Swimming in Portstewart in june 2025: Average sea temperature in june and tide times in june 2025
Average sea temperature in Portstewart in june 2025.
In june, according to seasonal norms, the sea temperature in Portstewart is:
Minimum: 50°F
Average: 53°F
Maximum: 58°F
Other useful seasonal weather averages in june:
- Outside temperature: 53°F to 59°F
- Most common weather: "Moderate rain at times"
- The wind blows at 6.2mph
- It rains a total of 4.9in, over 9 day(s).
Should we swim in Portstewart in june?
No... The water temperature in Portstewart in june is freezing
You won't be able to swim in Portstewart in june! The water temperature is freezing, reaching as low as 50°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 june, the climate is tolerable with an average outside temperature of 56°F, 4.9in of precipitation (over 9 days) and 89.21 % humidity.
Water and normal seasonal temperatures in Portstewart in june
| June | |||
| Average sea temperature | 53°F | ||
| Minimum sea temperature | 50°F | ||
| Maximum sea temperature | 58°F | ||
| Average outside temperature | 58°F | ||
| Maximum outside temperature | 59°F | ||
| Minimum outside temperature | 54°F | ||
| Wind speed | 13.1mph | ||
| Wind temperature | 50°F | ||
| Precipitation | 4.9in | ||
| Number of days of rain | 9 jour(s) (28%) | ||
| Humidity | 90% | ||
| Visibility in kilometers | 8.96km | ||
| Cloud cover | 57% | ||
| Our opinion | freezing swimming |
Chart of the tides in june 2025
Tide times in june 2025 in Portstewart
Swim elsewhere in Northern Ireland in june
| City | Average T° | Min. T° | Max. T° | Our opinion | Belfast in june | 54°F | 58°F | freezing swimming | Derry (Londonderry) in june | 54°F | 58°F | freezing swimming | Portrush in june | 54°F | 57°F | freezing swimming |