Whether tonight is worth heading out for the northern lights — space-weather activity, cloud cover and the hours of darkness, together.
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The sky doesn’t get dark enough to see aurora right now.
Around Churchill the nights are dark enough for aurora roughly from late August to mid-April. Through the bright weeks of late spring and early summer the sky never fully darkens, so even a strong storm stays out of sight.
| Night | Dark hours | Expected Kp | Sky |
|---|---|---|---|
| Fri 10 Jul | No dark window | — | — |
| Sat 11 Jul | No dark window | — | — |
| Sun 12 Jul | No dark window | — | — |
Churchill sits almost directly beneath the band where the northern lights appear most often. On a dark, clear night the aurora can show even when geomagnetic activity is only moderate — which is why the town has built a winter season around it.
The clearest, darkest viewing tends to come from late autumn through to early spring, away from the long daylight of summer. The coldest months are also often the clearest.
Space weather is only half the story. A storm overhead does nothing if cloud is in the way, so this page weighs the cloud forecast over the dark hours alongside the activity.
Updated 9 July at 17:23. The aurora is famously unpredictable. This blends NOAA’s space-weather model with the cloud forecast and the hours of darkness — it can point you to a promising night, but it can’t promise a show. Official forecast: swpc.noaa.gov. Space weather: NOAA Space Weather Prediction Center (public domain). Cloud & daylight: Open-Meteo (CC BY 4.0).