Unlikely
Best chance in Arizona: Flagstaff
Free push alerts built on NOAA space weather data, plus the 72-hour forecast, cloud cover and darkness window for Flagstaff.
Northern lights in Arizona are rare: they need a geomagnetic storm at Kp 9, the top of the scale, to reach this far south. AuroraMe tracks 4 locations across Arizona, all at Kp 9; Flagstaff has the highest magnetic latitude.
Cities Covered
4
Monitoring locations across Arizona
Magnetic Latitude Range
39.3°–42.2° MLAT
Prime aurora viewing latitudes
Required Kp Index
Kp 9.0–9.0
Minimum activity for visibility
Kp Requirements by Location
Flagstaff
42.2° MLAT
Required Kp Levels
Kp 9.0+ Horizon
Kp 9.0+ Optimal
Kp 9.0+ Bright
Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9
Visible on horizon
Clearly visible
Bright overhead
Mesa
40.4° MLAT
Required Kp Levels
Kp 9.0+ Horizon
Kp 9.0+ Optimal
Kp 9.0+ Bright
Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9
Visible on horizon
Clearly visible
Bright overhead
Phoenix
40.4° MLAT
Required Kp Levels
Kp 9.0+ Horizon
Kp 9.0+ Optimal
Kp 9.0+ Bright
Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9
Visible on horizon
Clearly visible
Bright overhead
Tucson
39.3° MLAT
Required Kp Levels
Kp 9.0+ Horizon
Kp 9.0+ Optimal
Kp 9.0+ Bright
Kp0Kp1Kp2Kp3Kp4Kp5Kp6Kp7Kp8Kp9
Visible on horizon
Clearly visible
Bright overhead
Visible on horizon
Clearly visible
Bright overhead
Aurora Status by City
Flagstaff
Rare aurora viewing at 42.2° magnetic latitude. Only major geomagnetic storms (KP 9+) bring northern lights this far south. Worth monitoring during solar maximum.
CURRENT STATUS
Unlikely
View
Mesa
Rare aurora viewing at 40.4° magnetic latitude. Only major geomagnetic storms push the northern lights this far south, so it is worth monitoring during solar maximum.
CURRENT STATUS
Unlikely
View
Phoenix
At 40.4° MLAT, aurora is an uncommon treat. Severe geomagnetic storms can occasionally push northern lights to this latitude. Set alerts for KP 9+ events.
CURRENT STATUS
Unlikely
View
Tucson
Rare aurora viewing at 39.3° magnetic latitude. Only major geomagnetic storms push the northern lights this far south, so it is worth monitoring during solar maximum.
CURRENT STATUS
Unlikely
View
Best Viewing Season in Arizona
In a typical year no location we track in Arizona records a single clear night with Kp at its threshold. Only an extreme geomagnetic storm brings aurora this far south. Kp last reached the local threshold on 2024-05-11. Figures below are for Flagstaff, the best-placed of the 4 locations we track in Arizona. They describe a typical year built from the 1996-2026 planetary Kp record and the 2001-2020 cloud normal — not a forecast. Each city page shows tonight's live cloud, moon and darkness instead.
Geographic Advantages
Magnetic Latitude 39.3°–42.2° MLAT
Cities Covered 4 locations
Winter Darkness 11.2 h in December
Dark Sky Sites 0 Bortle 1-3
What It Would Take
Clear Nights a Year Under 1 a year
Kp Needed Kp 9+
Last Kp Threshold 2024-05-11
Oval Position (model) 4.8° above the northern horizon
Track with AuroraMe
Coverage All 4 cities
Advance Notice 30 minutes
Weather Integration Cloud cover
Predictions Best viewing times
That oval line is a model estimate of where the aurora sits at extreme Kp, not a measurement — the threshold date above comes from the Kp record itself.
Frequently Asked Questions
Can you see the northern lights in Arizona?
No — not in a typical year. Arizona averages under one clear night with the aurora in reach, and the planetary index has to reach Kp 9+ for it to be visible at all, which last happened on 2024-05-11. Only an extreme geomagnetic storm brings the aurora this far south, so this is a watch-the-alerts situation rather than a month to plan around.
Where are the darkest skies in Arizona?
Check our city pages for specific dark sky recommendations near each location.
