The highest day temperature in September 2023 was 60°F. The lowest night temperature was 30°F. The average values for day and night temperatures during September were 49.9°F и 41.3°F respectivly.

The average sea surface temperature in September 2023 for Seward was 53.5°F. The maximum and minimum values were 51.6°F and 55.0°F respectively.

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

Precipitation total in September for Seward is 1.4 in.

The average wind speed in September is 4.5 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 Seward in September is 4.2 hours.