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Guide

Northern Lights in March: Best Places to See the Aurora

Aurora needs a dark sky, enough geomagnetic activity and clear weather. Pick a city to see the first two, month by month.

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Best in March: 19 of 23 Places

The places at their best in March come first. Every figure is history, not a forecast.

All Northern Lights Cities

Every figure here counts geomagnetic activity and darkness only. It does not count clouds. Clear, dark skies are needed to see aurora.

How to Read This Page

Three things have to line up to see the northern lights: darkness, enough geomagnetic activity for the latitude, and a clear sky.

Dark hours are the hours each night with the sun more than 12 degrees below the horizon, read on the 15th of the month.

Activity is the Kp index, a 0 to 9 scale of geomagnetic activity measured every 3 hours. Each place needs a certain Kp for a faint glow to the north and a higher Kp for a display overhead. The counts show how often dark nights reached that level from 1991 to 2025.

The best months are the three months when the largest share of dark nights reached the level. They often fall around the equinoxes, in March and in September and October, rather than in midwinter: geomagnetic storms are more common then, because the tilt of the Earth's magnetic field around the equinoxes makes it easier for the Sun's magnetic field, carried by the solar wind, to connect with it.

The activity counts do not include clouds, and history is not a forecast. Check the live maps on the night, before you head out.

Source for the equinox effect: Russell and McPherron (1973), Semiannual Variation of Geomagnetic Activity, Journal of Geophysical Research.

The Solar Cycle

In October 2024 NASA and NOAA announced that the Sun had reached the maximum period of Solar Cycle 25, which they said could last about a year. Source: NASA

Dark hours: time with the sun more than 12 degrees below the horizon on the night of the 15th. Kp needed: from the place's corrected geomagnetic latitude (AACGM-v2) and NOAA's average position of the auroral oval; the horizon figure adds our own allowance of about 3 degrees. Nights: definitive Kp, 1991 to 2025, counting only nights with darkness.

Kp index data: Geomagnetic Observatory Niemegk, GFZ Helmholtz Centre for Geosciences, CC BY 4.0. Matzka, J., Stolle, C., Yamazaki, Y., Bronkalla, O. and Morschhauser, A., 2021. The geomagnetic Kp index and derived indices of geomagnetic activity. Space Weather, https://doi.org/10.1029/2020SW002641 CC BY 4.0

The month figures are history, not a forecast.