Last updated: March 24, 2025
September in Rome, Italy showcases a delightful blend of warm sunshine and refreshing breezes, with temperatures peaking at a maximum of 33°C (91°F) and averaging a comfortable 22°C (72°F). As summer transitions to fall, nights can be cooler, dipping to a minimum of 8°C (47°F). While the city enjoys a relatively dry month, rainfall does occur, totaling 104 mm (4.1 in) across about 8 days, contributing to a humidity level of 71%. This inviting climate makes September an ideal time to explore Rome’s historic streets and vibrant culture.
In September, Rome experiences a delightful transition into autumn, with temperatures that strike a perfect balance between warmth and coolness. The month begins with a refreshing min of 8°C (47°F), rising to an average of 22°C (72°F) and peaking at a comfortable max of 33°C (91°F). This gradual decline from the intense summer heat makes it an ideal time to explore the city's historic sites and vibrant culture. As the days shorten and the evenings cool down, visitors can relish in the tail end of summer’s warmth while enjoying outdoor cafes and evening strolls through the enchanting streets of Rome.
September marks a notable shift in precipitation patterns in Rome, Italy, with an increase to 104 mm (4.1 in) of rainfall, making it one of the wettest months of the year. This surge contrasts sharply with the dry summer months of July and August, which see only 23 mm (0.9 in) and 17 mm (0.7 in) respectively. With rainfall occurring on about 8 days, September serves as a transitional period, preparing the city for the wetter months ahead. Following this peak, October maintains high precipitation levels at 92 mm (3.6 in), but November escalates further to 161 mm (6.3 in), highlighting a clear upward trend as autumn progresses. Overall, September acts as a bridge, where the dryness of summer yields to the more humid, rain-soaked days of the fall season, invigorating the city with fresh vitality.
September in Rome transitions gracefully from the summer heat, with humidity averaging 71%, making it one of the more comfortable months. Following the peak summer months of July and August, when humidity levels dipped to 70% and 68% respectively, September serves as a bridge to the wetter autumn months. This subtle increase in humidity is mirrored by the rise observed in October at 76%, hinting at the changing seasons. Overall, as the city prepares for its cooler cloak, September offers a refreshing balance, inviting visitors to enjoy Rome's historic charm without the sweltering dampness of mid-summer.
In September, Rome experiences a UV Index of 7, indicating a high level of sun exposure that requires caution. With a recommended burn time of 25 minutes, sun safety becomes essential as the summer heat begins to fade but still holds enough intensity to cause skin damage. This month marks a transition from the very high levels seen in the peak summer months of July and August, where indices soared to 10. As autumn approaches, the UV Index gradually decreases, but it remains important for residents and visitors alike to protect their skin. To learn more about the UV Index throughout the year, visit Rome UV Index.
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As summer gracefully transitions to autumn, September in Rome shines with a delightful 337 hours of sunshine, maintaining a warm embrace from the previous months. This month reflects a slight dip from the height of summer in July and August, which basked in 431 and 398 hours of radiant sunlight respectively. However, compared to early months like January and February, with only 200 and 254 hours of sunshine, September reveals the lingering glow of summer's end. As the city’s iconic sights bask in the soft light of early fall, visitors can enjoy the vibrant atmosphere before the cooler months set in, making it a perfect time to experience Rome’s blend of history and culture.
As September rolls into Rome, the likelihood of sunny weather remains quite promising, with a moderately high 57% chance of sunshine. This trend reflects a gradual cooling from the sweltering summer months, where July and August peak at 69% and 73% respectively. September serves as a transition, balancing warmth and increasing cloud cover as the autumn months approach. This tantalizing blend of mild temperatures and frequent sun invites both tourists and locals to enjoy the city's vibrant outdoor life before the chill of autumn sets in. With a bit of luck, visitors can expect several bright days to explore the historic beauty of Rome.
