May
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) at temperatures under 10°C (50°F) requires thermal swimsuits; otherwise, one can face cold shock and breathing difficulty. Even brief immersion at 13°C (55.4°F) feels frosty.
Daylight
The average length of the day in May is 14h and 47min.On the first day of May, sunrise is at 5:57 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:44 pm EDT.
Updated: Aug 29, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the sea water temperature in May?
In Greater Napanee, the average seawater temperature in May is 5.5°C (41.9°F). 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.
How many hours of daylight does Greater Napanee have in May?
In Greater Napanee, the average day length in May is 14h and 47min.
What time are sunrise and sunset in May?
On the first day of May, sunrise is at 5:57 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 8:44 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 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
