The Sunspot Observer - Average annual indices of solar activity - Solar activity in 2025 - December, 2025

Statistics of sunspot activity

December, 2025

Visual indices of solar activity by author's observations

Date	01	02	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31	Average	%
W								156	183							67				48				108	123							114.17	100
Wn								64	61							29				36				70	70							55.00	48.18
Ws								92	122							38				12				38	53							59.17	51.82
n								8	10							5				4				6	8							6.83	100
A								1	2							0				1				1	1							1.00	14.63
B								1	2							2				2				1	1							1.50	21.95
C								3	3							1				0				1	1							1.50	21.95
D								1	1							1				0				1	2							1.00	14.63
E								2	2							0				0				1	1							1.00	14.63
F								0	0							0				0				0	0							0.00	0.00
G								0	0							0				0				0	0							0.00	0.00
H								0	0							0				0				0	0							0.00	0.00
I								0	0							1				1				1	2							0.83	12.20
x								2	4							2				3				2	2							2.50	36.59
r								1	1							1				0				1	2							1.00	14.63
s								1	1							0				1				2	1							1.00	14.63
a								2	2							2				0				0	1							1.17	17.07
h								0	0							0				0				0	0							0.00	0.00
k								2	2							0				0				1	2							1.17	17.07
x								1	2							1				2				2	3							1.83	26.83
o								4	5							4				2				3	3							3.50	51.22
i								2	2							0				0				1	2							1.17	17.07
c								1	1							0				0				0	0							0.33	4.88
CV								152	155							35				15				84	131							95.33	100
CVn								30	32							7				14				60	65							34.67	36.36
CVs								122	123							28				1				24	66							60.67	63.63
gr								8	8							4				3				6	6							5.83	85.37
grfp								36	43							6				0				15	19							19.83	44.23
grf								40	38							10				7				33	22							25.00	55.77
efp								0	0							1				1				0	1							0.50	7.32
ef								0	2							0				0				0	1							0.50	7.32
Cond								4	3							5				4				3	2							3.50	30.00