September Weather in Rimini, Italy

Last updated: March 24, 2025

September in Rimini, Italy offers a delightful transition from summer, with maximum temperatures reaching a warm 31°C (88°F), while the average temperature settles comfortably around 21°C (69°F). Visitors can expect to enjoy sunny days, although a subtle shift brings occasional showers, with precipitation amounting to 93 mm (3.7 in) over approximately 10 days. The humidity level hovers around 66%, providing a refreshing sensation during cooler nights, where temperatures can dip to a minimum of 10°C (50°F). Whether basking in the sun or exploring local attractions, September's weather in Rimini strikes a charming balance between warmth and refreshment.

September Temperature in Rimini

As summer transitions into fall, September in Rimini offers a delightful mix of warm days and cooler nights. With temperatures ranging from a pleasant 10°C (50°F) at night to a daytime high of 31°C (88°F), the month enjoys a comfortable average of 21°C (69°F). This is a noticeable shift from the sweltering heat of August, where temperatures often soared to 36°C (96°F). The moderate climate makes it an ideal time for outdoor activities, as the crowds begin to dissipate but the beaches remain inviting. As you stroll along the shoreline, you can bask in the lingering warmth of late summer while enjoying the crispness that heralds the arrival of autumn.

September Weather in Rimini: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rimini, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec424649556373777769615345
Data source: Temperature data for Rimini generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Rimini

In September, Rimini experiences a notable uptick in precipitation, with an average of 93 mm (3.7 in) spread over 10 days. This marks a significant increase from the drier summer months, where rainfall was relatively low, peaking at 55 mm in July and declining to 49 mm in August. The transition into autumn is apparent, as September's precipitation is the highest recorded for the month, signaling a shift in the weather patterns. As the days grow shorter and temperatures begin to dip, the enhanced rainfall not only replenishes the region’s natural landscapes but also sets the stage for the approaching wetter months ahead, notably November, which ties with September in total precipitation at 95 mm (3.7 in). This trend highlights Rimini's characteristic Mediterranean climate, where vibrant summer days give way to refreshing autumn showers.

September Precipitation Trends in Rimini

The chart displays monthly precipitation patterns in Rimini, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec418158548639554993789578
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rimini

In September, Rimini experiences a noticeable shift in humidity, settling at 66%, marking a transitional phase as summer fades into autumn. This figure reflects a slight increase from the driest months of July and August, which boast 57% and 55% humidity, respectively. However, it remains lower than the wetter months that follow, including October with 79%. Overall, the trend shows a gradual rise in humidity from the summer's peak, indicating a return to the more humid conditions typical of early autumn. Visitors to Rimini in September can expect a beautifully balanced atmosphere, combining warm weather with a refreshing touch of moisture in the air.

September Average Humidity in Rimini

This chart illustrates the average monthly humidity levels in Rimini, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%76%68%70%69%62%57%55%66%79%84%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rimini

As September rolls into Rimini, Italy, the UV Index settles at a high level of 7, indicating that sun safety remains essential. This month sees a slight decline from the sizzling heights of summer, yet it still demands attention, with a burn time of just 25 minutes for fair-skinned individuals. The trend from earlier months illustrates how UV exposure spikes during the summer, peaking in July and June, before gradually tapering off in the fall. As the sun begins to lose its intensity, September serves as a gentle reminder to remain cautious while enjoying the outdoors. For more detailed UV insights, check out the Rimini UV Index.

Maximum UV Index Levels in Rimini for September

The chart shows the monthly maximum UV Index (UVI) for Rimini in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec246789987532
Data source: Rimini September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Rimini

As autumn approaches, September in Rimini offers a delightful transition marked by a generous 339 hours of sunshine. This radiant month follows a peak summer, where July and June bask in over 420 hours, creating vibrant beach days and lively outdoor scenes. Although the sun's embrace slightly wanes compared to the intense warmth of August, September still presents a warm invitation for lingering strolls along the coast. As the season shifts, the gradual decrease in sunshine hours towards October brings a serene, mellow charm to Rimini, making it an ideal time to enjoy the tail end of summer's glory before the cooler months settle in. Whether soaking up the sun or savoring local cuisine, September perfectly balances warmth and tranquility, embodying the essence of Italian coastal beauty.

Monthly Sunshine Duration in Rimini: September Highlighted

The September sunshine duration represents the total number of hours Rimini experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec184h231h316h352h395h422h429h400h339h306h231h222h
Data source: Rimini September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Rimini During September

In Rimini, Italy, September offers a promising 55% chance of sunny weather, making it an inviting time for visitors seeking pleasant late summer vibes. The likelihood of sunshine during this month reflects a steady continuation of warmer weather, following the peak months of July and August, which boast chances of 59% and 63% respectively. After the sun-drenched summer, September maintains a favorable brightness, higher than the earlier spring months like April and May, which sit at 50% and 53%. As autumn approaches, the percentage dips, but September remains one of the last bastions of sunny days before the cloudier months of October and November set in, ensuring that this month remains a delightful choice for a getaway.

