Y Felinheli Water Temperature
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The coldest month is March with an average water temperature of 45.1°F / 7.3°C.
March is the driest at 0.4in / 10.7mm and August the wettest month with 4.7in / 120.5mm.
With an average air temperature of 59.4°F / 15.2°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.
Y Felinheli 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 15.2°C / 59.4°F | 
| Coldest Month Air Temperature: | February with 4.8°C / 40.6°F | 
| Wettest Month: | August with 120.5mm / 4.7in | 
| Driest Month: | March with 10.7mm / 0.4in | 
| Highest Humidity | December with 85.3% | 
| Lowest Humidity | May with 78.2% | 
| Best Time to Visit: | June, July, August, September | 
| Climate Classification | temperate oceanic climate with warm summer | 
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Y Felinheli 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 | 
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Y Felinheli weather today & 14-day weather forecast
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Y Felinheli weather by month / climate table
Max. Temperature °C | ø. Temperature °C | Min. Temperature (°C) | 
     Precip. (mm)  | 
    
     Rainy Days (d)  | 
    
     Rel. Humidity (%)  | 
    |
|---|---|---|---|---|---|---|
| 
         January  | 
        7.6 | 5 | 1.8 | 98.1 | 14 | 84.9% | 
| 
         February  | 
        7.7 | 4.8 | 1.9 | 79.1 | 11 | 82.7% | 
| 
         March  | 
        9.8 | 5.8 | 1.1 | 10.7 | 9 | 81.2% | 
| 
         April  | 
        13.1 | 8 | 3.5 | 50.9 | 6 | 78.7% | 
| 
         May  | 
        14.9 | 10.8 | 5.8 | 24.4 | 11 | 78.2% | 
| 
         June  | 
        18.3 | 13.5 | 9.1 | 35.4 | 6 | 78.6% | 
| 
         July  | 
        19 | 15.2 | 11.2 | 35.9 | 16 | 79.7% | 
| 
         August  | 
        18.6 | 14.9 | 11.5 | 120.5 | 18 | 82.1% | 
| 
         September  | 
        17.4 | 13.4 | 9.5 | 60.3 | 10 | 81.8% | 
| 
         October  | 
        15 | 10.8 | 7.2 | 73.9 | 0 | 82.7% | 
| 
         November  | 
        11.4 | 7.8 | 3.9 | 110.4 | 18 | 84.7% | 
| 
         December  | 
        8.7 | 5.7 | 2.3 | 120.2 | 16 | 85.3% | 
Max. Temperature °F | ø. Temperature °F | Min. Temperature (°F) | 
     Precip. (in)  | 
    
     Rainy Days (d)  | 
    
     Rel. Humidity (%)  | 
    |
|---|---|---|---|---|---|---|
| 
         January  | 
        45.7 | 41 | 35.2 | 3.9 | 14 | 84.9% | 
| 
         February  | 
        45.9 | 40.6 | 35.4 | 3.1 | 11 | 82.7% | 
| 
         March  | 
        49.6 | 42.4 | 34 | 0.4 | 9 | 81.2% | 
| 
         April  | 
        55.6 | 46.4 | 38.3 | 2 | 6 | 78.7% | 
| 
         May  | 
        58.8 | 51.4 | 42.4 | 1 | 11 | 78.2% | 
| 
         June  | 
        64.9 | 56.3 | 48.4 | 1.4 | 6 | 78.6% | 
| 
         July  | 
        66.2 | 59.4 | 52.2 | 1.4 | 16 | 79.7% | 
| 
         August  | 
        65.5 | 58.8 | 52.7 | 4.7 | 18 | 82.1% | 
| 
         September  | 
        63.3 | 56.1 | 49.1 | 2.4 | 10 | 81.8% | 
| 
         October  | 
        59 | 51.4 | 45 | 2.9 | 0 | 82.7% | 
| 
         November  | 
        52.5 | 46 | 39 | 4.3 | 18 | 84.7% | 
| 
         December  | 
        47.7 | 42.3 | 36.1 | 4.7 | 16 | 85.3% | 
Activities & POI in Y Felinheli
| Type of Activity | List | 
|---|---|
| Marina for Sailing, Boat adventures, fishing | Port Dinorwic Marina | 
| Attraction | Plas Newydd |