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 15.77°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.

60.4

°F

September 17, 12:42

Trend:

stable

Yesterday:

60.7°F

Tomorrow:

60.5°F

Sunrise:

06:52

Sunset:

19:27

Day Length:

12 h. 35 min.

Conwy in September

Minimum:

43.3°F

Average:

45.9°F

Maximum:

48.1°F

Sea water temperature in Conwy today

As of now, in Conwy, the water temperature is 60.4°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 0.7°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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling 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 63.3°F on 2023, while the historical minimum was 59.0°F on 2015.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 59.9°F, the minimum temperature may reach 59.4°F, and the maximum might stay at 60.5°F.

Daily water temperature in Conwy

Date	Current Year actual* / forecast**	last year	10 years average
Sep 3	63.5°F	62.0°F	62.3°F
Sep 4	63.9°F	61.9°F	62.3°F
Sep 5	63.7°F	61.8°F	62.2°F
Sep 6	63.6°F	61.9°F	62.4°F
Sep 7	63.3°F	62.0°F	62.3°F
Sep 8	63.6°F	61.8°F	62.3°F
Sep 9	63.3°F	61.5°F	62.2°F
Sep 10	63.1°F	61.7°F	62.2°F
Sep 11	62.6°F	61.2°F	61.9°F
Sep 12	62.2°F	60.7°F	61.7°F
Sep 13	61.7°F	60.1°F	61.5°F
Sep 14	61.3°F	60.1°F	61.3°F
Sep 15	60.7°F	60.1°F	61.4°F
Sep 16	60.7°F	59.7°F	61.3°F
Sep 17	60.4°F	59.9°F	61.1°F
Sep 18	60.5°F	60.3°F	61.2°F
Sep 19	60.3°F	60.0°F	60.9°F
Sep 20	60.2°F	59.5°F	60.8°F
Sep 21	60.0°F	59.8°F	60.6°F
Sep 22	59.7°F	59.8°F	60.4°F
Sep 23	59.6°F	59.7°F	60.3°F
Sep 24	59.4°F	59.5°F	60.0°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 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	60.7°F	13mi
Caernarfon	60.4°F	21mi
Holyhead	60.4°F	33mi
Birkenhead	59.3°F	35mi
Liverpool	59.5°F	36mi

* current water temperature in this city

** straight line distance from Conwy