Ostia Antica Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Ostia Antica.
Climate overview of Ostia Antica
Ostia Antica, Lazio, Italy, sees big temperature differences between seasons, with August peaking at 28°C (82°F) and January dropping to 14°C (57°F).
Annual rainfall is moderate at around 940 mm (37 in), with November being the wettest month. The city also has a distinct dry season from June to August, with warm summers and mild winters. July is the sunniest month, averaging 11.1 hours of sunshine per day.
Ostia Antica Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ostia Antica - and find the best time to visit.
Monthly Temperature in Ostia Antica
Visitors to Ostia Antica can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 28°C (82°F) in August. In January, the coolest month of the year, temperatures drop to a moderate 14°C (57°F).
At night, temperatures range from around 23°C (73°F) in August to 8°C (46°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Ostia Antica
Generally, Ostia Antica experiences moderate precipitation patterns, averaging 940 mm (37 in) yearly. Ostia Antica can be quite wet during November, receiving approximately 163 mm (6.4 in) of precipitation over 15 rainy days.
In contrast, during the driest month (July), you will experience much drier conditions, with 17 mm (0.7 in) of precipitation spread across 4 rainy days. For more details, please visit our Ostia Antica Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Ostia Antica
Ostia Antica can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 11.1 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.7 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Ostia Antica by Month
The relative humidity is high throughout the year in Ostia Antica.
The city experiences its highest humidity in November, reaching 77%. In July, the humidity drops to its lowest level at 72%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Ostia Antica
The mean wind speed over the year ranges from 3 m/s (6 knots) in August to 4 m/s (8 knots) in December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Ostia Antica
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: July and August
- Most sunshine: July
- Fewest rainy days: July and August
- Wettest months: January, February, September, October, November and December, when rainfall is highest.
- Seasonal pattern: A distinct dry season from June to August, with warm summers and mild winters
Frequently asked questions about the climate in Ostia Antica
What is the best time to visit Ostia Antica?
May, June, July, August and September typically offer the most optimal weather in Ostia Antica. In contrast, December tends to have less optimal conditions. Ostia Antica has a distinct dry season from June to August, with warm summers and mild winters.
What temperatures can I expect in Ostia Antica?
Daytime highs range from 14°C (57°F) in January to 28°C (82°F) in August. Nighttime lows range from 8°C (46°F) to 23°C (73°F). Temperatures vary considerably through the year.
How much rain does Ostia Antica get?
Annual rainfall is around 940 mm (37 in). November is the wettest month with 163 mm (6.4 in), while July is the driest with 17 mm (0.7 in).
How sunny is Ostia Antica?
Ostia Antica receives around 2,473 hours of sunshine per year. July is the sunniest month with 332 hours, while December is the cloudiest with just 112 hours. Overall, Ostia Antica enjoys abundant sunshine.
Ostia Antica 3-Day Forecast
Ostia Antica 3-Day Forecast
Ostia Antica on the map
Ostia Antica is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 most beautiful historical towns in Italy
Discover Italy's top 10 historic towns, featuring breathtaking medieval architecture and deep-rooted history, ideal for enthusiasts of extraordinary cities.
Experience mystical Assisi
Assisi is the most famous town in Umbria and best known because of Saints Francis and Clare of Assisi. Many visitors come to see the breathtaking San Francesco basilica.
The Battle of Oranges
This is one of the most unusual festivals in Italy. The festival is held in the middle of winter during the winter carnival. The entire city of Ivrea near Turin turns into a battlefield.
The most beautiful fishing village of Italy
Portofino is the most beautiful fishing village in Italy and maybe even in the world. We absolutely recommend that you add this beautiful place to your bucket list.