Last updated: March 24, 2025
In June, Siena, Italy experiences a delightful blend of summer warmth and occasional rain, with average temperatures hovering around 22°C (71°F). Highlights include a peak temperature soaring to 36°C (96°F), perfect for sun-seekers, while cooler nights can dip down to a refreshing 9°C (49°F). The month sees 38 mm (1.5 in) of rain spread over 6 days, contributing to a moderate humidity level of 62%. This combination creates an inviting climate for exploring Siena's rich history and stunning architecture under the Italian sun.
In June, Siena basks in the warmth of early summer, with temperatures significantly rising from the cooler months. The minimum temperature starts at a comfortable 9°C (49°F), while the average climbs to a delightful 22°C (71°F), culminating with highs reaching up to 36°C (96°F). This month marks a transition from the mild spring to the sweltering summer, showcasing a substantial increase from May's warmer temps. The rising temperatures encourage outdoor activities and cultural festivals, making it an ideal time to experience Siena's vibrant atmosphere and stunning architecture under sunny skies.
In June, Siena experiences a noticeable dip in precipitation, with only 38 mm (1.5 in) of rain falling over 6 days. This marks a significant decrease compared to the wetter months preceding it, such as May, which saw 91 mm (3.6 in) across 13 days. This trend indicates the onset of summer, where the warmth begins to dominate the landscape, allowing for clearer skies and more sunshine. The gradual reduction in rainfall continues into July and August, suggesting that the dry season is well underway in this charming Italian city. Statistically, June's light showers can be a refreshing respite, creating an inviting atmosphere for both locals and visitors to enjoy the beauty of Siena under the warm sun.
In June, Siena, Italy experiences a notable decline in humidity, averaging 62%, showcasing a transition towards the drier summer months. This drop follows a progressive decrease from 84% in January, steadily easing down through the spring. The cooler periods of January to May, marked by humidity levels between 69% and 84%, give way to more comfortable conditions in June, leading into even lower levels of 57% in July and 55% in August. This trend reflects the region's shift from the damp chill of winter to the warmth of summer, making June a particularly pleasant time to explore the historic charm of Siena.
As summer settles in, June brings a significant shift in Siena's UV Index, soaring to a remarkable 10, placing it firmly in the very high exposure category. This leap from May's UV Index of 8 highlights the importance of sun safety, as the recommended burn time drops to just 15 minutes. It's a stark contrast to the earlier months, where residents and visitors enjoyed comparatively safe levels of UV radiation. The trend continues into July, where the UV Index remains at its peak of 10, before slightly decreasing in August. For those planning to bask in the Tuscan sun, it’s essential to stay informed and protected; for more detailed information on daily UV levels, check out Siena UV Index. Enjoy the vibrant long days, but never underestimate the power of the sun!
UV Risk Categories
June brings a delightful peak of sunshine to Siena, Italy, with an impressive 417 hours of sunlight that outshine all previous months. The gradual ascent begins in January with a modest 185 hours, steadily climbing through spring's embrace, where each month significantly adds to the warm glow. As the calendar flips to June, you can truly bask in the abundance of sunshine, marking a vibrant transition into summer. This trend continues into July, which boasts even more hours of sunlight at 432 hours, encapsulating the region's allure. As the days linger longer, Siena transforms into a sun-kissed paradise, inviting both locals and travelers to relish in its radiant energy.
As summer approaches, the likelihood of sunny weather in Siena, Italy, sees a noticeable rise, with June boasting a 58% chance of sunshine. This marks an uplift from the more variable conditions of earlier months, such as April and May, when the probabilities hovered around 45% and 43%, respectively. The trend suggests that as the calendar turns to summer, residents and visitors alike can increasingly revel in the warm, sun-kissed days. With July and August reaching even higher probabilities at 64% and 66%, June serves as a perfect prelude to the sun-drenched charm of Tuscany’s summer, inviting everyone to embrace the outdoors and soak in the beauty of this historic city.
