Last updated: February 24, 2025
In June, Portland, United States, experiences a dynamic range of weather conditions. With a maximum temperature soaring to 47°C (118°F), the month also sees an average temperature of a comfortable 18°C (64°F), while dipping to a refreshing minimum of 6°C (43°F) on cooler nights. Precipitation is moderate, accumulating 46 mm (1.8 in) over approximately 8 days, contributing to the region's lush greenery. Despite the warmth, humidity levels remain high at 83%, adding a touch of tropical feel to the Pacific Northwest, making June a month of vivid contrasts and vibrant experiences.
In June, Portland experiences a delightful transition into summer, with temperatures reflecting a steady warming trend. The minimum temperature rises to a comfortable 6°C (43°F), while the average reaches an inviting 18°C (64°F), making it ideal for outdoor activities. With a remarkable maximum potential of 47°C (118°F), though this extreme is rare, the warmth beckons both locals and visitors to enjoy the city's vibrant parks and outdoor cafés. Compared to the cooler months preceding it, June sets the stage for longer days filled with sunshine, allowing residents to fully embrace the lively atmosphere that characterizes the onset of summer in the Pacific Northwest.
June marks a transition in Portland's weather, with precipitation dropping significantly to just 46 mm (1.8 in), accompanied by only 8 days of rain. This reduction follows a noticeably wet spring, where May's rainfall tallied 58 mm (2.3 in) over 10 days. The onset of summer is clear, as June's shower count dwindles in comparison to the higher monthly averages of previous months. This trend continues into July and August, where precipitation plummets to a mere 6 mm (0.2 in) and 8 mm (0.3 in), highlighting Portland's dry season. As summer unfolds, residents can expect more sunshine and fewer rainy days, marking a refreshing shift from the earlier months.
In June, Portland experiences a consistent humidity level of 83%, mirroring the trends seen in May and April. This slight dip from the higher winter and early spring months signals the onset of summer, as the city transitions into warmer days. Notably, the humidity starts to decrease more significantly in July and August, dipping to 82% and 74%, respectively, indicating a shift towards drier conditions. Overall, June's humidity reflects a stable environment that prepares residents for the sunnier months ahead, while still maintaining a lush, vibrant landscape characteristic of the Pacific Northwest.
As summer settles in, June marks a peak in the UV Index for Portland, reaching 10, categorizing the exposure as very high. This significant rise from the previous months indicates a critical shift in sun intensity, where the recommended burn time shrinks to just 15 minutes. Following on the heels of May's 9, June’s UV levels further underscore the importance of sun protection during outdoor activities. Looking ahead, July maintains this intensity, while August begins to show a slight decline. This trend not only highlights the growing need for vigilance as the season progresses but also serves as a reminder to enjoy the vibrant summer sun safely. For more detailed insights, explore the Portland UV Index.
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As June arrives in Portland, the city basks in 318 hours of sunshine, marking a significant increase from the 282 hours enjoyed in May. This upward trend in sunlight is not only a prelude to the sun-drenched days of July, with its remarkable 374 hours, but also a celebration of the summer season. With each passing month, Portland transitions from winter’s dreary 88 hours of January to the vibrant warmth of summer, creating a delightful pattern that encourages both locals and visitors to embrace outdoor activities. The rising sunshine hours reflect the city's shift into a more lively, bright atmosphere, making June a perfect time to explore Portland's lush landscapes and vibrant culture.
In June, Portland begins to embrace its sunnier side, boasting a 63% chance of sunny weather, making it one of the sunniest months of the year. This significant rise from the cooler, cloudier months of January and February, which see only 16% and 17% sunny days respectively, highlights a clear transition into a warmer season. By the time summer peaks in July with a 74% chance of sunshine, June serves as a welcoming prelude, bridging the gap from the unpredictable spring months. Despite May's sunshine probability dipping to 37%, June firmly establishes itself as a turning point, where residents can look forward to longer, brighter days, setting the tone for the summer ahead.