Percentage of Sunny Days in September in Rimini

The chart illustrates the percentage of sunny days in Rimini throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Rimini experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec36%49%69%50%53%62%59%63%55%39%24%42%
Data source: Rimini September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rimini in September

As summer gracefully transitions into autumn, September in Rimini, Italy offers a delightful mix of warmth and shorter days, boasting 12 hours of daylight. This marks a gentle decrease from the sun-soaked 15 hours in the peak of June and July, yet remains a striking improvement over the dimmer winter months. The shift in daylight duration reflects the gradual ebb of summer’s energy, with both sunlight and warmth tapering off as Rimini prepares for the cooler months ahead. Visitors can still relish in the pleasant climate while enjoying extended evenings, making September an ideal time to explore the coastal beauty and vibrant culture of this enchanting Italian city.

Average Daylight Hours in Rimini for September

The chart illustrates the variation in daylight duration in Rimini throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 18m10h 28m11h 57m13h 27m14h 45m15h 24m15h 3m13h 54m12h 27m10h 57m9h 37m8h 56m
Data source: Rimini daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Rimini

As summer gives way to autumn in Rimini, Italy, September's winds whisper a gentle farewell to the warm months, averaging just 2.1 m/s (5 mph). This marks a notable decline from the breezy heights of May, when gusts reached their peak at 3.5 m/s (8 mph). Throughout the months leading up to September, the wind speed has remained fairly consistent, oscillating between 2.7 m/s and 3.5 m/s, yet as the seasons shift, tranquility prevails. The softening winds invite leisurely strolls along the coastal promenade, allowing visitors to enjoy the scenic beauty without the distraction of stronger gusts. As October approaches, a slight uptick in winds to 3.3 m/s (7 mph) offers a refreshing change, heralding the arrival of autumn while still preserving the charm of this stunning seaside destination.

Average September Wind Speed in Rimini

The chart displays monthly wind speed patterns in Rimini, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.22.82.92.93.52.72.92.72.1 m/s3.33.02.6
Data source: Rimini September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Rimini Compares to Other Months

The weather in Rimini 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 Rimini and find detailed weather information for every month.

September and January present contrasting weather conditions. In September, temperatures range from a mild 10°C (50°F) at night to a warm average of 21°C (69°F) during the day, peaking at 31°C (88°F). The month experiences approximately 93 mm (3.7 in) of rainfall over about 10 days, with a humidity level of 66%. In stark contrast, January sees significantly cooler temperatures, with lows dropping to -3°C (27°F) and an average of only 6°C (43°F), reaching a maximum of 15°C (59°F). Rainfall is also reduced in January, totaling around 41 mm (1.6 in) over 8 days, but humidity increases to 84%. For more detailed information, you can check Rimini weather in January.

September and February present contrasting weather conditions. In September, temperatures range from a minimum of 10°C (50°F) to a warm maximum of 31°C (88°F), with an average of 21°C (69°F). The month also experiences 93 mm (3.7 in) of precipitation over approximately 10 days, accompanied by a moderate humidity level of 66%. In contrast, February is cooler, with temperatures ranging from -5°C (23°F) to a maximum of 18°C (64°F) and an average of just 8°C (46°F). It sees slightly less precipitation at 81 mm (3.2 in) over about 9 days, but the humidity is higher at 76%. For more insights into February’s climate, you can check Rimini weather in February.

September and March exhibit contrasting weather patterns. September boasts a warmer average temperature of 21°C (69°F) with highs reaching up to 31°C (88°F), while March is much cooler, averaging only 9°C (49°F) and peaking at 20°C (68°F). Precipitation also differs; September receives 93 mm (3.7 in) over approximately 10 days, compared to March's 58 mm (2.3 in) across 7 days. Both months have relatively high humidity, with September at 66% and March slightly higher at 68%. For more details on the weather conditions in March, visit Rimini weather in March.

September tends to have warmer temperatures compared to April, with average highs reaching 31°C (88°F) and lows of 10°C (50°F), whereas April shows a more modest range with a maximum of 24°C (76°F) and a minimum of 1°C (35°F). Despite being a transition month, September brings significant rainfall with about 93 mm (3.7 in) over 10 days, while April experiences less precipitation at 54 mm (2.1 in) across 9 days. Humidity levels are relatively close in both months, sitting at 66% for September and 70% for April. For more detailed information about April weather, you can visit Rimini weather in April.

