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 15.57°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.

60.0

°F

September 18, 11:30

Trend:

decreasing

Yesterday:

60.4°F

Tomorrow:

59.9°F

Sunrise:

06:55

Sunset:

19:26

Day Length:

12 h. 31 min.

Caernarfon in September

Minimum:

45.7°F

Average:

47.6°F

Maximum:

49.6°F

Sea water temperature in Caernarfon today

As of now, in Caernarfon, the water temperature is 60.0°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 0.6°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 stay about the same.

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 62.6°F on 2023, while the historical minimum was 58.7°F on 2015.

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 maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 59.6°F, the minimum temperature may reach 59.2°F, and the maximum might stay at 59.9°F.

Daily water temperature in Caernarfon

Date	Current Year actual* / forecast**	last year	10 years average
Sep 4	62.9°F	61.1°F	61.5°F
Sep 5	63.4°F	61.3°F	61.6°F
Sep 6	63.2°F	61.1°F	61.6°F
Sep 7	62.9°F	61.5°F	61.8°F
Sep 8	62.9°F	62.5°F	61.8°F
Sep 9	62.5°F	62.2°F	61.7°F
Sep 10	62.3°F	61.7°F	61.7°F
Sep 11	61.8°F	61.3°F	61.4°F
Sep 12	61.4°F	60.7°F	61.3°F
Sep 13	61.2°F	60.0°F	61.0°F
Sep 14	60.9°F	59.9°F	60.9°F
Sep 15	60.8°F	59.8°F	61.0°F
Sep 16	60.8°F	59.3°F	60.7°F
Sep 17	60.4°F	59.6°F	60.7°F
Sep 18	60.0°F	59.8°F	60.7°F
Sep 19	59.9°F	60.0°F	60.5°F
Sep 20	59.8°F	59.9°F	60.4°F
Sep 21	59.8°F	60.0°F	60.5°F
Sep 22	59.7°F	60.0°F	60.3°F
Sep 23	59.5°F	59.9°F	60.2°F
Sep 24	59.3°F	59.8°F	60.0°F
Sep 25	59.2°F	59.5°F	59.8°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 47.4°F in Winter, 49.1°F in Spring, 60.0°F in Summer, and 57.3°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Bangor	60.5°F	8mi
Holyhead	60.7°F	19mi
Conwy	60.6°F	21mi
Aberystwyth	61.3°F	51mi

* current water temperature in this city

** straight line distance from Caernarfon