Last updated: August 27, 2025
In June, Istanbul experiences a delightful transition into summer, with maximum temperatures soaring up to 30°C (86°F) and an average temperature of around 22°C (71°F). The city enjoys a comfortable climate, highlighted by minimum temperatures dipping to 13°C (56°F), making it perfect for outdoor exploration. While the month sees about 40 mm (1.6 in) of precipitation spread over 7 days, the humidity levels hover around 70%, adding a touch of warmth to the air. Enjoy the vibrant atmosphere of this historic city as it blossoms under the June sun!
In June, Istanbul begins to transition into its warm summer season, with temperatures reflecting a truly inviting atmosphere for visitors. The month kicks off with a minimum temperature of 13°C (56°F), gradually climbing to an average of 22°C (71°F), and peaking at a delightful 30°C (86°F). This notable warmth brings a vibrant energy to the city, encouraging outdoor exploration and the enjoyment of its bustling markets and historic sites. These June figures highlight a clear trend of rising temperatures compared to the cooler spring months, making it an opportune time for travelers to soak in the sun and experience the rich culture of Istanbul amidst increasingly pleasant weather.
June marks a transition in Istanbul's precipitation landscape, as the rainfall begins to taper off, paving the way for the warm summer months ahead. With a modest 40 mm (1.6 in) of precipitation spread over just 7 days, June is characterized by fewer wet days compared to the preceding months. This decline in precipitation mirrors the city's gradual shift from the relatively wetter spring months of April and May, making June one of the driest months in early summer. The trend of diminishing rainfall will continue into July and August, creating a dry spell that complements Istanbul's vibrant outdoor activities during the peak tourist season.
As summer approaches, June in Istanbul, Turkey, marks a notable drop in humidity to 70%, providing a refreshing shift from the more humid months of early spring. The city's humidity begins to decline gradually from a high of 84% in January and February, steadily decreasing through the spring months. This transition sets the stage for the drier days of July and August, where humidity levels dip even further to 63% and 55% respectively. Observing these trends, one can appreciate how Istanbul gracefully balances between the damp chill of winter and the warmth of summer, creating a dynamic climate that invites both locals and visitors to enjoy its vibrant atmosphere during this time.
In June, Istanbul experiences a significant rise in its UV Index, peaking at 10, which falls into the very high exposure category, necessitating a burn time of just 15 minutes. This marked increase from the 8 in May signals the arrival of summer, where sun sensitivity escalates and sun protection becomes paramount. As we look ahead, it’s noteworthy that the trend continues through July and August, where the UV Index remains elevated at 9. Comparatively, the early months of the year, such as January and February, have much milder indexes of 3 and 4, respectively, highlighting the dramatic shift in solar intensity as summer approaches. For those planning outdoor activities, staying informed about the local UV conditions is crucial—check the Istanbul UV Index for real-time updates and safety tips.
UV Risk Categories
As June unfolds in Istanbul, the sun casts its generous glow, offering 411 hours of radiant sunshine—marking the peak of the early summer season. This represents a delightful increase from the previous months, particularly from May's 401 hours, showcasing a trend of rising sunlight that continues through the heart of summer. The city basks in warmth, drawing both locals and tourists to its vibrant streets and historic sites, while the days grow longer and more inviting. The surge in sunshine reflects not only the seasonal shift but also the anticipation of leisurely days ahead, as Istanbul transitions smoothly into the sun-drenched embrace of July, where sunshine peaks at 428 hours.
As June rolls in, Istanbul transitions into a season of increasing sunshine, boasting a 60% chance of sunny weather. This marks a significant rise from earlier months, with May at 57% and a noticeable leap from March and April, both hovering around the 40% mark. The trend continues upward as summer approaches, leading into the sun-drenched months of July and August, which enjoy 79% and 82% chances, respectively. This gradual climb in sunny days signifies that June is not just a gateway to summer but also a delightful invitation for outdoor activities under the warm Istanbul sun.
As summer descends upon Istanbul, June shines bright with 15 hours of daylight, marking the peak of luminous days in the year. The trend reveals a steady increase in daylight hours from January's 9 hours to May's 14 hours, a welcome progression that invigorates the city as it shakes off winter's gloom. This month follows a season of gradual light expansion, culminating in longer, sun-soaked days perfect for exploring the vibrant streets and stunning vistas of Istanbul. However, as July approaches, the daylight slightly retreats to 14 hours, hinting at the cyclical nature of the seasons, where the sun will gradually begin to wane as autumn approaches.