As June unfolds in Portland, the city's daylight hours reach their peak at 15 hours, creating an inviting atmosphere for outdoor activities and exploration. This vibrant month marks the transition from the gradual increase in daylight that starts in January with only 9 hours to a flourishing mid-year abundance. Following May’s 14 hours, June not only mirrors July’s long days but also sets the stage for a shift as the sun begins to retreat slightly towards the autumn months. The extended daylight hours of June offer Portlanders the perfect opportunity to soak in the beauty of long summer evenings before the gradual decline in daylight returns in August with 13 hours and continues through the fall.
In June, Portland experiences a gentle breeze with an average wind speed of 2.2 m/s (5 mph), consistent with the lighter winds typical of the late spring and early summer months. This slight dip from the previous month's 2.4 m/s reflects a tendency toward calmer conditions as the city transitions into summer. Remarkably, the wind speeds in Portland remain relatively stable throughout the year, with fluctuations rarely exceeding 0.3 m/s. This trend of moderate winds continues into July and August, maintaining the serene atmosphere that complements Portland's vibrant summer scenery. As residents and visitors bask in the warm weather, the gentle airflow enhances the charm of outdoor activities without overwhelming the landscape.
The weather in Portland 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 Portland and find detailed weather information for every month.
June and January present stark contrasts in weather patterns. In June, temperatures range from a mild 6°C (43°F) at night to a scorching maximum of 47°C (118°F) during the day, with an average of 18°C (64°F). Despite being a warmer month, June experiences about 46 mm (1.8 in) of precipitation over approximately 8 days and humidity levels at 83%. In comparison, January is much colder, with temperatures dipping as low as -14°C (7°F) and peaking at a modest 15°C (59°F), averaging around 5°C (42°F). This winter month sees significantly higher precipitation at 163 mm (6.4 in) over 17 days, accompanied by slightly higher humidity at 85%. For more details on January's weather conditions, check out Portland weather in January.
When comparing the weather in June and February, it's clear that these months present significantly different climates. June typically experiences a much warmer temperature range, with minimums of 6°C (43°F) and maximums soaring up to 47°C (118°F), while the average temperature rests around 18°C (64°F). In contrast, February is much cooler, with temperatures ranging from a minimum of -7°C (19°F) to a maximum of 17°C (63°F) and an average of just 5°C (41°F).
Additionally, February sees a much higher level of precipitation, with 172 mm (6.8 in) over 19 days, compared to June's 46 mm (1.8 in) across only 8 days. Humidity levels remain relatively similar, with February at 84% and June at 83%. For more detailed information about the weather in February, you can visit Portland weather in February.
When comparing the weather in June and March, it's clear that June experiences significantly warmer temperatures, with an average of 18°C (64°F) and highs reaching up to 47°C (118°F). In contrast, March has a cooler climate, with an average temperature of 8°C (46°F) and a maximum of 24°C (75°F). Precipitation is notably lower in June, with 46 mm (1.8 in) over about eight days, compared to March's 135 mm (5.3 in) across 17 days, making March a wetter month overall. Additionally, humidity levels are slightly higher in March at 85%, while June sees a humidity level of 83%. For more specific details about conditions in March, you can visit Portland weather in March.
In comparing the weather between June and April, June offers a notably warmer climate with average temperatures rising to 18°C (64°F), while April's average rests at a cooler 11°C (51°F). However, April experiences significantly higher precipitation, totaling 117 mm (4.6 in) over 15 days, compared to June's 46 mm (1.8 in) over just 8 days. Interestingly, both months share a similar humidity level of 83%, creating a consistently moist atmosphere throughout spring and early summer. For a detailed look at April's weather patterns, you can refer to Portland weather in April.
In comparing the weather between May and June, we see distinct shifts in both temperature and precipitation patterns. June enjoys a wider range of temperatures, with a minimum of 6°C (43°F) and reaching a scorching maximum of 47°C (118°F), while May's temperatures remain cooler, ranging from a minimum of 2°C (36°F) to a maximum of 32°C (90°F). However, May has slightly more precipitation, accumulating 58 mm (2.3 in) over 10 days compared to June's 46 mm (1.8 in) over 8 days. Both months exhibit high humidity levels at 83%. For more detailed insights on May weather, visit Portland weather in May.
