September Weather in Varenna, Italy

Last updated: March 24, 2025

September in Varenna, Italy offers a delightful blend of warm days and cooler evenings, with maximum temperatures reaching 25°C (78°F) and an average of 16°C (61°F). As autumn approaches, the temperature can dip to a brisk 4°C (39°F) at night, creating a picturesque atmosphere ideal for cozy evenings. However, visitors should be prepared for occasional rain, as the region experiences about 161 mm (6.3 in) of precipitation over 14 days, contributing to a humidity level of 74%. This combination of mild weather and lush landscapes makes September a charming time to explore the enchanting beauty of Varenna.

September Temperature in Varenna

As summer gently transitions into autumn, September in Varenna, Italy offers a delightful climate that strikes a balance between warmth and crispness. With temperatures ranging from a mild minimum of 4°C (39°F) to a pleasant maximum of 25°C (78°F), this month boasts an average temperature of 16°C (61°F), making it an ideal time for outdoor exploration. The lingering warmth from the summer months begins to wane, yet the weather remains inviting, encouraging visitors to stroll along the picturesque lakeside or explore the charming streets of this historic town. As the days grow shorter, the vibrant hues of autumn begin to emerge, adding an enchanting backdrop to September’s temperate bliss.

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

The chart illustrates September temperature patterns in Varenna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec343843505665686861534436
Data source: Temperature data for Varenna 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 Varenna

September in Varenna, Italy, marks a transitional phase in precipitation patterns, delivering 161 mm (6.3 in) of rainfall over 14 days. This is a noticeable drop from the previous month's 222 mm (8.7 in), highlighting a gradual wind-down of the summer deluge. However, the month still retains significant moisture as autumn begins to take hold. Compared to the wetter summer months, September offers a reprieve while maintaining a robust precipitation profile that emphasizes Varenna's lush landscapes and vibrant flora. As the region prepares for October’s expected increase back to 223 mm (8.8 in), the serene charm of early autumn can be enjoyed, framed by a soothing backdrop of occasional rain.

September Precipitation Trends in Varenna

The chart displays monthly precipitation patterns in Varenna, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4852105162202219187222161223177108
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Varenna

September in Varenna, Italy, witnesses a subtle uptick in humidity, climbing to 74% after the summer's peak. Following several months of declining moisture levels, where July and August enjoy their lowest averages at 67% and 64% respectively, September marks a transition into a more humid autumn. This resurgence is consistent with the trend observed as the year progresses, with humidity levels notably rising again in October to 87%. Such fluctuations create a dynamic atmosphere, where the initial warmth of fall is accompanied by a hint of moisture, making Varenna's picturesque landscape even more enchanting as it shifts into the cooler months.

September Average Humidity in Varenna

This chart illustrates the average monthly humidity levels in Varenna, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%81%76%77%74%71%67%64%74%87%88%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Varenna

As September unfolds in Varenna, Italy, the UV Index stands at a notable 7, placing it in the high exposure category. This marks a slight decrease from the intense summer months, where it peaked at 9, but still calls for caution as burn time is around 25 minutes. The overall trend shows a gradual transition from the extreme sunlight of July and August, providing a brief respite before the cooler autumn months settle in. Visitors should remain vigilant, utilizing sun protection, while still enjoying the lingering warmth of early fall. For more details on UV levels throughout the year, check out Varenna UV Index.

Maximum UV Index Levels in Varenna for September

The chart shows the monthly maximum UV Index (UVI) for Varenna 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.
JanFebMarAprMayJunJulAugSepOctNovDec236689997532
Data source: Varenna 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 Varenna

As summer transitions to autumn, September in Varenna, Italy offers a delightful balance of sunshine, boasting 326 hours of golden light. This month serves as a gentle segue from the peak of summer, where July shines the brightest with 422 hours of sun. Although September experiences a dip in sunlight compared to the vibrant months of June and July, it still radiates warmth and charm, outshining the earlier months of the year. With each day bringing a little less daylight, September invites visitors to relish in quieter streets and breathtaking views, making it an ideal time to explore this picturesque lakeside village while basking in the soft glow of autumn’s approach.

Monthly Sunshine Duration in Varenna: September Highlighted

The September sunshine duration represents the total number of hours Varenna 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.
JanFebMarAprMayJunJulAugSepOctNovDec187h236h311h338h379h403h422h381h326h285h207h209h
Data source: Varenna September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Varenna During September

In Varenna, Italy, September brings a 37% chance of sunny weather, reflecting a slight dip from the summer months. While August enjoys a more optimistic 53%, the onset of fall sees sunshine becoming less frequent as participants transition from summer heat to autumn’s embrace. This trend indicates a gradual decline in sun-soaked days as the year progresses, following the peaks of spring and summer. Despite the lower likelihood, September can still offer beautiful, pleasant days, making it a charming time to explore the lakeside beauty of Varenna.

