Last updated: August 23, 2025
In August, the average temperature in Rantasalmi, Finland hovers around 15°C (60°F). You'll experience a minimum of 7°C (45°F) and a pleasant maximum of 30°C (85°F). Be prepared for some rain, as the area sees about 81 mm (3.2 in) of precipitation over 14 days. With an average humidity of 84%, the air can feel quite tropical!
In August in Rantasalmi, the average temperature is 15°C (60°F). Maximums can reach 30°C (85°F), and minimums can be as low as 7°C (45°F). This mild climate makes Rantasalmi an ideal destination for travelers seeking comfortable weather and outdoor activities.
In Rantasalmi in August, the precipitation amount is 81 mm (3.2 in) over a span of 14 days.
In Rantasalmi in August humidity is 84%. With an average temperature of 15°C (60°F), this humidity feels like a warm blanket wrapped around you, making outdoor exploration feel stifling and sticky, while creating a heavy air that may slow your pace and dampen your enthusiasm for sightseeing.
In Rantasalmi in August, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Rantasalmi.
UV Risk Categories
Weather in Rantasalmi varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Rantasalmi, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (22°F) | 49 mm (1.9 inches) | 98% | low |
| February Weather | -6°C (21°F) | 44 mm (1.7 inches) | 96% | low |
| March Weather | -3°C (27°F) | 46 mm (1.8 inches) | 93% | moderate |
| April Weather | 2°C (36°F) | 46 mm (1.8 inches) | 88% | moderate |
| May Weather | 10°C (49°F) | 55 mm (2.2 inches) | 77% | moderate |
| June Weather | 16°C (61°F) | 67 mm (2.6 inches) | 75% | high |
| July Weather | 17°C (63°F) | 77 mm (3.0 inches) | 82% | high |
| August Weather | 15°C (60°F) | 81 mm (3.2 inches) | 84% | moderate |
| September Weather | 10°C (51°F) | 77 mm (3.0 inches) | 90% | moderate |
| October Weather | 5°C (42°F) | 76 mm (3.0 inches) | 93% | low |
| November Weather | 1°C (34°F) | 57 mm (2.2 inches) | 93% | low |
| December Weather | -4°C (26°F) | 70 mm (2.8 inches) | 95% | low |