Northern Lights 'Hyperactive' on the Spring Equinox? Aurora Viewing Guide for 20–21 March 2026

Tonight, there’s a reason to look up. Around this time, the alignment of the Sun and Earth creates a kind of ‘magic’, and with the spring equinox tonight, the chances of the aurora appearing at lower latitudes than usual increase significantly. The latest models from meteorological agencies show a moderate to strong geomagnetic storm is likely from 20 to 21 March. This means that, besides Scandinavia and Canada, that mesmerising ‘celestial curtain’ might even be visible from your own city.

What Makes the Aurora So Special on the Spring Equinox?

Astronomy enthusiasts have long said that “the spring and autumn equinoxes are good years for auroras”, and for good reason. Speaking as someone who’s studied the relationship between Earth’s magnetosphere and solar wind for years, this is down to what’s known as the Russell-McPherron effect. Around the equinoxes, the orientation of the solar wind becomes nearly perpendicular to Earth’s rotational axis, making it easier for energy to accumulate in the magnetosphere. In simple terms, particles from the Sun are more effectively ‘funnelled’ into Earth’s magnetic field—several times more efficiently than usual. That’s the mechanism that supercharges the polar lights, or the aurora.

This year’s equinox is shaping up to be a perfect storm of conditions. The effects of a coronal hole that was recently active on the Sun’s surface are arriving at Earth right now. Forecasts for the geomagnetic storm have been upgraded from “G2 (Moderate)” to “G3 (Strong)”, and experts are excited, calling this “the most promising night in years”.

Prime Viewing Time: Two Consecutive Nights—Tonight and Tomorrow

The main event is expected after sunset tonight, Friday 20 March 2026, and into the late night. If forecasts hold, activity may continue during the same hours on Saturday 21 March. Geomagnetic disturbances are predicted to peak between 11 pm and 2 am.

Of course, the biggest challenges for aurora viewing are clouds and light pollution. This weekend, a high-pressure system is expected to cover much of the area from the Sea of Japan side to the Pacific side, providing clear skies across wide regions. In Hokkaido, the Tohoku region along the Sea of Japan, or in elevated areas, there’s a good chance of seeing faint pink or green bands with the naked eye. Even if you usually think of the aurora as something only seen on TV, tonight it’s worth looking north, just above the horizon.

If you’re keen to catch a glimpse tonight, there are three essentials you absolutely shouldn’t skip.

• Find a dark spot with a clear northern view: A coastline free of streetlights or a car park in the high country is ideal.
• Set your camera up on a tripod and leave it: Even if you can’t see it with your eyes, a long exposure can reveal a world of colour. Even your phone, fixed in night mode, might capture something unexpected.
• Dress for the depths of winter: A March night can be deceptively cold. A thermos of hot coffee and a hot water bottle are essentials.

The Romance Behind the Name ‘Aurora’

In Scandinavia and Russia, this natural phenomenon is called “Aurora”—a name that carries not just a beautiful sound, but the meaning “dawn”. Derived from the Roman goddess of dawn, the name perfectly captures the moment when darkness transforms into light. If you see the northern sky softly glowing tonight, it’s not just a light show; it could be the universe’s own herald of dawn.

I recall a night in an Icelandic fjord, waiting patiently in minus 15-degree cold. Just as others were giving up and heading back to the car, the entire sky began to ripple like a silk curtain. That moment moved me more than any high-tech gadget ever could. Data and forecasts are helpful, but in the end, it comes down to your own eyes and a bit of luck. Here’s hoping the goddess descends on your sky tonight.

So, charge your camera battery and fill your thermos with coffee. It’s time to get ready.