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Cagliari in May: Weather, Average temperature and Climate

Take a look at past year’s weather for Cagliari in May and see if it is worth visiting.
Check flight prices to Cagliari on Avionero:
May

Weather in Cagliari in May 2025

Good Weather
Mild
☀️
Sunny
🌊
Fresh water
Are you considering a trip to Cagliari in May? Well, the weather is usually on your side with an average maximum temperature of +22°C and about 15 sunny days. Just keep in mind that there may be some rain, with an average of 6 rainy days and 27 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.

Average weather

☀️
+22°C
Avg. max. temperature
+5°C
Min.
+33°C
Max.
27 mm
Total precipitation
70%
Avg. humidity
4 m/s
Avg. wind
15 ☀️
Sunny Days
7 ⛅️
Cloudy
6 🌦
Rainy
Our opinion: Cagliari has good weather in May.

Average temperature in Cagliari in May

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

The temperature in May is +22°C on average, with a range between a maximum of +28°C during the day and a minimum of +12°C at night.

The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +23°C to +23°C.

Is Cagliari warm or cold in May?

Cagliari is typically mild in May.

Maximum temperatures go up compared to the previous month from +18°C to +22°C. The minimum temperature also goes up from +10°C to +14°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 Cagliari:

Water temperature in Cagliari in May

Water in Cagliari in May is Fresh. It varies from +16°C to +21°C, with an average of +18°C. This is almost similar to the air temperature, which averages +22°C.

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

The warmest water temperatures in Cagliari are reached in August, when the average sea temperature rises to +25°C. The coldest water temperatures are in February, with an average of +14°C.

Can you swim in Cagliari in May?

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

Cagliari weather looks like this, on average, in May and the surrounding months.
AprilMayJune
Avg. temperature
+18°C+22°C+27°C
Min. temperature
+1°C+5°C+10°C
Max. temperature
+27°C+33°C+39°C
Rainfall
35 mm27 mm8 mm
Wind
4 m/s4 m/s4 m/s
Avg. water temperature
+15°C+18°C+22°C
Humidity
74%70%66%
Air pressure
1013 HPa1013 HPa1014 HPa
Sunny days
111520
Cloudy days
774
Rainy days
963
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 +18°C to +22°C during the day. As May arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 35 mm to 27 mm. It feels drier, as humidity decreases from 74% to 70%. The average wind speed doesn’t change much during May, staying around 4 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 Cagliari in May based on historical data.
Last Year
Historical Data

The average wind speed is 4 m/s getting up to 10 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Cagliari is gradually decreasing during May, going from 10 m/s to 3 m/s over the course of the month.

Rain

Amount of rainfall in mm during May in Cagliari based on historical data.
Last Year
Historical Data
A chance of rain on a typical day in May stands at 39%, leading to total precipitation of around 102 mm. The maximum amount of rainfall per day is around 22 mm, which is considered light rain. May is a pretty wet month with over 12 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:
Cagliari wettest month is November, where a typical day has a 33% chance of precipitation and 57 mm of rainfall per day. July, on the other hand, is the driest month with a mere 3% chance of precipitation and 1 mm of rainfall per day.

How was the weather last May in Cagliari?

This is the weather in Cagliari in May 2023:
1 May
☀️
+23°C
2 May
🌧️
+20°C
3 May
☀️
+24°C
4 May
☀️
+23°C
5 May
☀️
+22°C
6 May
☀️
+22°C
7 May
☀️
+25°C
8 May
🌧️
+20°C
9 May
☀️
+23°C
10 May
☀️
+24°C
11 May
☀️
+23°C
12 May
☀️
+21°C
13 May
🌧️
+19°C
14 May
☀️
+21°C
15 May
☀️
+22°C
16 May
☁️
+22°C
17 May
☁️
+22°C
18 May
☁️
+18°C
19 May
🌧️
+19°C
20 May
🌧️
+19°C
21 May
🌧️
+20°C
22 May
☀️
+23°C
23 May
☀️
+24°C
24 May
☀️
+23°C
25 May
☀️
+25°C
26 May
☀️
+27°C
27 May
☀️
+28°C
28 May
☀️
+26°C
29 May
☀️
+23°C
30 May
🌧️
+23°C
31 May
☀️
+23°C
In May 2023 Cagliari had 21 sunny days, 3 cloudy days, and 7 rainy days. The average maximum temperature was +22°C, with an absolute maximum of +28°C and a minimum of +18°C. The average humidity was 76%, with a maximum of 100% and a minimum of 44%. The average wind speed was 4 m/s, with a maximum of 21 m/s and a minimum of 0 m/s.
Are you planning a trip in May?

Climate Change over Years

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

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

The average temperature was the lowest in 1984 (+19°C) and the highest in 2022 (+24°C). The driest year was 1989 with only 134 mm of rainfall, and the wettest year was 2020 with 1145 mm.

FAQ

Frequently asked questions about the weather in Cagliari in May:

Is May a good time to visit Cagliari?

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

Can you sunbathe in Cagliari in May?

May has mild temperatures in Cagliari. 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 Cagliari in May?

In general, you can swim in Cagliari 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 Cagliari rainy in May?

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

Is it sunny in Cagliari in May?

The amount of sunny days in Cagliari 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 Cagliari

Source of the data

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