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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
4 SEP-5 SEP QUIET QUIET
5 SEP-6 SEP QUIET QUIET
6 SEP-7 SEP QUIET ACTIVE

For more information about the forecast and activity categories see
geomag.bgs.ac.uk/education/activitylevels.html

Activity during last 24 hours

Global   Local (UK)
Date Average Max At time (UTC) Average Max At time (UTC)
3 SEP-4 SEP QUIET QUIET 18:00-21:00 QUIET QUIET 18:00-21:00

Additional Comments

Solar wind speed remains slightly elevated above background levels. The high speed stream from a small coronal hole is expected to become geoeffective later on day three. A weak CME from the 2nd September could also arrive around this time, although any influence from this is likely to be minimal.
Geomagnetic activity should remain QUIET for the next couple of days before the high speed stream arrives, which could produce some ACTIVE periods going into next week, although we can't rule out a very small chance that it could peak briefly at STORM G1.
Time of forecast: 04 Sep 2026
© UKRI