Can you swim at Thunder Cove in September? — 17.0°C water
Yes, but expect a fresh dip
Average sea · September
17.0°C
Live water now
…
Recommended wetsuit
3/2mm fullsuit
mild
It depends. Thunder Cove sits around 17.0°C in September; confident swimmers will be fine, casual bathers may prefer short sessions.
Monthly averages set expectations, but the specific beach today depends on wind, swell and recent weather. Check the live value at the top of this page or open the Thunder Cove live page for full conditions.
Frequently asked questions
What is the average sea temperature at Thunder Cove in September?
Thunder Cove averages 17.0°C in September, based on long-run climatology for the Gulf of St Lawrence.
Is the sea warm enough to swim at Thunder Cove in September?
It is swimmable but fresh; confident swimmers will be fine without a wetsuit.
Do I need a wetsuit at Thunder Cove in September?
A 2 mm shorty is comfortable for sessions over 30 minutes.
