Porthmadog Sea Temperature

(Today) 2022

15.1°C / 59.2°F

Current weather

13°C / 56°F
(broken clouds)

Partly cloudy

Wind

16 mph

Humidity

87%


The measurements for the water temperature in Porthmadog, Wales are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

Monthly average water temp

Monthly average max / min water temperatures

The graph below shows the range of monthly Porthmadog water temperature derived from many years of historical sea surface temperature data.

Porthmadog average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Porthmadog
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 7.6 7.4 7.6 8.3 9.6 11.3 12.7 14.5 14.8 13.4 12 9.2
Max °C 10 9.7 8.9 10.2 11.7 13.9 15.8 16 16.1 15.4 14.3 12.6
Min °F 46.6 46.2 46.2 47.7 50.1 53.4 56.1 58.7 59.1 56.9 54.5 49.9
Max °F 49 48.5 47.5 49.6 52.2 56 59.2 60.2 60.4 58.9 56.8 53.3

The warmest water temperature is in September with an average around 59.7°F / 15.4°C. The coldest month is March with an average water temperature of 46.8°F / 8.2°C.


7 day tide forecast for Porthmadog

MonTueWedThuFriSatSun
  • High 07:56am
    (4.36m)
  • Low 03:15pm
    (1.28m)
  • High 08:16pm
    (4.46m)
  • Low 03:42am
    (1.25m)
  • High 08:34am
    (4.44m)
  • Low 03:56pm
    (1.22m)
  • High 08:51pm
    (4.59m)
  • Low 03:59am
    (1.18m)
  • High 09:32am
    (4.48m)
  • Low 04:11pm
    (1.16m)
  • High 09:47pm
    (4.68m)
  • Low 04:37am
    (1.13m)
  • High 10:05am
    (4.51m)
  • Low 04:48pm
    (1.12m)
  • High 10:20pm
    (4.72m)
  • Low 05:14am
    (1.11m)
  • High 10:39am
    (4.5m)
  • Low 05:25pm
    (1.12m)
  • High 10:53pm
    (4.72m)
  • Low 05:51am
    (1.12m)
  • High 11:12am
    (4.45m)
  • Low 06:02pm
    (1.16m)
  • High 11:26pm
    (4.65m)
  • Low 06:30am
    (1.16m)
  • High 11:46am
    (4.34m)
  • Low 06:41pm
    (1.24m)
  • High 12:00am
    (4.54m)
7 day tide times for Porthmadog

*These tide times are estimates based on the nearest accurate location (Barmouth, Wales) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.