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Real-time auroral and solar activity

The aurora and solar activity archive

Searching for historical solar and auroral activity data? The archive is filled with data between the year 1996 and yesterday. You can choose a viewing mode to quickly look for days with interesting space weather and pick a day to view the archived data for that day with more detailed space weather data.

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July 2015

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1

C2.01
Kp2

2

C5.36
Kp1-

3

M2.23
Kp1-

4

C1.52
Kp5+

5

C1.31
Kp5+

6

M2.51
Kp4-

7

C3.94
Kp2

8

C1.4
Kp1+

9

C2.74
Kp2-

10

C1.67
Kp5-

11

C1.5
Kp5-

12

B9.53
Kp3

13

B8.59
Kp6-

14

C1.79
Kp3

15

Kp2+

16

B7.99
Kp3

17

B6.9
Kp1+

18

C2.57
Kp1+

19

C3.04
Kp1-

20

B8.84
Kp1+

21

B7.27
Kp2+

22

B3.05
Kp3

23

Kp5+

24

C3.8
Kp2

25

Kp3-

26

C1.66
Kp3-

27

B5.2
Kp3

28

B5.87
Kp3

29

Kp2-

30

B7.88
Kp4+

31

B8.15
Kp4-
  
       
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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 2026107.7 +21.8
Last 30 days100 +44.8

This day in history*

Solar flares
12013M9.34
22024M5.47
32001M3.41
42000M1.63
52000M1.5
DstG
12001-271G4
21990-190G3
31978-114G4
41982-110G2
51959-88G1
*since 1994

Aurora on this day in history

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