Is RSI below 30 a buy signal?

RSI below 30 is a potential buy signal indicating oversold conditions, but it is not a standalone trigger.
Low RSI levels, typically below 30, indicate oversold conditions, generating a potential buy signal.

The proper entry comes when RSI crosses back above 30, ideally near support and confirmed by another tool. However, in strong downtrends, RSI can stay below 30 for extended periods, so it is best to use additional confirmation from other indicators like MACD. Blindly buying every oversold print leads to repeated losses in falling markets.