In June, Siena basks in a delightful 15 hours of daylight, marking the peak of the year for sunlight hours. This upward trend begins in the early months with 9 hours in January and steadily increases as spring unfolds, with daylight extending to 14 hours in May. As summer approaches, the days reach their zenith in June, offering ample light for exploration and outdoor activities. Following June, daylight gradually diminishes, with 14 hours in July and 13 hours in August, signaling the transition toward fall. This dynamic shift in daylight not only enhances the beauty of the Tuscan landscape but also sets the stage for a vibrant summer filled with warmth and brightness.
In June, the winds in Siena, Italy, take on a gentler demeanor, with an average speed of just 1.8 m/s (4 mph), marking it as the calmest month of the year. This notable dip in wind intensity from May’s steady 2.6 m/s (6 mph) creates a serene atmosphere, perfect for embracing the warm comforts of early summer. As the year progresses into July and August, the winds gradually regain strength, fluctuating between 2.1 m/s and 2.3 m/s, but they never quite return to the robust speeds seen in the cooler months. This trend reflects a seasonal shift, where Tuscany's picturesque landscapes invite leisurely strolls and outdoor explorations, all under the gentle caress of the summer breeze.
The weather in Siena changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of June's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Siena and find detailed weather information for every month.
June and January exhibit stark contrasts in weather. In June, temperatures range from a chilly minimum of 9°C (49°F) to a scorching maximum of 36°C (96°F), with an average of 22°C (71°F). The month experiences relatively low precipitation at 38 mm (1.5 in) over 6 days and maintains a humidity level of 62%. In contrast, January is much colder, starting with a minimum temperature of -5°C (23°F) and reaching a maximum of 15°C (59°F), with an average temperature of just 5°C (41°F). Although precipitation is slightly higher at 44 mm (1.7 in) across 7 days, the humidity is notably greater at 84%. For more detailed insights, you can check out Siena weather in January.
June and February present stark contrasts in weather conditions. In June, temperatures typically range from a mild 9°C (49°F) at night to a warm 36°C (96°F) during the day, with an average of 22°C (71°F). Although precipitation is relatively low at 38 mm (1.5 in) over about 6 days, humidity levels are comfortable at 62%. In comparison, February is much cooler, with temperatures dipping as low as -5°C (23°F) and peaking at a mild 20°C (68°F), averaging around 7°C (46°F). February also sees higher precipitation, totaling 68 mm (2.7 in) across approximately 8 days, and a higher humidity level of 76%. For more detailed insights on February weather, you can refer to Siena weather in February.
In comparing the weather of June and March, we see a striking contrast in temperatures and precipitation patterns. June experiences much warmer conditions, with average temperatures around 22°C (71°F) and maximums reaching up to 36°C (96°F), while March offers a much cooler climate, with an average of only 9°C (49°F) and max temperatures peaking at 23°C (73°F). Precipitation is slightly higher in March at 61 mm (2.4 in) over 8 days, compared to June's 38 mm (1.5 in) over 6 days. Humidity levels are also higher in March at 68%, compared to 62% in June. For those interested in the specifics of March weather, you can find more details here: Siena weather in March.
June weather showcases a significant warmth compared to April, with temperatures ranging from a chilly minimum of 9°C to a scorching maximum of 36°C, averaging around 22°C. In contrast, April starts out quite cold, with temperatures dipping to -3°C, peaking at 26°C, and averaging 12°C. While June experiences less precipitation at 38 mm over 6 days, April has a notably wetter climate with 81 mm of rain spread across 10 days. Humidity levels are also slightly higher in April at 70%, compared to June's average of 62%. For a closer look at April weather specifics, visit Siena weather in April.
June typically offers warmer temperatures than May, with minimums starting at 9°C (49°F) compared to May’s cooler 3°C (37°F). The average high in June can reach a sweltering 36°C (96°F), significantly higher than May's maximum of 31°C (89°F). However, June experiences less rainfall, with only 38 mm (1.5 in) spread over 6 days, while May has nearly double that at 91 mm (3.6 in) over 13 days, leading to higher humidity levels in May at 69% compared to June's 62%. For a more detailed look at May weather, you can visit Siena weather in May.
