Southwest Finland (Turku)
August
Weather in Southwest Finland for August 2026
Your guide to Southwest Finland weather in August - trends and predictions
In general, the average temperature in Southwest Finland at the beginning of August is 20.7 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 18.1 °C by the end of August.
Southwest Finland experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 112.3 mm.
Temperatures
Rain 🌧️
10
Dry days
21
Rainy days
0
Snow days
20°/14°
Temperatures
20 km/h
Avg max wind
79 %
Avg humidity
Southwest Finland Weather August
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Temperatures trend during August in Southwest Finland
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August weather in Southwest Finland day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Light rain shower | 20° /13° | 5.2 mm | 4 | |
| 2 Aug. |  Moderate or heavy rain shower | 19° /14° | 13.4 mm | 4 | |
| 3 Aug. | Moderate or heavy rain shower | 20° /14° | 4.4 mm | 5 | |
| 4 Aug. | Moderate or heavy rain shower | 21° /14° | 10.2 mm | 5 | |
| 5 Aug. |  Cloudy | 20° /14° | 3.3 mm | 4 | |
| 6 Aug. | Moderate rain at times | 21° /14° | 2.2 mm | 5 | |
| 7 Aug. |  Overcast | 24° /15° | 0.7 mm | 5 | |
| 8 Aug. | Moderate or heavy rain shower | 21° /15° | 2.9 mm | 5 | |
| 9 Aug. | Moderate or heavy rain shower | 20° /14° | 2.9 mm | 5 | |
| 10 Aug. | Moderate or heavy rain shower | 19° /13° | 7.7 mm | 4 | |
| 11 Aug. |  Heavy rain at times | 19° /12° | 4.8 mm | 4 | |
| 12 Aug. |  Partly cloudy | 19° /12° | 1.8 mm | 5 | |
| 13 Aug. | Patchy rain possible | 21° /12° | 0.1 mm | 6 | |
| 14 Aug. | Patchy rain possible | 21° /14° | 0 mm | 5 | |
| 15 Aug. | Partly cloudy | 22° /16° | 2.7 mm | 6 | |
| 16 Aug. | Patchy rain possible | 19° /14° | 3.6 mm | 5 | |
| 17 Aug. |  Sunny | 20° /13° | 0.3 mm | 5 | |
| 18 Aug. | Partly cloudy | 20° /12° | 0.1 mm | 6 | |
| 19 Aug. | Patchy rain possible | 18° /11° | 0.5 mm | 4 | |
| 20 Aug. | Partly cloudy | 19° /10° | 0.1 mm | 5 | |
| 21 Aug. | Moderate or heavy rain shower | 19° /11° | 3.2 mm | 4 | |
| 22 Aug. | Light rain shower | 18° /12° | 2.7 mm | 4 | |
| 23 Aug. | Moderate or heavy rain shower | 19° /11° | 2.8 mm | 4 | |
| 24 Aug. | Moderate or heavy rain shower | 18° /12° | 6.2 mm | 4 | |
| 25 Aug. | Cloudy | 20° /12° | 1.1 mm | 4 | |
| 26 Aug. | Partly cloudy | 18° /12° | 0.6 mm | 5 | |
| 27 Aug. | Moderate or heavy rain shower | 17° /12° | 3.2 mm | 4 | |
| 28 Aug. | Light rain shower | 18° /13° | 4.7 mm | 4 | |
| 29 Aug. | Partly cloudy | 18° /13° | 1.4 mm | 5 | |
| 30 Aug. | Light rain shower | 19° /14° | 3.3 mm | 4 | |
| 31 Aug. | Patchy rain possible | 17° /12° | 4.3 mm | 4 | |
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Important Notice
Our weather forecast for Southwest Finland in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Southwest Finland forecast closer to your planned date for the most up-to-date weather information.
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Southwest Finland in August - FAQ
What are the expected maximum and minimum temperatures in Southwest Finland during August?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Southwest Finland during August?
Significant rainfall exceeding 112.3 mm is expected in Southwest Finland during August, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Southwest Finland during August?
The average wind speed in Southwest Finland during August is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Southwest Finland
Explore the daily rainfall trends and prepare for Southwest Finlands August weather 💧
UV exposure in Southwest Finland during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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