Swimming in Pembrokeshire in september 2025: Average sea temperature in september and tide times in september 2025

Average sea temperature in Pembrokeshire in september 2025.

In september, according to seasonal norms, the sea temperature in Pembrokeshire is:

Minimum: 60°F

Average: 61°F

Maximum: 63°F

Other useful seasonal weather averages in september:

  • Outside temperature: 58°F to 62°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at 8.1mph
  • It rains a total of 4.8in, over 8 day(s).

Should we swim in Pembrokeshire in september?

No... The water temperature in Pembrokeshire in september is cold

Swimming in Pembrokeshire in september is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average sea temperature of 61°F (minimum: 60°F - maximum: 63°F).

Note also that in september, the climate is good with an average outside temperature of 60°F, 4.8in of precipitation (over 8 days) and 85.92 % humidity.

Water and normal seasonal temperatures in Pembrokeshire in september

September
Average sea temperature 61°F
Minimum sea temperature 60°F
Maximum sea temperature 63°F
Average outside temperature 61°F
Maximum outside temperature 63°F
Minimum outside temperature 59°F
Wind speed 17.4mph
Wind temperature 56°F
Precipitation 4.8in
Number of days of rain 8 jour(s)
(25%)
Humidity 86%
Visibility in kilometers 9.3km
Cloud cover 48%
Our opinion cold swimming

Chart of the tides in september 2025

Tide times in september 2025 in Pembrokeshire

Swim elsewhere in Wales in september

City Average T° Max. T° Our opinion
Cardiff in september62°F64°Fcold swimming
Swansea in september62°F64°Fcold swimming
Barmouth in september61°F62°Fcold swimming
Llandudno in september61°F63°Fcold swimming

Swim in Wales in september: sea temperature by city

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