What is the current water temperature in Swansea?

Q: What is the current water temperature in Swansea?

As of now, in Swansea, the water temperature is 8.06°C. 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.

United Kingdom > Swansea

Water temperature in Swansea

Detailed information about the current water temperature in Swansea. 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.

46.5

°F

February 24, 04:09

Trend:

stable

Yesterday:

46.4°F

Tomorrow:

46.5°F

Sunrise:

07:13

Sunset:

17:46

Day Length:

10 h. 33 min.

Swansea in February

Minimum:

46.8°F

Average:

48.1°F

Maximum:

50.8°F

Sea water temperature in Swansea today

As of now, in Swansea, the water temperature is 46.5°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 0.7°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 stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 47.7°F on 2024, while the historical minimum was 43.7°F on 2018.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 46.1°F, the minimum temperature may reach 45.4°F, and the maximum might stay at 46.5°F.

Daily water temperature in Swansea

Date	Current Year actual* / forecast**	last year	10 years average
Feb 10	45.8°F	45.0°F	45.6°F
Feb 11	45.8°F	45.1°F	45.7°F
Feb 12	46.0°F	44.3°F	45.6°F
Feb 13	46.2°F	44.4°F	45.6°F
Feb 14	46.2°F	44.5°F	45.6°F
Feb 15	45.4°F	44.7°F	45.3°F
Feb 16	45.8°F	44.1°F	45.2°F
Feb 17	45.6°F	44.0°F	45.2°F
Feb 18	46.2°F	43.7°F	45.2°F
Feb 19	45.7°F	43.6°F	45.4°F
Feb 20	44.5°F	43.8°F	45.2°F
Feb 21	45.2°F	43.9°F	45.2°F
Feb 22	45.3°F	44.0°F	45.2°F
Feb 23	46.4°F	45.1°F	45.7°F
Feb 24	46.5°F	45.0°F	45.8°F
Feb 25	46.5°F	45.0°F	45.8°F
Feb 26	46.5°F	45.6°F	45.8°F
Feb 27	46.5°F	45.4°F	45.8°F
Feb 28	46.3°F	45.0°F	45.6°F
Mar 1	45.7°F	45.3°F	45.6°F
Mar 2	45.6°F	45.2°F	45.5°F
Mar 3	45.4°F	45.1°F	45.3°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 Swansea by month

In an average year, Swansea offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Swansea was recorded on July 14, 2025, reaching a 68.5°F. While the coldest temperature occurred on March 10, 2018, dipping to 42.2°F. The average readings by season are 47.1°F in Winter, 50.0°F in Spring, 63.1°F in Summer, and 59.2°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Barry	46.5°F	32mi
Cardiff	46.0°F	34mi
Newport	44.7°F	41mi
Aberystwyth	46.3°F	55mi

* current water temperature in this city

** straight line distance from Swansea