weather in helsinki august and september
Average Weather in September in Helsinki Finland. In Helsinki, the month of September is characterized by rapidly falling daily high temperatures, with daily highs decreasing by 9Â°F, from 63Â°F to 54Â°F over the course of the month, and rarely exceeding 70Â°F or dropping below 46Â°F.
Average Weather in August in Helsinki Finland. In Helsinki, the month of August is characterized by falling daily high temperatures, with daily highs decreasing by 7Â°F, from 70Â°F to 63Â°F over the course of the month, and rarely exceeding 78Â°F or dropping below 56Â°F.