Weather in May
Sea temperature
In Greater Napanee, Canada, the average seawater temperature in May 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.
Daylight
In May, the average length of the day is 14h and 47min.On the first day of May in Greater Napanee, sunrise is at 5:58 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:43 pm EDT.
FAQ
What is the sea water temperature in May in Greater Napanee?
In Greater Napanee, Canada, in May, the average water temperature is 5.5°C (41.9°F). Swimming in 5.5°C (41.9°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.
What is the average length of the day in May in Greater Napanee?
In May, the average day length in Greater Napanee, Canada, is 14h and 47min.
When is the sunrise / sunset in May in Greater Napanee?
On the first day of May in Greater Napanee, Canada, sunrise is at 5:58 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:43 pm EDT.
Average sea temperature in May
Greater Napanee, Canada
- Average sea temperature in May: 5.5°C
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 in May
Greater Napanee, Canada
- Average daylight in May: 14h and 47min
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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