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

63.9

°F

June 26, 22:41

Trend:

increasing

Yesterday:

63.8°F

Tomorrow:

64.3°F

Sunrise:

04:49

Sunset:

21:47

Day Length:

16 h. 58 min.

Conwy in July

Minimum:

42.8°F

Average:

45.9°F

Maximum:

48.1°F

Sea water temperature in Conwy today

As of now, in Conwy, the water temperature is 63.9°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 4.1°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 62.8°F on 2023, while the historical minimum was 57.8°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 64.2°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
Jun 12 58.1°F 57.0°F 57.6°F
Jun 13 57.9°F 58.5°F 57.5°F
Jun 14 57.6°F 58.2°F 57.7°F
Jun 15 57.7°F 58.7°F 57.9°F
Jun 16 57.7°F 58.7°F 58.2°F
Jun 17 58.0°F 58.6°F 58.2°F
Jun 18 59.5°F 59.0°F 58.4°F
Jun 19 59.9°F 60.1°F 58.6°F
Jun 20 59.9°F 60.0°F 59.0°F
Jun 21 60.0°F 60.8°F 59.2°F
Jun 22 59.9°F 61.1°F 59.3°F
Jun 23 61.3°F 60.8°F 59.5°F
Jun 24 63.4°F 61.1°F 59.8°F
Jun 25 63.8°F 60.7°F 60.1°F
Jun 26 63.9°F 60.0°F 59.8°F
Jun 27 64.3°F 60.8°F 60.1°F
Jun 28 64.5°F 62.0°F 60.3°F
Jun 29 64.3°F 61.7°F 60.2°F
Jun 30 64.2°F 62.0°F 60.1°F
Jul 1 64.0°F 61.6°F 59.8°F
Jul 2 64.0°F 61.3°F 59.8°F
Jul 3 64.2°F 63.1°F 60.1°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 62.6°F 13mi
Caernarfon 62.6°F 21mi
Holyhead 59.4°F 33mi
Birkenhead 66.4°F 35mi
Liverpool 65.2°F 36mi

* current water temperature in this city

** straight line distance from Conwy