Plage Jacques-Cartier Water Temperature & Swim Forecast
Quebec family beach.
Cool water with a light chop and a light breeze — fresh conditions — a wetsuit is recommended.
Model estimate · modelled, not a buoy measurement. How accurate is this?
Location
Plage Jacques-Cartier on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
4/3mm fullsuit
At 14.8°C you need a 4/3mm fullsuit, and many surfers add neoprene boots.
- + Optional 3mm boots
Recommendation tuned for Plage Jacques-Cartier's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.
Plage Jacques-Cartier swimming conditions summary
- Water temperature
- 14.8°C
- Water feels
- Bracing
- Swimmable today
- Only with thermal protection
- Swim conditions score
- 53/100 · Fair
- Wetsuit needed
- 4/3mm fullsuit
- Air temperature
- —
- Waves
- —
- Wind
- —
- UV index
- —
- Average sea temperature (September)
- 15.0 °C
- Warmest months to swim
- July, August, September
At 14.8°C you need a 4/3mm fullsuit, and many surfers add neoprene boots. Model estimate. Water, wave, wind and UV values are Open-Meteo marine/weather model estimates, refreshed hourly — not buoy measurements.
Frequently asked questions
Can I swim at Plage Jacques-Cartier right now?
The sea at Plage Jacques-Cartier is currently 14.8°C — cold swimming conditions. Most swimmers will find the water comfortable when it's above 22°C; below 18°C feels fresh and a wetsuit is recommended.
What will the sea temperature be at Plage Jacques-Cartier next week?
Based on long-term September averages and the latest marine model, expect the sea around Plage Jacques-Cartier to sit close to 12.1°C over the next 7 days. Check the live 7-day chart above for the exact daily outlook.
When is the best month to swim at Plage Jacques-Cartier?
July – August – September are typically the warmest months to swim at Plage Jacques-Cartier, with sea temperatures at their seasonal peak.
Do I need a wetsuit at Plage Jacques-Cartier?
With water currently at 14.8°C: above 22°C no wetsuit needed; 18–22°C a shorty is comfortable for long swims; 14–18°C a 3/2mm full suit; below 14°C a 4/3mm or thicker.
Can I swim at Plage Jacques-Cartier today?
The sea is currently 14.8°C — fair swimming conditions. Acclimatised swimmers will be most comfortable.
- • Located in Quebec, Canada (Gulf of St Lawrence).
- • Family friendly with calm, accessible water.
- • Live data refreshed hourly from Open-Meteo Marine.
Monthly sea temperature averages
Tap any month to see what to expect — based on regional climatology.
Best time to swim in Plage Jacques-Cartier
The sea in Plage Jacques-Cartier peaks in August, when the water averages around 17°C.
On average, 0 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
Outside peak season the water drops toward 6°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable.
The coldest month is typically February at around 3°C, when cold-water swimmers dominate the coast.
Plage Jacques-Cartier sea temperature history
Long-term climatology for Plage Jacques-Cartier shows an annual mean sea temperature of 9°C, ranging from 3°C in winter to 17°C at the summer peak.
The seasonal swing is roughly 14°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Plage Jacques-Cartier, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Plage Jacques-Cartier sea temperature: frequently asked questions
What is the warmest month to swim in Plage Jacques-Cartier?
August is the warmest month in Plage Jacques-Cartier, when the sea averages about 17°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Plage Jacques-Cartier?
The coldest month in Plage Jacques-Cartier is typically February, when the water averages around 3°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Plage Jacques-Cartier without a wetsuit?
The sea in Plage Jacques-Cartier rarely climbs above 20°C, so a wetsuit is recommended year-round for anything longer than a quick dip.
Do I need a wetsuit in Plage Jacques-Cartier?
Outside peak summer the water in Plage Jacques-Cartier drops toward 6°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.
What is the average sea temperature in Plage Jacques-Cartier?
The long-term annual mean sea temperature in Plage Jacques-Cartier is about 9°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Plage Jacques-Cartier?
The live reading at the top of this page shows the current sea temperature in Plage Jacques-Cartier, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Year-round sea temperature
| Month | Sea | Comfort |
|---|---|---|
| Jan | 4°C | Cold |
| Feb | 3°C | Cold |
| Mar | 4°C | Cold |
| Apr | 5°C | Cold |
| May | 8°C | Cold |
| Jun | 12°C | Cold |
| Jul | 16°C | Bracing |
| Aug ⭐ | 17°C | Bracing |
| Sep | 15°C | Bracing |
| Oct | 11°C | Cold |
| Nov | 8°C | Cold |
| Dec | 5°C | Cold |
Nearby beaches
The closest coastline, with live water temperatures.