Last updated: August 23, 2025
In June, the average temperature in Siuntio, Finland hovers around 16°C (61°F), providing a mild climate for outdoor activities. Expect a minimum of about 3°C (38°F) on cooler days, while the maximum can reach a warm 29°C (84°F). Be prepared for some rain, with an average precipitation amount of 51 mm (2.0 in) over 8 days of the month. The atmosphere is generally humid, with an average humidity level of 75%.
In June in Siuntio, the average temperature is 16°C (61°F). The maximum can reach 29°C (84°F), and the minimum can be as low as 3°C (38°F). This makes Siuntio a comfortable destination for travelers looking to enjoy moderate weather.
In Siuntio in June, the total precipitation amount is 51 mm (2.0 in), spread over a duration of 8 days.
In Siuntio in June humidity is 75%. With an average temperature of 16°C (61°F), this humidity feels like a warm, muggy embrace, making traveling somewhat uncomfortable as you may find yourself constantly adjusting your clothing and seeking shade to escape the sticky air.
In Siuntio in June, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Siuntio.
UV Risk Categories
Weather in Siuntio varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Siuntio, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 58 mm (2.3 inches) | 97% | low |
| February Weather | -3°C (26°F) | 49 mm (1.9 inches) | 95% | low |
| March Weather | -1°C (31°F) | 54 mm (2.1 inches) | 93% | moderate |
| April Weather | 3°C (39°F) | 40 mm (1.6 inches) | 86% | moderate |
| May Weather | 10°C (50°F) | 53 mm (2.1 inches) | 75% | moderate |
| June Weather | 16°C (61°F) | 51 mm (2.0 inches) | 75% | high |
| July Weather | 18°C (64°F) | 83 mm (3.3 inches) | 80% | high |
| August Weather | 16°C (62°F) | 78 mm (3.1 inches) | 83% | moderate |
| September Weather | 12°C (54°F) | 65 mm (2.6 inches) | 90% | moderate |
| October Weather | 7°C (45°F) | 88 mm (3.5 inches) | 93% | low |
| November Weather | 3°C (38°F) | 63 mm (2.5 inches) | 94% | low |
| December Weather | -1°C (31°F) | 75 mm (2.9 inches) | 95% | low |