City forecast
Aurora forecast for Key West, FL
Tonight's northern lights forecast for Key West, FL. Real-time Kp, weather, and viewing window.
Current Kp
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3-Hr Forecast
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Geomagnetic Storm Level
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Live aurora data →Mean visibility probability, northern hemisphere (≥ 45° N)
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3-Day outlook
NOAA Kp forecastAbout aurora viewing in Key West, FL
Key West, FL sits at roughly 24.6°N, placing it in the low-latitude aurora visibility band. Aurora sightings from this latitude require extreme geomagnetic storms (Kp ≥ 8). These events happen a handful of times per solar cycle.
Best viewing is typically 22:00–02:00 local time. Prioritize dark-sky sites north of the city, low humidity, minimal cloud cover, and a moon that is below the horizon or in a low-illumination phase.
FAQ
Can you see the Northern Lights in Key West, FL?
Rarely. Key West, FL is far enough south that only extreme geomagnetic storms, around Kp 9 or higher, bring the aurora into view. These events happen a handful of times per solar cycle.
What Kp index is required to see the aurora in Key West, FL?
Approximately Kp 9, based on a latitude of 24.6°N and NOAA's aurora forecast bands. This is an estimate — actual visibility also depends on cloud cover, moon phase, and how active the storm is.
When is the best time of year to see the Northern Lights in Key West, FL?
Geomagnetic activity is statistically higher around the spring and fall equinoxes (March–April and September–October) due to a well-documented seasonal pattern called the Russell-McPherron effect. Long, dark nights help too — so equinox months combined with winter's extended darkness generally offer the best odds.
Where should you go outside Key West, FL for darker skies?
Head away from downtown light pollution, ideally north-facing and toward rural or elevated areas with an unobstructed view of the northern horizon. Even 20-30 minutes outside a city center can meaningfully darken the sky.
Nearby aurora forecasts
Live aurora conditions for locations near Key West, FL.
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