As June dawns in Istanbul, the city experiences a notable drop in average wind speed, with values falling to 3.0 m/s (7 mph)—the calmest of the year. This gentle breeze contrasts sharply with the gustier months of October and December, which consistently feature winds above 5 m/s (12 mph). While spring's mild flurries pave the way for hotter summer days, the trend from April to June reveals a steady decrease in wind intensity, making way for the warm embrace of summer. As the bustling city prepares for the sun-soaked days ahead, these tranquil winds offer a brief respite, inviting residents and visitors alike to leisurely explore Istanbul's vibrant streets and waterfronts.
Weather in Istanbul varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Istanbul, focusing on differences in temperature, rainfall, humidity, and UV levels.
June and January present stark contrasts in Istanbul's weather. In June, temperatures range from a mild 13°C (56°F) at night to a warm 30°C (86°F) during the day, while average humidity sits around 70% with a relatively low precipitation of 40 mm over just 7 days. In contrast, January experiences much colder conditions, with temperatures plunging to a minimum of -3°C (27°F) and averaging just 7°C (45°F). This winter month is also wetter, recording 102 mm of precipitation across 13 days and a higher humidity level of 84%. For a deeper look at January's climate, you can check out Istanbul weather in January.
June and February present starkly different weather conditions. In June, temperatures range from a mild 13°C (56°F) to a warm 30°C (86°F), with an average of 22°C (71°F), making it a much warmer month. Precipitation is relatively low at 40 mm (1.6 in), falling over just 7 days, along with a humidity level of 70%. In contrast, February experiences much cooler temperatures, ranging from a minimum of -1°C (31°F) to a maximum of 17°C (62°F) and averaging around 8°C (46°F). This month also sees higher precipitation at 66 mm (2.6 in) across 12 days and a higher humidity level of 84%. For more details on February weather, check out Istanbul weather in February.
June generally offers much warmer and sunnier weather compared to March. With temperatures ranging from a minimum of 13°C (56°F) to a maximum of 30°C (86°F) and an average of 22°C (71°F), June provides a pleasant climate for outdoor activities. In contrast, March experiences cooler temperatures, ranging from -2°C (29°F) to a maximum of 18°C (65°F), with an average temperature of only 8°C (47°F). Additionally, March sees more precipitation at 82 mm (3.2 in) over 12 days, compared to June's 40 mm (1.6 in) over 7 days. The humidity is also higher in March at 83%, while June's humidity stands at a more comfortable 70%. To explore more about March weather, check out Istanbul weather in March.
In comparing the weather of June and April, June generally offers warmer temperatures, with average highs reaching up to 30°C (86°F) compared to April's milder maximum of 23°C (73°F). The minimum temperature in June is also significantly higher at 13°C (56°F) versus April's 4°C (40°F). Both months see moderate precipitation, with April slightly wetter at 49 mm (1.9 in) over 8 days, compared to June's 40 mm (1.6 in) over 7 days. Humidity levels are relatively high in both months, with June at 70% and April slightly higher at 76%. For more detailed weather in April, you can check Istanbul weather in April.
In comparing the weather between May and June, June experiences warmer temperatures overall, with a minimum of 13°C (56°F) and an average of 22°C (71°F), peaking at a maximum of 30°C (86°F). In contrast, May has cooler temperatures, ranging from a minimum of 8°C (46°F) to an average of 17°C (63°F) and a maximum of 27°C (82°F). Additionally, June has slightly less precipitation, with 40 mm (1.6 in) over 7 days, compared to May’s 50 mm (2.0 in) across 8 days. Humidity levels are also lower in June at 70%, compared to May’s 77%. For a detailed look at May's weather, you can refer to Istanbul weather in May.
