September Weather in Montecatini-Terme, Italy

Last updated: March 24, 2025

September in Montecatini-Terme, Italy presents a delightful blend of warmth and mildness, with maximum temperatures soaring to 29°C (85°F) and an average of 18°C (65°F) that invites outdoor exploration. While the days are generally pleasant, visitors should be prepared for occasional rain, as the area experiences 11 rainy days and a total precipitation of 87 mm (3.4 in) throughout the month. With humidity levels around 66%, the atmosphere remains pleasantly refreshing, making September a perfect time to enjoy the thermal baths and scenic landscapes that Montecatini-Terme has to offer.

September Temperature in Montecatini-Terme

In September, Montecatini-Terme enjoys a pleasant transition from the heat of summer to the cooler embrace of autumn. With minimum temperatures around 7°C (44°F) and average highs reaching a comfortable 29°C (85°F), the month offers a delightful blend of warmth and mildness. As summer’s peak fades, the average temperature settles at a refreshing 18°C (65°F), making it an ideal time for outdoor activities and exploring the scenic beauty of this charming Italian town. Compared to the soaring temperatures of July and August, September marks a more temperate shift, inviting visitors to bask in the lingering warmth while enjoying the lush natural surroundings.

September Weather in Montecatini-Terme: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Montecatini-Terme, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394346525968727365564841
Data source: Temperature data for Montecatini-Terme 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 Montecatini-Terme

In September, Montecatini-Terme experiences a notable shift in its precipitation pattern, receiving an average of 87 mm (3.4 in) over approximately 11 days of rain. This increase marks a transition from the dry summer months of July and August, which recorded just 46 mm and 44 mm respectively. As autumn arrives, the rainfall begins to pick up, setting the stage for the wetter months ahead. September's precipitation is a precursor to October's typical downpour of 115 mm (4.5 in), suggesting a gradual but significant shift toward a more humid climate as the region prepares to embrace the cooler, wetter season. This trend highlights the dynamic weather patterns of Montecatini-Terme, where the end of summer heralds the return of regular rainfall.

September Precipitation Trends in Montecatini-Terme

The chart displays monthly precipitation patterns in Montecatini-Terme, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6811710111712861464487115164180
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Montecatini-Terme

In September, Montecatini-Terme begins to transition into the cooler months, and this is reflected in its humidity levels, which rise to 66%. This marks a noticeable increase from the dry summer months of July and August, where humidity dipped to 57% and 55%, respectively. As the region shifts away from the peak summer heat, the air becomes more humid, resembling the conditions found earlier in the year, particularly in April and May, when humidity hovered around 70%. Overall, September acts as a bridge, softening the harsh dryness of summer and preparing for the wetter months ahead, highlighted by higher readings in October and through the winter.

September Average Humidity in Montecatini-Terme

This chart illustrates the average monthly humidity levels in Montecatini-Terme, 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 Montecatini-Terme

In September, Montecatini-Terme experiences a UV Index of 7, categorized as high, which means sun safety is crucial as burn time drops to 25 minutes. This marks a slight decrease from the intense summer months of July and August, where the UV Index peaked at 10. As the sunny days of summer wane, September still demands attention to sun protection, encouraging visitors and locals alike to enjoy the outdoors wisely. With a gradual decline in UV levels leading into October, it’s a perfect time to relish the pleasant weather while being mindful of skin exposure. For more detailed insights on UV levels throughout the year, check out the Montecatini-Terme UV Index.

Maximum UV Index Levels in Montecatini-Terme for September

The chart shows the monthly maximum UV Index (UVI) for Montecatini-Terme 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.
JanFebMarAprMayJunJulAugSepOctNovDec24678101097532
Data source: Montecatini-Terme 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 Montecatini-Terme

In September, Montecatini-Terme, Italy basks in a delightful 341 hours of sunshine, marking a gentle transition from the long, sun-drenched days of summer to the crisper tones of autumn. This month, while slightly lower than the sizzling peaks of July and June, still offers ample beautiful daylight for visitors to enjoy its charming spas and picturesque landscapes. As the summer sun begins to wane, September shines as a notable time for those seeking pleasant weather, with the sun steadily diminishing as the year progresses into October. With its vibrant greenery and lingering warmth, September is a perfect blend of late summer bliss and the onset of autumn’s embrace, inviting travelers to experience the lush beauty of this Italian gem.

Monthly Sunshine Duration in Montecatini-Terme: September Highlighted

The September sunshine duration represents the total number of hours Montecatini-Terme 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.
JanFebMarAprMayJunJulAugSepOctNovDec186h236h314h348h389h421h433h402h341h305h227h214h
Data source: Montecatini-Terme September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Montecatini-Terme During September

In Montecatini-Terme, September presents a promising outlook for sunny weather, boasting a 52% chance of sunshine. This figure reflects a gradual transition from the more consistently sunny summer months, such as July and August, where the likelihood peaks at 55% and 58%, respectively. As summer gives way to autumn, the probability of sun slightly dips but remains favorable compared to the earlier months of the year, like January and February, which see probabilities as low as 28% and 43%. With warm temperatures and relatively clear skies, September is an excellent time to bask in the sun's glow before the cooler fall months settle in.