As summer fades and autumn approaches, September in Rome offers a delightful transition, featuring approximately 12 hours of daylight. This gradual decline from the sun-soaked days of June, which bask in 15 hours of sunlight, reflects the seasonal shift as the city prepares for cooler months ahead. Following the vibrant long summer days, September retains a balance of light and warmth, making it an ideal time for outdoor adventures and leisurely evenings. With daylight reducing steadily from 14 hours in May to 12 hours this month, locals and visitors alike can still enjoy sunny escapades while savoring the enchanting ambiance that early fall brings.
As summer wanes and autumn approaches, September in Rome greets visitors with a gentle breeze, where the average wind speed drops to 1.8 m/s (4 mph). This marks a notable shift from the more invigorating winds of early summer, with both July and August boasting higher velocities of 2.6 m/s (6 mph) and 2.3 m/s (5 mph), respectively. The trend reveals a gradual easing of the wind's presence as the city transitions into fall, creating a serene atmosphere perfect for leisurely strolls through the historic streets. With the winds softening, September offers an ideal backdrop for experiencing Rome's iconic sights in a more tranquil setting, inviting both locals and tourists to bask in the mildness of the season.
The weather in Rome changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Rome and find detailed weather information for every month.
September and January have distinctly different weather patterns. In September, temperatures can range from a mild 8°C (47°F) at night to a warm 33°C (91°F) during the day, with an average of 22°C (72°F). The month experiences about 104 mm (4.1 in) of precipitation over 8 days and a humidity level of 71%. In contrast, January brings cooler conditions, with temperatures dropping to a minimum of -4°C (26°F) and a maximum of 19°C (66°F), averaging around 7°C (45°F). Precipitation is lower at 62 mm (2.4 in) over the same number of days, but humidity rises to 80%. For more detailed information, check out Rome weather in January.
September and February present strikingly different weather patterns. In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 33°C (91°F), with an average of 22°C (72°F). The month experiences 104 mm (4.1 in) of precipitation over about 8 days, while humidity sits at a comfortable 71%. In contrast, February is much cooler, with temperatures dipping as low as -10°C (14°F) and averaging around 9°C (49°F). The maximum temperature peaks at 21°C (69°F), and although February has less total precipitation at 78 mm (3.1 in) over 9 days, humidity remains slightly higher at 73%. For more information, you can check Rome weather in February.
September and March present quite different weather profiles. In September, temperatures range from a mild 8°C (47°F) at night to a warm 33°C (91°F) during the day, with an average of 22°C (72°F). The month sees around 104 mm (4.1 in) of precipitation over approximately 8 days, alongside a humidity level of 71%. In contrast, March experiences cooler conditions, with temperatures dipping as low as -11°C (12°F) and peaking at 23°C (75°F), averaging 11°C (52°F). The precipitation in March is slightly lower at 80 mm (3.2 in), occurring over about 9 days, and humidity is marginally lower at 69%. For more detailed insights, you can check out Rome weather in March.
In September, the weather features a wider temperature range, with minimums around 8°C (47°F) and maximums soaring up to 33°C (91°F), resulting in an average of 22°C (72°F). The month experiences an average precipitation of 104 mm (4.1 in) over 8 days, combined with a humidity level of 71%. In contrast, April brings cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 28°C (82°F), leading to an average temperature of 14°C (57°F). Though April has slightly less precipitation at 69 mm (2.7 in) and spans 9 days of rain, it maintains a higher humidity level of 74%. For more detailed insights, check out Rome weather in April.
In comparing the weather between September and May, September generally experiences warmer temperatures with an average of 22°C (72°F) and maximums reaching up to 33°C (91°F), while May has a cooler average of 18°C (65°F) and can peak at 34°C (93°F). Despite these warm temperatures, September has a slightly higher average precipitation of 104 mm (4.1 in) over 8 days, compared to May's 77 mm (3.0 in) spread across 11 days. Additionally, humidity levels are a bit lower in September at 71%, whereas May sees a higher humidity level of 76%. For more detailed information on May's weather, you can check Rome weather in May.
