The highest day temperature in May 2026 was 46°F. The lowest night temperature was 19°F. The average values for day and night temperatures during May were 38.5°F и 31.6°F respectivly.

The average sea surface temperature in May 2026 for Seward was 44.3°F. The maximum and minimum values were 41.2°F and 48.2°F respectively.

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

Precipitation total in May for Seward is 2.2 in.

The average wind speed in May 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 May is 5.5 hours.