6-month Euribor – September 2025
The average 6-month Euribor for September 2025 is 2.102 %, computed from 22 daily fixings (complete). The month opened at 2.086 %, closed at 2.096 %, with a low of 2.083 % and a high of 2.123 %. Versus August 2025 the average is up +0.018 pp.
Most variable mortgages in the euro area are revised on the monthly average, not the daily value. A loan that resets in September on the 6-month Euribor plus 1 pp would pay 3.10 % for the coming period.
Every number on this page is an official published fixing, not an estimate: daily values are the Euribor fixings as published in the ECB / Eurosystem's official statistics, monthly averages are the arithmetic mean of those fixings and are cross-checked against the ECB Data Portal, and the tables are refreshed every business day after the previous day's fixing appears. Tenors use the ACT/360 convention. Where a monthly average differs from the ECB figure by more than a hundredth of a point the methodology page lists the case.
What does it mean for a mortgage?
Annuity formula; assumes the rate applies for the whole remaining term. Your bank may round or use a different convention.
September 2025
Source: official ECB / Eurosystem data. Published with a 24-hour delay.
Date
| Date | Rate | Change |
|---|---|---|
| 2.096 % | -0.013 pp | |
| 2.109 % | -0.014 pp | |
| 2.123 % | +0.014 pp | |
| 2.109 % | +0.006 pp | |
| 2.103 % | +0.006 pp | |
| 2.097 % | -0.012 pp | |
| 2.109 % | +0.002 pp | |
| 2.107 % | +0.009 pp | |
| 2.098 % | +0.015 pp | |
| 2.083 % | -0.004 pp | |
| 2.087 % | -0.014 pp | |
| 2.101 % | -0.007 pp | |
| 2.108 % | -0.011 pp | |
| 2.119 % | +0.005 pp | |
| 2.114 % | +0.008 pp | |
| 2.106 % | +0.001 pp | |
| 2.105 % | +0.005 pp | |
| 2.100 % | -0.003 pp | |
| 2.103 % | +0.004 pp | |
| 2.099 % | +0.010 pp | |
| 2.089 % | +0.003 pp | |
| 2.086 % | – |
Source: official ECB / Eurosystem data. Published with a 24-hour delay.
Frequently asked questions
What is the 6-month Euribor average for September 2025?
2.102 %, computed from 22 daily fixings. The ECB's official monthly average is 2.102 %.
My mortgage revises with the September average – what rate applies?
Reference 2.102 % plus your contractual spread; with a 1 pp spread the new rate is 3.10 %. Check whether your contract uses the previous month or the month before that.
Source: official ECB / Eurosystem data. Published with a 24-hour delay. 07/09/2026