In comparing the weather of September and June, September tends to have a wider temperature range, with minimums dropping to around 8°C (47°F) and maximums reaching up to 33°C (91°F). In contrast, June has milder minimum temperatures starting at 12°C (54°F) and can peak at 36°C (97°F). While September experiences more precipitation—104 mm (4.1 in) over 8 days—June is considerably drier with only 31 mm (1.2 in) over 5 days. Despite the slightly higher humidity in June at 73%, both months offer warm temperatures, making them popular times to visit. For more detailed information on June weather, check out Rome weather in June.
When comparing the weather in September and July, we see notable differences in temperatures and precipitation patterns. September tends to start cooler with a minimum temperature of 8°C (47°F) and an average temperature of 22°C (72°F), but can reach a maximum of 33°C (91°F). In contrast, July is significantly warmer, with a minimum temperature of 17°C (63°F), an average of 26°C (79°F), and peaks at 37°C (99°F). Furthermore, September experiences more rainfall, totaling 104 mm (4.1 in) over 8 days, while July is much drier, receiving only 23 mm (0.9 in) across just 3 days. Despite the higher temperatures in July, both months have similar humidity levels, around 70-71%. For more details about Rome's July climate, visit Rome weather in July.
In comparing the weather of September and August, we see a noticeable shift in temperatures and precipitation levels. September brings milder temperatures with a minimum of 8°C (47°F) and an average of 22°C (72°F), significantly lower than August's minimum of 15°C (59°F) and average of 27°C (80°F). While September reaches a maximum of 33°C (91°F), August can peak at a scorching 39°C (103°F). Additionally, September experiences more frequent rainfall, with 104 mm (4.1 in) over 8 days, compared to August’s relatively dry 17 mm (0.7 in) over just 4 days. Humidity levels are slightly higher in September at 71%, compared to August's 68%. For more detailed information on August weather patterns, you can check Rome weather in August.
September and October exhibit marked differences in weather patterns, with September generally being warmer and drier. In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 33°C (91°F), with an average of 22°C (72°F), and the month experiences about 104 mm (4.1 in) of precipitation over 8 days. In contrast, October sees slightly cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 30°C (87°F), averaging 17°C (63°F). Precipitation in October is somewhat lower at 92 mm (3.6 in) but occurs over more days, totaling 9. Additionally, the humidity increases in October to 76% compared to September's 71%. For a more detailed look at October weather, you can visit Rome weather in October.
September offers warmer temperatures, with an average of 22°C (72°F) and highs reaching up to 33°C (91°F), while November sees a notable drop, with average temperatures around 13°C (56°F) and maximums only reaching 24°C (75°F). Precipitation increases in November, with 161 mm (6.3 in) of rainfall over 15 days compared to September's 104 mm (4.1 in) over just 8 days. Additionally, humidity rises slightly in November to 79%, compared to September's 71%. This transition marks a significant shift from the summer warmth of September to the cooler, wetter conditions of November, making it essential to prepare for the changing weather. For more detailed insights, check out Rome weather in November.
September marks the transition from summer to autumn with an average temperature of 22°C (72°F) and maximum highs reaching up to 33°C (91°F), accompanied by a relatively comfortable humidity of 71%. However, as the year progresses into December, the weather shifts significantly, with average temperatures dropping to 9°C (48°F) and maximums peaking at 18°C (65°F). December also experiences increased precipitation, totaling 135 mm (5.3 in) over 13 days compared to September's 104 mm (4.1 in) over 8 days, and a higher humidity level of 77%. For more information on the weather specifics for December, check out Rome weather in December.
As the summer fades, September in Rome brings a delightful transition in weather that sets it apart from the hotter months. With mild averages and cooler evenings, it’s a perfect time to explore the city's historic streets without the sweltering heat. Although the month experiences some rainy days, the overall humidity remains manageable, creating a pleasant atmosphere for outdoor activities. This combination of warmth and occasional rainfall gives September a unique charm, making it an ideal month for travelers seeking to enjoy the Eternal City's wonders. For more insights into how weather affects your visit, be sure to check out the detailed Rome Climate.