Last updated: February 24, 2025
In August, Anchorage experiences a mild climate characterized by a maximum temperature reaching 23°C (74°F) and a comfortable average of 15°C (59°F). While night temperatures can dip to a cool 7°C (44°F), the month is often marked by high humidity levels peaking at 99%, offering a unique coastal feel. Rain is a regular visitor, with an average precipitation of 112 mm (4.4 in) spread across 15 days, making this month a blend of warm days and refreshing showers, perfect for exploring the stunning natural beauty of the region.
In August, Anchorage enjoys a delightful respite from the cold with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 23°C (74°F). The average temperature settles comfortably around 15°C (59°F), embodying the essence of summer in this northern locale. As the warmest month of the year, August showcases a transition from the brisk temperatures of earlier months, gradually paving the way for the cooler fall season ahead. The consistent warmth presents an inviting atmosphere for outdoor activities, allowing residents and visitors to relish in the vibrant natural beauty before the impending chill of September. Overall, August highlights Anchorage's ability to balance extremes, offering a brief yet enjoyable summer that starkly contrasts its harsh winter months.
In August, Anchorage experiences a significant spike in precipitation, with an average of 112 mm (4.4 in) over 15 days, marking it as one of the wettest months of the year. This increase follows July’s rainfall, which at 73 mm (2.9 in) and 12 rainy days foreshadows August's downpour. As summer transitions into fall, the heightened moisture levels continue with September also showcasing substantial precipitation at 109 mm (4.3 in). The rainfall pattern indicates a gradual uptick as Anchorage approaches the wetter autumn season, characterized by more frequent and substantial precipitation, culminating in October's highest average of 129 mm (5.1 in). This trend highlights the shift from the initial summer dryness to the wetter conditions that define the latter part of the year.
In Anchorage, the August humidity remains high at 99%, continuing the trend of intense moisture that peaks during the summer months. Following a sweltering July, where humidity reached a staggering 100%, August maintains this near-saturation level, showcasing the region's characteristic damp climate. As we transition into the autumn months, the humidity gradually decreases, with September dropping to 97%. This sustained humidity throughout the summer not only shapes Anchorage's weather patterns but also influences its lush landscapes and vibrant ecosystems, making the city a uniquely picturesque destination during the warmer season.
In August, Anchorage experiences a moderate UV Index of 5, offering a slight reprieve from the higher levels seen during the peak summer months. As the sun begins its gradual descent towards autumn, locals and visitors enjoy the beautiful outdoors while still needing to be mindful of their sun exposure, with a burn time of roughly 30 minutes for unprotected skin. This trend reflects the overall progression of the year, where the UV Index rises from a low of 1 in the winter months to a high of 7 in July before tapering off again. As you plan your summer activities, it’s essential to be aware of these shifts in UV levels. For more insights, check out the Anchorage UV Index.
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In August, Anchorage basks in the fading warmth of summer, recording an impressive 267 hours of sunshine. This month marks a transition, as daylight begins to wane after the vibrant June peak of 319 hours. While August's sun-soaked days still shine brightly, they reflect a gradual decline, continuing a downward trend into the cooler months that follow. The sunlit hours in August are reminiscent of July’s 300 hours, but as the days shorten, residents and visitors alike savor the lingering warmth, knowing that soon the long, dark winter will settle in with just 39 hours of sunlight by December.
In Anchorage, United States, August sees a 34% chance of sunny weather, which, while modest, reflects a slight upward trend compared to the less sunny months of July and June, with chances dropping to 23% and 30%, respectively. This makes August one of the more favorable summer months for sun-seekers, although it still falls short of the brighter days found in spring, where April enjoys a peak at 50%. As the seasons transition toward autumn in September, the likelihood of sunny days dips to 30%, indicating that August serves as a brief, albeit hopeful, reprieve before the chill returns. With this moderate prospect for sunshine, Anchorage offers a pleasant backdrop for outdoor activities, even if the warm rays are a bit of a gamble.
