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

59.5

°F

June 1, 07:01

Trend:

increasing

Yesterday:

59.3°F

Tomorrow:

59.5°F

Sunrise:

05:02

Sunset:

21:20

Day Length:

16 h. 18 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 59.5°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 0.9°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's reading indicates a minor change compared to the average water temperature of the last two weeks, but the overall trend remains steady. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 61.3°F on 2020, while the historical minimum was 56.5°F on 2021.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 60.2°F, with minimum temperature starting at 59.5°F, while the maximum might reach 60.7°F.

Daily water temperature in Cardiff

Date Current Year

actual* / forecast**

last year 10 years average
May 18 58.7°F 56.3°F 55.6°F
May 19 58.8°F 57.4°F 55.7°F
May 20 59.0°F 57.8°F 56.2°F
May 21 58.9°F 58.2°F 56.7°F
May 22 59.9°F 58.2°F 56.9°F
May 23 59.1°F 58.7°F 57.0°F
May 24 59.2°F 58.7°F 57.4°F
May 25 59.4°F 58.0°F 57.5°F
May 26 59.8°F 58.3°F 57.5°F
May 27 59.9°F 59.3°F 57.9°F
May 28 59.9°F 59.3°F 58.1°F
May 29 60.0°F 59.0°F 58.2°F
May 30 59.5°F 59.4°F 58.5°F
May 31 59.3°F 59.2°F 58.4°F
Jun 1 59.5°F 59.1°F 58.6°F
Jun 2 59.5°F 59.2°F 58.7°F
Jun 3 59.9°F 60.2°F 59.1°F
Jun 4 60.2°F 59.6°F 59.3°F
Jun 5 60.3°F 59.5°F 59.5°F
Jun 6 60.4°F 60.1°F 59.6°F
Jun 7 60.5°F 60.4°F 59.6°F
Jun 8 60.7°F 60.2°F 59.8°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 59.7°F 7mi
Newport 59.4°F 11mi
Bristol 59.1°F 25mi
Swansea 58.2°F 34mi

* current water temperature in this city

** straight line distance from Cardiff