Weather in May
Welcoming summer's prelude, the month of May in Harpswell, Maine, experiences a significant leap in sea temperatures, reaching an average of 45.9°F (7.7°C). The shift further away from the cold of March is quite perceptible, with longer daylight hours contributing to warmer days. The radiant weather infuses life into the town as it leaves behind the vestiges of the winter. The alteration in weather from April to May directly influences the sea life, instigating an aquatic revival. As the warming trend continues into June, the inhabitants of Harpswell gear up for the typical Maine summer season, filled with the ocean's bounty and vibrant landscapes.
Note: With the appropriate swimsuit, one can swim in 46°F (7.8°C) even if temperatures dip below 50°F (10°C); otherwise, be ready for cold shock and breath issues. A fleeting swim around 55.4°F (13°C) is distressing.
On the first day of May, sunrise is at 5:30 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 8:14 pm EDT.
Ocean temperature
In Harpswell, the average seawater temperature in May is 46°F (7.8°C).Note: With the appropriate swimsuit, one can swim in 46°F (7.8°C) even if temperatures dip below 50°F (10°C); otherwise, be ready for cold shock and breath issues. A fleeting swim around 55.4°F (13°C) is distressing.
Daylight
The average length of the day in May is 14h and 45min.On the first day of May, sunrise is at 5:30 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 8:14 pm EDT.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the water temperature in May?
In Harpswell, the average seawater temperature in May is 46°F (7.8°C). Swimming in 46°F (7.8°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.
How many hours of daylight does Harpswell have in May?
In May, the average day length is 14h and 45min.
When are sunrise and sunset in May?
On the first day of May in Harpswell, sunrise is at 5:30 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 5:00 am and sunset at 8:14 pm EDT.
Average sea temperature in May
Harpswell, ME
- Average sea temperature in May: 45.9°F
The best month for swimming (with the highest average sea temperature) is August (62.2°F).
The coldest month (with the lowest average sea temperature) is March (37.9°F).
Average daylight in May
Harpswell, ME
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
Harpswell, Maine, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location