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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
2 JUN-3 JUN QUIET ACTIVE
3 JUN-4 JUN QUIET STORM G1
4 JUN-5 JUN 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)
1 JUN-2 JUN QUIET QUIET 15:00-21:00 QUIET QUIET 15:00-21:00

Additional Comments

Solar wind speeds are at near background levels leading to overall QUIET geomagnetic conditions which is expected to continue through the first forecast period. A high speed stream from a trans-equatorial coronal hole is anticipated to arrive during the second period. CIR effects from this are likely to elevate geomagnetic activity with STORM G1 levels possible.
As coronal hole influence wanes during the third period nominal levels should return.
Time of forecast: 02 Jun 2026
© UKRI