The highest day temperature in October 2025 was 48°F. The lowest night temperature was 10°F. The average values for day and night temperatures during October were 37.3°F и 28.4°F respectivly.

The average sea surface temperature in October 2025 for Girdwood was 46.0°F. The maximum and minimum values were 43.4°F and 48.8°F respectively.

Most of the days in October are gloomy but you can also expect sunny days.

Precipitation total in October for Girdwood is 3.0 in. It makes october one of the most rainy months of the year.

The average wind speed in October is 5.5 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Girdwood in October is 2.8 hours.