August · Finland
Best time to visit Turku in August Weather, crowds & prices
Weather in Turku in August
Average temperature 18°C, 90 mm of rain, about 13 days with 6+ hours of sunshine and 80% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
7.5/10
Ranked #4 of 12 months
- Avg temp
- 18°C
- Rainfall
- 90 mm
- Humidity
- 80%
- Days with 6h+ sun
- 13
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Turku scores 7.5/10 for sightseeing and cultural travel - an above-average month (#4 of 12). Expect around 18°C, 90 mm of rain, and roughly 13 days with 6+ hours of sunshine this month.
Turku, Finland's oldest city, lines the Aura river with a medieval castle, a cathedral and ferries to the archipelago.
August in Turku — reliably good (4th best month)
Temperatures hover around 18°C (64°F) — the kind of month where neither heat nor cold forces the schedule.
Budget for roughly 90 mm of rain this month — a flexible day or two helps — with about 13 days with 6+ hours of sunshine and 15.4 hours of daylight to work around it.
That is 7.5/10 on the same scale — 4th of 12 months, versus 9.4/10 for the best month here.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Expect peak pricing, and this is one of the busiest months here.
If your dates are flexible, June is materially better in Turku — 1.9 points higher on the same scale.
Frequently asked
- What is the weather like in Turku in August?
- In August, Turku averages 18°C, 90 mm of rain, and about 13 days with 6+ hours of sunshine. Its climate-comfort score is 7.5/10.
- Is August a good time to visit Turku?
- August earns a 7.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Turku in August?
- Expect about 90 mm of rain in August. Average humidity is 80% and there are about 13 days with 6+ hours of sunshine.
Curated in Turku
Tickets & experiences
Things to do in Turku
Turku, Finland. Live activities and tours from GetYourGuide, matched to this destination.