Thu, Aug 12
Perseids meteor shower 2027 from Helsinki
Best 11:50 PM–2:50 AM (radiant up to 58°).
Up to about 100 meteors an hour under a perfectly dark sky. The Moon is 84% lit on the peak night.
in 284 days 11 h
Times are local (GMT+3).
One notification in the late afternoon, only on nights with something worth going out for over Helsinki: a very bright ISS pass, a Starlink train, a meteor shower peak, planets together, a supermoon or eclipse, the northern lights, or a bright comet. Only the city is stored, not your location.
Put Helsinki's sky in your calendar
Full moons, meteor showers, eclipses and bright ISS passes (with a 10-minute reminder) appear in your calendar and update by themselves.
Plan your night
☁️ Clouds through the night
The hour-by-hour cloud forecast appears about five days before.
🌑 Find a dark sky
City light hides most of the show. Drive until the sky looks clearly darker (often 30–60 minutes out), away from streetlights, with an open view.
🛰️ Also crossing the sky that night
Bright ISS and Starlink passes during the best hours appear about five days before.
Shooting stars streak across the sky: up to about 100 an hour from a dark place, fewer this year in bright moonlight.
How to watch
- Find a dark place away from city lights and give your eyes 20 minutes to adjust.
- Lie back and look at a wide part of the sky; you do not need to face the radiant.
- Rates are highest in the hours before dawn.
Other cities
- StockholmBest 11:17 PM–2:32 AM (radiant up to 60°)
- WarsawBest 9:50 PM–3:35 AM (radiant up to 66°)
- CopenhagenBest 10:54 PM–3:39 AM (radiant up to 64°)
- MoscowBest 10:14 PM–2:59 AM (radiant up to 64°)
- BerlinBest 10:21 PM–4:06 AM (radiant up to 66°)
- OsloBest 11:47 PM–3:02 AM (radiant up to 60°)
- PragueBest 10:02 PM–4:17 AM (radiant up to 67°)
- ViennaBest 10:24 PM–4:09 AM (radiant up to 66°)
- MunichBest 10:43 PM–4:28 AM (radiant up to 66°)
- IstanbulBest 11:34 PM–4:49 AM (radiant up to 64°)
Calculated with Astronomy Engine (MIT license).