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Northern Lights Forecast for Tartu Tonight

Tartu can occasionally see the northern lights during stronger geomagnetic activity, provided the sky is clear and the northern horizon is dark.

Unlikely tonight

This is probably not a night to travel

The forecast does not currently show enough aurora activity for this location. Check again later or compare places farther north.

Tonight in Tartu: None chance

Practical viewing window: 8:01 PM–6:16 AM local time

Darkness guide

Is twilight good or bad for aurora?

Darker is better. A darker sky creates more contrast, making faint colors and movement easier to see.

Full darkness

Best visibilityYour forecast

Sun below −18°

The sky offers its best contrast. Fainter aurora has a better chance of standing out.

Astronomical twilight

Good, with limits

Sun between −18° and −12°

The sky is not completely dark, but a moderate or bright display can still be clearly visible.

Nautical twilight

Difficult

Sun between −12° and −6°

Twilight still brightens the sky. Usually only vivid aurora will be easy to see with your eyes.

Bright summer sky

Poor visibility

Sun stays above −6°

The sky is too bright for routine viewing. An exceptional display may still appear, but it is not something to plan around.

Practical takeaway: aurora activity and darkness are separate. A strong forecast during twilight means aurora may be active, but the bright sky can make it harder to see.
Now
None
Typical activity
Kp 5+
Approximate oval reach
Where to look
Low toward the northern horizon
Weather
Sky outlook unavailable
Aurora activity, darkness, and cloud cover are evaluated separately. The forecast uses the local observing night, including nights that cross UTC dates. Aurora forecast data refreshes every ten minutes. See how the forecast works.

Night-by-night forecast for Tartu

Tonight

Sep 20

None
Peak Kp 2.0

Tomorrow

Sep 21

None
Peak Kp 1.7

Tuesday

Sep 22

None
Peak Kp 1.7
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Local viewing guide

Aurora inTartu

Latitude
58.4° N
Location
Tartu County, Estonia

At roughly 58.4° north in Tartu County, Tartu can see the northern lights when geomagnetic activity becomes strong enough to move the aurora farther south. Displays are occasional rather than routine and may begin low on the northern horizon. Tartu’s inland southern-Estonia position usually needs stronger activity than Tallinn or Narva, along with a clear northern view.

Urban light in Tartu can still hide subtle arcs even though the city is smaller than a major capital. A darker edge-of-town location with a broad view of the sky can make faint structure easier to distinguish.

Longer nights from autumn through early spring provide the best opportunity to notice a faint display. Darkness alone is not enough, though; the aurora forecast must strengthen and the local sky must stay clear at the same time.

Treat a promising Tartu forecast as a reason to prepare, not a promise of a display. Check the sky repeatedly, use an unobstructed northern horizon, and remember that a phone or camera may reveal weak color before it is clear to the naked eye.

How to use tonight's forecast in Tartu

The current aurora chance for Tartu is None. Use the local viewing guide above for Tartu-specific context, then combine the live rating with darkness and weather.

What the current chance means

A none or near-none chance in Tartu usually means tonight is not a strong aurora setup for this location. It is still useful context, because you can compare later updates or look at cities farther north for better odds.

Learn

Aurora guides for nights like Tartu

Read these guides when the Tartu forecast looks interesting but you still need help judging darkness, season, or viewing conditions.

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