was 2017 with only 311 mm of rainfall, and the wettest year was 2010 with 759 mm.

FAQ

Frequently asked questions about the weather in Alghero in May:

Is May a good time to visit Alghero?

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

Can you sunbathe in Alghero in May?

May has mild temperatures in Alghero. 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 Alghero in May?

In general, you can swim in Alghero in May, if you want to, at an average water temperature of +18°C. But it will feel quite cool, and some precautions are necessary to ensure your comfort and safety.

Is Alghero rainy in May?

Alghero is usually dry in May. Plan your packing around outdoor activities and exploring.

Is it sunny in Alghero in May?

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

Other cities in Italy

Check out the weather for other cities in Italy.

Monthly weather in Alghero

Source of the data

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