The first cross-border Dark Sky Park in the world — Jizera Mountains at ~900 m.
Updated:
· Tonight: Saturday, August 15, 2026
📍 CZ/PL border🌑 Bortle 3🚗 ≈ 1.5 h from Wrocław or 2 h from Prague to Jakuszyce/Jizerka.
About Izera
The Izera Dark-Sky Park was the world's first cross-border Dark Sky Park (Poland + Czech Republic, 2009). It covers the Jizera Mountains at around 900 m elevation.
What you can see in the sky
Summer Milky Way, planets, and 900 m elevation puts observers above most low fog.
Best time of year
Summer for hiking access; the plateau is often snow-bound December–March.
Why this site is worth the drive
First cross-border IDA Dark Sky Park
Plateau observing at ~900 m
Jizerka and Orle mountain lodges cater to stargazers
Practical tips for Izera
Arrive at dusk and give your eyes 20+ minutes to dark-adapt
Use a red headlamp — white light kills night vision
Bring warm layers; European mountain and coastal sites drop sharply after sunset
Live 48-hour forecast
Tonight's verdict above is a build-time snapshot. For the full
hourly view — cloud cover, transparency, seeing, smoke, humidity,
moon altitude and a Bortle-aware tonight score by observing mode
(visual, deep-sky, planetary, astrophoto) — open the live forecast:
The live page combines Open-Meteo weather, US-AQI wildfire smoke,
moon math and Bortle-scale darkness into a single tonight score
(0–100), updated continuously.
Frequently asked questions
Is Izera good for stargazing tonight?
Tonight's verdict is Excellent (High confidence). 5h of clear sky (≤30% cloud) during tonight's astronomical night, mean cloud 25%.
When is the best time of year to stargaze at Izera?
Summer for hiking access; the plateau is often snow-bound December–March.
How long is the drive from Toronto?
≈ 1.5 h from Wrocław or 2 h from Prague to Jakuszyce/Jizerka.
What can I see in the sky here?
Summer Milky Way, planets, and 900 m elevation puts observers above most low fog.
How dark is the sky? (Bortle scale)
Izera sits at Bortle class 3 on the 1–9 dark-sky scale, where 1 is a pristine wilderness sky and 9 is an inner-city sky.