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 13.51°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.

56.3

°F

October 18, 01:39

Trend:

decreasing

Yesterday:

56.4°F

Tomorrow:

56.2°F

Sunrise:

07:47

Sunset:

18:13

Day Length:

10 h. 26 min.

Conwy in October

Minimum:

43.5°F

Average:

45.7°F

Maximum:

47.9°F

Sea water temperature in Conwy today

As of now, in Conwy, the water temperature is 56.3°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 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 fall a bit.

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 57.6°F on 2016, while the historical minimum was 55.2°F on 2024.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 55.7°F, the minimum temperature may reach 55.0°F, and the maximum might stay at 56.2°F.

Daily water temperature in Conwy

Date	Current Year actual* / forecast**	last year	10 years average
Oct 4	59.1°F	57.4°F	59.0°F
Oct 5	58.8°F	57.5°F	58.8°F
Oct 6	58.3°F	57.2°F	58.6°F
Oct 7	58.2°F	57.0°F	58.3°F
Oct 8	58.0°F	56.9°F	58.2°F
Oct 9	58.3°F	56.6°F	58.0°F
Oct 10	58.1°F	56.6°F	57.8°F
Oct 11	57.9°F	56.0°F	57.6°F
Oct 12	57.6°F	55.7°F	57.3°F
Oct 13	57.7°F	55.7°F	57.3°F
Oct 14	57.6°F	55.9°F	57.2°F
Oct 15	57.3°F	55.8°F	57.1°F
Oct 16	56.9°F	55.8°F	57.0°F
Oct 17	56.4°F	55.4°F	56.8°F
Oct 18	56.3°F	55.2°F	56.6°F
Oct 19	56.2°F	55.1°F	56.5°F
Oct 20	56.1°F	55.2°F	56.4°F
Oct 21	55.9°F	55.5°F	56.2°F
Oct 22	55.8°F	55.3°F	56.1°F
Oct 23	55.5°F	55.0°F	55.8°F
Oct 24	55.3°F	54.7°F	55.6°F
Oct 25	55.0°F	55.0°F	55.3°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, 48.3°F in Spring, 60.6°F in Summer, and 56.8°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bangor	56.8°F	13mi
Caernarfon	57.2°F	21mi
Holyhead	58.7°F	33mi
Birkenhead	55.6°F	35mi
Liverpool	55.6°F	36mi

* current water temperature in this city

** straight line distance from Conwy