In August, Anchorage experiences a transition in daylight that reflects the fleeting days of summer. With approximately 15 hours of daylight, this month marks a gradual decrease from the sun-drenched heights of 19 hours in June and 18 hours in July. As the vibrant energy of the summer months begins to ebb, August offers a still-ample opportunity for outdoor adventures, even as the longer days give way to the shorter, crisp daylight of September. This trend embodies the unique rhythm of life in Alaska, where the long summer days slowly yield to the cozy embrace of autumn.
In August, the winds in Anchorage gentle themselves to an average speed of 2.0 m/s (5 mph), marking a subtle uptick from the calm of summer months. Following a gradual decline through late spring and early summer, where July recorded the lowest wind speeds at 1.8 m/s (4 mph), August sees a slight resurgence. This modest increase suggests a transitional phase as the city edges toward fall, where wind speeds begin to stabilize at 2.4 m/s (5 mph) in September. The overall trend demonstrates a pattern of decreased wind characteristic of the peak summer, followed by a moderate revival, reflective of the changing seasons in this unique northern landscape.
The weather in Anchorage changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Anchorage and find detailed weather information for every month.
August and January present stark contrasts in weather, reflecting the seasonal shift in the region. In August, temperatures range from a minimum of 7°C (44°F) to a maximum of 23°C (74°F), with an average of 15°C (59°F) and high humidity at 99%. The month experiences considerable precipitation, totaling 112 mm (4.4 in) over about 15 days.
In contrast, January is much colder, with temperatures plummeting to a minimum of -25°C (-12°F) and only reaching a maximum of 7°C (44°F), averaging -7°C (19°F). Precipitation is significantly lower at 52 mm (2.1 in) over around 10 days, and humidity remains high at 95%. For a more detailed look at January weather patterns, visit Anchorage weather in January.
August and February present starkly contrasting weather patterns. In August, temperatures range from a minimum of 7°C (44°F) to a pleasant maximum of 23°C (74°F), accompanied by significant precipitation of 112 mm (4.4 in) over about 15 days. The humidity is high at 99%, contributing to a muggy atmosphere. Conversely, February experiences much colder conditions, with temperatures dropping as low as -18°C (0°F) and averaging around -5°C (23°F). Precipitation is lighter, totaling 52 mm (2.0 in) across about 10 days, while humidity is slightly lower at 95%. For more details on February weather, you can visit Anchorage weather in February.
When comparing the weather in August and March, it’s clear that August is significantly milder and wetter. August features a temperature range from a chilly 7°C (44°F) to a warm 23°C (74°F), with an average temp of 15°C (59°F). In contrast, March experiences much colder temperatures, ranging from a frigid -17°C (2°F) to a maximum of 8°C (46°F), and an average of -3°C (27°F). While August sees considerable precipitation with 112 mm (4.4 in) over 15 days, March has much less, recording only 44 mm (1.7 in) over 9 days. Humidity levels are also higher in August at 99%, compared to March's 90%. For a more detailed look at March weather, check out Anchorage weather in March.
In comparing the weather between August and April, we see a stark contrast. August presents milder temperatures, with averages around 15°C (59°F) and a comfortable maximum of 23°C (74°F), while April is significantly cooler, with an average of just 3°C (37°F) and potential lows plunging to -14°C (7°F). Furthermore, August experiences a higher frequency of precipitation, with 112 mm (4.4 in) over 15 days, compared to April’s relatively drier climate of 35 mm (1.4 in) over only 8 days. Humidity levels in August also peak at 99%, creating a much more humid atmosphere than April's 82%. For further details on April weather, please visit Anchorage weather in April.
August weather in Anchorage features a milder temperature range, with minimums around 7°C (44°F) and maximums reaching 23°C (74°F), resulting in an average temperature of 15°C (59°F). In contrast, May is cooler, beginning with minimum temperatures dropping to -1°C (31°F) and peaking at a maximum of 19°C (67°F), leading to a lower average of 8°C (48°F). While August experiences more precipitation, totaling 112 mm (4.4 inches) over 15 days and higher humidity at 99%, May sees less rainfall at 52 mm (2.1 inches) across 11 days, accompanied by lower humidity at 85%. For a detailed look at the weather trends during this month, visit Anchorage weather in May.