Percentage of Sunny Days in September in Montecatini-Terme

The chart illustrates the percentage of sunny days in Montecatini-Terme 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 Montecatini-Terme experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec28%43%61%43%35%55%55%59%52%43%32%43%
Data source: Montecatini-Terme September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Montecatini-Terme in September

As summer fades into autumn, September in Montecatini-Terme, Italy, welcomes a gentle transition with 12 hours of daylight. This month marks a slight decline in daylight from the peak of 15 hours experienced in June and July, reflecting the gradual shortening of days. Following the vibrant brightness of late summer, September's milder light paves the way for a more serene atmosphere, reminiscent of the lush landscapes preparing for the cool embrace of fall. This dance of daylight continues into October, where residents will enjoy 10 hours of daylight, further solidifying the seasonal rhythm as the year approaches its close.

Average Daylight Hours in Montecatini-Terme for September

The chart illustrates the variation in daylight duration in Montecatini-Terme 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: Montecatini-Terme daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Montecatini-Terme

As September unfolds in Montecatini-Terme, the gentle whisper of the wind brings a subtle shift in the air, with an average speed of 1.5 m/s (3 mph). This month marks a slight decrease in wind velocity compared to August's mild breezes of 1.7 m/s. Observing the year as a whole, it’s clear that the spring and early summer months typically enjoy a bit more robust air movement, with May recording the highest average at 2.1 m/s (5 mph). As the days grow shorter and autumn approaches, the calming winds of September offer a tranquil backdrop for leisurely strolls and outdoor activities, creating a perfect blend of serenity and nature's embrace.

Average September Wind Speed in Montecatini-Terme

The chart displays monthly wind speed patterns in Montecatini-Terme, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.92.02.02.02.11.51.71.71.5 m/s2.32.41.7
Data source: Montecatini-Terme September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Montecatini-Terme Compares to Other Months

The weather in Montecatini-Terme 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 Montecatini-Terme and find detailed weather information for every month.

September weather is generally milder and more temperate compared to the chill of January. During September, temperatures range from a minimum of 7°C (44°F) to a maximum of 29°C (85°F), with an average of 18°C (65°F). In contrast, January brings much colder conditions, with temperatures ranging from -6°C (22°F) to 14°C (57°F) and an average temperature of just 4°C (39°F). While September experiences 87 mm (3.4 in) of precipitation over about 11 days, January sees slightly less precipitation at 68 mm (2.7 in) over 8 days, but with higher humidity at 84% compared to September's 66%. For a closer look at January weather, check out Montecatini-Terme weather in January.

September and February weather conditions present a stark contrast in temperature and humidity. In September, temperatures range from a pleasant 7°C (44°F) to a warm 29°C (85°F), averaging around 18°C (65°F), with humidity at a moderate 66%. Precipitation is relatively lower, totaling 87 mm (3.4 in) over 11 days. In contrast, February features much colder temperatures, with a minimum of -8°C (18°F) and a maximum of 19°C (66°F), averaging just 6°C (43°F). It experiences higher precipitation (117 mm or 4.6 in) over the same number of days and increased humidity at 76%. For those interested in more details about February weather, you can explore Montecatini-Terme weather in February.

September and March present contrasting weather conditions. In September, temperatures range quite comfortably from a minimum of 7°C (44°F) to a maximum of 29°C (85°F), with an average of 18°C (65°F). This month experiences total precipitation of 87 mm (3.4 in) over 11 days, accompanied by a humidity level of 66%. In contrast, March is significantly cooler; temperatures swing from a minimum of -9°C (16°F) to a maximum of 21°C (71°F), averaging around 8°C (46°F). The precipitation in March is slightly higher at 101 mm (4.0 in), also spread over 11 days, with a humidity of 68%. For a more detailed look at the weather in March, visit Montecatini-Terme weather in March.

When comparing the weather in September and April, a few notable differences emerge. September tends to be warmer overall, with average temperatures ranging from a cool 18°C (65°F) to a maximum of 29°C (85°F), while April's temperatures are cooler, averaging between -4°C (26°F) at night and peaking at 24°C (76°F) during the day. Additionally, April experiences slightly more precipitation, with 117 mm (4.6 in) over 12 days compared to September's 87 mm (3.4 in) over 11 days, and it also has a touch higher humidity at 70% versus September's 66%. For more detailed information on April weather in Montecatini-Terme, you can check this link: Montecatini-Terme weather in April.

