Monthly climate guide
Cagliari weather in May
Expect mild weather in Cagliari in May: afternoons reach about 20°C (68°F), while nights drop to around 16°C (61°F). Around 43 mm of rain falls over the month (fairly dry), and skies are a mix of sun and cloud. Daytime highs are 3°C warmer than April and 4°C cooler than June.
What stands out in May
- In Cagliari, May is late spring.
- Cagliari is usually about 2°C cooler than Olbia, 190 km away, in May.
- Days and nights are close, only about 4°C apart.
- Temperatures are climbing — June is around 4°C warmer.
Avg high
20°C
68°F
Avg low
16°C
61°F
Rainfall
43 mm
fairly dry
Humidity
76%
relative
Sky
47%
cloud · a mix of sun and cloud
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 May
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A small travel umbrella, just in case
Is May 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 May
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Cagliari weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/italy/cagliari/may
<a href="https://weathercompare.eu/weather/italy/cagliari/may">Cagliari weather in May</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 May"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/italy/cagliari/may">Cagliari weather in May</a> – WeatherCompare</p>
Cagliari in May: quick answers
Is May a good time to visit Cagliari?
May is a reasonable time for Cagliari: highs around 20°C and about 43 mm of rain, though not one of the three best months.
How warm is Cagliari in May?
Average highs are about 20°C (68°F) and average lows about 16°C (61°F), based on 10 years of daily data.
Does it rain a lot in Cagliari in May?
Cagliari typically gets around 43 mm of rain in May — fairly 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.