When comparing the weather in August and June, we see some notable differences. August tends to be slightly warmer with average temperatures around 15°C (59°F), compared to June's average of 13°C (56°F). While June boasts a higher maximum temperature of 25°C (78°F) relative to August's 23°C (74°F), it also experiences less precipitation, with only 48 mm (1.9 in) over 12 days compared to August's 112 mm (4.4 in) over 15 days. Additionally, humidity is slightly higher in August at 99%, versus June's 95%. For more detailed information on June weather, you can visit Anchorage weather in June.
In comparing the weather of July and August, we see notable differences in temperature and precipitation. July experiences slightly warmer temperatures, with a minimum of 10°C (50°F), an average of 16°C (61°F), and a maximum of 27°C (81°F). In contrast, August is cooler, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 23°C (74°F). Additionally, August is wetter, receiving 112 mm (4.4 in) of precipitation over 15 days, compared to July's 73 mm (2.9 in) over 12 days. Interestingly, while both months exhibit high humidity levels, July sees a humidity of 100%, while August hovers at 99%. For more detailed insights, you can check out Anchorage weather in July.
August and September present a notable shift in weather conditions. In August, temperatures range from a minimum of 7°C (44°F) to a maximum of 23°C (74°F), with an average of 15°C (59°F). This month experiences significant rainfall, totaling 112 mm (4.4 in) over 15 days, coupled with high humidity at 99%. In contrast, September sees cooler temperatures, with a minimum dipping to -1°C (31°F) and a maximum of 18°C (65°F), averaging 11°C (52°F). Rainfall remains comparable at 109 mm (4.3 in) but occurs over 17 days, indicating a slightly wetter month. Humidity also decreases slightly to 97%. For more detailed information, you can check out Anchorage weather in September.
August and October present contrasting weather conditions. In August, temperatures range from a mild 7°C (44°F) to a comfortable maximum of 23°C (74°F), with an average around 15°C (59°F). Despite the warmer temperatures, August experiences significant rainfall, totaling 112 mm (4.4 in) over 15 days and high humidity at 99%. In contrast, October brings a notable drop in temperatures, with minimums plunging to -7°C (20°F) and an average of just 5°C (41°F). The maximum temperature only reaches 14°C (57°F), and precipitation increases slightly to 129 mm (5.1 in) over 17 days, alongside a lower humidity level of 93%. For a deeper insight into October weather specifics, you can check out Anchorage weather in October.
August and November present stark contrasts in weather conditions. In August, temperatures range from a mild 7°C (44°F) to a warm 23°C (74°F), with an average of 15°C (59°F) and high humidity at 99%. This month experiences considerable precipitation, totaling 112 mm (4.4 in) over approximately 15 days, creating a lush and damp environment. In contrast, November plunges into winter, with temperatures dropping significantly to a minimum of -20°C (-4°F) and a daily average of -3°C (27°F). The maximum temperature only reaches 7°C (44°F), while humidity remains high at 97%. November sees slightly less precipitation at 87 mm (3.4 in) spread across about 12 days. For more detailed insights into the typical weather in November, you can explore Anchorage weather in November.
The weather in August is mild, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 23°C (74°F), and an average of 15°C (59°F). However, it also sees significant precipitation, totaling 112 mm (4.4 in) over about 15 days, coupled with high humidity at 99%. In contrast, December brings much colder conditions, with temperatures dropping to a minimum of -21°C (-6°F) and averaging -4°C (25°F), peaking at just 7°C (44°F). Precipitation is slightly lower at 99 mm (3.9 in) across 16 days, maintaining a humidity level of 98%. For a more detailed look at the winter climate, check out Anchorage weather in December.
August in Anchorage stands out as a transitional month, marked by a notable warmth compared to the cooler summer months. Average temperatures hover around a comfortable 15°C (59°F), but the maximum can reach a pleasant 23°C (74°F), inviting residents and visitors alike to bask in the last bits of summer. However, this month also sees an uptick in precipitation, with nearly half the days experiencing rain, contributing to a high humidity level of 99%. This combination of warmth and moisture not only enhances the lush landscapes but contrasts sharply with the drier conditions that precede it. As summer begins to yield to autumn, August offers a unique weather experience that’s well worth exploring. For more insights, visit Anchorage Climate.