Canada
Quebec · Gulf of St Lawrence

Plage de Cap Chat Water Temperature & Swim Forecast

Quebec family beach.

Cool water with a light chop and a light breeze — fresh conditions — a wetsuit is recommended.

Sea temperature now
15.7°Cmild
Fair
Source: Open-Meteo Marine

Model estimate · modelled, not a buoy measurement. How accurate is this?

Air temperature
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Wave height
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Wind
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UV index
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Location

Plage de Cap Chat on the map, with nearby beaches and live sea temperatures.

7-day forecast

Water, air, waves, wind and UV outlook for the week ahead.

Wetsuit recommendation

4/3mm fullsuit

At 15.7°C you need a 4/3mm fullsuit, and many surfers add neoprene boots.

  • + Optional 3mm boots
Surf & watersports
Cool water — the classic UK/Atlantic spring or Pacific Northwest summer range. A 4/3mm sealed-seam suit keeps you in the water for 90+ minutes. Boots prevent foot pain on rocky entries and extend session length.
Open-water swimming
Acclimatised swimmers manage 30 minutes; a thicker swim wetsuit (3/2) helps.

Recommendation tuned for Plage de Cap Chat's current water temperature. Individual tolerance, wind chill, and session length all matter — when in doubt, size up.

Plage de Cap Chat swimming conditions summary

Water temperature
15.7°C
Water feels
Refreshing
Swimmable today
Only with thermal protection
Swim conditions score
56/100 · Fair
Wetsuit needed
4/3mm fullsuit
Air temperature
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Waves
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Wind
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UV index
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Average sea temperature (September)
15.0 °C
Warmest months to swim
July, August, September

At 15.7°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 de Cap Chat right now?

The sea at Plage de Cap Chat is currently 15.7°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 de Cap Chat next week?

Based on long-term September averages and the latest marine model, expect the sea around Plage de Cap Chat 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 de Cap Chat?

July – August – September are typically the warmest months to swim at Plage de Cap Chat, with sea temperatures at their seasonal peak.

Do I need a wetsuit at Plage de Cap Chat?

With water currently at 15.7°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.

Quick answer

Can I swim at Plage de Cap Chat today?

The sea is currently 15.7°C — fair swimming conditions. Acclimatised swimmers will be most comfortable.

Key takeaways
  • • 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.

3°C → 17°C· Current month outlined· “Best” = within 2°C of the annual peak

Best time to swim in Plage de Cap Chat

The sea in Plage de Cap Chat 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 de Cap Chat sea temperature history

Long-term climatology for Plage de Cap Chat 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 de Cap Chat, 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.

Jan
4°C
Feb
3°C
Mar
4°C
Apr
5°C
May
8°C
Jun
12°C
Jul
16°C
Aug
17°C
Sep
15°C
Oct
11°C
Nov
8°C
Dec
5°C

Plage de Cap Chat sea temperature: frequently asked questions

What is the warmest month to swim in Plage de Cap Chat?

August is the warmest month in Plage de Cap Chat, when the sea averages about 17°C. Late-season warmth often persists a few weeks after peak.

When is the sea coldest in Plage de Cap Chat?

The coldest month in Plage de Cap Chat is typically February, when the water averages around 3°C. Cold-water swimmers and surfers dominate this period.

When can you swim in Plage de Cap Chat without a wetsuit?

The sea in Plage de Cap Chat 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 de Cap Chat?

Outside peak summer the water in Plage de Cap Chat 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 de Cap Chat?

The long-term annual mean sea temperature in Plage de Cap Chat is about 9°C, based on multi-decadal climatology of the surrounding waters.

How do I check the current sea temperature in Plage de Cap Chat?

The live reading at the top of this page shows the current sea temperature in Plage de Cap Chat, 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

MonthSeaComfort
Jan4°CCold
Feb3°CCold
Mar4°CCold
Apr5°CCold
May8°CCold
Jun12°CCold
Jul16°CBracing
Aug ⭐17°CBracing
Sep15°CBracing
Oct11°CCold
Nov8°CCold
Dec5°CCold

Nearby beaches

The closest coastline, with live water temperatures.