The highest day temperature in August 2023 was 85°F. The lowest night temperature was 59°F. The average values for day and night temperatures during August were 77.3°F и 66.5°F respectivly.

The average sea surface temperature in August 2023 for Plymouth was 67.1°F. The maximum and minimum values were 64.8°F and 70.2°F respectively.

Most of the days in August are cloudy but you can also expect sunny or gloomy days.

Precipitation total in August for Plymouth is 1.1 in. It makes august one of the least rainy months of the year.

The average wind speed in August is 7.7 mph. It makes August one of the most windless months of the year for Plymouth.

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 Plymouth in August is 7.8 hours.