June and July exhibit notable differences in weather patterns. June experiences a wider temperature range, with a minimum of 6°C (43°F) and a maximum reaching up to 47°C (118°F), while its average temperature sits at 18°C (64°F). This month also sees considerable precipitation, totaling 46 mm (1.8 in) over 8 days and humidity levels at 83%. In contrast, July boasts a milder minimum temperature of 9°C (49°F) and a maximum of 37°C (99°F), with an average of 21°C (69°F). This month is considerably drier, receiving only 6 mm (0.2 in) of rainfall over just a single day and maintaining a steady humidity of 82%. For more specific insights, you can explore Portland weather in July.
In June, the weather showcases a wide temperature range, with minimums dropping to 6°C (43°F) and soaring to a maximum of 47°C (118°F), resulting in an average of 18°C (64°F). This month experiences considerable precipitation, with about 46 mm (1.8 in) falling over 8 days, accompanied by high humidity levels at 83%. In contrast, August presents a milder climate, with minimum temperatures of 9°C (48°F) and a maximum of 40°C (104°F), leading to a slightly warmer average of 21°C (70°F). The precipitation significantly decreases to only 8 mm (0.3 in) over just 2 days, and humidity levels drop to 74%. For more details on summer weather, you can check out Portland weather in August.
In comparing the weather of June and September, both months share similar minimum temperatures, with June averaging a low of 6°C (43°F) and September at 6°C (42°F). However, June experiences a significantly higher maximum temperature, soaring to 47°C (118°F), while September's peak reaches a more moderate 35°C (95°F). Precipitation is also notable; September sees more rainfall, totaling 62 mm (2.4 in) compared to June's 46 mm (1.8 in), despite both months having precipitation on 8 days. Additionally, humidity levels are higher in June at 83%, contrasting with September's milder 71%. For more details on the climate during this time, visit Portland weather in September.
June and October present contrasting weather patterns, showcasing the transition from the warmer summer months to the cooler fall season. In June, temperatures range from a comfortable minimum of 6°C (43°F) to a sweltering maximum of 47°C (118°F), with an average of 18°C (64°F). The month experiences 46 mm (1.8 in) of precipitation spread over 8 days and maintains a high humidity level of 83%. In contrast, October's temperatures dip significantly, with a minimum of -2°C (29°F) and a maximum of 26°C (79°F), averaging 12°C (53°F). October also sees a greater amount of precipitation at 105 mm (4.1 in) across 12 days, while humidity remains relatively high at 81%. For more details on October's weather, you can visit Portland weather in October.
June and November present contrasting weather patterns. In June, temperatures can soar to a sweltering maximum of 47°C (118°F), while the average sits comfortably at 18°C (64°F). However, this month also experiences relatively low precipitation at 46 mm (1.8 in) over about 8 days, with humidity levels at 83%. In stark contrast, November brings a much cooler climate, with temperatures peaking at 19°C (67°F) and an average of just 8°C (47°F). This month is significantly wetter, recording 155 mm (6.1 in) of precipitation over 18 days and slightly higher humidity at 87%. For more details, check out Portland weather in November.
June and December weather in Portland present striking contrasts. June welcomes warmer conditions, with average temperatures around 18°C (64°F) and a maximum soaring to 47°C (118°F), albeit with lower precipitation totaling 46 mm (1.8 in) over about 8 days. In contrast, December brings significantly cooler temperatures, averaging 5°C (41°F) and peaking at 16°C (60°F), while experiencing much higher precipitation of 183 mm (7.2 in) across 19 rainy days. The humidity remains relatively high in both months, with June at 83% and December slightly higher at 87%. For more detailed information on December weather patterns, you can check Portland weather in December.
As June arrives in Portland, the city begins to shed its spring chill, presenting a welcome shift in weather patterns. With an average temperature that gently climbs, residents enjoy the warmth during the day, while cooler nights remind them that summer has yet to fully settle in. Even though precipitation during this month remains present, with several rainy days, the overall humidity adds a vibrant lushness to the local scenery. Compared to the wetter, cooler months that precede it, June serves as a inviting bridge to the sun-drenched days of summer ahead. For a more comprehensive look at Portland's diverse weather throughout the year, visit Portland Climate.