Climate averages 1991–2020
Acilia-Castel Fusano-Ostia Antica weather
in July.
A warm, fairly dry month: the 2nd warmest and the driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in Acilia-Castel Fusano-Ostia Antica: daytime highs average 27.7°C and nights cool to about 21.2°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 15 mm of rain on roughly 2 days, which makes July a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 14 h 53 min on an average July day.
The nearest other city in this atlas is Fiumicino (8 km away). In July its highs average 27.4°C, about as warm as Acilia-Castel Fusano-Ostia Antica, with 15 mm of rain.
Among the 79 cities listed in Italy, Acilia-Castel Fusano-Ostia Antica ranks joint 64th of 79 for the warmest July highs and joint 16th of 79 for the driest July (rainfall, lowest first). The mean July high of those 79 cities is 28.9°C; Acilia-Castel Fusano-Ostia Antica is 1.2°C cooler than that mean.
From July to August, average highs rise by 0.5°C to 28.3°C, and monthly rainfall rises from 15 mm to 21 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Acilia-Castel Fusano-Ostia Antica climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 12.0°C6.5°C | 6.5°C | 81 | 10.5 | 9.510 h |
| February | 12.3°C6.4°C | 6.4°C | 79 | 9.7 | 10.611 h |
| March | 14.4°C8.2°C | 8.2°C | 72 | 8.6 | 11.912 h |
| April | 16.9°C10.6°C | 10.6°C | 61 | 8.0 | 13.313 h |
| May | 20.8°C14.5°C | 14.5°C | 40 | 6.0 | 14.515 h |
| June | 24.9°C18.4°C | 18.4°C | 22 | 3.3 | 15.215 h |
| July, selected | 27.7°C21.2°C | 21.2°C | 15 | 1.8 | 14.915 h |
| August | 28.3°C21.8°C | 21.8°C | 21 | 2.6 | 13.914 h |
| September | 24.4°C18.6°C | 18.6°C | 86 | 7.8 | 12.513 h |
| October | 20.6°C15.3°C | 15.3°C | 131 | 10.4 | 11.111 h |
| November | 16.4°C11.5°C | 11.5°C | 161 | 13.3 | 9.910 h |
| December | 12.9°C7.9°C | 7.9°C | 115 | 11.7 | 9.29 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Fiumicino in JulyItaly · 8 kmHigh 27.4°C · Low 21.4°C · 15 mm rain
- Rome in JulyItaly · 21 kmHigh 30.0°C · Low 19.4°C · 23 mm rain
- Aprilia in JulyItaly · 33 kmHigh 28.3°C · Low 20.2°C · 19 mm rain
- Guidonia Montecelio in JulyItaly · 41 kmHigh 31.1°C · Low 18.4°C · 28 mm rain
- Latina in JulyItaly · 58 kmHigh 29.1°C · Low 20.0°C · 23 mm rain
- Terni in JulyItaly · 93 kmHigh 31.4°C · Low 18.5°C · 30 mm rain
- Perugia in JulyItaly · 150 kmHigh 28.2°C · Low 16.3°C · 31 mm rain
- Pescara in JulyItaly · 173 kmHigh 28.4°C · Low 19.9°C · 36 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Acilia-Castel Fusano-Ostia Antica) is explained once on the Acilia-Castel Fusano-Ostia Antica year overview and on the Sources, method and limits page.
Fiumicino lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.