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Statistics · City
Average annual temperature in Cardiff
1965 – 2025 · 60 data points
Updated 21 Oct 2026
Source: NOAA National Centers for Environmental Information — GHCN-Daily, 1965 – 2025
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Latest value · 2025
11.7 °C
+0.3 °C
since 2024
First value · 1965
9.4 °C
since 2015
+0.7 °C
Average annual temperature, 1965 – 2025 °C
+0.7 °C since 2015
9 °C
10 °C
11 °C
12 °C
1965
1980
1990
2000
2010
2025
Source: NOAA National Centers for Environmental Information — GHCN-Daily, 1965 – 2025
The series at a glance Cardiff · 1965 – 2025
Latest value
11.7 °C · 2025
First value
9.4 °C · 1965
Highest
11.7 °C · 2023
Lowest
9.2 °C · 1986
Data points
60
By year
All years · 1965 – 2025
| Year | Cardiff | Change |
|---|---|---|
| 2025 | 11.7 °C | +0.3 °C |
| 2024 | 11.4 °C | −0.3 °C |
| 2023 | 11.7 °C | +0.2 °C |
| 2022 | 11.5 °C | +0.7 °C |
| 2021 | 10.8 °C | −0.7 °C |
| 2020 | 11.6 °C | +0.5 °C |
| 2019 | 11.0 °C | −0.3 °C |
| 2018 | 11.4 °C | +0.3 °C |
| 2017 | 11.1 °C | +0.4 °C |
| 2016 | 10.7 °C | −0.2 °C |
| 2015 | 10.9 °C | −0.5 °C |
| 2014 | 11.4 °C | +1.2 °C |
| 2012 | 10.2 °C | −1.0 °C |
| 2011 | 11.2 °C | +2.0 °C |
| 2010 | 9.2 °C | −1.1 °C |
| 2009 | 10.3 °C | −0.0 °C |
| 2008 | 10.4 °C | −0.6 °C |
| 2007 | 10.9 °C | −0.2 °C |
| 2006 | 11.2 °C | +0.6 °C |
| 2005 | 10.5 °C | −0.2 °C |
| 2004 | 10.7 °C | −0.1 °C |
| 2003 | 10.8 °C | −0.1 °C |
| 2002 | 10.9 °C | +0.7 °C |
| 2001 | 10.2 °C | −0.4 °C |
| 2000 | 10.6 °C | −0.2 °C |
| 1999 | 10.8 °C | +0.2 °C |
| 1998 | 10.6 °C | −0.2 °C |
| 1997 | 10.8 °C | +1.2 °C |
| 1996 | 9.6 °C | −1.3 °C |
| 1995 | 10.9 °C | −0.0 °C |
| 1994 | 10.9 °C | +0.8 °C |
| 1993 | 10.1 °C | −0.1 °C |
| 1992 | 10.2 °C | +0.5 °C |
| 1991 | 9.7 °C | −1.4 °C |
| 1990 | 11.1 °C | +0.0 °C |
| 1989 | 11.1 °C | +0.9 °C |
| 1988 | 10.2 °C | +0.6 °C |
| 1987 | 9.6 °C | +0.4 °C |
| 1986 | 9.2 °C | −0.1 °C |
| 1985 | 9.2 °C | −1.1 °C |
| 1984 | 10.3 °C | −0.3 °C |
| 1983 | 10.6 °C | +0.2 °C |
| 1982 | 10.4 °C | +0.6 °C |
| 1981 | 9.8 °C | +0.1 °C |
| 1980 | 9.7 °C | +0.5 °C |
| 1979 | 9.2 °C | −0.6 °C |
| 1978 | 9.8 °C | −0.2 °C |
| 1977 | 9.9 °C | −0.3 °C |
| 1976 | 10.2 °C | −0.2 °C |
| 1975 | 10.4 °C | +0.4 °C |
| 1974 | 10.0 °C | +0.2 °C |
| 1973 | 9.8 °C | +0.3 °C |
| 1972 | 9.5 °C | −0.5 °C |
| 1971 | 10.0 °C | +0.1 °C |
| 1970 | 10.0 °C | +0.2 °C |
| 1969 | 9.8 °C | +0.1 °C |
| 1968 | 9.7 °C | −0.3 °C |
| 1967 | 10.0 °C | −0.1 °C |
| 1966 | 10.1 °C | +0.7 °C |
| 1965 | 9.4 °C |
Source: NOAA National Centers for Environmental Information — GHCN-Daily, 1965 – 2025
What it means
The mean temperature over a whole year — the long-term trend shows warming or cooling.
How it is calculated
Mean of the daily average temperature over the year at the nearest weather station; years with incomplete months are left out.