Llansteffan Sea Temperature

(Today) 2024

15.1°C / 59.1°F

The water will feel medium. The water will feel a bit chilly in just bathers / swimming costume. If you plan on wearing a wetsuit 4/3mm should be thick enough.

Current weather

9°C / 48°F
(broken clouds)
Partly cloudy
Wind
11 mph
Humidity
81%

The measurements for the water temperature in Llansteffan, 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.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

Water temp by month

Monthly average max / min water temperatures

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

Llansteffan average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Llansteffan
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 7.6 7.6 7.6 8.2 10.1 11.8 13.8 15.5 15.4 13.8 12.3 9.7
Max °C 10.4 9.8 9.3 11 12.3 15.1 17 17.2 17.1 16.1 14.6 12.8
Min °F 46.8 46.6 46.3 47.9 51.1 54.5 58.1 60.5 60.4 57.7 55 50.7
Max °F 49.6 48.8 48 50.7 53.3 57.8 61.3 62.2 62.1 60 57.3 53.8

The warmest water temperature is in August with an average around 61.3°F / 16.3°C. The coldest month is March with an average water temperature of 47.1°F / 8.4°C.


7 day tide forecast for Llansteffan

SatSunMonTueWedThuFri
  • High 01:13am
    (4.41m)
  • Low 09:00am
    (1.74m)
  • High 02:08pm
    (4.73m)
  • Low 09:49pm
    (1.54m)
  • High 03:00am
    (4.7m)
  • Low 10:18am
    (1.5m)
  • High 03:36pm
    (5.28m)
  • Low 10:49pm
    (1.18m)
  • High 04:11am
    (5.37m)
  • Low 11:08am
    (1.12m)
  • High 04:34pm
    (6.01m)
  • Low 11:31pm
    (0.78m)
  • High 05:02am
    (6.08m)
  • Low 11:47am
    (0.73m)
  • High 05:22pm
    (6.71m)
  • Low 12:07am
    (0.44m)
  • High 05:47am
    (6.72m)
  • Low 12:22pm
    (0.41m)
  • High 06:07pm
    (7.25m)
  • Low 12:40am
    (0.19m)
  • High 06:29am
    (7.17m)
  • Low 12:56pm
    (0.19m)
  • High 06:50pm
    (7.58m)
  • Low 02:38am
    (0.07m)
  • High 07:17am
    (7.41m)
  • Low 02:53pm
    (0.1m)
  • High 07:38pm
    (7.66m)
7 day tide times for Llansteffan

*These tide times are estimates based on the nearest accurate location (Mumbles, 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.