Water temperature in Cardiff
67.3
°F
July 5, 11:59
Trend:
increasingYesterday:
65.7°FTomorrow:
67.5°F
Sunrise:
Sunset:
Day Length:
16 h. 28 min.Cardiff in July
Minimum:
43.0°FAverage:
45.3°FMaximum:
46.9°FSea water temperature in Cardiff today
As of now, in Cardiff, the water temperature is 67.3°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 3.3°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.Recent sea temperature and forecast
Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 67.1°F on 2025, while the historical minimum was 62.3°F on 2019.
Daily water temperature in Cardiff
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Jun 21 | 62.6°F | 65.6°F | 62.7°F |
| Jun 22 | 64.1°F | 64.5°F | 62.9°F |
| Jun 23 | 65.7°F | 64.8°F | 63.2°F |
| Jun 24 | 66.6°F | 64.5°F | 63.3°F |
| Jun 25 | 67.5°F | 63.5°F | 63.5°F |
| Jun 26 | 68.1°F | 64.4°F | 63.9°F |
| Jun 27 | 67.1°F | 65.0°F | 63.9°F |
| Jun 28 | 67.3°F | 65.5°F | 64.2°F |
| Jun 29 | 66.8°F | 65.9°F | 64.0°F |
| Jun 30 | 66.7°F | 64.7°F | 63.9°F |
| Jul 1 | 66.4°F | 65.1°F | 63.8°F |
| Jul 2 | 65.9°F | 65.0°F | 63.8°F |
| Jul 3 | 67.3°F | 66.4°F | 64.1°F |
| Jul 4 | 65.7°F | 66.5°F | 64.2°F |
| Jul 5 | 67.3°F | 67.1°F | 64.0°F |
| Jul 6 | 67.5°F | 66.7°F | 64.2°F |
| Jul 7 | 67.8°F | 67.0°F | 64.4°F |
| Jul 8 | 67.7°F | 66.6°F | 64.4°F |
| Jul 9 | 67.9°F | 66.4°F | 64.6°F |
| Jul 10 | 68.2°F | 67.3°F | 64.9°F |
| Jul 11 | 68.3°F | 67.0°F | 65.0°F |
| Jul 12 | 68.5°F | 67.9°F | 65.1°F |
* actual - actual temperature values
** forecast - projected values for the next week
Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.
Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.
