August weather forecast
Finland

August is a transition month in Finland, marking the end of the warm summer season and the gradual onset of autumn. Temperatures during August range from 10°C (50°F) in the northernmost regions to 20°C (68°F) in the southern parts of the country, experiencing a subtle drop compared to July.

In the southern coastal cities of Helsinki and Turku, temperatures remain relatively warm due to the moderating effects of the Gulf Stream and North Atlantic Drift. Nonetheless, the northern regions, including Lapland, begin to feel the initial signs of the approaching autumn, with cooler temperatures and shorter days.

Despite the gradual shortening of daylight hours, the phenomenon of the 'midnight sun' is still present in the extreme north during the early part of the month. However, it gradually fades away as the month progresses, leading to darker nights.

August is the wettest month in Finland, with the highest rainfall of the year. The entire country experiences precipitation levels between 70mm (2.76") to 90mm (3.54"). Despite the increased rainfall, the weather remains largely pleasant, allowing outdoor activities to continue.

The Finnish landscape maintains its vibrant summer greenery in August, but signs of the approaching autumn start to emerge. The leaves on the trees begin to change colour, and the vegetation growth slows down. This creates a scenic blend of summer and autumn, adding to the charm of the Finnish landscape.

As August gives way to September, the weather continues to cool down, and the signs of autumn become more apparent. The arrival of September brings a change in the Finnish landscape, with the vibrant greenery gradually transforming into the beautiful hues of autumn.

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• Helsinki - August »
  August is the month with the warmest seawater with an average sea temperature of 16°C (60.8°F). In Helsinki, in August, the average water temperature is 16°C (60.8°F).
• Espoo - August »
  The month with the warmest seawater is August, with an average sea temperature of 18.7°C (65.7°F). The month with the warmest seawater is August, with an average sea temperature of 18.7°C (65.7°F).
• Tampere - August »
  In Tampere in August, during 15 rainfall days, 72mm (2.83") of precipitation is typically accumulated. On the first day of August in Tampere sunrise is at 04:56 and sunset at 22:05.
• Vantaa - August »
  August in Vantaa continues the city's warm sojourn, although it records a slight dip in temperatures compared to July, experiencing a high average of 20.5°C (68.9°F). The arrival of August in Vantaa records an average high-temperature of a still pleasant 20.5°C (68.9°F), closely related to the 22.5°C (72.5°F) observed in July.
• Oulu - August »
  On the last day of August, in Oulu, sunrise is at 05:56 and sunset at 20:40 EEST. In Oulu, in August, during 14.3 rainfall days, 41mm (1.61") of precipitation is typically accumulated.
• Turku - August »
  August is the month with the warmest seawater in Turku, Finland, with an average sea temperature of 12.8°C (55°F). July's transformation into August witnesses an average high-temperature of a still agreeable 20.5°C (68.9°F) in Turku, Finland, noting a minor change from the preceding month.
• Jyväskylä - August »
  In Jyväskylä, Finland, in August, during 14.7 rainfall days, 34mm (1.34") of precipitation is typically accumulated. In Jyväskylä, Finland, August is the summer's last hurray, bridging the gap between the warm and cold months.
• Lahti - August »
  On the first day of August in Lahti, Finland, sunrise is at 04:52 and sunset at 21:54. In Lahti snow does not fall in June through August.
• Kuopio - August »
  In Kuopio during August, the rain falls for 13.1 days and regularly aggregates up to 34mm (1.34") of precipitation. In Kuopio snow does not fall in July and August.
• Pori - August »
  August is the month with the warmest seawater in Pori with an average sea temperature of 14.8°C (58.6°F). The month with the warmest seawater in Pori is August, with an average sea temperature of 14.8°C (58.6°F).
• Kouvola - August »
  In Kouvola in August, during 15.3 rainfall days, 40mm (1.57") of precipitation is typically accumulated. On the first day of August in Kouvola, sunrise is at 04:49 and sunset at 21:49.
• Joensuu - August »
  In Joensuu in August, during 16.9 rainfall days, 57mm (2.24") of precipitation is typically accumulated. In Joensuu, during August, the rain falls for 16.9 days and regularly aggregates up to 57mm (2.24") of precipitation.