Cloud risk
Patchy but workable
38% cloud cover input.
Tonight decision engine
Know if tonight is worth the drive.
DarkestHour turns dark-sky maps, moon timing, clouds, seeing, transparency and satellite events into a simple field decision: go now, wait, or save the fuel.
Pulling live sky conditions...
Moon
Moon impact low
35% illumination at -4° altitude.
Light pollution
Bortle 4
Dark enough for useful visual and photo work.
Seeing / transparency
2.0 arcsec / 72%
Combined steadiness and clarity estimate.
Checking Pro access…
Pro wedge
Paid Pro saves wasted nights.
The free map gets users in. Pro must answer the expensive question for serious photographers and aurora chasers: is this rare clear window good enough to drive?
Best night this week
Best nearby dark-sky spot
Saved-place clear-sky alerts
Moon/cloud/seeing session brief
Aurora, meteor, ISS and Starlink watch alerts
Ad-free trip planning