When comparing the weather in September and May, September generally offers warmer conditions, with average temperatures reaching 18°C (65°F) compared to May's average of 15°C (59°F). Both months experience similar maximum temperatures, peaking at around 29°C (84°F to 85°F). However, September is less rainy than May, with only 87 mm (3.4 in) of precipitation over 11 days, while May sees greater precipitation at 128 mm (5.0 in) across 17 days. Humidity levels are slightly higher in May, at 69%, compared to 66% in September. For a more detailed look at May weather, you can check Montecatini-Terme weather in May.

In comparing the weather of September and June, we can observe notable differences in temperature and precipitation. September features a wider temperature range, with overnight lows dipping to 7°C (44°F) and daytime highs reaching up to 29°C (85°F), while June maintains milder temperatures, with a minimum of 10°C (50°F) and a maximum of 33°C (91°F). Additionally, September experiences more precipitation, totaling 87 mm (3.4 in) over 11 days, compared to June's 61 mm (2.4 in) over 9 days. Interestingly, the humidity in September is slightly higher at 66% compared to 62% in June, contributing to a more humid atmosphere as summer transitions to fall. For more specific details about June weather, you can visit Montecatini-Terme weather in June.

In comparing the weather of September and July, we see distinct differences in temperature and precipitation patterns. September experiences a broader range of temperatures, with a minimum of 7°C (44°F) and a maximum of 29°C (85°F), resulting in an average of 18°C (65°F). This month also witnesses more rainfall, totaling 87 mm (3.4 in) over 11 days, and higher humidity at 66%. In contrast, July boasts milder nights with a minimum of 11°C (53°F) and warmer days, averaging 22°C (72°F) and peaking at 33°C (93°F). Rainfall is significantly lower in July, with only 46 mm (1.8 in) over 9 days and a humidity level of 57%. For more details on July weather, you can check Montecatini-Terme weather in July.

In comparing the weather between September and August, September experiences cooler temperatures, with a minimum of 7°C (44°F) and an average of 18°C (65°F), compared to August's milder minimum of 12°C (53°F) and average of 23°C (73°F). August boasts higher maximum temperatures, reaching up to 33°C (91°F) versus September's peak of 29°C (85°F). Additionally, September tends to be wetter, with 87 mm (3.4 in) of precipitation over 11 days, while August has only 44 mm (1.7 in) over 8 days. Humidity levels also differ, with September at 66% compared to August's 55%. For more insights about August weather, you can refer to Montecatini-Terme weather in August.

September and October present a notable transition in weather patterns. In September, temperatures range from a minimum of 7°C (44°F) to a maximum of 29°C (85°F), with an average of 18°C (65°F). The month sees around 87 mm (3.4 in) of precipitation over 11 days, and humidity levels are at 66%. By October, the temperatures drop further, with a minimum of 4°C (39°F) and a maximum of 23°C (73°F), averaging 13°C (57°F). The precipitation increases to 115 mm (4.5 in) over 12 days, accompanied by higher humidity at 79%. For more detailed weather insights, you can check out Montecatini-Terme weather in October.

September and November showcase a notable contrast in weather conditions. In September, temperatures range from a mild 7°C (44°F) at night to a warm 29°C (85°F) during the day, with an average of 18°C (65°F). The month receives 87 mm (3.4 in) of precipitation over 11 days, accompanied by a humidity level of 66%. In stark contrast, November sees a drop in temperatures, with nighttime lows dipping to -1°C (30°F) and daytime highs reaching only 18°C (64°F), averaging 9°C (48°F). Precipitation increases significantly to 164 mm (6.4 in) across 14 days, and humidity rises to 84%. For more detailed weather information, refer to Montecatini-Terme weather in November.

September and December present strikingly different weather conditions. In September, temperatures range from a mild 7°C (44°F) at night to a warm average of 18°C (65°F) during the day, with occasional peaks at 29°C (85°F). The month sees about 87 mm (3.4 in) of rainfall over 11 days, and humidity levels hover around 66%. In contrast, December experiences much colder temperatures, with a minimum of -4°C (25°F) and an average of only 5°C (41°F), peaking at 15°C (59°F). Precipitation increases significantly to 180 mm (7.1 in) spread over 14 days, coupled with higher humidity at 83%. For more details on December's conditions, visit Montecatini-Terme weather in December.

Compare Montecatini-Terme's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Montecatini-Terme

As September unfolds in Montecatini-Terme, the weather transitions into a delightful blend of warm days and cooler evenings, making it stand out from the scorching summer months. With average temperatures hovering around a comfortable 18°C (65°F) and the occasional peak reaching up to 29°C (85°F), it offers a more temperate ambiance for visitors. While rainfall may increase slightly, with about 11 days of precipitation totaling 87 mm (3.4 in), the overall humidity remains manageable at 66%. This gentle shift creates an ideal setting for exploring the region’s natural beauty and indulging in its renowned therapeutic waters. For a deeper dive into the weather patterns and their impact, check out the detailed Montecatini-Terme Climate.