Live · Updated every 15 min

Solar Conditions

Real-time solar flux, geomagnetic indices, and band propagation — built for amateur radio operators.

Live Conditions

Current solar data

Solar flux index, geomagnetic conditions, and X-ray flux — refreshed every 15 minutes from NOAA SWPC.

Solar Flux (SFI)

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10.7 cm radio flux

A-Index

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Geomagnetic Ap (3-hr)

K-Index

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Planetary Kp (real-time)

X-Ray Class

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GOES satellite

24-Hour History

Solar trend

Solar Flux Index (SFI)

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K-Index (Kp)

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Trend Analysis

Historical solar data

Long-term trends in solar flux, geomagnetic activity, and sunspot cycle — updated every 15 minutes from NOAA SWPC.

Solar Flux Index (SFI)

Planetary K-Index — 7 days + forecast

Sunspot Number (SSN)

Ham Radio Impact

What the numbers mean for your radio

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HF Propagation

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Geomagnetic Activity

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Solar Events

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Education

Why does any of this matter?

Solar activity directly shapes the ionosphere — and the ionosphere controls which amateur radio bands are open and how far your contacts can reach. Once you understand the connection, you'll know exactly when to call CQ.

Learn about propagation → TavaOne Education ↗