Last updated: March 24, 2025
September in Riva, Italy offers a delightful blend of warm temperatures and picturesque landscapes. The maximum temperature can reach a balmy 29°C (85°F), while the average hovers around 22°C (71°F), providing ideal conditions for outdoor activities. Nights cool down to a refreshing 14°C (57°F), perfect for enjoying the serene evenings. However, this month also sees an average of 121 mm (4.8 in) of rain spread over 10 days, contributing to the lush scenery. With a humidity level of 66%, the air feels pleasantly mild, making September a charming time to explore the beauty of Riva.
In September, Riva, Italy, experiences a delightful transition as summer wanes and autumn approaches. With minimum temperatures around 14°C (57°F) and average highs reaching 29°C (85°F), the month strikes a perfect balance between warmth and the crispness of fall. This marks a notable shift from the scorching summer months, where temperatures frequently soared above 30°C (86°F). As the air grows cooler, September offers a refreshing escape for outdoor activities, while still indulging in the lingering sunshine. It's an ideal time to savor the beauty of Riva, as the landscapes begin to take on the rich hues of autumn against a backdrop of pleasant warmth.
September in Riva, Italy, marks a notable peak in precipitation, with 121 mm (4.8 in) of rainfall recorded, making it the wettest month of the year. This increase is particularly striking when compared to the summer months, where rainfall is relatively moderate; for instance, August saw only 58 mm (2.3 in). With 10 days of rain, September's showers contribute significantly to the transition into autumn, as the weather shifts from the dry warmth of summer to cooler, damp conditions. This month not only stands out for its rainfall volume but also reflects a broader trend of increasing precipitation as the year progresses, with the onset of autumn bringing more consistent and heavier rains, paving the way for November's 104 mm (4.1 in) of precipitation.
September in Riva, Italy, marks a shift as summer transitions to autumn, bringing a modest rise in humidity to 66%. This figure is a refreshing change from the notably lower levels of 54% observed in August, signaling the end of hot, dry days. As the year progresses, humidity levels begin to climb again, especially with October's average soaring to 83%, which heralds the return of the more typical, damp Mediterranean climate. This gradual fluctuation showcases Riva's unique seasonal rhythm, where the crispness of fall is tempered by a lingering humidity that enriches the region’s lush landscapes.
As summer transitions to autumn, September in Riva, Italy, sees a notable shift in UV index levels. With a UV index of 7 classified as high, the sun's intensity remains significant, permitting a safer burn time of 25 minutes. This represents a gradual decline from the peak intensity of 9 experienced in July and June, while still far surpassing the gentler UV levels of earlier months like May and April. As visitors bask in the golden sunlight, it's crucial to stay sun smart and aware of the heightened risks associated with prolonged exposure. For those planning outdoor activities, understanding the September UV Index is essential for protection. To learn more, visit Riva UV Index.
UV Risk Categories
In September, Riva, Italy, enjoys a delightful transition from the vibrant summer months, basking in an impressive 337 hours of sunshine. This marks a graceful decline from the blazing days of July and August, which boast 426 and 396 hours respectively, highlighting the region's peak summer brilliance. As autumn approaches, sunshine hours gradually taper off, offering a cozy warmth that complements the early fall scenery. This gradual decrease continues into October, with 300 hours of sun, while November settles down to 233 hours, reflecting the retreat of summer and the onset of winter's embrace. September thus stands out as a captivating bridge between summer's luxurious light and autumn's serene charm.
In Riva, Italy, September boasts a promising 58% chance of sunny weather, making it an ideal time for outdoor activities and exploration. This probability reflects a slight decline from the peak summer months of August, which enjoy a robust 65% sunshine likelihood. However, September still outshines earlier months like April and May, which linger around the mid-40s in terms of sunny days. As the heat of summer gradually gives way to the gentler autumn climate, visitors can anticipate a delightful balance of warmth and sunshine, making September a vibrant and inviting month in this picturesque Italian locale.
