What is the current water temperature in Conwy?

Q: What is the current water temperature in Conwy?

As of now, in Conwy, the water temperature is 9.31°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 > Conwy

Water temperature in Conwy

Detailed information about the current water temperature in Conwy. 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.

48.8

°F

December 13, 08:58

Trend:

decreasing

Yesterday:

49.3°F

Tomorrow:

48.6°F

Sunrise:

08:22

Sunset:

15:57

Day Length:

7 h. 35 min.

Conwy in December

Minimum:

42.9°F

Average:

45.5°F

Maximum:

47.4°F

Sea water temperature in Conwy today

As of now, in Conwy, the water temperature is 48.8°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 0.5°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 fall a bit.

Recent sea temperature and forecast

Today's water temperature closely matches the previous two weeks' average, indicating a stable trend. 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 49.6°F on 2015, while the historical minimum was 47.4°F on 2022.

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 minimum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 48.2°F, the minimum temperature may reach 48.0°F, and the maximum might stay at 48.6°F.

Daily water temperature in Conwy

Date	Current Year actual* / forecast**	last year	10 years average
Nov 29	48.7°F	50.0°F	49.7°F
Nov 30	48.7°F	50.5°F	49.6°F
Dec 1	48.6°F	50.4°F	49.3°F
Dec 2	48.4°F	50.0°F	48.9°F
Dec 3	48.6°F	49.8°F	49.1°F
Dec 4	48.5°F	49.3°F	48.9°F
Dec 5	48.8°F	49.9°F	49.0°F
Dec 6	48.8°F	49.4°F	48.6°F
Dec 7	48.2°F	49.7°F	48.6°F
Dec 8	48.3°F	49.7°F	48.7°F
Dec 9	48.1°F	48.4°F	48.5°F
Dec 10	48.9°F	48.0°F	48.7°F
Dec 11	49.3°F	47.9°F	48.7°F
Dec 12	49.3°F	48.0°F	48.6°F
Dec 13	48.8°F	47.9°F	48.2°F
Dec 14	48.6°F	47.3°F	48.1°F
Dec 15	48.3°F	46.7°F	47.8°F
Dec 16	48.2°F	46.9°F	47.7°F
Dec 17	48.0°F	47.4°F	47.5°F
Dec 18	48.2°F	48.6°F	47.7°F
Dec 19	48.2°F	48.1°F	47.6°F
Dec 20	48.1°F	47.3°F	47.6°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 Conwy by month

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

The warmest water in Conwy was recorded on August 18, 2025, reaching a 66.8°F. While the coldest temperature occurred on March 9, 2018, dipping to 40.2°F. The average readings by season are 45.8°F in Winter, 48.3°F in Spring, 60.6°F in Summer, and 56.8°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bangor	48.6°F	13mi
Caernarfon	50.8°F	21mi
Holyhead	51.7°F	33mi
Birkenhead	46.0°F	35mi
Liverpool	46.1°F	36mi

* current water temperature in this city

** straight line distance from Conwy