All data are in degrees Fahrenheit

en

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.
Sea temperature in Swansea now

57.2

°F

May 20, 04:12

Trend:

increasing

Yesterday:

56.9°F

Tomorrow:

57.6°F

Sunrise:

05:16

Sunset:

21:10

Day Length:

15 h. 54 min.

Swansea in May

Minimum:

46.8°F

Average:

47.9°F

Maximum:

49.9°F

Sea water temperature in Swansea today

As of now, in Swansea, the water temperature is 57.2°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 2.9°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 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 56.1°F on 2022, while the historical minimum was 53.0°F on 2015.

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 suggests a gradual increase. The average temperature is expected to rise up to 58.2°F, with minimum temperature starting at 57.6°F, while the maximum might reach 58.9°F.

Daily water temperature in Swansea

Date Current Year

actual* / forecast**

last year 10 years average
May 6 52.1°F 52.8°F 51.8°F
May 7 52.7°F 53.5°F 52.2°F
May 8 52.6°F 53.2°F 52.1°F
May 9 53.9°F 53.1°F 52.5°F
May 10 52.8°F 53.4°F 52.7°F
May 11 53.0°F 53.8°F 52.9°F
May 12 53.0°F 54.4°F 52.9°F
May 13 53.3°F 55.1°F 53.3°F
May 14 53.5°F 55.0°F 53.4°F
May 15 55.9°F 54.0°F 53.6°F
May 16 56.3°F 54.9°F 53.8°F
May 17 56.2°F 54.9°F 54.1°F
May 18 57.1°F 54.8°F 54.2°F
May 19 56.9°F 55.4°F 54.0°F
May 20 57.2°F 55.4°F 54.3°F
May 21 57.6°F 56.7°F 54.7°F
May 22 57.8°F 57.2°F 55.0°F
May 23 58.0°F 57.1°F 55.1°F
May 24 58.4°F 57.4°F 55.5°F
May 25 58.5°F 57.8°F 55.6°F
May 26 58.5°F 57.0°F 55.7°F
May 27 58.9°F 58.7°F 56.0°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 August 14, 2022, reaching a 68.4°F. While the coldest temperature occurred on March 10, 2018, dipping to 42.2°F. The average readings by season are 47.3°F in Winter, 49.7°F in Spring, 62.8°F in Summer, and 59.3°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Barry 56.4°F 32mi
Cardiff 57.9°F 34mi
Newport 58.9°F 41mi
Aberystwyth 56.1°F 55mi

* current water temperature in this city

** straight line distance from Swansea