Cagliari, SARDINIA and its best beaches
Climate - Temperatures and rainfall - Mediterranean Sea
Cagliari: Temperatures during the day, at night, rain and bathing conditions
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January Day temperature  58°F / 14°C |
Night temp.  43°F / 06°C |
Bathing temperature  58°F / 14°C |
Rain  046 mm |
Non-ideal conditions
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February Day temperature 58°F / 14°C |
Night temp. 43°F / 06°C |
Bathing temperature 59°F / 15°C |
Rain 058 mm |
Non-ideal conditions
|
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March Day temperature 61°F / 16°C |
Night temp. 45°F / 07°C |
Bathing temperature 59°F / 15°C |
Rain 043 mm |
Non-ideal conditions
|
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April Day temperature 65°F / 18°C |
Night temp. 49°F / 09°C |
Bathing temperature 59°F / 15°C |
Rain 038 mm |
Non-ideal conditions
|
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May Day temperature 72°F / 22°C |
Night temp. 54°F / 12°C |
Bathing temperature 63°F / 17°C |
Rain 023 mm |
Non-ideal conditions
|
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June Day temperature 79°F / 26°C |
Night temp. 61°F / 16°C |
Bathing temperature 70°F / 21°C |
Rain 010 mm |
Conditions 
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July Day temperature 85°F / 29°C |
Night temp. 65°F / 18°C |
Bathing temperature 79°F / 26°C |
Rain 003 mm |
Conditions   
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August Day temperature 85°F / 29°C |
Night temp. 67°F / 19°C |
Bathing temperature 79°F / 26°C |
Rain 008 mm |
Conditions
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September Day temperature 81°F / 27°C |
Night temp. 63°F / 17°C |
Bathing temperature 76°F / 24°C |
Rain 030 mm |
Conditions
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October Day temperature 74°F / 23°C |
Night temp. 56°F / 13°C |
Bathing temperature 68°F / 20°C |
Rain 056 mm |
Non-ideal conditions
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November Day temperature 65°F / 18°C |
Night temp. 49°F / 09°C |
Bathing temperature 65°F / 18°C |
Rain 056 mm |
Non-ideal conditions
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December Day temperature 59°F / 15°C |
Night temp. 45°F / 07°C |
Bathing temperature 59°F / 15°C |
Rain 056 mm |
Non-ideal conditions
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Sardinia : climate and when to go to Cagliari
Summer temperatures can be scorching, especially in late July and August (around 104°F). August is usually the most tourist month but not crowded.
| January Avoid |
February Avoid |
March Avoid |
April Avoid |
May Avoid |
June Fine |
July Pecfect |
August Pecfect |
September Fine |
October Avoid |
November Avoid |
December Avoid |
When to go? The hottest month for the beach, lazing around and swimming is July. Check the precipitations because showers are possible but the sun returns quickly, otherwise other periods are possible. The coolest month is January, if you can not stand the heat too much. The driest month of the year is July, if you do not like the rain at all.
Click on
Cagliari to display its climate.
Graphs and temperature curves with average precipitation over the year
Precipitation, rainfall, cyclone: SARDINIA
Temperatures of bathing water around Cagliari
Landmarks
Perfect conditions to enjoy the beach. Favorable conditions for enjoying the beach.
Cloudy with sunny spells and thunderstorms.
Very strong tropical or monsoon rains.
Months at risk of cyclones with alerts level 1 to 5. Nice swimming at more than 26°C / 79°F. Everything is perfect for traveling.No cyclone risk for this country
Mediterranean Sea
Climate September 2026
Cagliari sunshine in summer and winter
The sun at its zenith, that means well perpendicular to the surface of the Earth, sending 100% of radiation and heat. Cagliari receives in winter (january), 45% of sun power and 96% during summer time (july).
The average temperature and sunshine deviations between summer and winter are 51%. This large gap means that the temperature at sea varies and that it can be cooler during the winter. A sweater can be nice in the early morning or evening, the fell night in cooler season.
Average temperatures and rainfall for a stay in September
On the left, the averages observed every month of September on the Sardinia beaches. The trends for next month are, slightly lower average daytime temperatures, a bathing water in Mediterranean Sea which loses degrees, more abundant rains with cooler nights.
Sunset and sunrise times for SARDINIA
Local time : September 2026, Saturday 19, 12:58 AM
Sunrise time : 06:11 am, point A
Sunset time : 6:22 pm, point B
Duration of daylight : 12:11 / 24:00
Jet lag : GMT+1
The average monthly UV index of SARDINIA
What is the period of mosquitoes virulence over the year?
