All data are in degrees Fahrenheit

en

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

58.2

°F

October 10, 19:37

Trend:

decreasing

Yesterday:

59.0°F

Tomorrow:

58.0°F

Sunrise:

07:28

Sunset:

18:31

Day Length:

11 h. 3 min.

Cardiff in October

Minimum:

43.7°F

Average:

45.5°F

Maximum:

47.3°F

Sea water temperature in Cardiff today

As of now, in Cardiff, the water temperature is 58.2°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 1.0°F lower 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 fall a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 61.3°F on 2023, while the historical minimum was 57.9°F on 2020.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 57.6°F, the minimum temperature may reach 57.1°F, and the maximum might stay at 58.0°F.

Daily water temperature in Cardiff

Date Current Year

actual* / forecast**

last year 10 years average
Sep 26 60.7°F 61.3°F 62.2°F
Sep 27 60.4°F 61.1°F 62.0°F
Sep 28 60.2°F 60.9°F 61.7°F
Sep 29 60.1°F 60.2°F 61.4°F
Sep 30 60.1°F 60.0°F 61.1°F
Oct 1 60.1°F 59.8°F 61.0°F
Oct 2 59.8°F 59.4°F 60.8°F
Oct 3 59.7°F 59.5°F 60.7°F
Oct 4 59.7°F 59.2°F 60.4°F
Oct 5 59.5°F 58.7°F 60.1°F
Oct 6 58.8°F 58.6°F 59.9°F
Oct 7 58.7°F 58.6°F 59.8°F
Oct 8 58.6°F 58.5°F 59.7°F
Oct 9 59.0°F 58.2°F 59.4°F
Oct 10 58.2°F 58.3°F 59.3°F
Oct 11 58.0°F 57.7°F 59.1°F
Oct 12 57.9°F 57.4°F 58.9°F
Oct 13 57.7°F 57.6°F 58.7°F
Oct 14 57.6°F 57.5°F 58.7°F
Oct 15 57.7°F 57.3°F 58.7°F
Oct 16 57.3°F 57.2°F 58.3°F
Oct 17 57.1°F 56.6°F 58.2°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, 64.3°F in Summer, and 58.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Barry 58.8°F 7mi
Newport 56.8°F 11mi
Bristol 54.8°F 25mi
Swansea 59.8°F 34mi

* current water temperature in this city

** straight line distance from Cardiff