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June Weather in Unalaska, United States

Last updated: June 24, 2025

In June, the average temperature in Unalaska, United States hovers around 7°C (46°F). Expect a chilly minimum of 2°C (36°F) and a mild maximum of 12°C (54°F). Be prepared for 100 mm (3.9 in) of precipitation spread over 14 days, with humidity levels often reaching a humid 93%. Stay cozy and enjoy the atmosphere!

June Temperature in Unalaska

In June in Unalaska, the average temperature is 7°C (46°F). The maximum can reach 12°C (54°F), and the minimum can be as low as 2°C (36°F). It's advisable to pack layers and be prepared for cooler weather when visiting during this time.

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

The chart illustrates June temperature patterns in Unalaska, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Unalaska, June typically has an average temperature of 7°C (46°F), with highs reaching up to 12°C (54°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec303332354045505147423632
Data source: Temperature data for Unalaska 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 Unalaska

In Unalaska in June, the total precipitation amount is 100 mm (3.9 in) spread over 14 days.

June Precipitation Trends in Unalaska

The chart displays monthly precipitation patterns in Unalaska, 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. In Unalaska, June typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec9515792991151006589117147113157
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Unalaska

In Unalaska in June humidity is 93%. With an average temperature of 7°C (46°F), this humidity feels like an unwelcome chill that clings to your skin, making outdoor activities uncomfortable and necessitating layers to stay warm while navigating the damp air.

June Average Humidity in Unalaska

This chart illustrates the average monthly humidity levels in Unalaska, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Unalaska is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%84%83%84%90%93%95%92%86%82%81%83%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Unalaska

In Unalaska in June, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Unalaska.

Maximum UV Index Levels in Unalaska for June

The chart shows the monthly maximum UV Index (UVI) for Unalaska 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. In June, the maximum UV index in Unalaska typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123567885321
Data source: Unalaska 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.

How June Weather in Unalaska Compares to Other Months

Weather in Unalaska varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Unalaska, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Unalaska, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)95 mm (3.8 inches)83%low
February Weather1°C (33°F)157 mm (6.2 inches)84%low
March Weather0°C (32°F)92 mm (3.6 inches)83%moderate
April Weather2°C (35°F)99 mm (3.9 inches)84%moderate
May Weather4°C (40°F)115 mm (4.5 inches)90%high
June Weather7°C (46°F)100 mm (3.9 inches)93%high
July Weather10°C (50°F)65 mm (2.6 inches)95%very high
August Weather11°C (51°F)89 mm (3.5 inches)92%very high
September Weather9°C (48°F)117 mm (4.6 inches)86%moderate
October Weather5°C (42°F)147 mm (5.8 inches)82%moderate
November Weather2°C (37°F)113 mm (4.5 inches)81%low
December Weather0°C (32°F)157 mm (6.2 inches)82%low

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