As summer gracefully transitions into autumn in Riva, Italy, September heralds a shift in daylight duration, offering about 12 hours of sunlight. This marks a gentle decline from the sun-drenched days of July and August, which boast a generous 15 and 13 hours, respectively. The month retains the warmth of summer while hinting at the cozy embrace of fall, as the daylight hours gradually shorten, leading into October's 10 hours. This gradual reduction not only shapes the beauty of the surrounding landscapes but also encourages a shift in daily activities, inviting locals and visitors alike to savor the fleeting days of sunshine before winter sets in. The interplay between light and shadow in September cultivates a unique ambiance, making it a perfect time to experience the rich cultural tapestry of Riva.
As summer gives way to autumn in Riva, Italy, September brings a gentle shift in the breeze. With an average wind speed of 3.2 m/s (7 mph), this month marks one of the calmest periods of the year, reminiscent of the lighter gusts felt in February and March. While earlier months embraced slightly higher winds, the transition to fall evokes a sense of serenity, as the air cools and the vibrant summer days fade. Interestingly, October nudges up the wind speed again to 4.4 m/s (10 mph), suggesting that the lively autumn months are just around the corner, ready to invigorate the landscape with a vibrant dance of foliage. Thus, September serves as a tranquil prelude to the more spirited winds to come, inviting leisurely reflections and picturesque strolls along the lakeside.
The weather in Riva 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 Riva and find detailed weather information for every month.
September and January exhibit stark contrasts in weather conditions. In September, temperatures range from a mild 14°C (57°F) at the low end to a warm 29°C (85°F) at the peak, with an average of 22°C (71°F). This month experiences considerable rainfall, totaling 121 mm (4.8 in) over about 10 days, alongside a moderate humidity level of 66%. In contrast, January presents a much chillier climate, where temperatures dwindle to a minimum of -1°C (30°F) and reach a maximum of just 13°C (56°F), averaging around 6°C (43°F). Precipitation is significantly lower, with only 29 mm (1.1 in) measured over 4 days, yet the humidity stays high at 87%. For those interested in the specifics of January weather, you can find more details here: Riva weather in January.
In comparing the weather of September and February, a stark contrast emerges. September boasts much warmer temperatures, with a minimum of 14°C (57°F), an average of 22°C (71°F), and a maximum of 29°C (85°F). It experiences significant precipitation, totaling 121 mm (4.8 in) over about 10 days, while maintaining a moderate humidity level of 66%. In contrast, February brings much cooler conditions, with temperatures ranging from a chilly minimum of -1°C (30°F) to a maximum of 15°C (59°F) and an average of just 8°C (46°F). Although February sees less precipitation at 75 mm (2.9 in) over 9 days, the humidity is higher at 79%. For more detailed insights on February weather, you can explore Riva weather in February.
In September, the weather presents a warmer climate with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 29°C (85°F), making it a more agreeable time for outdoor activities. In contrast, March tends to be much cooler, with average temperatures between -2°C (29°F) at night and a maximum of 19°C (66°F) during the day, signaling the transition from winter to spring. Additionally, September sees higher precipitation levels of 121 mm (4.8 in) over about 10 days, while March is drier with only 49 mm (1.9 in) over 7 days. Both months have similar humidity levels, with September at 66% and March slightly higher at 69%. For more detailed information, check out Riva weather in March.
September and April offer contrasting weather experiences. In September, temperatures range from a mild 14°C (57°F) at night to a warm 29°C (85°F) during the day, with an average of 22°C (71°F). However, it also brings more rainfall, totaling 121 mm (4.8 in) over about 10 days, and a humidity level of 66%. In contrast, April features cooler conditions, with temperatures ranging from a chilly minimum of 5°C (41°F) to a pleasant maximum of 23°C (73°F) and an average of 14°C (57°F). It experiences less precipitation at 69 mm (2.7 in) across 8 days, but with slightly higher humidity at 71%. For those interested in a more detailed look at April weather, check out Riva weather in April.
September tends to be warmer than May, with average temperatures reaching around 22°C (71°F) compared to May's 18°C (65°F). The maximum temperatures in September can peak at 29°C (85°F), while May's highest is 26°C (78°F). However, September experiences more precipitation, totaling 121 mm (4.8 in) over approximately 10 days, compared to May's 96 mm (3.8 in) over 13 days. Interestingly, both months have similar humidity levels, with September at 66% and May slightly higher at 70%. For a detailed look at weather in May, check out Riva weather in May.
