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

57.7

°F

June 1, 04:03

Trend:

stable

Yesterday:

57.7°F

Tomorrow:

58.0°F

Sunrise:

04:57

Sunset:

21:33

Day Length:

16 h. 36 min.

Caernarfon in June

Minimum:

46.5°F

Average:

47.9°F

Maximum:

49.8°F

Sea water temperature in Caernarfon today

As of now, in Caernarfon, the water temperature is 57.7°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 1.7°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 58.6°F on 2023, while the historical minimum was 54.7°F on 2018.

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 suggests a gradual increase. The average temperature is expected to rise up to 58.3°F, with minimum temperature starting at 58.0°F, while the maximum might reach 58.5°F.

Daily water temperature in Caernarfon

Date Current Year

actual* / forecast**

last year 10 years average
May 18 53.0°F 56.6°F 53.5°F
May 19 52.8°F 56.1°F 53.6°F
May 20 53.2°F 56.4°F 53.9°F
May 21 53.2°F 57.1°F 54.0°F
May 22 53.6°F 57.2°F 54.1°F
May 23 53.9°F 57.6°F 54.4°F
May 24 55.0°F 57.3°F 54.5°F
May 25 56.4°F 57.0°F 54.6°F
May 26 57.3°F 57.7°F 55.0°F
May 27 57.7°F 57.2°F 55.2°F
May 28 57.5°F 56.9°F 55.3°F
May 29 57.3°F 56.4°F 55.5°F
May 30 57.8°F 56.1°F 55.8°F
May 31 57.7°F 55.7°F 56.0°F
Jun 1 57.7°F 56.0°F 55.9°F
Jun 2 58.0°F 56.8°F 56.3°F
Jun 3 58.0°F 56.9°F 56.3°F
Jun 4 58.3°F 56.9°F 56.6°F
Jun 5 58.5°F 57.1°F 56.8°F
Jun 6 58.5°F 57.2°F 56.8°F
Jun 7 58.4°F 57.0°F 56.7°F
Jun 8 58.3°F 56.6°F 56.6°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 47.3°F in Winter, 49.4°F in Spring, 60.2°F in Summer, and 57.3°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Bangor 57.3°F 8mi
Holyhead 54.6°F 19mi
Conwy 58.6°F 21mi
Aberystwyth 59.2°F 51mi

* current water temperature in this city

** straight line distance from Caernarfon