Sun, sea & sand

Civitavecchia weather in May

Temperature, sea and sunshine in May: long-term averages from 30 years of weather data, not a forecast.

51

Holiday weather in May

Fair

Best time to visit: June – September

What is the weather like in Civitavecchia in May?

In May, Civitavecchia is warm: daytime highs average 21 °C, and nights cool down to about 15 °C. The sea averages 18.2 °C – bracing, so a wetsuit helps for longer swims. With around 9 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 44 mm. All in all, May is a so-so month for a holiday in Civitavecchia.

May compared

How the weather changes from April to June. Tap a month to open it.

AprilAprMayMayJuneJun
Score295193
Day17°21°26°
Night11°15°19°
Sea15°18°22°
Sun8 h9 h10 h
Rain days974

More details for May

Daylight
14 h 32 min05:53 – 20:25
UV index
9 · very highclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
20 km/haverage daily peakAll months
Cloud cover
44 %on averageAll months
Hot days
0 days30 °C or moreAll months
Time zone
UTC+2Europe/Rome

How the score comes together

  • Temperatureweight 35 %33 %
  • Seaweight 25 %17 %
  • Sunshineweight 20 %100 %
  • Few rainy daysweight 20 %77 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in May

  • Wetsuit for longer swims
  • Sunscreen
  • Sunglasses & sun hat
  • A jumper for the evenings

Civitavecchia in May: quick answers

Is Civitavecchia hot in May?

Warm rather than hot: in May, daytime highs in Civitavecchia average 21 °C and nights cool to about 15 °C.

Can you swim in Civitavecchia in May?

Only if you don't mind cold water: in May the sea averages just 18.2 °C. Comfortable swimming is possible from June to October.

Does it rain much in Civitavecchia in May?

Rain falls on about 7 days, adding up to 44 mm.

Civitavecchia month by month

Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences