June Weather in Juneau, United States

Last updated: February 24, 2025

In Juneau, United States, the weather in June is characterized by mild temperatures and considerable moisture. The maximum temperature can reach a pleasant 25°C (77°F), while the average hovers around 11°C (53°F), creating a comfortable atmosphere for outdoor activities. However, the minimum temperature can drop to 2°C (36°F), reminding residents of the cool coastal climate. With 189 mm (7.4 in) of precipitation falling over 22 days, June is known for its frequent rain, contributing to the lush greenery that the region is famous for. The high humidity level of 96% further enhances the vibrant landscape, making Juneau a truly captivating destination during this month.

June Temperature in Juneau

In June, Juneau, United States experiences a delightful transition into summer, with temperatures reflecting a significant warming trend. The minimum temperature rises to a mild 2°C (36°F), while the average temperature reaches a comfortable 11°C (53°F), and the maximum can soar to 25°C (77°F). This marks a notable increase from the colder months, where January to May featured far chillier averages. With the arrival of June, residents and visitors alike can finally enjoy the outdoors, as the city's natural beauty comes alive under sunnier skies and warmer temperatures. The gradual shift from winter's icy grasp to the warmth of summer highlights Juneau's remarkable climatic diversity, offering a perfect time for exploration and outdoor adventures.

June Weather in Juneau: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Juneau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec252329364552565550393128
Data source: Temperature data for Juneau 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.

June Precipitation in Juneau

In Juneau, June marks a notable shift in precipitation patterns, with rainfall averaging 189 mm (7.4 in) over 22 days—the most days of rain in any month so far this year. This increase in precipitation aligns with a gradual rise from the drier spring months of April and May, which saw much less rainfall at 163 mm (6.4 in) and 174 mm (6.9 in) respectively. As summer approaches, June establishes a trend towards heavier rainfall that peaks in the following months, with August setting itself apart with a staggering 280 mm (11.0 in). The consistent rainfall not only signifies the start of the wetter season but also enriches the lush landscapes surrounding the region, hinting at what residents and visitors can expect as they embrace the vibrant Alaskan summer.

June Precipitation Trends in Juneau

The chart displays monthly precipitation patterns in Juneau, with values for each month alongside June's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec215182175163174189164280259332267293
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Juneau

In June, Juneau, Alaska experiences a notable rise in humidity, peaking at an impressive 96%. This month marks the transition into the summer period, where the lush landscape thrives under the warmth and abundant moisture. Interestingly, June's humidity is slightly higher than in the preceding months, including May’s 90%. This increase sets the stage for the even more humid conditions of July and August, which reach a staggering 104% and 108% respectively. This trend highlights the coastal climate's characteristic of elevated humidity levels, capturing the essence of Juneau's maritime environment and its vibrant, verdant summer scenery.

June Average Humidity in Juneau

This chart illustrates the average monthly humidity levels in Juneau, with June's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how June's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec94%90%92%92%90%96%104%108%101%98%97%96%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Juneau

In Juneau, the UV Index reaches very high levels in both May and June, peaking at 8, which means sun exposure can lead to skin burns in as little as 15 minutes. This trend marks a significant increase from the milder conditions earlier in the year, as the index climbs from a low of 1 in January to a moderate 5 in April. The summer months, particularly July and August, maintain this intensity, pushing the index to 9 and continuing the call for sun safety. As temperatures rise and daylight increases, it's crucial for residents and visitors to be aware of these UV levels and adjust their sun protection strategies accordingly. For more details on UV exposure in this region, check out Juneau UV Index.

Maximum UV Index Levels in Juneau for June

The chart shows the monthly maximum UV Index (UVI) for Juneau in June, 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.
JanFebMarAprMayJunJulAugSepOctNovDec124588996311
Data source: Juneau June 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.

June Sunshine in Juneau

June in Juneau, United States, welcomes an abundance of daylight, boasting 201 hours of sunshine. This marks a slight dip from May's impressive 235 hours, yet it remains a bright showcase of the month’s natural beauty. After a gradual increase through the spring, where sunshine hours leap from a mere 43 hours in January to 218 hours in April, Juneau's sunlit days provide a perfect backdrop for summer adventures. As summer unfolds, July sees a modest decrease to 198 hours, indicating that while the days may start to shorten, the lingering warmth and brightness of June create a vibrant and inviting atmosphere for residents and visitors alike.

Monthly Sunshine Duration in Juneau: June Highlighted

The June sunshine duration represents the total number of hours Juneau experiences direct sunlight during the month of June, excluding cloudy or obstructed periods. This chart compares the sunshine duration of June with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec43h125h179h218h235h201h198h178h167h103h58h45h
Data source: Juneau June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Juneau During June

In June, Juneau experiences a 26% chance of sunny weather, which is somewhat moderate compared to the fluctuations throughout the year. As spring gives way to summer, the likelihood of sun slightly increases from May's 13%, showing a gradual trend towards brighter days. Interestingly, July parallels June with the same 26% chance, suggesting that the peak of summer may not guarantee radiant sunshine. However, when looking at the overall seasonal trends, June stands out as a time when residents and visitors can enjoy longer daylight hours, even as the sun’s presence remains elusive compared to other summer locales.

