All data are in degrees Fahrenheit

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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.
Sea temperature in Conwy now

58.2

°F

June 5, 19:05

Trend:

stable

Yesterday:

58.6°F

Tomorrow:

58.2°F

Sunrise:

04:51

Sunset:

21:37

Day Length:

16 h. 46 min.

Conwy in June

Minimum:

43.6°F

Average:

46.4°F

Maximum:

48.3°F

Sea water temperature in Conwy today

As of now, in Conwy, the water temperature is 58.2°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 stay about the same.

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 60.2°F on 2023, while the historical minimum was 55.4°F on 2019.

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. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 58.2°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Conwy

Date Current Year

actual* / forecast**

last year 10 years average
May 22 54.4°F 57.8°F 54.2°F
May 23 54.1°F 57.7°F 54.5°F
May 24 55.1°F 57.2°F 54.5°F
May 25 56.2°F 57.6°F 54.7°F
May 26 58.2°F 56.9°F 55.0°F
May 27 58.1°F 56.2°F 55.3°F
May 28 58.3°F 55.9°F 55.4°F
May 29 58.9°F 56.0°F 55.6°F
May 30 58.2°F 56.4°F 55.9°F
May 31 58.9°F 57.6°F 56.4°F
Jun 1 59.3°F 57.4°F 56.4°F
Jun 2 59.1°F 57.1°F 56.3°F
Jun 3 59.2°F 57.1°F 56.6°F
Jun 4 58.6°F 56.6°F 56.7°F
Jun 5 58.2°F 56.8°F 57.0°F
Jun 6 58.2°F 56.7°F 57.0°F
Jun 7 57.9°F 56.5°F 56.8°F
Jun 8 57.8°F 56.3°F 56.6°F
Jun 9 58.2°F 56.6°F 57.0°F
Jun 10 58.3°F 56.9°F 57.1°F
Jun 11 58.4°F 56.3°F 57.2°F
Jun 12 58.7°F 57.0°F 57.5°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 57.7°F 13mi
Caernarfon 57.9°F 21mi
Holyhead 55.6°F 33mi
Birkenhead 59.4°F 35mi
Liverpool 59.8°F 36mi

* current water temperature in this city

** straight line distance from Conwy