Greater Napanee
Canada
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Greater Napanee, Canada

In January, the average sea temperature in Greater Napanee, Canada, is 3.3°C (37.9°F). Note: For swimming, this is considered life-threatening and very dangerous. Weather in January »

In Greater Napanee, Canada, the average seawater temperature in February is 2.8°C (37°F). Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Weather in February »

March is the month with the coldest seawater in Greater Napanee, Canada, with an average sea temperature of 1.9°C (35.4°F). Note: For swimming, this is considered life-threatening and very dangerous. Weather in March »

In April, the average sea temperature in Greater Napanee, Canada, is 3.4°C (38.1°F). Note: For swimming, this is considered very dangerous and immediately life-threatening. Weather in April »

In Greater Napanee, Canada, in May, the average water temperature 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 May »

In June, the average sea temperature in Greater Napanee, Canada, is 14.5°C (58.1°F). Note: Swimming in 14.5°C (58.1°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation. Weather in June »

In Greater Napanee, Canada, in July, the average water temperature is 20.8°C (69.4°F). Note: For most, swimming in 20.8°C (69.4°F) is not an enjoyable activity. Weather in July »

With an average sea temperature of 22.3°C (72.1°F), August is the month with the warmest seawater in Greater Napanee, Canada. Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. Weather in August »

In September, the average sea temperature in Greater Napanee, Canada, is 19.8°C (67.6°F). Note: For most, swimming in 19.8°C (67.6°F) is not an enjoyable activity. Weather in September »

In Greater Napanee, Canada, the average seawater temperature in October is 14.2°C (57.6°F). Note: Swimming in 14.2°C (57.6°F) is considered life-threatening. Weather in October »

In Greater Napanee, Canada, in November, the average water temperature is 9.3°C (48.7°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 November »

In December, the average sea temperature in Greater Napanee, Canada, is 5.4°C (41.7°F). Note: Swimming in 5.4°C (41.7°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 December »

When is the sea coldest in Greater Napanee?

The month with the coldest seawater is March, with an average sea temperature of 1.9°C (35.4°F).

When are the longest days in Greater Napanee?

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

What is the month with the warmest sea water in Greater Napanee?

The month with the warmest seawater in Greater Napanee is August, with an average sea temperature of 22.3°C (72.1°F).

What is the month with the shortest days in Greater Napanee?

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

The best month for swimming (with the highest average sea temperature) is August (22.3°C).
The coldest month (with the lowest average sea temperature) is March (1.9°C).

Average daylight - Greater Napanee, Canada