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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
23 DEC-24 DEC ACTIVE STORM G1
24 DEC-25 DEC ACTIVE ACTIVE
25 DEC-26 DEC 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)
22 DEC-23 DEC ACTIVE STORM G1 12:00-15:00 ACTIVE STORM G1 12:00-15:00

Additional Comments

The Earth remains under the influence of a high-speed solar wind stream from a large coronal hole. Initially ACTIVE to STORM G1 periods are possible with a gradually waning influence leading to QUIET to ACTIVE conditions over the remaining forecast periods.
Time of forecast: 23 Dec 2025
© UKRI