HF Propagation on QRZCQ - The database for radio hams

Sun data and propagation

Current HF propagation

TODAYS SUN DATA AND HF PROPAGATION

Todays sun data		Latest EIT-304 image // Sun images from NASA
Flux index:	145
Spot number:	99
X-Ray index:	104.7
A index:	4
Kp index:	0.67

Conditions 00-10MHz:	Good
Conditions 10-20MHz:	Excellent
Conditions 20-30MHz:	Excellent
We are working on the algorithm, conditions shown here may not correlate with real conditions. The best check is always to power up your HF rig and listen on every band to be sure!

GRAPHICAL SUN DATA HISTORY

PROPAGATION BASED ON WSPRNET* (ALPHA)

Probability of QSO on 13cm between EU and EU is 76%
Probability of QSO on 23cm between AS and AS is 100%
Probability of QSO on 70cm between AS and AS is 84%
Probability of QSO on 2m between NA and NA is 100%
Probability of QSO on 2m between OC and OC is 0%
Probability of QSO on 6m between EU and EU is 15%
Probability of QSO on 6m between NA and NA is 28%
Probability of QSO on 10m between NA and EU is 22%
Probability of QSO on 10m between AS and AF is 79%
Probability of QSO on 10m between EU and SA is 13%
Probability of QSO on 10m between AF and EU is 50%
Probability of QSO on 10m between AF and SA is 9%
Probability of QSO on 12m between EU and SA is 10%
Probability of QSO on 12m between NA and EU is 1%
Probability of QSO on 12m between OC and NA is 7%
Probability of QSO on 15m between EU and SA is 3%
Probability of QSO on 15m between SA and NA is 6%
Probability of QSO on 15m between NA and EU is 7%
Probability of QSO on 15m between OC and NA is 13%
Probability of QSO on 15m between OC and EU is 8%
Probability of QSO on 17m between EU and SA is 5%
Probability of QSO on 17m between NA and OC is 11%
Probability of QSO on 17m between SA and NA is 6%
Probability of QSO on 17m between OC and NA is 9%
Probability of QSO on 17m between OC and EU is 6%
Probability of QSO on 17m between EU and NA is 3%
Probability of QSO on 17m between EU and AF is 38%
Probability of QSO on 20m between EU and OC is 17%
Probability of QSO on 20m between SA and NA is 28%
Probability of QSO on 20m between AS and SA is 20%
Probability of QSO on 20m between AS and AF is 51%
Probability of QSO on 20m between AS and EU is 2%
Probability of QSO on 20m between OC and NA is 17%
Probability of QSO on 20m between OC and EU is 8%
Probability of QSO on 20m between EU and NA is 22%
Probability of QSO on 20m between AF and OC is 7%
Probability of QSO on 30m between NA and OC is 10%
Probability of QSO on 30m between OC and NA is 41%
Probability of QSO on 30m between OC and EU is 0%
Probability of QSO on 40m between AF and EU is 100%
Probability of QSO on 40m between NA and EU is 6%
Probability of QSO on 40m between OC and NA is 52%
Probability of QSO on 80m between EU and AS is 8%
Probability of QSO on 80m between OC and NA is 3%
Probability of QSO on 80m between EU and NA is 66%
Probability of QSO on 160m between SA and EU is 100%

* Propagation probability based on data from WSPRnet (Weak Signal Propagation Reporter Network) Spot Database

PROPAGATION BASED ON DX-CLUSTER

Conditions at 00-10MHz (31%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	1%	0%	0%	0%	1%	0%
AS	0%	2%	1%	0%	0%	0%
EU	1%	2%	86%	2%	1%	1%
NA	0%	2%	1%	1%	1%	0%
OC	0%	0%	0%	0%	1%	0%
SA	0%	0%	0%	0%	0%	0%

Conditions at 10-20MHz (37%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	1%	0%	0%	0%	0%	0%
AS	1%	2%	1%	1%	0%	0%
EU	2%	2%	64%	5%	2%	1%
NA	1%	1%	6%	11%	1%	0%
OC	0%	0%	1%	0%	4%	0%
SA	0%	0%	1%	0%	1%	0%

Conditions at 20-30MHz (29%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	3%	0%	1%	0%	0%	0%
AS	0%	0%	0%	0%	0%	0%
EU	3%	0%	21%	16%	1%	8%
NA	6%	1%	21%	12%	0%	3%
OC	1%	0%	1%	0%	1%	0%
SA	1%	0%	4%	2%	0%	3%

Conditions at 50-54MHz (5%) based on DX-Cluster
Spots de	dx AF	dx AS	dx EU	dx NA	dx OC	dx SA
AF	0%	0%	0%	0%	0%	0%
AS	0%	0%	0%	0%	0%	0%
EU	0%	0%	0%	0%	0%	0%
NA	0%	0%	0%	98%	0%	0%
OC	0%	0%	0%	0%	0%	0%
SA	0%	0%	0%	0%	0%	0%

