Temperature
Pleasant by day, brisk at night.
69°Ftypical Aug high
Arboga is most comfortable during summer. Summers are mild and winters are cold. Rain is spread through the year. Humidity is usually low.

Pleasant by day, brisk at night.
Frequent light showers across the month.
Cloudier spells limit sunshine.
It rarely feels hot or humid.
Mostly cloudy skies.
Want a side-by-side climate view? Compare Arboga with Helsinki.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 11, 2026
Data & methodology