September is a red month with a large portion of Bitcoin (BTC) prices and, as a result, it is also another digital asset.
In the following graph provided by the Coinglass platform, BTC Monthly Returns since 2013. There we see that there are eight red septiembres (i.e., they have negative returns) and a fourth green (with positive returns).
These statistical issues create fear in the Bitcoin and cryptocurrency investor community.
One of the most prominent reasons for this behavior is Seasonal effects: After the North Korean summer, financial markets generally show weakness, with investors facing year-end expenses and tax obligations, adjusting their portfolios, taking profits, and selling risk assets.
Plus there is a Psychological bias: Many traders predict weakness, act accordingly, and strengthen their patterns. This has the least typical summer fluidity, which amplifies volatility and falls.
They also influence Macroeconomic factors. September is usually a key month for central bank decisions, particularly the US Federal Reserve decisions, and its meetings create uncertainty in the market. Given the expectations of fees or restrictive policy, investors tend to reduce their exposure to encryption. While there is no guarantee that September will always be negative, the combination of seasonality, financial adjustments and macro tension has historically become difficult for Bitcoin this month.
However, in 2025, things may be different. It’s – as he mentioned as encryption – On September 17th, there will be an ad for the US Federal (FED) reserves on interest rates. The expectations of the majority mean that the bodies carried out by Jerome Powell will lower the rate. This means liquidity injections in financial markets.
If this happens, September 2025 is very likely to be a bullish month And it’s a positive prelude to the fourth quarter, and much more bullish (probably Bitcoin has reached a new historic maximum).
It is worth saying that it is impossible to predict the future with complete certainty. But that’s for sure September 2025 will be the month of high volatility for Bitcoin and cryptocurrency.. So… to adjust the belt and enjoy your trip!
