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

55.8

°F

June 1, 08:09

Trend:

increasing

Yesterday:

55.7°F

Tomorrow:

56.1°F

Sunrise:

04:57

Sunset:

21:33

Day Length:

16 h. 36 min.

Caernarfon in June

Minimum:

46.5°F

Average:

48.0°F

Maximum:

49.8°F

Sea water temperature in Caernarfon today

As of now, in Caernarfon, the water temperature is 55.8°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 0.3°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 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 58.6°F on 2023, while the historical minimum was 52.2°F on 2015.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 56.4°F, with minimum temperature starting at 56.1°F, while the maximum might reach 56.6°F.

Daily water temperature in Caernarfon

Date Current Year

actual* / forecast**

last year 10 years average
May 18 56.6°F 55.0°F 53.4°F
May 19 56.1°F 55.8°F 53.4°F
May 20 56.4°F 57.2°F 53.7°F
May 21 57.1°F 56.8°F 53.8°F
May 22 57.2°F 56.5°F 53.9°F
May 23 57.6°F 56.2°F 54.1°F
May 24 57.3°F 55.9°F 54.1°F
May 25 57.0°F 55.7°F 54.2°F
May 26 57.7°F 55.4°F 54.5°F
May 27 57.2°F 55.5°F 54.7°F
May 28 56.9°F 56.0°F 54.8°F
May 29 56.4°F 55.8°F 55.0°F
May 30 56.1°F 55.6°F 55.3°F
May 31 55.7°F 55.9°F 55.5°F
Jun 1 55.8°F 56.1°F 55.6°F
Jun 2 56.1°F 56.0°F 55.8°F
Jun 3 56.2°F 55.9°F 55.9°F
Jun 4 56.5°F 55.5°F 56.2°F
Jun 5 56.6°F 57.0°F 56.4°F
Jun 6 56.6°F 57.1°F 56.3°F
Jun 7 56.6°F 57.3°F 56.3°F
Jun 8 56.5°F 56.8°F 56.2°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, 59.8°F in Summer, and 57.3°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Bangor 56.2°F 8mi
Holyhead 55.4°F 19mi
Conwy 57.5°F 21mi
Aberystwyth 58.7°F 51mi

* current water temperature in this city

** straight line distance from Caernarfon