Kp-index

Kp-index forecast
Min. Max.
SaturdayKp1Kp4
SundayKp2-Kp4
MondayKp2Kp3

Real Time Solar Wind

With the current speed, it will take the solar wind 60 minutes to propagate from ACE to Earth.
Solar wind
Speed: km/sec
Density: p/cm3
Interplanetary Magnetic Field
Bt: nT
Bz: nT

Sunspot regions

Solar Dynamics Observatory HMI Continuum
Sunspot regions
RegionNumber of
sunspots
Class
Magn.
Class
Spot
44431AXX
44441HSX
44467CHO
44471HSX
44494CSO
44529DAI
44541HRX
44558CKO
44563BXO
Today's Sun
Sunspot number 135 -26
New regions0
10.7cm Solar Radio Flux148 3
Carrington Rotation2311

Solar flares

SDO AIA 131
Solar activity past two hours
Current value
2h max
24h max
More data Help
Flare probability
C-class solar flare 95%
M-class solar flare 40%
X-class solar flare 5%

Latest news

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Space weather facts

Last X-flare2026/04/24X2.5
Last M-flare2026/05/29M1.1
Last geomagnetic storm2026/05/16Kp6- (G2)
Spotless days
Last 365 days3 days
20263 days (2%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
April 202679.3 -6.6
May 202697.9 +18.6
Last 30 days97.9 +5

This day in history*

Solar flares
12025M3.47
22002M2.31
32002M1.98
42025M1.66
52023M1.4
DstG
12003-135G3
22005-113G4
31967-66G2
41958-59
51978-58G1
*since 1994

Aurora on this day in history

No observations submitted for this day in history. If you've observed the aurora and you have some amazing photos to show off, submit your observations now!
Submit your aurora observation

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