Monthly climate guide
Cagliari weather in August
Expect hot weather in Cagliari in August: afternoons reach about 28°C (83°F), while nights drop to around 24°C (76°F). Around 16 mm of rain falls over the month (very dry), and skies are mostly sunny. Daytime highs are about the same as July and 2°C warmer than September.
What stands out in August
- There's little difference between day and night (around 4°C).
- Just 190 km apart, but Cagliari runs about 3°C cooler than Olbia this month.
- Nights stay warm, rarely below 24°C — air-conditioning helps.
- Rain is well below Cagliari's usual level (around 63% less).
August is typically Cagliari's warmest month.
Avg high
28°C
83°F
Avg low
24°C
76°F
Rainfall
16 mm
very dry
Humidity
68%
relative
Sky
19%
cloud · mostly sunny
Cagliari weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 14°C / 57°F | 11°C / 52°F | 45 mm | 77% | 58% |
| February | 14°C / 57°F | 11°C / 51°F | 54 mm | 77% | 56% |
| March | 15°C / 59°F | 12°C / 53°F | 62 mm | 79% | 57% |
| April | 17°C / 63°F | 14°C / 56°F | 35 mm | 79% | 53% |
| May | 20°C / 68°F | 16°C / 61°F | 43 mm | 76% | 47% |
| June | 24°C / 76°F | 20°C / 69°F | 10 mm | 73% | 28% |
| July | 27°C / 81°F | 23°C / 74°F | 4 mm | 70% | 17% |
| August | 28°C / 83°F | 24°C / 76°F | 16 mm | 68% | 19% |
| September | 26°C / 78°F | 22°C / 72°F | 39 mm | 72% | 40% |
| October | 23°C / 73°F | 19°C / 67°F | 57 mm | 76% | 46% |
| November | 19°C / 65°F | 16°C / 60°F | 99 mm | 78% | 60% |
| December | 16°C / 60°F | 13°C / 55°F | 62 mm | 77% | 51% |
What to pack for August
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- Sunglasses
Is August a good time to visit Cagliari?
Compare the months in the chart above to find your ideal window.
Best time to visit Cagliari →Other Italy cities in August
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Cagliari weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/italy/cagliari/august
<a href="https://weathercompare.eu/weather/italy/cagliari/august">Cagliari weather in August</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/italy/cagliari" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Cagliari weather in August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/italy/cagliari/august">Cagliari weather in August</a> – WeatherCompare</p>
Cagliari in August: quick answers
Is August a good time to visit Cagliari?
August is a reasonable time for Cagliari: highs around 28°C and about 16 mm of rain, though not one of the three best months.
How warm is Cagliari in August?
Average highs are about 28°C (83°F) and average lows about 24°C (76°F), based on 10 years of daily data.
Does it rain a lot in Cagliari in August?
Cagliari typically gets around 16 mm of rain in August — very dry.
Figures are long-term averages for the area around Cagliari (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.