Northern Lights tonight in Rijeka

Tonight in Rijeka

Rijeka sits at a geomagnetic latitude of 45.0° N, so the aurora is only seen here in extreme Kp 9 storms, and then mostly by cameras. Tonight's NOAA forecast peaks at Kp 3 (quiet) during the dark hours, far below that.

Open-Meteo expects about 32% cloud cover on average between 8 pm and 6 am local time, with 5 of 10 dark hours mostly clear (30% cloud or less).

The Moon is 100% illuminated (full moon), bright enough to wash out a faint aurora, so only a stronger display will stand out. For the best view look north, low on the horizon, from somewhere away from street lights.

Right now NOAA's OVATION model gives up to 0% chance of aurora in the part of the sky visible from Rijeka. OVATION is a short-range nowcast (30 to 90 minutes ahead), useful for deciding whether to step outside now.

3-day Kp forecast

None of the next 3 days reaches the Kp 9 that Rijeka needs. Kp is a global 0–9 index of geomagnetic activity, issued in 3-hour blocks (UTC); NOAA forecasts beyond 24 hours are uncertain, because storms are triggered by solar eruptions that take 1–3 days to arrive.

Why Rijeka needs Kp 9

The aurora forms in an oval around the geomagnetic pole, which sits in the Canadian Arctic (about 80.8° N, 72.8° W), not at the geographic pole. That is why the Kp a city needs depends on its geomagnetic rather than its geographic latitude. At Kp 0 the oval's edge is near 66° geomagnetic; each step of Kp pushes it roughly 2° toward the equator.

Rijeka is at 45.0° geomagnetic, far enough from the pole that only extreme (Kp 9, G5) storms like May 2024 bring the aurora into view, and then mostly to cameras.

Aurora forecast for nearby cities

• Northern lights Trieste
• Northern lights Ljubljana
• Northern lights Udine
• Northern lights Zagreb
• Northern lights Klagenfurt am Wörthersee
• Northern lights Venice
• Northern lights Mestre
• Northern lights Padua

More sky and weather

• Aurora forecast (all cities)
• Northern Taurids meteor shower
• Meteor showers
• Weather warnings