Bitcoin in August: Every August Since 2015
Bitcoin has risen in 4 of 12 Augusts since 2015 (33%, against 56% for all months), with an average change of +1.9% and a median of −7.2%. Its best August was 2017 (+63.6%) and its worst 2015 (−19.2%). August ranks 8 of 12 by average change.
Bitcoin in every August, 2015–2026
% change in the monthWhat happens in September after August
How often September rose after bitcoin ended August higher or lower, compared with all months (56% rose).
After a higher August
InconclusiveAfter bitcoin ends August higher, September has risen 25% of the time since 2014 (1 of 4), against 56% for all months, with an average change of −4.1% and a median of −7.4%: too few cases to say.
After a lower August
InconclusiveAfter bitcoin ends August lower, September has risen 63% of the time since 2014 (5 of 8), against 56% for all months, with an average change of +0.3% and a median of +3.3%: too few cases to say.
"Momentum" or "rebound" only when the share differs from all months by at least 5 percentage points, with at least 20 cases, and by more than chance would explain (95% confidence); otherwise "inconclusive". With one month a year, most single-month differences are within chance. The same figures for every month together: bitcoin seasonality.
Bitcoin in August, Year by Year
Month-end close and the change in August, with September next to it.
| Year | Close, end of August | August | September after |
|---|---|---|---|
| 2026 | $78,549 | +25.1% | +6.4% |
| 2025 | $108,237 | −6.5% | +5.4% |
| 2024 | $58,970 | −8.7% | +7.4% |
| 2023 | $25,931 | −11.3% | +4.0% |
| 2022 | $20,050 | −14.1% | −3.1% |
| 2021 | $47,167 | +13.3% | −7.2% |
| 2020 | $11,681 | +3.2% | −7.7% |
| 2019 | $9,631 | −4.5% | −13.9% |
| 2018 | $7,038 | −9.5% | −5.9% |
| 2017 | $4,703 | +63.6% | −7.8% |
| 2016 | $575 | −7.9% | +6.0% |
| 2015 | $230 | −19.2% | +2.6% |
Bitcoin by Month
Bitcoin in August: FAQ
Is August a good month for bitcoin?
Bitcoin has risen in 33% of Augusts since 2015 (4 of 12), against 56% for all months, with an average change of +1.9%. August ranks 8 of 12 months by average change. In the last 10 years it rose 4 times. Seasonal patterns are not a reliable guide to any single year.
What was bitcoin's best August?
2017, when bitcoin rose 63.6%. The worst was 2015 (−19.2%).
What happens to bitcoin in September after a higher August?
After bitcoin ends August higher, September has risen 25% of the time since 2014 (1 of 4), against 56% for all months, with an average change of −4.1% and a median of −7.4%: too few cases to say.
What happens to bitcoin in September after a lower August?
After bitcoin ends August lower, September has risen 63% of the time since 2014 (5 of 8), against 56% for all months, with an average change of +0.3% and a median of +3.3%: too few cases to say.
History, not advice: past monthly patterns do not predict any single month. Data to 26 October 2026.
Cite this page
For essays, articles and research. Prices on this page update daily, so the citations include today's date as the date you accessed it.
@misc{corgano2026bitcoininaugustevery, author = {{Corgano}}, title = {Bitcoin in August: every August since 2015}, howpublished = {\url{https://bitcoinprice.corgano.com/bitcoin-in-august}}, year = {2026}, note = {Corgano Bitcoin Price, accessed 2026-10-27}}