Percentage of Sunny Days in June in Juneau

The chart illustrates the percentage of sunny days in Juneau throughout the year, with June 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 Juneau experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec16%36%17%35%13%26%26%17%8%15%14%30%
Data source: Juneau June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Juneau in June

In Juneau, United States, the transition from winter to summer is vividly reflected in the increasing daylight hours, peaking dramatically in June with 18 hours of daylight. This surge marks a significant leap from the 7 hours experienced in January, showcasing how the days lengthen as spring progresses. Following June, the daylight slightly tapers off in July to 17 hours, and then continues its gradual decline through the late summer and into autumn, ending with just 10 hours in October. As the year wanes, the cycle returns to the shorter days of winter, with December offering only 6 hours of daylight. This rhythmic pattern not only enhances the beauty of Juneau's natural landscape but also invites residents and visitors alike to revel in the vibrant, sunlit days of summer.

Average Daylight Hours in Juneau for June

The chart illustrates the variation in daylight duration in Juneau throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec7h 13m9h 23m11h 54m14h 29m16h 50m18h 7m17h 23m15h 13m12h 42m10h 9m7h 47m6h 28m
Data source: Juneau daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Juneau

In Juneau, United States, the wind speed exhibits a notable trend as we transition into mid-year. Starting at an average of 2.5 m/s (6 mph) in January, the winds gradually decrease, hitting a low of 1.6 m/s (4 mph) in June. This steady decline from January to June reflects a calming atmosphere, ideal for leisurely summer activities. Interestingly, there's a slight uptick in wind speed observed in August (1.9 m/s or 4 mph), suggesting a return to more invigorating breezes as summer wanes. Overall, the soothing winds of June make it a tranquil month in this coastal city, inviting residents and visitors alike to embrace the serene surroundings.

Average June Wind Speed in Juneau

The chart displays monthly wind speed patterns in Juneau, with values for each month shown alongside June's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how June's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.62.32.01.81.6 m/s1.41.92.22.52.42.5
Data source: Juneau June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Juneau Compares to Other Months

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

The weather in June and January presents a stark contrast, reflecting the diverse climate variations throughout the year. In June, temperatures range from a chilly 2°C (36°F) at night to a pleasant maximum of 25°C (77°F) during the day, accompanied by significant precipitation averaging 189 mm (7.4 in) over 22 days, resulting in high humidity of 96%. Conversely, January experiences much colder conditions, with temperatures plummeting to a minimum of -25°C (-13°F) and peaking at just 8°C (47°F). Precipitation rises slightly to 215 mm (8.4 in) spread over 16 days, with humidity at 94%. For more detailed information, visit Juneau weather in January.

Comparing the weather in June and February reveals stark contrasts in temperature and precipitation. June boasts milder temperatures ranging from a chilly 2°C (36°F) to a warm 25°C (77°F), with an average of 11°C (53°F). In contrast, February is significantly colder, featuring temperatures that dip as low as -24°C (-12°F) and typically hover around -5°C (23°F) during the day, peaking at just 9°C (48°F).

Both months experience considerable precipitation, with June recording 189 mm (7.4 in) over 22 days, while February sees slightly less at 182 mm (7.2 in) but over just 14 days. June also has a higher humidity level at 96% compared to February's 90%. For more detailed information about February weather, you can visit Juneau weather in February.

June and March feature starkly contrasting weather in Juneau. In June, temperatures range from a chilly 2°C (36°F) at their lowest to a warm 25°C (77°F) at their peak, with an average temperature of 11°C (53°F). The month is quite wet, experiencing 189 mm (7.4 in) of precipitation over 22 days and high humidity at 96%. In contrast, March is significantly colder, with temperatures ranging from a frigid -18°C (0°F) to a milder 10°C (51°F), and an average temperature of -1°C (30°F). While March sees slightly less precipitation at 175 mm (6.9 in) over 17 days, the humidity is still high at 92%. For a detailed comparison, check out Juneau weather in March.

In comparing the weather of June and April, June typically offers a much warmer experience, with temperatures ranging from a minimum of 2°C (36°F) to a pleasant maximum of 25°C (77°F). In contrast, April can be quite chilly, with temperatures dipping as low as -13°C (9°F) and peaking at only 12°C (55°F). While both months see significant precipitation, June's 189 mm (7.4 in) over 22 days contrasts with April's 163 mm (6.4 in) over 17 days, indicating that June is slightly wetter yet more temperate. Additionally, June's humidity level is notably higher at 96%, compared to April's 92%. For more details on the weather specifics, you can visit Juneau weather in April.

