All data are in degrees Fahrenheit

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Water temperature in Cardiff

Detailed information about the current water temperature in Cardiff. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Cardiff now

64.5

°F

June 22, 15:52

Trend:

stable

Yesterday:

65.6°F

Tomorrow:

64.8°F

Sunrise:

04:56

Sunset:

21:34

Day Length:

16 h. 38 min.

Cardiff in June

Minimum:

44.5°F

Average:

45.7°F

Maximum:

47.3°F

Sea water temperature in Cardiff today

As of now, in Cardiff, the water temperature is 64.5°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 2.1°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 65.2°F on 2023, while the historical minimum was 59.5°F on 2019.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 65.2°F, with minimum temperature starting at 64.8°F, while the maximum might reach 65.7°F.

Daily water temperature in Cardiff

Date Current Year

actual* / forecast**

last year 10 years average
Jun 8 60.1°F 60.2°F 59.9°F
Jun 9 60.3°F 60.3°F 60.0°F
Jun 10 60.4°F 60.6°F 60.1°F
Jun 11 60.8°F 60.2°F 60.4°F
Jun 12 61.2°F 60.1°F 60.5°F
Jun 13 61.8°F 60.1°F 60.7°F
Jun 14 62.0°F 59.8°F 60.9°F
Jun 15 61.8°F 59.5°F 61.1°F
Jun 16 62.6°F 60.0°F 61.3°F
Jun 17 61.9°F 60.0°F 61.3°F
Jun 18 62.7°F 59.9°F 61.6°F
Jun 19 63.3°F 60.2°F 61.9°F
Jun 20 63.2°F 61.0°F 62.2°F
Jun 21 65.6°F 61.5°F 62.4°F
Jun 22 64.5°F 61.4°F 62.3°F
Jun 23 64.8°F 61.9°F 62.6°F
Jun 24 64.8°F 61.7°F 62.6°F
Jun 25 65.0°F 62.5°F 62.8°F
Jun 26 65.3°F 63.1°F 63.2°F
Jun 27 65.5°F 63.0°F 63.3°F
Jun 28 65.7°F 63.6°F 63.6°F
Jun 29 65.6°F 63.3°F 63.4°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.

Sea water temperature in Cardiff by month

In an average year, Cardiff offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Cardiff was recorded on August 15, 2022, reaching a 70.0°F. While the coldest temperature occurred on March 4, 2018, dipping to 39.0°F. The average readings by season are 45.7°F in Winter, 50.0°F in Spring, 64.1°F in Summer, and 58.3°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Barry 63.5°F 7mi
Newport 65.1°F 11mi
Bristol 66.3°F 25mi
Swansea 62.9°F 34mi

* current water temperature in this city

** straight line distance from Cardiff