noun, plural ambiguities. 1. doubtfulness or uncertainty of meaning or intention: to speak with ambiguity; an ambiguity of manner. 2. an unclear, indefinite, or equivocal word, expression, meaning, etc.: a contract free of ambiguities; the ambiguities of modern poetry. Origin of ambiguity.
With four distinct seasons, Boston's weather is forever changing. Summer can be delightful with the ocean breezes helping keep the humid temps in control. Evening temperatures can be cool and may require a light sweater. And a pop up thunderstorm is not uncommon, so you may want to include an umbrella in your bag.
Averages for Boston in August. August is still very warm in Boston. The average temperature is still a very warm 26C (that's about 79F) during the day and only goes as low as 17C (about 63F) in the evenings. You can still expect rain on an average of 10 days of the month. The average monthly rain is around 91mm, with around 9 hours of average daily sunshine.