In comparing the weather between September and May, September tends to be warmer overall, with average temperatures reaching around 21°C (69°F) compared to May's average of 17°C (64°F). September boasts maximum temperatures of up to 31°C (88°F), while May peaks at a more moderate 28°C (82°F). However, both months experience a similar amount of precipitation, with September recording 93 mm (3.7 in) over 10 days and May slightly lower at 86 mm (3.4 in) over 12 days. Humidity is also quite comparable, with September at 66% and May slightly higher at 69%. For more specific details about May weather, you can visit Rimini weather in May.

September and June offer distinct weather experiences, with September displaying a broader temperature range. In September, temperatures can dip as low as 10°C (50°F) and reach highs of 31°C (88°F), while June tends to be slightly warmer, with a minimum of 12°C (54°F) and a maximum of 33°C (92°F). Additionally, September experiences higher precipitation levels, averaging 93 mm (3.7 in) over about 10 days, compared to June's relatively drier conditions with only 39 mm (1.5 in) of rain over 5 days. Humidity also differs slightly, with September at 66% and June at 62%, contributing to a more humid feel later in the summer. For more detailed insights, you can explore Rimini weather in June.

When comparing the weather in September and July, notable differences emerge. September typically experiences a wider temperature range, with minimums around 10°C (50°F) and maximums peaking at 31°C (88°F), resulting in an average of 21°C (69°F). In contrast, July maintains a warmer temperature profile, with minimums averaging 17°C (63°F) and maximums reaching 33°C (92°F), giving it a higher average of 25°C (77°F). Additionally, September sees more rainfall, accumulating around 93 mm (3.7 in) over about 10 days, compared to July's lighter precipitation of 55 mm (2.2 in) across 6 days. Humidity levels also differ, with September at 66% and July at a lower 57%. For those looking for detailed information, check out Rimini weather in July.

When comparing the weather in September to that of August, it's clear that September experiences a notable drop in temperature, with minimums around 10°C (50°F) and an average of 21°C (69°F) versus August's warmer minimum of 15°C (59°F) and average of 25°C (78°F). Additionally, September is characterized by higher humidity levels at 66%, compared to August’s more comfortable 55%. While August offers more intense heat with a maximum temperature reaching 36°C (96°F), September features a milder maximum of 31°C (88°F) and sees increased precipitation, totaling 93 mm (3.7 in) over about 10 days, compared to August's 49 mm (1.9 in) across 6 days. For more details on August weather, check out Rimini weather in August.

September typically experiences warmer weather with average temperatures reaching 21°C (69°F) and maximums peaking at 31°C (88°F), while October sees a notable drop in temperatures, averaging around 16°C (61°F) and peaking at 27°C (81°F). September is also characterized by higher precipitation levels of 93 mm (3.7 in) over approximately 10 days, compared to October's 78 mm (3.1 in) over 8 days. Additionally, October tends to be more humid, with humidity levels rising to 79% compared to September's 66%. For more detailed insights, check out Rimini weather in October.

September and November present contrasting weather patterns. In September, temperatures range from a pleasant 10°C (50°F) at night to a warm 31°C (88°F) during the day, with an average of 21°C (69°F). The month experiences around 93 mm (3.7 in) of precipitation over approximately 10 days, paired with a humidity level of 66%. In contrast, November sees cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 20°C (68°F), averaging just 12°C (53°F). The month also has a similar precipitation level of 95 mm (3.7 in) spread over about 12 days and higher humidity at 84%. These changes highlight the transition from the warmth of early autumn in September to the chill of late fall in November. For more detailed weather insights, check Rimini weather in November.

In September, the weather features a warm climate with average temperatures reaching a comfortable 21°C (69°F), peaking at a maximum of 31°C (88°F). The month experiences around 93 mm (3.7 in) of precipitation over approximately 10 days, with humidity levels at 66%.

In contrast, December brings significantly cooler temperatures, with averages dropping to 7°C (46°F) and maximums of 17°C (63°F). The total precipitation of 78 mm (3.1 in) occurs over about 11 days, alongside a rise in humidity to 83%. This stark shift highlights the transition from the warmth of September to the chill of December. For more detailed information, you can check Rimini weather in December.

Compare Rimini's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Rimini

As summer fades, September in Rimini presents a delightful transition into autumn, marked by warm temperatures that typically peak around 31°C (88°F) during the day, while evenings cool to a comfortable average of 21°C (69°F). Unlike the sultry summer months, this period sees a slight increase in humidity (66%) and some rainfall, with around 10 days experiencing precipitation. In contrast to the drier and hotter weeks of July and August, September offers a refreshing blend of warmth and moderate humidity, creating a pleasant environment for both locals and visitors alike. For more insights on the shifting weather patterns in Rimini, check out the comprehensive resource on Rimini Climate.