In comparing the weather between September and June, we observe some notable differences. September features a slightly lower temperature range, with minimums around 14°C (57°F) and maximums reaching 29°C (85°F), while June offers a warmer climate, with minimums of 16°C (61°F) and highs of 32°C (91°F). Additionally, September experiences more rainfall, with 121 mm (4.8 in) spread over approximately 10 days, compared to June's much drier conditions with only 50 mm (2.0 in) over 7 days. Humidity levels are quite similar, hovering around 65-66%, making both months feel fairly comfortable despite the differences in temperature and precipitation. For more detailed information, you can check Riva weather in June.
In comparing the weather between September and July, we see notable differences in temperature and precipitation. July tends to be warmer, with minimum temperatures around 20°C (68°F) and average highs reaching 32°C (89°F), while September cools down with minimums of 14°C (57°F) and maximums of 29°C (85°F). Additionally, July experiences less rainfall than September, with 73 mm (2.9 in) of precipitation compared to September's 121 mm (4.8 in), although both months see precipitation on about 10 days. The humidity is slightly higher in September at 66%, compared to July's 61%. For more specifics about July weather, you can check this link: Riva weather in July.
In comparing the weather between August and September, it's clear that September experiences cooler temperatures, with minimums of 14°C (57°F) and maximums of 29°C (85°F), compared to August's warmer minimums of 17°C (64°F) and maximums of 33°C (91°F). The average temperature in September is around 22°C (71°F), which is notably lower than August's average of 26°C (79°F). Additionally, September sees increased precipitation, with 121 mm (4.8 in) falling over 10 days, while August has only 58 mm (2.3 in) over 7 days. The humidity also rises in September to 66%, compared to 54% in August, making it feel a bit more humid during the transition into fall. For more details on August weather, you can check Riva weather in August.
September and October showcase a noticeable shift in weather, with September displaying warmer temperatures that range from a minimum of 14°C (57°F) to a maximum of 29°C (85°F) and an average of 22°C (71°F). This month also experiences higher precipitation at 121 mm (4.8 in) over about 10 days, accompanied by a humidity level of 66%. In contrast, October brings cooler temperatures, with a minimum of 11°C (52°F), an average of 17°C (63°F), and a maximum of 25°C (77°F). Precipitation decreases to 79 mm (3.1 in), occurring over just 7 days, while humidity levels rise to 83%. For a detailed look at October weather specifics, you can check Riva weather in October.
September typically features warmer temperatures, with minimums around 14°C (57°F) and maximums reaching up to 29°C (85°F), while averaging 22°C (71°F). The month experiences a fair amount of precipitation at 121 mm (4.8 in) over approximately 10 days, alongside a humidity level of 66%. In contrast, November brings cooler weather, with minimum temperatures dropping to 5°C (41°F) and averages around 13°C (55°F), peaking at 19°C (66°F). The precipitation slightly decreases to 104 mm (4.1 in), over around 12 days, but humidity rises to 88%. For more detailed information about the weather in November, you can visit Riva weather in November.
September and December present stark contrasts in weather. In September, temperatures average around 22°C (71°F), peaking at 29°C (85°F), while the humidity is relatively moderate at 66%. With a total precipitation of 121 mm (4.8 in) spread over about 10 days, the month retains a warm and somewhat humid feel.
In contrast, December brings significantly cooler temperatures, with averages dropping to around 8°C (47°F) and maximums only reaching 15°C (60°F). The month experiences higher humidity at 85% and less rainfall, totaling 81 mm (3.2 in) over approximately 12 days. For more details on December weather, you can refer to Riva weather in December.
As September unfolds in Riva, a noticeable shift in weather patterns emerges, marking the transition from the warmth of summer to the crispness of autumn. The temperatures are pleasantly mild, reaching up to 29°C (85°F) during the day while cooling down to a refreshing 14°C (57°F) at night. However, this month also experiences increased precipitation, with around 121 mm (4.8 in) of rain spread across 10 days, revealing a more humid atmosphere at 66% compared to the drier summer months. This blend of warmth and moisture creates a vibrant, dynamic environment, making September an intriguing time to experience Riva's natural beauty. For further insights into the region's weather patterns throughout the year, explore Riva Climate.