In June, temperatures range from a cool 9°C (49°F) at night to a warm average of 22°C (71°F), with daytime highs peaking at 36°C (96°F). The month sees about 38 mm (1.5 in) of precipitation over 6 days, accompanied by a humidity level of 62%. By July, the weather becomes slightly warmer, with minimum temperatures rising to 13°C (56°F) and an average of 24°C (76°F), while still reaching a maximum of 36°C (97°F). Precipitation remains the same at 38 mm (1.5 in) over 6 days, but humidity decreases to 57%. For more detailed insights, visit Siena weather in July.
June and August showcase distinct but pleasant weather patterns. In June, temperatures range from a minimum of 9°C (49°F) to a maximum of 36°C (96°F), with an average of 22°C (71°F). The month experiences about 38 mm (1.5 in) of precipitation over six days, alongside a humidity level of 62%. In contrast, August offers slightly warmer conditions, with minimums of 12°C (53°F), averages of 25°C (77°F), and maximums reaching up to 37°C (99°F). Precipitation decreases to 34 mm (1.3 in) across just five days, while the humidity also drops to 55%. For a more detailed look at the weather during this time, you can visit Siena weather in August.
June and September present distinct weather patterns. In June, temperatures range from a mild 9°C (49°F) at night to a warm 36°C (96°F) during the day, with an average of 22°C (71°F). This month sees relatively low precipitation at 38 mm (1.5 in) over about 6 days, and humidity hovers around 62%. In contrast, September experiences cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 32°C (90°F), averaging 20°C (69°F). However, it receives more rainfall at 84 mm (3.3 in) over 9 days and slightly higher humidity at 66%. For more detailed insights into September weather, visit Siena weather in September.
In June, the weather is typically warm with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 36°C (96°F), offering an average of 22°C (71°F). The month experiences relatively light precipitation, averaging 38 mm (1.5 in) over about six days, and has a moderate humidity level of 62%. In contrast, October brings cooler temperatures with a minimum of 5°C (40°F) and a maximum of 27°C (81°F), resulting in a much lower average of 15°C (59°F). Precipitation increases significantly to 91 mm (3.6 in) across eight days, with humidity rising to 79%. For a closer look at October weather specifics in Siena, you can visit Siena weather in October.
June and November present starkly contrasting weather patterns. In June, temperatures range from a pleasant 9°C (49°F) at night to a sweltering 36°C (96°F) during the day, accompanied by relatively low precipitation of 38 mm (1.5 in) over about 6 days. The humidity sits at a comfortable 62%, making it a favorable month for outdoor activities. In contrast, November brings much cooler temperatures, with a minimum of -3°C (27°F) and an average of just 11°C (51°F). It experiences significantly higher rainfall, totaling 148 mm (5.8 in) across 15 days, and a higher humidity level of 84%. For more details, you can check Siena weather in November.
June and December present stark contrasts in weather. In June, temperatures range from a comfortable minimum of 9°C (49°F) to a scorching maximum of 36°C (96°F), with an average of 22°C (71°F). The month experiences relatively low rainfall, totaling 38 mm (1.5 in) over just 6 days, accompanied by moderate humidity at 62%. In comparison, December sees much cooler temperatures, with a minimum of -4°C (25°F) and a maximum of 16°C (61°F), averaging only 7°C (44°F). This month is characterized by higher precipitation levels, with 98 mm (3.8 in) falling over 11 days, and increased humidity at 83%. For more detailed insights into December's conditions, you can refer to Siena weather in December.
As June unfolds in Siena, it brings a delightful warmth that sets the stage for vibrant outdoor activities. Unlike the cooler months, June usually boasts much higher temperatures, with balmy days often reaching their peak. With average highs around 22°C (71°F), this month heralds the arrival of summer, contrasted by refreshing evenings. While occasional rainfall may occur, with a few days registering 38 mm (1.5 in) of precipitation, these brief showers are typically overshadowed by the predominance of sunny days. The humidity level hovers around 62%, giving the air a pleasant quality that enhances the lush surroundings. For a deeper dive into what to expect weather-wise, check out Siena Climate.