12-month Euribor – August 2023
The average 12-month Euribor for August 2023 is 4.073 %, computed from 23 daily fixings (complete). The month opened at 4.076 %, closed at 4.102 %, with a low of 4.045 % and a high of 4.116 %. Versus July 2023 the average is down -0.076 pp.
Most variable mortgages in the euro area are revised on the monthly average, not the daily value. A loan that resets in August on the 12-month Euribor plus 1 pp would pay 5.07 % for the coming period.
Every number on this page is a published fixing, not an estimate: daily values come from the Bank of Finland's copy of the Euribor series, monthly averages are the arithmetic mean of those fixings and are cross-checked against the ECB Data Portal, and the tables are rebuilt each 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.
August 2023
Source: Bank of Finland. Published with a 24-hour delay.
Date
| Date | Rate | Change |
|---|---|---|
| 4.102 % | +0.037 pp | |
| 4.065 % | -0.009 pp | |
| 4.074 % | +0.004 pp | |
| 4.070 % | +0.025 pp | |
| 4.045 % | -0.003 pp | |
| 4.048 % | -0.034 pp | |
| 4.082 % | -0.024 pp | |
| 4.106 % | +0.024 pp | |
| 4.082 % | -0.009 pp | |
| 4.091 % | -0.004 pp | |
| 4.095 % | -0.021 pp | |
| 4.116 % | +0.025 pp | |
| 4.091 % | +0.015 pp | |
| 4.076 % | +0.020 pp | |
| 4.056 % | +0.004 pp | |
| 4.052 % | -0.001 pp | |
| 4.053 % | -0.012 pp | |
| 4.065 % | +0.010 pp | |
| 4.055 % | +0.010 pp | |
| 4.045 % | -0.007 pp | |
| 4.052 % | -0.029 pp | |
| 4.081 % | +0.005 pp | |
| 4.076 % | – |
Source: Bank of Finland. Published with a 24-hour delay.
Frequently asked questions
What is the 12-month Euribor average for August 2023?
4.073 %, computed from 23 daily fixings. The ECB's official monthly average is 4.073 %.
My mortgage revises with the August average – what rate applies?
Reference 4.073 % plus your contractual spread; with a 1 pp spread the new rate is 5.07 %. Check whether your contract uses the previous month or the month before that.
Source: Bank of Finland (daily fixings), ECB Data Portal (monthly averages). Published with a 24-hour delay. 07/09/2026