In August, Anchorage typically sees daytime highs of 17.6°C and overnight lows around 8.9°C. Compared to the annual average high of 6.4°C, August runs +11.2°C.
August in Anchorage averages a daytime high of 17.6°C and an overnight low of 8.9°C.
August runs +11.2°C compared to Anchorage's annual average high of 6.4°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 17.6°C and cooler evenings around 8.9°C.