aurora visibility now
Unlikely
Wait for darkness
Kp now 2.3 need 9+
Clouds 54% Mixed
Sky Daylight visibility
Tonight in Heraklion: Aurora is unlikely in Heraklion right now. The sky is not dark enough yet. AuroraMe watches Kp, clouds and darkness for this location and sends a free alert when a better viewing window opens.
Will Heraklion light up tonight? Get a free alert before the best viewing window opens.
Forecast
Scan the next hours here. The free app watches the longer window and sends alerts when conditions improve.
Time
Kp
Visibility
18.05, Today
12:00
2.3
Unlikely
13:00
2.3
Unlikely
14:00
2.3
Unlikely
15:00
2.0
Unlikely
16:00
2.0
Unlikely
17:00
2.0
Unlikely
18:00
5.0
Unlikely
21:00
4.0
Unlikely
00:00
3.3
Unlikely
19.05, Tomorrow
03:00
4.3
Unlikely
06:00
5.3
Unlikely
09:00
3.7
Unlikely
12:00
2.7
Unlikely
15:00
2.0
Unlikely
18:00
2.0
Unlikely
21:00
3.0
Unlikely
00:00
3.3
Unlikely
20.05, Wednesday
03:00
2.3
Unlikely
06:00
2.3
Unlikely
09:00
2.0
Unlikely
12:00
2.0
Unlikely
15:00
2.0
Unlikely
18:00
2.0
Unlikely
21:00
2.0
Unlikely
00:00
2.0
Unlikely
21.05, Thursday
03:00
2.7
Unlikely
Know the Best Hour Before You Go
72-hour forecast for Heraklion: Kp, clouds, moon and darkness by hour
...
aurora nights per year
Kp ≥ 9 · 11 years of data
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📅 All 12 months ranked 🛏️ Min nights for 80% chance 🔔 Push alert 1h before aurora 🌙 72h hour-by-hour forecast
Why this forecast?
Aurora Zone
Higher Aurora Zone = better aurora visibility. Your location's Aurora Zone determines how often auroras appear overhead.
Status Levels:
PerfectAbove 62.0° - Excellent aurora visibility (daily activity)
Good56.0° - 62.0° - Good aurora visibility (regular storms)
Acceptable50.0° - 56.0° - Fair aurora visibility (strong storms only)
LowBelow 50.0° - Poor aurora visibility (extreme storms)
Aurora Zone
Low 33.6°
Kp index
Kp measures global magnetic disturbance. Higher Kp = stronger auroras visible at lower latitudes.
Status Levels:
StormKp 6-9 - Geomagnetic storm, strong auroras
GoodKp 3-6 - Moderate activity, good conditions
LowKp 1-3 - Low activity, weak auroras
Very QuietKp 0-1 - Very quiet, minimal auroras
Kp index
Low 2.3
Cloud Cover Impact
Clear skies are essential for aurora viewing. Clouds block your view of the northern lights. The percentage shows cloud coverage (0-25% = clear, 85%+ = overcast).
Status Levels:
ClearClear (0-25%) - Perfect for aurora viewing
Partly CloudyPartly Cloudy (26-50%) - May partially block view
CloudyCloudy (51-85%) - Significantly blocks aurora
OvercastOvercast (85%+) - Blocks aurora completely
Cloud Cover Impact
☁️ Cloudy
Moonlight
Bright moonlight can wash out faint auroras. New moon provides the darkest skies for optimal viewing.
Status Levels:
New MoonDarkest skies - Best for faint auroras
CrescentDim moonlight - Good for viewing
QuarterModerate moonlight - May wash out weak auroras
GibbousBright moonlight - Reduces aurora visibility
Full MoonVery bright - Only strong auroras visible
Moonlight
🌒 Crescent 11%
Darkness
Darker skies are essential for aurora viewing. The sun must be below the horizon for auroras to be visible.
Status Levels:
NightDarkest conditions - Optimal for auroras
Astronomical TwilightDark enough - Good aurora viewing
Nautical TwilightGetting darker - Weak auroras may appear
DaylightSun is above horizon - No aurora visible
Darkness
Daylight
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Aurora is Rare in Heraklion — But Not Impossible
Kp 9+ needed to see aurora here
0 possible aurora nights in the next 27 days
Aurora Borealis Viewing in Heraklion
Crete's largest city with no aurora potential.
Heraklion sits at 33.6° magnetic latitude, which means aurora typically becomes visible when the Kp index reaches 9+. Aurora sightings in Heraklion require stronger geomagnetic storms (Kp 9+), which occur a few times per year. When storms do hit, the best viewing window is 10 PM to 2 AM local time under clear, dark skies.
Cloud cover is the most common reason people miss aurora even during strong storms. AuroraMe combines the Kp index with real-time cloud forecasts, moon phase, and darkness data to give you a single visibility status — so you know whether it's worth going outside tonight.
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Planning a trip? See the best months for Heraklion → • Northern lights tonight — all cities →
Learn More About the Northern Lights
Northern Lights in Heraklion: Quick Guide
Minimum Kp Needed
8.0+
Viewing Frequency
extremely rare
Current Kp Index
2.3
How often can you see northern lights in Heraklion?
Based on its magnetic latitude of <strong>33.6°</strong>, aurora viewing in Heraklion is <strong>extremely rare (visible only during exceptional geomagnetic storms)</strong>. We are currently near solar maximum (2024-2025), so expect higher-than-average activity.
Best viewing season: September to March, with peak activity during equinoxes (September and March).
What Kp index do I need to see aurora in Heraklion?
For Heraklion, you need a minimum Kp index of <strong>8.0</strong> for aurora to be visible. This threshold is calculated based on the city's magnetic latitude (33.6°).
Higher Kp values produce brighter, more active displays:
- Kp 8.0-9.0: Faint aurora visible in dark skies
- Kp 9.0-10.0: Moderate aurora with dancing patterns
- Kp 10.0+: Strong, colorful displays visible even with some light pollution
Current Kp index: 2.3
Where should I look for aurora in Heraklion?
Aurora is rarely visible this far south. When it does appear during extreme storms (Kp 7+), look for a faint glow on the northern horizon.
For best results, seek locations with minimal light pollution and unobstructed views of the sky. From Heraklion, aurora typically remains closer to the horizon, so elevated viewing locations help.
Can I see northern lights tonight in Heraklion?
Unlikely: Aurora unlikely tonight with Kp 2.3 (below 8.0 threshold for Heraklion). Enable alerts to catch future opportunities.
Real-time conditions: 53.9% cloud cover, aurora probability 0%. Check the live forecast above for the latest updates.
Traveling? Track multiple locations easily
Compare aurora chances across cities and get alerts for all your planned destinations.
For brighter shows consider Fairbanks , Yellowknife