Dartmouth
Canada
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Dartmouth, Canada

In January, the average sea temperature in Dartmouth, Canada, is 2.8°C (37°F). Note: For swimming, this is considered very dangerous and immediately life-threatening. Weather in January »

February is the month with the coldest seawater in Dartmouth, Canada, with an average sea temperature of 0.8°C (33.4°F). Note: For swimming, this is considered life-threatening and very dangerous. Weather in February »

In Dartmouth, Canada, in March, the average water temperature is 1°C (33.8°F). Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Weather in March »

In Dartmouth, Canada, in April, the average water temperature is 2.8°C (37°F). Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. Weather in April »

In May, the average sea temperature in Dartmouth, Canada, is 5.3°C (41.5°F). Note: Swimming in 5.3°C (41.5°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique. Weather in May »

In June, the average sea temperature in Dartmouth, Canada, is 9.4°C (48.9°F). Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in June »

In Dartmouth, Canada, the average seawater temperature in July is 14.1°C (57.4°F). Note: Swimming in 14.1°C (57.4°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in July »

August is the month with the warmest seawater in Dartmouth, Canada, with an average sea temperature of 17.2°C (63°F). Note: For most, swimming in 17.2°C (63°F) is not an enjoyable activity. Weather in August »

In Dartmouth, Canada, in September, the average water temperature is 16.6°C (61.9°F). Note: For swimming, a surface water temperature of 16.6°C (61.9°F) is not enjoyable for the majority. Weather in September »

In Dartmouth, Canada, in October, the average water temperature is 13.8°C (56.8°F). Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in October »

In November, the average sea temperature in Dartmouth, Canada, is 9.2°C (48.6°F). Note: Swimming in 9.2°C (48.6°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique. Weather in November »

In December, the average sea temperature in Dartmouth, Canada, is 5.5°C (41.9°F). Note: At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in December »

What is the month with the coldest sea water in Dartmouth?

With an average sea temperature of 0.8°C (33.4°F), February is the month with the coldest seawater in Dartmouth.

When are the longest days in Dartmouth?

The month with the longest days in Dartmouth is June, with an average of 15.5h of daylight.

What is the month with the warmest sea water in Dartmouth?

The month with the warmest seawater is August, with an average sea temperature of 17.2°C (63°F).

What is the month with the shortest days in Dartmouth?

December has the shortest days of the year in Dartmouth, Canada, with an average of 8.9h of daylight.
Average sea temperature - Dartmouth, Canada

The best month for swimming (with the highest average sea temperature) is August (17.2°C).
The coldest month (with the lowest average sea temperature) is February (0.8°C).

Average daylight - Dartmouth, Canada