Top 25 sunspot regions of 2018

On this page you will find an overview of the largest sunspot regions of the year 2018. This page is updated daily. Sunspot information comes from the NOAA SWPC.

RegionSize Number of
sunspots
Class Magn. Class Spot
12018/02/11269924025DAI
22018/06/22271516013DAO
32018/04/23270613010DAO
42018/08/2627201007DAO
52018/05/2927128010CSI
62018/06/222713708DSO
72018/05/252711606CAI
82018/11/182727603CAO
92018/12/072729507CRO
102018/08/242719405CRO
112018/06/202714405CAO
122018/02/272700306CRO
132018/04/132704303BXO
142018/10/012723304DRO
152018/05/052708303CRO
162018/01/172696303CRO
172018/08/182718201HRX
182018/10/132724201HRX
192018/01/052693203CRO
202018/05/222710202CRO
212018/11/252728204BXO
222018/07/222716101AXX
232018/08/022717101AXX
242018/03/032701101DAI
252018/03/192702103BXO

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!

No Ads on SWL Pro!
No Ads on SWL Pro! Subscriptions
Donations
Support SpaceWeatherLive.com! Donate
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2026/04/24X2.5
Last M-flare2026/05/10M5.7
Last geomagnetic storm2026/05/05Kp5 (G1)
Spotless days
Last 365 days3 days
20263 days (2%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
April 202679.3 -6.6
May 2026103.1 +23.8
Last 30 days95.2 +0.9

This day in history*

Solar flares
12013X4.11
22013X2.51
32025X1.21
42005X1.15
52024M6.6
DstG
12024-102G2
21992-87G1
32015-82G2
41959-58
51958-58G2
*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

Social networks