All data are in degrees Fahrenheit

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Water temperature in Caernarfon

Detailed information about the current water temperature in Caernarfon. 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 Caernarfon now

50.8

°F

December 8, 06:12

Trend:

decreasing

Yesterday:

50.8°F

Tomorrow:

50.6°F

Sunrise:

08:18

Sunset:

16:00

Day Length:

7 h. 42 min.

Caernarfon in December

Minimum:

45.8°F

Average:

47.2°F

Maximum:

49.0°F

Sea water temperature in Caernarfon today

As of now, in Caernarfon, the water temperature is 50.8°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 about the same as 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 slightly 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 52.8°F on 2015, while the historical minimum was 49.4°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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 50.1°F, the minimum temperature may reach 49.6°F, and the maximum might stay at 50.6°F.

Daily water temperature in Caernarfon

Date Current Year

actual* / forecast**

 last year 10 years average
Nov 24 52.6°F 52.4°F 52.7°F
Nov 25 52.2°F 51.8°F 52.4°F
Nov 26 51.9°F 51.7°F 52.2°F
Nov 27 51.6°F 51.6°F 52.0°F
Nov 28 51.5°F 51.7°F 51.9°F
Nov 29 51.4°F 51.5°F 51.6°F
Nov 30 51.4°F 51.4°F 51.4°F
Dec 1 51.4°F 50.8°F 51.3°F
Dec 2 51.6°F 50.6°F 51.3°F
Dec 3 51.7°F 50.7°F 51.2°F
Dec 4 51.7°F 50.8°F 51.1°F
Dec 5 51.7°F 50.8°F 51.0°F
Dec 6 51.1°F 50.6°F 50.9°F
Dec 7 50.8°F 50.6°F 50.9°F
Dec 8 50.8°F 50.3°F 50.9°F
Dec 9 50.6°F 50.5°F 50.7°F
Dec 10 50.5°F 50.3°F 50.5°F
Dec 11 50.3°F 49.8°F 50.4°F
Dec 12 50.2°F 49.9°F 50.2°F
Dec 13 50.0°F 49.9°F 50.1°F
Dec 14 49.7°F 49.2°F 49.8°F
Dec 15 49.6°F 49.2°F 49.7°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 Caernarfon by month

January

February

March

April

May

June

July

August

September

October

November

December

In an average year, Caernarfon offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Caernarfon was recorded on July 22, 2021, reaching a 66.9°F. While the coldest temperature occurred on March 11, 2018, dipping to 42.3°F. The average readings by season are 47.5°F in Winter, 49.0°F in Spring, 59.8°F in Summer, and 57.3°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Bangor 49.7°F 8mi
Holyhead 52.0°F 19mi
Conwy 49.7°F 21mi
Aberystwyth 49.8°F 51mi

* current water temperature in this city

** straight line distance from Caernarfon