In comparing the weather patterns of June and May, June presents a broader temperature range, with minimum temperatures around 2°C (36°F) and maximums reaching 25°C (77°F). This is notably warmer than May, where temperatures range from a minimum of -3°C (26°F) to a maximum of 21°C (70°F). Additionally, June experiences slightly more precipitation, totaling 189 mm (7.4 in) over 22 days, compared to May's 174 mm (6.9 in) over 18 days. Humidity is also higher in June, averaging 96%, compared to May's 90%. This shift from May to June signifies a transition into the warmer, wetter summer season. For more detailed information, you can visit Juneau weather in May.

June and July in Juneau exhibit some notable differences in weather patterns. June has a milder range of temperatures, with minimums around 2°C (36°F) and averages of 11°C (53°F), while July sees slightly warmer minimums of 7°C (45°F) and averages of 13°C (56°F). Interestingly, both months share the same maximum temperature of 25°C (77°F). Precipitation in June is higher, totaling 189 mm (7.4 in) over 22 days, compared to July's 164 mm (6.5 in) over 18 days. Humidity levels also rise in July, reaching 104%, whereas June maintains a slightly lower level at 96%. For more detailed insights, you can refer to Juneau weather in July.

June and August exhibit notable differences in weather patterns. June typically sees a minimum temperature of 2°C (36°F) and an average of 11°C (53°F), while August has slightly warmer conditions with a minimum of 4°C (40°F) and an average temperature of 13°C (56°F). Both months are characterized by significant precipitation; however, June averages 189 mm (7.4 in) over 22 days, whereas August receives more rainfall at 280 mm (11.0 in) across 20 days. Humidity levels are also higher in August, reaching 108%, compared to June's 96%. For more detailed insights on the weather, you can refer to Juneau weather in August.

In June, the weather typically features a range of temperatures from a chilly 2°C (36°F) to a pleasant maximum of 25°C (77°F), with an average of 11°C (53°F). Rainfall is frequent, with 189 mm (7.4 in) of precipitation spread over 22 days, combined with high humidity levels averaging 96%. In contrast, September ushers in cooler temperatures, where minimums drop to -4°C (26°F) and averages rest at 10°C (50°F), while the maximum reaches 23°C (74°F). Interestingly, September experiences even more precipitation, totaling 259 mm (10.2 in) over 17 days, and humidity remains notably high at 101%. For more detailed insights, check out Juneau weather in September.

June and October showcase contrasting weather patterns in Juneau. In June, temperatures range from a mild 2°C (36°F) at night to a warm 25°C (77°F) during the day, with an average of 11°C (53°F). The month sees considerable rainfall, totaling 189 mm (7.4 in) over 22 days, with humidity levels reaching 96%. In stark contrast, October experiences cooler temperatures, with nighttime lows plunging to -11°C (13°F) and daytime highs averaging 14°C (57°F), resulting in an average of 4°C (40°F). Rainfall in October is significantly higher, measuring 332 mm (13.1 in) across the same number of rainy days, and humidity increases slightly to 98%. For more details, you can check Juneau weather in October.

Comparing the weather in June and November reveals stark differences in temperature and conditions. June enjoys milder temperatures with averages around 11°C (53°F) and highs reaching up to 25°C (77°F), accompanied by high humidity at 96%. Conversely, November sees a significant drop, with average temperatures plummeting to -1°C (31°F) and maximums only reaching 8°C (47°F), coupled with a notable increase in precipitation to 267 mm (10.5 in) over the same number of days. The humidity remains similarly high at 97%, making the November chill feel even more pronounced. For a more detailed look at what to expect, you can visit Juneau weather in November.

In June, the weather in Juneau is characterized by relatively mild temperatures, with averages ranging from a chilly 2°C (36°F) to a warm 25°C (77°F). The month sees a total precipitation of 189 mm (7.4 in) over 22 days, accompanied by high humidity at 96%. In contrast, December brings a stark change in conditions, with much colder temperatures that can dip as low as -24°C (-10°F) and an average temperature of -2°C (28°F). Precipitation in December increases to 292 mm (11.5 in), also spread across 22 days, while humidity remains the same at 96%. This dramatic shift highlights the significant seasonal variations in Juneau's climate. For more details, you can visit Juneau weather in December.

Compare Juneau's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Juneau

As June unfolds in Juneau, the city emerges from the chill of winter into a vibrant, albeit wet, summer atmosphere. Temperatures rise, reaching their peaks as average highs flirt with pleasant conditions, drawing both residents and visitors outdoors. However, frequent rainfall and high humidity serve as a reminder that even summer in Juneau can feel a bit soggy. This month stands out with a significant number of precipitation days, setting it apart from both the arid months preceding it and the drier days that follow. Embrace the lush greenery that thrives under these conditions, and plan your adventures accordingly! To learn more about the climate patterns in this enchanting location, visit Juneau Climate.