What is the current water temperature in Aberystwyth?

Q: What is the current water temperature in Aberystwyth?

As of now, in Aberystwyth, the water temperature is 12.43°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 > Aberystwyth

Water temperature in Aberystwyth

Detailed information about the current water temperature in Aberystwyth. 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.

54.4

°F

May 18, 06:27

Trend:

increasing

Yesterday:

54.3°F

Tomorrow:

54.5°F

Sunrise:

05:17

Sunset:

21:10

Day Length:

15 h. 53 min.

Aberystwyth in May

Minimum:

44.7°F

Average:

46.6°F

Maximum:

49.3°F

Sea water temperature in Aberystwyth today

As of now, in Aberystwyth, the water temperature is 54.4°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 0.3°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 rise a bit.

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 56.8°F on 2025, while the historical minimum was 53.0°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 suggests a gradual increase. The average temperature is expected to rise up to 55.3°F, with minimum temperature starting at 54.5°F, while the maximum might reach 55.8°F.

Daily water temperature in Aberystwyth

Date	Current Year actual* / forecast**	last year	10 years average
May 4	53.0°F	53.7°F	51.7°F
May 5	53.2°F	54.3°F	51.9°F
May 6	53.0°F	54.3°F	52.0°F
May 7	53.3°F	53.3°F	52.2°F
May 8	53.5°F	53.5°F	52.4°F
May 9	53.5°F	54.4°F	52.7°F
May 10	53.7°F	54.3°F	52.6°F
May 11	54.6°F	54.6°F	52.9°F
May 12	54.7°F	54.7°F	53.0°F
May 13	54.5°F	55.6°F	53.5°F
May 14	54.7°F	55.7°F	53.8°F
May 15	54.4°F	55.7°F	54.2°F
May 16	54.3°F	56.3°F	54.4°F
May 17	54.3°F	56.6°F	54.6°F
May 18	54.4°F	56.8°F	54.7°F
May 19	54.5°F	57.6°F	54.8°F
May 20	54.8°F	56.7°F	55.1°F
May 21	55.2°F	57.9°F	55.5°F
May 22	55.3°F	58.5°F	55.6°F
May 23	55.7°F	58.7°F	56.0°F
May 24	55.7°F	58.5°F	56.0°F
May 25	55.8°F	58.4°F	56.2°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 Aberystwyth by month

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

The warmest water in Aberystwyth was recorded on July 23, 2021, reaching a 68.8°F. While the coldest temperature occurred on March 9, 2018, dipping to 40.5°F. The average readings by season are 46.1°F in Winter, 49.7°F in Spring, 62.5°F in Summer, and 57.7°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Caernarfon	52.8°F	51mi
Swansea	54.6°F	55mi
Bangor	53.1°F	56mi
Conwy	53.7°F	61mi

* current water temperature in this city

** straight line distance from Aberystwyth