Swimming in Belfast in july 2025: Average sea temperature in july and tide times in july 2025
Average sea temperature in Belfast in july 2025.
In july, according to seasonal norms, the sea temperature in Belfast is:
Minimum: 54°F
Average: 57°F
Maximum: 60°F
Other useful seasonal weather averages in july:
- Outside temperature: 56°F to 64°F
- Most common weather: "Moderate rain at times"
- The wind blows at 7.5mph
- It rains a total of 5.1in, over 9 day(s).
Should we swim in Belfast in july?
No... The water temperature in Belfast in july is freezing
You won't be able to swim in Belfast in july! The water temperature is freezing, reaching as low as 54°F (and only 60°F at best)! Our advice: if you are going to Belfast this month, plan to sightsee and forget the beach!
Note also that in july, the climate is tolerable with an average outside temperature of 60°F, 5.1in of precipitation (over 9 days) and 92.44 % humidity.
Water and normal seasonal temperatures in Belfast in july
| July | |||
| Average sea temperature | 57°F | ||
| Minimum sea temperature | 54°F | ||
| Maximum sea temperature | 60°F | ||
| Average outside temperature | 61°F | ||
| Maximum outside temperature | 65°F | ||
| Minimum outside temperature | 56°F | ||
| Wind speed | 11.2mph | ||
| Wind temperature | 54°F | ||
| Precipitation | 5.1in | ||
| Number of days of rain | 9 jour(s) (30%) | ||
| Humidity | 93% | ||
| Visibility in kilometers | 8.6km | ||
| Cloud cover | 58% | ||
| Our opinion | freezing swimming |
Chart of the tides in july 2025
Tide times in july 2025 in Belfast
Swim elsewhere in Northern Ireland in july
| City | Average T° | Min. T° | Max. T° | Our opinion | Derry (Londonderry) in july | 57°F | 60°F | freezing swimming | Portrush in july | 57°F | 59°F | freezing swimming | Portstewart in july | 56°F | 59°F | freezing swimming |