Weather forecast for Cagliari
Here are the current 5-day forecasts for Cagliari / Cagliari. Temperatures are spaced 3 hours apart for each day. The summary of the state of the sky gives the trend of the week. The sea temperature at is a monthly average. In lagoons or seashores where the bathing water is shallow, you can add some degrees.
Sunday
September 20, 2026
8 am
69.2°F
21°C
Clear sky
Humidity 76%
Sea 76°F/24°C
Sunday
September 20, 2026
11 am
79.7°F
27°C
Clear sky
Humidity 57%
Sea 76°F/24°C
Sunday
September 20, 2026
2 pm
80.3°F
27°C
Broken clouds
Humidity 61%
Sea 76°F/24°C
Sunday
September 20, 2026
5 pm
78.2°F
26°C
Light rain
Humidity 67%
Sea 76°F/24°C
Sunday
September 20, 2026
8 pm
75.7°F
25°C
Light rain
Humidity 78%
Sea 76°F/24°C
Sunday
September 20, 2026
11 pm
73.2°F
23°C
Clear sky
Humidity 79%
Sea 76°F/24°C
Monday
September 21, 2026
8 am
70°F
22°C
Broken clouds
Humidity 80%
Sea 76°F/24°C
Monday
September 21, 2026
11 am
79.9°F
27°C
Overcast clouds
Humidity 58%
Sea 76°F/24°C
Monday
September 21, 2026
2 pm
85.9°F
30°C
Clear sky
Humidity 39%
Sea 76°F/24°C
Monday
September 21, 2026
5 pm
81.4°F
28°C
Few clouds
Humidity 58%
Sea 76°F/24°C
Monday
September 21, 2026
8 pm
77.4°F
26°C
Clear sky
Humidity 62%
Sea 76°F/24°C
Monday
September 21, 2026
11 pm
73.4°F
24°C
Few clouds
Humidity 81%
Sea 76°F/24°C
Tuesday
September 22, 2026
8 am
68.1°F
21°C
Few clouds
Humidity 85%
Sea 76°F/24°C
Tuesday
September 22, 2026
11 am
79.7°F
27°C
Clear sky
Humidity 54%
Sea 76°F/24°C
Tuesday
September 22, 2026
2 pm
84.8°F
30°C
Clear sky
Humidity 43%
Sea 76°F/24°C
Tuesday
September 22, 2026
5 pm
84.5°F
30°C
Clear sky
Humidity 48%
Sea 76°F/24°C
Tuesday
September 22, 2026
8 pm
79.7°F
27°C
Clear sky
Humidity 56%
Sea 76°F/24°C
Tuesday
September 22, 2026
11 pm
75.5°F
25°C
Clear sky
Humidity 67%
Sea 76°F/24°C
Wednesday
September 23, 2026
8 am
69.6°F
21°C
Clear sky
Humidity 86%
Sea 76°F/24°C
Wednesday
September 23, 2026
11 am
80.9°F
28°C
Clear sky
Humidity 57%
Sea 76°F/24°C
Wednesday
September 23, 2026
2 pm
82.8°F
29°C
Few clouds
Humidity 52%
Sea 76°F/24°C
Wednesday
September 23, 2026
5 pm
80.7°F
28°C
Few clouds
Humidity 62%
Sea 76°F/24°C
Wednesday
September 23, 2026
8 pm
78.4°F
26°C
Few clouds
Humidity 68%
Sea 76°F/24°C
Wednesday
September 23, 2026
11 pm
75.8°F
25°C
Clear sky
Humidity 75%
Sea 76°F/24°C
Thrusday
September 24, 2026
8 am
69.9°F
22°C
Scattered clouds
Humidity 89%
Sea 76°F/24°C
Thrusday
September 24, 2026
11 am
80.9°F
28°C
Overcast clouds
Humidity 61%
Sea 76°F/24°C
Weather uncertainties 2026 to go to Cagliari ?
When traveling in the tropics as a seaside, rain is not welcome. If you see this indicator, with possible storms, that does not mean that it will rain all day long. When we observe the local rainfall, it is either really zero or very weak. Meteorologists prefer to be pessimistic. So observe below, the skies photographed during a week announced stormy in Asia. It did not rain once. I invite you to integrate this parameter before going to Cagliari for a good trip to the sun!
