Caernarfon Water Temperature
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Caernarfon is a town close to Irish Sea.
August is the month with the highest water temperature at 59.9°F / 15.5°C.
The coldest month is March with an average water temperature of 45.1°F / 7.3°C.
March is the driest at 1.1in / 27.4mm and December the wettest month with 6.3in / 158.9mm.
With an average air temperature of 58.8°F / 14.9°C, July is the warmest month in a year. February is the coldest with 40.6°F / 4.8°C average air temperature.
The Climate is described as temperate oceanic climate with warm summer. Best time to Visit would be in June, July, August, September.
The coldest month is March with an average water temperature of 45.1°F / 7.3°C.
March is the driest at 1.1in / 27.4mm and December the wettest month with 6.3in / 158.9mm.
With an average air temperature of 58.8°F / 14.9°C, July is the warmest month in a year. February is the coldest with 40.6°F / 4.8°C average air temperature.
The Climate is described as temperate oceanic climate with warm summer. Best time to Visit would be in June, July, August, September.
Caernarfon Summary
| Description | Value |
|---|---|
| Current water temperature | / |
| Warmest Month Water Temperature: | August with 15.5°C / 59.9°F |
| Coldest Month Water Temperature: | March with 7.3°C / 45.1°F |
| Warmest Month Air Temperature: | July with 14.9°C / 58.8°F |
| Coldest Month Air Temperature: | February with 4.8°C / 40.6°F |
| Wettest Month: | December with 158.9mm / 6.3in |
| Driest Month: | March with 27.4mm / 1.1in |
| Highest Humidity | December with 85.1% |
| Lowest Humidity | May with 78.9% |
| Best Time to Visit: | June, July, August, September |
| Climate Classification | temperate oceanic climate with warm summer |
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Caernarfon water temperature by month
Irish Sea water temperature by month
| Max. Water
Temperature (°C) |
ø. Water
Temperature (°C) |
Min. Water
Temperature (°C) |
|
|---|---|---|---|
|
January |
9.2 | 8.5 | 8 |
|
February |
8 | 7.6 | 7.4 |
|
March |
7.7 | 7.3 | 7.1 |
|
April |
9 | 8.3 | 7.6 |
|
May |
11.2 | 10 | 9 |
|
June |
13.4 | 12.3 | 11.2 |
|
July |
15.1 | 14.3 | 13.4 |
|
August |
15.7 | 15.4 | 15 |
|
September |
15.7 | 15.4 | 14.9 |
|
October |
15 | 14.2 | 13.3 |
|
November |
13.3 | 12.2 | 11.1 |
|
December |
11 | 10.1 | 9.2 |
Irish Sea water temperature by month
| Max. Water
Temperature (°F) |
ø. Water
Temperature (°F) |
Min. Water
Temperature (°F) |
|
|---|---|---|---|
|
January |
48.6 | 47.3 | 46.4 |
|
February |
46.4 | 45.7 | 45.3 |
|
March |
45.9 | 45.1 | 44.8 |
|
April |
48.2 | 46.9 | 45.7 |
|
May |
52.2 | 50 | 48.2 |
|
June |
56.1 | 54.1 | 52.2 |
|
July |
59.2 | 57.7 | 56.1 |
|
August |
60.3 | 59.7 | 59 |
|
September |
60.3 | 59.7 | 58.8 |
|
October |
59 | 57.6 | 55.9 |
|
November |
55.9 | 54 | 52 |
|
December |
51.8 | 50.2 | 48.6 |
August is the month with the highest water temperature at 59.9°F / 15.5°C.
The month with the lowest is March with an average water temperature of 45.1°F / 7.3°C.
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Caernarfon weather today & 14-day weather forecast
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Caernarfon weather by month / climate table
Max. Temperature °C | ø. Temperature °C | Min. Temperature (°C) |
Precip. (mm) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
7.5 | 5 | 2 | 132.4 | 17 | 84.9% |
|
February |
7.4 | 4.8 | 2.1 | 92.4 | 13 | 82.8% |
|
March |
9.4 | 5.7 | 1.3 | 27.4 | 9 | 81.6% |
|
April |
12.5 | 7.8 | 3.5 | 53.5 | 6 | 79.2% |
|
May |
14.3 | 10.6 | 6 | 29.1 | 12 | 78.9% |
|
June |
17.7 | 13.2 | 9.2 | 37.1 | 8 | 79.7% |
|
July |
18.3 | 14.9 | 11.4 | 51.7 | 16 | 81% |
|
August |
18 | 14.7 | 11.6 | 125.5 | 18 | 83.1% |
|
September |
16.9 | 13.4 | 9.7 | 68.6 | 14 | 82.3% |
|
October |
14.7 | 10.8 | 7.4 | 126.7 | 0 | 82.7% |
|
November |
11.3 | 7.8 | 4.1 | 143.7 | 19 | 84.5% |
|
December |
8.6 | 5.7 | 2.5 | 158.9 | 17 | 85.1% |
Max. Temperature °F | ø. Temperature °F | Min. Temperature (°F) |
Precip. (in) |
Rainy Days (d) |
Rel. Humidity (%) |
|
|---|---|---|---|---|---|---|
|
January |
45.5 | 41 | 35.6 | 5.2 | 17 | 84.9% |
|
February |
45.3 | 40.6 | 35.8 | 3.6 | 13 | 82.8% |
|
March |
48.9 | 42.3 | 34.3 | 1.1 | 9 | 81.6% |
|
April |
54.5 | 46 | 38.3 | 2.1 | 6 | 79.2% |
|
May |
57.7 | 51.1 | 42.8 | 1.1 | 12 | 78.9% |
|
June |
63.9 | 55.8 | 48.6 | 1.5 | 8 | 79.7% |
|
July |
64.9 | 58.8 | 52.5 | 2 | 16 | 81% |
|
August |
64.4 | 58.5 | 52.9 | 4.9 | 18 | 83.1% |
|
September |
62.4 | 56.1 | 49.5 | 2.7 | 14 | 82.3% |
|
October |
58.5 | 51.4 | 45.3 | 5 | 0 | 82.7% |
|
November |
52.3 | 46 | 39.4 | 5.7 | 19 | 84.5% |
|
December |
47.5 | 42.3 | 36.5 | 6.3 | 17 | 85.1% |
March is the most draught at 1.1in / 27.4mm and December the month with the most rain around 6.3in / 158.9mm.
The avg. temperature is around 58.8°F / 14.9°C, July is the hottest month in a year. February is the coolest with 40.6°F / 4.8°C avg. temperature.
Activities & POI in Caernarfon
| Type of Activity | List |
|---|---|
| Marina for Sailing, Boat adventures, fishing | Caernarfon Marina |
| Attraction | Castell Caernarfon |
| Caravan Site | Coed Helen Caravan Park |
