What is the current water temperature in Caernarfon?

Q: What is the current water temperature in Caernarfon?

As of now, in Caernarfon, the water temperature is 9.14°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 > Caernarfon

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.

48.5

°F

December 21, 15:48

Trend:

stable

Yesterday:

48.3°F

Tomorrow:

48.3°F

Sunrise:

08:29

Sunset:

16:02

Day Length:

7 h. 33 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 48.5°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 0.8°F lower than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. 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 is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 51.2°F on 2015, while the historical minimum was 47.9°F on 2021.

latest data

last year

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 minimum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 48.1°F, the minimum temperature may reach 47.8°F, and the maximum might stay at 48.3°F.

Daily water temperature in Caernarfon

Date	Current Year actual* / forecast**	last year	10 years average
Dec 7	50.8°F	50.6°F	50.9°F
Dec 8	50.8°F	50.3°F	50.9°F
Dec 9	50.9°F	50.5°F	50.7°F
Dec 10	50.4°F	50.3°F	50.5°F
Dec 11	50.0°F	49.8°F	50.3°F
Dec 12	49.9°F	49.9°F	50.2°F
Dec 13	49.8°F	49.9°F	50.0°F
Dec 14	49.3°F	49.2°F	49.7°F
Dec 15	49.4°F	49.2°F	49.7°F
Dec 16	48.8°F	48.9°F	49.4°F
Dec 17	48.6°F	48.6°F	49.3°F
Dec 18	48.6°F	48.5°F	49.2°F
Dec 19	48.6°F	48.5°F	49.0°F
Dec 20	48.3°F	48.6°F	49.2°F
Dec 21	48.5°F	49.0°F	49.2°F
Dec 22	48.3°F	48.6°F	49.0°F
Dec 23	48.2°F	48.6°F	49.0°F
Dec 24	48.1°F	48.7°F	48.9°F
Dec 25	48.0°F	48.8°F	48.8°F
Dec 26	48.1°F	49.1°F	48.8°F
Dec 27	47.9°F	49.0°F	48.7°F
Dec 28	47.8°F	48.9°F	48.6°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

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	47.3°F	8mi
Holyhead	50.3°F	19mi
Conwy	47.4°F	21mi
Aberystwyth	48.0°F	51mi

* current water temperature in this city

** straight line distance from Caernarfon