Percentage of Sunny Days in September in Varenna

The chart illustrates the percentage of sunny days in Varenna 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 Varenna experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec34%42%62%43%42%40%44%53%37%42%41%49%
Data source: Varenna September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Varenna in September

As summer gently fades into autumn, September in Varenna, Italy, marks a transition with around 12 hours of daylight, a noticeable decline from the sun-drenched 15 hours enjoyed in the peak of July and June. This shift reflects a broader trend as the days gradually shorten following the warm months, yet it still allows ample time to soak in the breathtaking scenery of Lake Como. Though the daylight diminishes, September retains a lovely charm, offering a perfect balance of sunlight and cooler breezes, inviting visitors to explore the picturesque streets and enjoy the serene waters before the onset of brisk October days.

Average Daylight Hours in Varenna for September

The chart illustrates the variation in daylight duration in Varenna throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 6m10h 21m11h 56m13h 33m14h 57m15h 39m15h 17m14h 3m12h 29m10h 52m9h 27m8h 42m
Data source: Varenna daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Varenna

As the summer in Varenna gently fades into autumn, September greets visitors with a soft whisper of wind, averaging a peaceful 1.1 m/s (2 mph). This marks a slight decline from the balmy late summer months, where winds hovered around 1.2 to 1.4 m/s (3 to 4 mph), indicating a subtle transition in the atmosphere. From January's brisk beginnings to December's more forceful gusts, the wind patterns throughout the year show a clear rhythm, with September representing one of the calmer spells. As nature begins to prepare for the cooler months ahead, the gentle breezes of September invite exploration and reflection amid the stunning lakeside scenery of Varenna.

Average September Wind Speed in Varenna

The chart displays monthly wind speed patterns in Varenna, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.61.21.41.41.41.21.41.21.1 m/s1.21.41.7
Data source: Varenna September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Varenna Compares to Other Months

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

September and January present stark contrasts in weather conditions. In September, temperatures range from a mild 4°C (39°F) at night to a warm average of 16°C (61°F) and peak at a pleasant 25°C (78°F), with humidity levels around 74% and substantial rainfall of 161 mm (6.3 in) over approximately 14 days. In contrast, January is marked by colder temperatures, with a minimum of -11°C (12°F) and an average of just 1°C (35°F), reaching a maximum of 12°C (53°F). Precipitation is significantly lower in January, totaling 48 mm (1.9 in) over about 7 days, though the humidity is higher at 88%. For more details on the winter conditions, check out Varenna weather in January.

September and February exhibit distinctly different weather conditions. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 25°C (78°F), with an average of 16°C (61°F). This month sees considerable precipitation, totaling 161 mm (6.3 in) over approximately 14 days, and humidity levels hover around 74%. In contrast, February experiences much colder weather, with temperatures ranging from a minimum of -12°C (10°F) to a maximum of 18°C (65°F) and an average of just 3°C (39°F). Precipitation in February is significantly lower at 52 mm (2.0 in) over about 8 days, while humidity remains higher at 81%. For more detailed information, you can check out Varenna weather in February.

In comparison to September, March weather is notably colder, with average temperatures ranging from a minimum of -8°C (17°F) to a maximum of 20°C (68°F) compared to September's more moderate range of 4°C (39°F) to 25°C (78°F). While both months experience considerable precipitation, September sees more rainfall at 161 mm (6.3 in) over approximately 14 days, whereas March has 105 mm (4.1 in) across 11 days. Additionally, humidity levels remain quite similar, with September at 74% and March slightly higher at 76%. For more details on what to expect, you can check out Varenna weather in March.

In comparing the weather of September and April, we observe distinct differences and similarities that characterize each month. September typically boasts a wider temperature range, with minimums around 4°C and maximums reaching 25°C, resulting in an average of 16°C. In contrast, April starts cooler with a minimum temperature of -2°C, yet can also reach up to 23°C, leading to an average of 10°C. Precipitation levels are quite similar, with September receiving 161 mm over 14 days and April slightly more at 162 mm over 13 days, while humidity is slightly higher in April at 77% compared to 74% in September. For those interested in exploring Varenna's climate specifically during this time, further details can be found here: Varenna weather in April.

