Water temperature in Cardiff
50.8
°F
April 9, 02:28
Trend:
increasingYesterday:
50.7°FTomorrow:
51.0°F
Sunrise:
Sunset:
Day Length:
13 h. 28 min.Cardiff in April
Minimum:
44.3°FAverage:
46.2°FMaximum:
48.4°FSea water temperature in Cardiff today
As of now, in Cardiff, the water temperature is 50.8°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 2.2°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. 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 50.3°F on 2025, while the historical minimum was 44.7°F on 2018.
Daily water temperature in Cardiff
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Mar 26 | 48.8°F | 47.6°F | 47.0°F |
| Mar 27 | 49.0°F | 48.3°F | 47.1°F |
| Mar 28 | 48.4°F | 48.2°F | 47.0°F |
| Mar 29 | 48.8°F | 48.1°F | 47.0°F |
| Mar 30 | 48.7°F | 48.5°F | 47.2°F |
| Mar 31 | 49.0°F | 48.7°F | 47.3°F |
| Apr 1 | 49.6°F | 49.5°F | 47.7°F |
| Apr 2 | 49.5°F | 49.5°F | 47.8°F |
| Apr 3 | 48.8°F | 49.7°F | 47.9°F |
| Apr 4 | 48.3°F | 49.6°F | 47.9°F |
| Apr 5 | 49.5°F | 49.9°F | 48.2°F |
| Apr 6 | 49.6°F | 50.6°F | 48.3°F |
| Apr 7 | 50.7°F | 50.8°F | 48.7°F |
| Apr 8 | 50.7°F | 50.4°F | 48.5°F |
| Apr 9 | 50.8°F | 50.3°F | 48.6°F |
| Apr 10 | 51.0°F | 50.5°F | 48.7°F |
| Apr 11 | 50.9°F | 50.3°F | 48.7°F |
| Apr 12 | 51.1°F | 51.2°F | 48.8°F |
| Apr 13 | 51.3°F | 51.2°F | 49.0°F |
| Apr 14 | 51.4°F | 51.3°F | 49.2°F |
| Apr 15 | 51.7°F | 51.0°F | 49.4°F |
| Apr 16 | 51.7°F | 50.7°F | 49.5°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.
