12-month Euribor – May 2023
The average 12-month Euribor for May 2023 is 3.862 %, computed from 22 daily fixings (complete). The month opened at 3.822 %, closed at 3.939 %, with a low of 3.770 % and a high of 3.982 %. Versus April 2023 the average is up +0.106 pp.
Most variable mortgages in the euro area are revised on the monthly average, not the daily value. A loan that resets in May on the 12-month Euribor plus 1 pp would pay 4.86 % 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.
May 2023
Source: official ECB / Eurosystem data. Published with a 24-hour delay.
Date
| Date | Rate | Change |
|---|---|---|
| 3.939 % | -0.026 pp | |
| 3.965 % | -0.017 pp | |
| 3.982 % | +0.027 pp | |
| 3.955 % | +0.012 pp | |
| 3.943 % | +0.011 pp | |
| 3.932 % | +0.028 pp | |
| 3.904 % | +0.011 pp | |
| 3.893 % | +0.015 pp | |
| 3.878 % | +0.020 pp | |
| 3.858 % | +0.024 pp | |
| 3.834 % | +0.027 pp | |
| 3.807 % | +0.002 pp | |
| 3.805 % | +0.006 pp | |
| 3.799 % | +0.004 pp | |
| 3.795 % | -0.013 pp | |
| 3.808 % | +0.004 pp | |
| 3.804 % | +0.014 pp | |
| 3.790 % | +0.020 pp | |
| 3.770 % | -0.073 pp | |
| 3.843 % | 0.000 pp | |
| 3.843 % | +0.021 pp | |
| 3.822 % | – |
Source: official ECB / Eurosystem data. Published with a 24-hour delay.
Frequently asked questions
What is the 12-month Euribor average for May 2023?
3.862 %, computed from 22 daily fixings. The ECB's official monthly average is 3.862 %.
My mortgage revises with the May average – what rate applies?
Reference 3.862 % plus your contractual spread; with a 1 pp spread the new rate is 4.86 %. 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