Swimming in Portstewart in october 2025: Average sea temperature in october and tide times in october 2025
Average sea temperature in Portstewart in october 2025.
In october, according to seasonal norms, the sea temperature in Portstewart is:
Minimum: 54°F
Average: 56°F
Maximum: 58°F
Other useful seasonal weather averages in october:
- Outside temperature: 50°F to 55°F
- Most common weather: "Cloudy"
- The wind blows at 5mph
- It rains a total of 5.2in, over 8 day(s).
Should we swim in Portstewart in october?
No... The water temperature in Portstewart in october is freezing
You won't be able to swim in Portstewart in october! The water temperature is freezing, reaching as low as 54°F (and only 58°F at best)! Our advice: if you are going to Portstewart this month, plan to sightsee and forget the beach!
Note also that in october, the climate is tolerable with an average outside temperature of 53°F, 5.1in of precipitation (over 8 days) and 87.77 % humidity.
Water and normal seasonal temperatures in Portstewart in october
| October | |||
| Average sea temperature | 56°F | ||
| Minimum sea temperature | 54°F | ||
| Maximum sea temperature | 58°F | ||
| Average outside temperature | 54°F | ||
| Maximum outside temperature | 56°F | ||
| Minimum outside temperature | 50°F | ||
| Wind speed | 17.4mph | ||
| Wind temperature | 47°F | ||
| Precipitation | 5.2in | ||
| Number of days of rain | 8 jour(s) (27%) | ||
| Humidity | 88% | ||
| Visibility in kilometers | 9.07km | ||
| Cloud cover | 61% | ||
| Our opinion | freezing swimming |
Chart of the tides in october 2025
Tide times in october 2025 in Portstewart
Swim elsewhere in Northern Ireland in october
| City | Average T° | Min. T° | Max. T° | Our opinion | Belfast in october | 56°F | 58°F | freezing swimming | Derry (Londonderry) in october | 56°F | 58°F | freezing swimming | Portrush in october | 56°F | 58°F | freezing swimming |
Swim in Northern Ireland in october: sea temperature by city