Hanko Weather in August
August in Hanko sees daytime temperatures around 20°C (68°F) and lows of 16°C (61°F) at night. With around 76 mm (3 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Hanko in August
Climate statistics over the past 30 years suggest around 14 days of rain, with 76 mm (3 in) average for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Hanko in August
Hanko has perfect weather in August, with days reaching 20°C (68°F) and nights cooling to 16°C (61°F). During August, you'll experience the summer season. The difference between afternoon and evening temperatures is usually noticeable. At 16°C (61°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping. On average, it sees the highest temps of the year.If your ideal day consists of dry skies and pleasant temperatures, August typically offers the best circumstances for Hanko.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Hanko's climate page.
Hanko Temperature in August
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hanko typically drop from around 20°C (68°F) at the start of August to approximately 17°C (63°F) by the end. Nights are pleasant, with lows typically ranging from 13°C (55°F) to 16°C (61°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Hanko in August
Browse day-by-day weather records for Hanko spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hanko historical weather extremes in August
The extremes listed below come from historical weather data collected in Hanko from 1976 through 2025.
- The warmest day in August was on August 2, 2018, with a maximum of 27°C (81°F).
- The lowest daytime temperature in August was 11°C (52°F), recorded on August 9, 1987.
- Hanko registered its coldest August night on August 26, 1984, with temperatures dropping to 7°C (45°F).
Best Places in Finland in August
Find out more about the weather in Finland and which places have the best travel conditions in this month. See all of Finland in August →
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What to Wear in Hanko in August
Pleasant temperatures in August mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days.What To Do in Hanko in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Finland, check out our Hanko's climate page.
See the full Hanko climate overview or explore weather in Finland.