HISTORICAL PROPAGATION DATA

Last 30 days of HF propagation

Date and Time	Flux idx.	Spot num.	X-Ray idx.	X-Ray num	A-Index	K-Index	00-10MHz	10-20MHz	20-30MHz
2026-01-07 12:00:00	145	99	104.7	0	4	0.33	Good	Excellent	Excellent
2026-01-07 00:00:00	154	91	104.7	0	4	0.67	Good	Excellent	Excellent
2026-01-06 12:00:00	154	91	104.7	0	14	1.00	Normal	Excellent	Excellent
2026-01-06 00:00:00	157	97	104.7	0	14	2.00	Fair	Good	Good
2026-01-05 12:00:00	157	97	104.7	0	6	2.67	Normal	Excellent	Excellent
2026-01-05 00:00:00	165	136	104.7	0	6	3.33	Normal	Excellent	Excellent
2026-01-04 12:00:00	165	136	104.7	0	12	0.67	Good	Excellent	Excellent
2026-01-04 00:00:00	166	124	104.7	0	12	1.33	Normal	Excellent	Excellent
2026-01-03 12:00:00	166	124	104.7	0	24	2.00	Fair	Good	Good
2026-01-03 00:00:00	169	120	104.7	0	24	4.67	Fair	Normal	Normal
2026-01-02 12:00:00	169	120	104.7	0	12	2.33	Normal	Excellent	Excellent
2026-01-02 00:00:00	171	127	104.7	0	12	2.67	Normal	Excellent	Excellent
2026-01-01 12:00:00	171	127	104.7	0	7	2.67	Normal	Excellent	Excellent
2026-01-01 00:00:00	182	141	104.7	0	7	1.33	Good	Excellent	Excellent
2025-12-31 12:00:00	182	141	104.7	0	8	1.67	Good	Excellent	Excellent
2025-12-31 00:00:00				0			Excellent	Excellent	Excellent
2025-12-30 12:00:00	196	138	104.7	0	9	1.67	Good	Excellent	Excellent
2025-12-30 00:00:00	188	143	104.7	0	9	1.67	Good	Excellent	Excellent
2025-12-29 12:00:00	188	143	104.7	0	9	2.67	Good	Excellent	Excellent
2025-12-29 00:00:00	178	130	104.7	0	9	2.33	Normal	Excellent	Excellent
2025-12-28 12:00:00	178	130	104.7	0	7	2.33	Normal	Excellent	Excellent
2025-12-28 00:00:00	166	131	104.7	0	7	1.67	Normal	Excellent	Excellent
2025-12-27 12:00:00	166	131	104.7	0	8	1.67	Normal	Excellent	Excellent
2025-12-27 00:00:00	163	113	104.7	0	8	1.00	Good	Excellent	Excellent
2025-12-26 12:00:00				0			Normal	Excellent	Excellent
2025-12-26 00:00:00	134	103	104.7	0	11	1.67	Normal	Excellent	Excellent
2025-12-25 12:00:00	134	103	104.7	0	21	2.33	Fair	Good	Good
2025-12-25 00:00:00	142	106	104.7	0	21	3.00	Fair	Good	Good
2025-12-24 12:00:00	142	106	104.7	0	21	2.67	Fair	Good	Good
2025-12-24 00:00:00	133	80	104.7	0	21	4.00	Fair	Fair	Fair
2025-12-23 12:00:00	133	80	104.7	0	25	3.00	Normal	Normal	Normal
2025-12-23 00:00:00	124	85	104.7	0	25	4.00	Fair	Normal	Normal
2025-12-22 12:00:00	124	85	104.7	0	26	3.00	Fair	Good	Good
2025-12-22 00:00:00	120	74	104.7	0	26	5.00	Closed	Closed	Closed
2025-12-21 12:00:00	120	74	104.7	0	6	3.67	Fair	Poor	Closed
2025-12-21 00:00:00				0			Fair	Poor	Closed
2025-12-20 12:00:00				0			Fair	Poor	Closed
2025-12-20 00:00:00	116	87	104.7	0	6	2.00	Poor	Fair	Fair
2025-12-19 12:00:00	116	87	104.7	0	17	1.00	Poor	Fair	Fair
2025-12-19 00:00:00	119	68	104.7	0	17	2.67	Poor	Closed	Closed
2025-12-18 12:00:00	119	68	104.7	0	18	3.33	Poor	Closed	Closed
2025-12-18 00:00:00	117	81	104.7	0	18	4.67	Closed	Closed	Closed
2025-12-17 12:00:00	117	81	104.7	0	12	2.33	Poor	Fair	Fair
2025-12-17 00:00:00	118	73	104.7	0	12	2.33	Fair	Poor	Closed
2025-12-16 12:00:00	118	73	104.7	0	6	2.00	Fair	Poor	Closed
2025-12-16 00:00:00	119	78	104.7	0	6	1.00	Fair	Fair	Fair
2025-12-15 12:00:00	119	78	104.7	0	7	1.33	Fair	Poor	Closed
2025-12-15 00:00:00	122	76	104.7	0	8	1.67	Good	Good	Good
2025-12-14 12:00:00	122	76	104.7	0	14	2.00	Normal	Normal	Normal
2025-12-14 00:00:00	135	124	104.7	0	14	2.67	Fair	Good	Good
2025-12-13 12:00:00	135	124	104.7	0	28	2.33	Fair	Good	Good
2025-12-13 00:00:00	146	123	104.7	0	28	5.00	Fair	Normal	Normal
2025-12-12 12:00:00	146	123	104.7	0	26	3.67	Fair	Good	Good
2025-12-12 00:00:00	168	134	104.7	0	26	3.00	Fair	Good	Good
2025-12-11 12:00:00	168	134	104.7	0	21	2.00	Fair	Good	Good
2025-12-11 00:00:00	183	134	104.7	0	21	6.33	Fair	Normal	Normal
2025-12-10 12:00:00	183	134	104.7	0	5	2.00	Good	Excellent	Excellent
2025-12-10 00:00:00	186	146	104.7	0	5	1.33	Good	Excellent	Excellent
2025-12-09 12:00:00	186	146	104.7	0	2	1.00	Excellent	Excellent	Excellent
2025-12-09 00:00:00	194	133	104.7	0	2	0.67	Excellent	Excellent	Excellent