Nova Scotia sea temperature

Nova Scotia

28 tracked beaches in Nova Scotia, Canada, with live Atlantic Ocean temperatures.

Sea

Atlantic Ocean

Avg sea temp now

16.1°C

Best months

Warmest August

Nova Scotia is a coastal area of Canada on the Atlantic Ocean, with 28 tracked beaches. The sea here ranges from about 3°C in the coolest month to 17°C at the summer peak, with roughly 0 months a year sitting above 20°C — the level most swimmers describe as pleasant without a wetsuit. Use the beach list below to check the current sea temperature at each spot before you head out.

Best time to swim in Nova Scotia

The sea in Nova Scotia peaks in August, when the water averages around 18°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 1°C, when cold-water swimmers dominate the coast.

Nova Scotia sea temperature history

Long-term climatology for Nova Scotia shows an annual mean sea temperature of 8°C, ranging from 1°C in winter to 18°C at the summer peak.

The seasonal swing is roughly 17°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 Nova Scotia, 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

2°C

Feb

1°C

Mar

1°C

Apr

3°C

May

7°C

Jun

11°C

Jul

16°C

Aug

18°C

Sep

16°C

Oct

12°C

Nov

8°C

Dec

4°C

Values are area averages; individual beaches vary by exposure and depth.

Nova Scotia sea temperature: frequently asked questions

What is the warmest month to swim in Nova Scotia?

August is the warmest month in Nova Scotia, when the sea averages about 18°C. Late-season warmth often persists a few weeks after peak.

When is the sea coldest in Nova Scotia?

The coldest month in Nova Scotia is typically February, when the water averages around 1°C. Cold-water swimmers and surfers dominate this period.

When can you swim in Nova Scotia without a wetsuit?

The sea in Nova Scotia 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 Nova Scotia?

Outside peak summer the water in Nova Scotia 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 Nova Scotia?

The long-term annual mean sea temperature in Nova Scotia is about 8°C, based on multi-decadal climatology of the surrounding waters.

How do I check the current sea temperature in Nova Scotia?

The live reading at the top of this page shows the current sea temperature in Nova Scotia, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.

Swimming in the Nova Scotia — FAQ

How warm is the sea in the Nova Scotia in September?

The Atlantic Ocean off the Nova Scotia averages about 16.0°C in September, based on long-term monthly averages for this coast.

When is the best time to swim in the Nova Scotia?

The Nova Scotia is warmest in August (around 18.0°C) and coldest in February (around 1.0°C). There are typically 0 months a year when the water sits above 22°C.

What is the average yearly sea temperature in the Nova Scotia?

Across all twelve months, the sea in the Nova Scotia averages about 8.3°C.

Do you need a wetsuit to swim in the Nova Scotia?

The sea in the Nova Scotia stays below 22°C even at its warmest (~18.0°C in August), so a 3/2mm or thicker wetsuit is recommended for longer swims year-round.