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 9.59°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.

49.3

°F

April 18, 10:50

Trend:

increasing

Yesterday:

49.2°F

Tomorrow:

49.6°F

Sunrise:

06:10

Sunset:

20:20

Day Length:

14 h. 10 min.

Conwy in April

Minimum:

43.8°F

Average:

46.5°F

Maximum:

48.5°F

Sea water temperature in Conwy today

As of now, in Conwy, the water temperature is 49.3°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 1.2°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 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 49.8°F on 2020, while the historical minimum was 44.3°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 50.1°F, with minimum temperature starting at 49.6°F, while the maximum might reach 50.6°F.

Daily water temperature in Conwy

Date	Current Year actual* / forecast**	last year	10 years average
Apr 4	47.5°F	48.2°F	46.6°F
Apr 5	47.2°F	49.4°F	46.8°F
Apr 6	47.4°F	49.0°F	46.9°F
Apr 7	47.5°F	49.0°F	47.1°F
Apr 8	47.5°F	48.4°F	47.1°F
Apr 9	47.4°F	48.6°F	47.1°F
Apr 10	48.3°F	48.7°F	47.1°F
Apr 11	48.3°F	48.0°F	47.2°F
Apr 12	48.2°F	49.0°F	47.3°F
Apr 13	48.3°F	48.8°F	47.2°F
Apr 14	48.2°F	49.6°F	47.5°F
Apr 15	48.3°F	49.5°F	47.6°F
Apr 16	49.0°F	49.4°F	47.9°F
Apr 17	49.2°F	49.4°F	48.0°F
Apr 18	49.3°F	49.2°F	48.0°F
Apr 19	49.6°F	49.1°F	48.4°F
Apr 20	49.7°F	49.1°F	48.4°F
Apr 21	50.1°F	48.8°F	48.8°F
Apr 22	50.3°F	49.4°F	49.1°F
Apr 23	50.3°F	49.5°F	49.1°F
Apr 24	50.5°F	50.0°F	49.2°F
Apr 25	50.6°F	50.1°F	49.3°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 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, 48.6°F in Spring, 60.9°F in Summer, and 56.9°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bangor	48.8°F	13mi
Caernarfon	49.9°F	21mi
Holyhead	49.2°F	33mi
Birkenhead	49.8°F	35mi
Liverpool	49.8°F	36mi

* current water temperature in this city

** straight line distance from Conwy