Temperature
Pleasant by day, brisk at night.
68°Ftypical Aug high
Baltrum is most comfortable in early autumn. Summers are mild and winters are cool. Rain is spread through the year. Humidity is usually low.

Pleasant by day, brisk at night.
Recurring showers across the month.
Cloudier spells limit sunshine.
It rarely feels hot, though humidity can be noticeable during rainy periods.
Mostly cloudy skies.
Want a side-by-side climate view? Compare Baltrum with Vienna.
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