Climate and monthly weather forecast
Greater Napanee, Canada

Weather in January

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

Weather in February

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

Weather in March

The month with the coldest seawater in Greater Napanee, Canada, is March, 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 »

Weather in April

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

Weather in May

In Greater Napanee, Canada, in May, the average water temperature is 5.5°C (41.9°F). Note: Swimming in 5.5°C (41.9°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 »

Weather in June

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

Weather in July

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 »

Weather in August

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

Weather in September

In Greater Napanee, Canada, in September, the average water temperature is 19.8°C (67.6°F). Note: Swimming in 19.8°C (67.6°F) is not enjoyable for the majority. Weather in September »

Weather in October

In Greater Napanee, Canada, the average seawater temperature in October is 14.2°C (57.6°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 »

Weather in November

In November, the average sea temperature in Greater Napanee, Canada, 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 »

Weather in December

In Greater Napanee, Canada, in December, the average water temperature is 5.4°C (41.7°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 December »
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FAQ

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

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

When is Daylight Saving Time (DST) in Greater Napanee?

On Sunday, 13. March 2022, at 2:00 am, Daylight Saving Time starts in Greater Napanee, and the time zone changes from EST to EDT. Daylight Saving Time ends on Sunday, 06. November 2022, at 2:00 am, and the time zone reverts from EDT to EST.

When are the longest days in Greater Napanee?

With an average of 15h and 28min of daylight, June has the longest days of the year in Greater Napanee.

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

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

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

The month with the shortest days in Greater Napanee is December, with an average of 8h and 56min of daylight.

Average sea temperature
Greater Napanee, Canada

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).

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Average daylight
Greater Napanee, Canada

Average daylight - Greater Napanee, Canada

The month with the longest days is June (Average daylight: 15h and 28min).
The month with the shortest days is December (Average daylight: 8h and 56min).

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