Swimming in Cardiff in july 2025: Average sea temperature in july and tide times in july 2025
Average sea temperature in Cardiff in july 2025.
In july, according to seasonal norms, the sea temperature in Cardiff is:
Minimum: 58°F
Average: 61°F
Maximum: 63°F
Other useful seasonal weather averages in july:
- Outside temperature: 59°F to 67°F
- Most common weather: "Partly Cloudy"
- The wind blows at 8.7mph
- It rains a total of 2.4in, over 3 day(s).
Should we swim in Cardiff in july?
No... The water temperature in Cardiff in july is cold
Swimming in Cardiff in july is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average sea temperature of 61°F (minimum: 58°F - maximum: 63°F).
Note also that in july, the climate is good with an average outside temperature of 63°F, 2.3in of precipitation (over 3 days) and 88.92 % humidity.
Water and normal seasonal temperatures in Cardiff in july
| July | |||
| Average sea temperature | 61°F | ||
| Minimum sea temperature | 58°F | ||
| Maximum sea temperature | 63°F | ||
| Average outside temperature | 63°F | ||
| Maximum outside temperature | 68°F | ||
| Minimum outside temperature | 59°F | ||
| Wind speed | 12.4mph | ||
| Wind temperature | 58°F | ||
| Precipitation | 2.4in | ||
| Number of days of rain | 3 jour(s) (11%) | ||
| Humidity | 89% | ||
| Visibility in kilometers | 9.11km | ||
| Cloud cover | 48% | ||
| Our opinion | cold swimming |
Chart of the tides in july 2025
Tide times in july 2025 in Cardiff
Swim elsewhere in Wales in july
| City | Average T° | Min. T° | Max. T° | Our opinion | Pembrokeshire in july | 60°F | 63°F | cold swimming | Swansea in july | 61°F | 64°F | cold swimming | Barmouth in july | 59°F | 61°F | freezing swimming | Llandudno in july | 60°F | 63°F | cold swimming |