30-Year Treasury Yield in September 2025
The 30-year Treasury yield ended September 2025 at 4.732% on September 30, 2025, down 0.185 percentage points from 4.917% at the end of August 2025. Its highest close of the month was 4.971% on September 2, 2025, its lowest 4.646% on September 16, 2025.
Month close
4.732%
September 30, 2025
Month change
−0.185 pts
from 4.917%
Highest close
4.971%
September 2, 2025
Lowest close
4.646%
September 16, 2025
Every close of September 2025
21 sessions, newest first.
| Date | Close | Change |
|---|---|---|
| 4.732% | +0.028 pts | |
| 4.704% | −0.062 pts | |
| 4.766% | +0.014 pts | |
| 4.752% | −0.006 pts | |
| 4.758% | +0.020 pts | |
| 4.738% | −0.023 pts | |
| 4.761% | +0.005 pts | |
| 4.756% | +0.036 pts | |
| 4.720% | +0.045 pts | |
| 4.675% | +0.029 pts | |
| 4.646% | −0.010 pts | |
| 4.656% | −0.023 pts | |
| 4.679% | +0.028 pts | |
| 4.651% | −0.027 pts | |
| 4.678% | −0.040 pts | |
| 4.718% | +0.029 pts | |
| 4.689% | −0.086 pts | |
| 4.775% | −0.099 pts | |
| 4.874% | −0.018 pts | |
| 4.892% | −0.079 pts | |
| 4.971% | +0.054 pts |
30-Year Treasury Yield, month by month
| Month | Last close | Change |
|---|---|---|
| September 2026so far | 5.504% | +0.255 pts |
| August 2026 | 5.249% | −0.026 pts |
| July 2026 | 5.275% | +0.373 pts |
| June 2026 | 4.902% | −0.091 pts |
| May 2026 | 4.993% | +0.006 pts |
| April 2026 | 4.987% | +0.096 pts |
| March 2026 | 4.891% | +0.258 pts |
| February 2026 | 4.633% | −0.239 pts |
| January 2026 | 4.872% | +0.032 pts |
| December 2025 | 4.840% | +0.175 pts |
| November 2025 | 4.665% | −0.005 pts |
| October 2025 | 4.670% | −0.062 pts |
| September 2025 | 4.732% | −0.185 pts |
30-Year Treasury Yield in September 2025: what people ask
What was the 30-year Treasury yield at the end of September 2025?
It closed at 4.732% on Tuesday, September 30, 2025, down 0.185 percentage points from 4.917% at the end of August 2025.
What was the highest 30-year Treasury yield in September 2025?
Its highest close of September 2025 was 4.971% on Tuesday, September 2, 2025; its lowest was 4.646% on September 16, 2025, over 21 sessions.
Source: Cboe 30-year Treasury yield index (TYX), daily closes. Daily closes; a month's change runs from the previous month's last close. Not investment advice. 30-Year Treasury Yield today