In comparing the weather patterns of September and May, September generally experiences higher average temperatures, with a minimum of 4°C (39°F) and a maximum of 25°C (78°F), compared to May’s minimum of 1°C (33°F) and a maximum of 26°C (80°F). While September has a lower total precipitation of 161 mm (6.3 in) spread over 14 days, May sees more rainfall at 202 mm (8.0 in) over 19 days. Both months share a similar humidity level of 74%, creating a distinctly humid atmosphere throughout. For more detailed insights into May weather specifics, you can check out Varenna weather in May.

When comparing the weather in September and June, we observe distinct differences in temperature and precipitation patterns. September features a minimum temperature of 4°C (39°F) and an average of 16°C (61°F), reaching a maximum of 25°C (78°F), making it generally cooler than June. In contrast, June starts with a minimum of 8°C (46°F), an average temperature of 18°C (65°F), and can soar up to 33°C (92°F), providing a warmer climate overall. Additionally, September experiences an average precipitation of 161 mm (6.3 in) over 14 days, while June is wetter with 219 mm (8.6 in) across 17 days. The humidity levels are slightly higher in September at 74%, compared to June's 71%. For more information on Varenna weather in June, you can visit Varenna weather in June.

When comparing the weather between September and July, notable differences emerge in temperature and precipitation patterns. September experiences cooler temperatures, with a minimum of 4°C (39°F) and an average of 16°C (61°F), while July boasts warmer conditions, starting at a minimum of 10°C (50°F) and reaching an average of 20°C (68°F). Additionally, July has a higher maximum temperature of 30°C (86°F) compared to September's peak of 25°C (78°F). In terms of precipitation, both months see significant rainfall, but September has slightly less with 161 mm (6.3 in) over 14 days, while July has 187 mm (7.4 in) across 17 days. Despite both months being relatively humid, September's humidity stands at 74%, compared to July's 67%. For a closer look at the specifics of July's climate, visit Varenna weather in July.

In comparing the weather between September and August, September tends to be cooler with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 25°C (78°F), while August experiences warmer temperatures, with a minimum of 10°C (50°F) and a peak of 30°C (86°F). August also sees a significant amount of rainfall, totaling 222 mm (8.7 in) over 17 days, whereas September has slightly less precipitation at 161 mm (6.3 in) over 14 days. Humidity levels are higher in September at 74%, compared to 64% in August, reflecting the transition to cooler weather. For more detailed information, you can check Varenna weather in August.

September and October present a noticeable shift in weather patterns. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 25°C (78°F), averaging around 16°C (61°F), with precipitation totaling 161 mm (6.3 in) over 14 days and a humidity level of 74%. In contrast, October experiences cooler temperatures, with a minimum of 1°C (35°F) and an average of 11°C (53°F), peaking at 23°C (73°F). This month also sees increased precipitation, totaling 223 mm (8.8 in) over 11 days, coupled with higher humidity at 87%. For a detailed look at October weather specifics, you can check out Varenna weather in October.

In comparing the weather between September and November, notable differences emerge. September experiences milder temperatures, with averages around 16°C (61°F) and highs reaching up to 25°C (78°F), while November sees a significant drop, with an average of only 7°C (44°F) and maximums of 16°C (61°F). Precipitation is fairly consistent, with September recording 161 mm over 14 days and November slightly higher at 177 mm over 13 days, indicating a similar level of wet weather. Additionally, November's humidity rises to 88%, compared to September's 74%, which contributes to a colder and more damp atmosphere. For more detailed insights on November weather, check out Varenna weather in November.

September and December present distinct contrasts in weather conditions. September enjoys milder temperatures, with averages around 16°C (61°F) and highs reaching up to 25°C (78°F), making it a comfortable month for outdoor activities. In contrast, December brings a chillier climate, with average temperatures dropping to just 2°C (37°F) and nighttime lows plummeting to -9°C (17°F). While both months experience precipitation, September is significantly wetter with 161 mm (6.3 in) over 14 days, compared to December’s 108 mm (4.2 in) over 9 days. Additionally, December features higher humidity levels, peaking at 85%, contrasting with September’s average of 74%. For a closer look at what to expect, check out Varenna weather in December.

Compare Varenna's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Varenna

As summer transitions into autumn, September in Varenna brings a refreshing change in weather dynamics. The days are pleasantly warm, with temperatures allowing for outdoor exploration, yet the evenings can be quite cool, hinting at the approaching fall. This month experiences a noticeable increase in precipitation compared to the dry summer months, with rainfall occurring on about half the days, contributing to the lush greenery that characterizes the region. The humidity remains relatively high, offering a unique blend of warmth and crispness in the air. For those looking to learn more about how September’s climate compares to the rest of the year, check out the detailed insights available at Varenna Climate.