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August Weather in Anchorage, United States

Last updated: June 24, 2025

In August, the average temperature in Anchorage, United States hovers around 24°C (76°F), offering a pleasant climate. However, temperatures can dip to a minimum of 13°C (56°F) and reach a warm maximum of 34°C (94°F). This month sees about 96 mm (3.8 in) of precipitation spread over 11 days, resulting in an average humidity of 70%, creating a refreshing atmosphere.

August Temperature in Anchorage

In August in Anchorage, the average temperature is 24°C (76°F). Maximums can reach 34°C (94°F), while minimums can dip as low as 13°C (56°F). This mild weather makes Anchorage an ideal destination for travelers seeking comfortable temperatures.

August Weather in Anchorage: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Anchorage, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Anchorage, August typically has an average temperature of 24°C (76°F), with highs reaching up to 34°C (94°F) and lows dropping to around 13°C (56°F).
JanFebMarAprMayJunJulAugSepOctNovDec353947566774787671604541
Data source: Temperature data for Anchorage 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.

August Precipitation in Anchorage

In Anchorage in August, the precipitation amount is 96 mm (3.8 in) spread over 11 days, resulting in a significant accumulation of rainfall.

August Precipitation Trends in Anchorage

The chart displays monthly precipitation patterns in Anchorage, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Anchorage, August typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec90137138141125158989611810391110
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Anchorage

In Anchorage in August, humidity is 70%. With an average temperature of 24°C (76°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities feel a bit sticky and heavier, so travelers should stay hydrated and take regular breaks to enjoy the sights comfortably.

August Average Humidity in Anchorage

This chart illustrates the average monthly humidity levels in Anchorage, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Anchorage is approximately 70%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%86%84%79%82%79%70%69%76%88%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Anchorage

In Anchorage in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Anchorage.

Maximum UV Index Levels in Anchorage for August

The chart shows the monthly maximum UV Index (UVI) for Anchorage in August, 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 August, the maximum UV index in Anchorage typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110108743
Data source: Anchorage August 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 August Weather in Anchorage Compares to Other Months

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

This table compares monthly weather conditions in Anchorage, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)90 mm (3.5 inches)87%moderate
February Weather4°C (40°F)137 mm (5.4 inches)85%moderate
March Weather9°C (48°F)138 mm (5.4 inches)86%high
April Weather13°C (56°F)141 mm (5.6 inches)84%very high
May Weather20°C (67°F)125 mm (4.9 inches)79%very high
June Weather23°C (75°F)158 mm (6.2 inches)82%extreme
July Weather26°C (78°F)98 mm (3.8 inches)79%very high
August Weather24°C (76°F)96 mm (3.8 inches)70%very high
September Weather22°C (71°F)118 mm (4.7 inches)69%very high
October Weather16°C (60°F)103 mm (4.1 inches)76%high
November Weather7°C (45°F)91 mm (3.6 inches)88%moderate
December Weather5°C (41°F)110 mm (4.3 inches)87%moderate

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