When comparing the weather in June and July, notable differences emerge. June typically experiences a milder climate with minimum temperatures around 13°C (56°F), an average of 22°C (71°F), and a maximum of 30°C (86°F). The month also sees about 40 mm (1.6 in) of precipitation over roughly 7 days, paired with a humidity level of 70%. In contrast, July brings warmer conditions with minimum temperatures of 18°C (65°F), an average of 24°C (76°F), and highs reaching up to 33°C (92°F). Precipitation increases slightly to 53 mm (2.1 in) but occurs over fewer days—just 5 days—and the humidity drops to 63%. This shift indicates that while July is warmer and slightly wetter, it feels more comfortable due to lower humidity. For more details, check out Istanbul weather in July.
June and August in Istanbul present distinct weather contrasts. In June, temperatures range from a comfortable 13°C (56°F) at night to a warm 30°C (86°F) during the day, accompanied by higher humidity levels at 70% and approximately 40 mm (1.6 in) of precipitation over 7 days. In comparison, August showcases warmer weather with minimum temperatures of 19°C (66°F) and maximums reaching 34°C (93°F), while experiencing significantly less rainfall, totaling only 18 mm (0.7 in) over just 3 days and lower humidity at 55%. For more detailed information on what to expect, you can check Istanbul weather in August.
June and September in Istanbul exhibit surprisingly similar temperatures, with both months experiencing minimums around 13°C (56°F) and averages close to 22°C (72°F). However, September tends to be a bit warmer, reaching a maximum of 32°C (90°F) compared to June's 30°C (86°F). In terms of precipitation, June receives slightly more rain (40 mm or 1.6 in over 7 days) than September, which averages 36 mm (1.4 in over 6 days). Furthermore, humidity is higher in June at 70%, whereas September enjoys a more comfortable 60%. For those interested in more detailed statistics, Istanbul weather in September provides additional insights.
June and October present distinct weather patterns, highlighting the transition from early summer to autumn. In June, temperatures range from a minimum of 13°C (56°F) to a maximum of 30°C (86°F), with an average of 22°C (71°F). Precipitation is relatively low at 40 mm (1.6 in) over about 7 days, accompanied by humidity levels around 70%.
In contrast, October experiences cooler temperatures, with a minimum of 10°C (50°F) and a maximum of 28°C (82°F), resulting in an average temperature of 18°C (64°F). Rainfall increases slightly, with 56 mm (2.2 in) expected over 8 days, and humidity rises to around 73%. This shift in weather signifies not only a drop in temperatures but also a subtle increase in precipitation. For a detailed overview, check out Istanbul weather in October.
June and November exhibit contrasting weather characteristics in terms of temperature, precipitation, and humidity. In June, temperatures range from a mild 13°C (56°F) at night to a warm 30°C (86°F) during the day, with an average of 22°C (71°F). Precipitation is relatively low at 40 mm (1.6 in) over about 7 days, and humidity is moderate at 70%. In contrast, November sees cooler temperatures, with a minimum of 7°C (44°F) and a maximum of 22°C (72°F), averaging only 14°C (57°F). Precipitation increases to 63 mm (2.5 in) spread over 10 days, and humidity rises to a higher 82%. For more specific details on November weather, you can check this link: Istanbul weather in November.
June and December present striking contrasts in weather. In June, temperatures range from a minimum of 13°C (56°F) to a maximum of 30°C (86°F), with an average of 22°C (71°F), making it a warm, pleasant month. The humidity level hovers around 70%, and precipitation is relatively low at 40 mm (1.6 in) over about 7 days. In contrast, December brings much cooler temperatures, with a minimum of 1°C (34°F), an average of 10°C (50°F), and a maximum of 18°C (64°F). This month also sees increased precipitation, totaling 108 mm (4.2 in) over approximately 15 days, accompanied by higher humidity levels at 85%. For a more detailed look at December's weather, you can visit Istanbul weather in December.
As June unfolds in Istanbul, the city experiences a delightful transition into warmer weather, characterized by mild evenings and pleasantly warm days. With an average temperature reaching 22°C (71°F) and peaks of up to 30°C (86°F), this month offers a taste of summer without the sweltering heat that July and August bring. Unlike the wetter months of spring, June typically sees limited rainfall, averaging 40 mm across about 7 days, allowing for plenty of sunshine and outdoor activities. With a humidity level of around 70%, the warmth can feel invigorating, making it an ideal time to explore the city's vibrant streets. For a deeper dive into what to expect throughout the year, check out the detailed insights at Istanbul Climate.