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Solar flares — May 16, 2026

May 16, 2026

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Solar flares on May 16, 2026

The most powerful solar flare in 24 hours

M1.9 (strong) flare - May 16 at 3:12 PM

Solar activity index

Value as of the end of the day on May 16, 2026

Solar activity index

Solar X-ray emission over the past 2 days

Chart of solar X-ray emission (1-8 Å) from May 15, 2026 to May 16, 2026

Time zone — UTC-02:30 (Saint john's) — summer time

Solar flares
PNG API: JSON | TXT

List of solar flares for May 16, 2026

The total number of solar flares of class C and higher — 9 flares

C class — 6 | M class — 3 | X class — 0

Class begin max end region
C5.8 20:43 21:00 21:08 4435
C1.4 19:52 19:56 20:00 4439
C3.5 17:27 17:33 17:39 4435
C2.5 16:32 16:37 16:41 4435
M1.9 15:09 15:12 15:14 4435
M1.3 13:52 13:59 14:04 4436
M1.9 13:20 13:42 13:52 4436
C3.4 12:38 12:42 12:46 4435
C1.1 11:49 12:09 12:26 4436