Swimming in Portland in may 2025: Average sea temperature in may and tide times in may 2025
Average sea temperature in Portland in may 2025.
In may, according to seasonal norms, the sea temperature in Portland is:
Minimum: 49°F
Average: 53°F
Maximum: 58°F
Other useful seasonal weather averages in may:
- Outside temperature: 53°F to 68°F
- Most common weather: "Clear/Sunny"
- The wind blows at 7.5mph
- It rains a total of 4.1in, over 7 day(s).
Should we swim in Portland in may?
No... The water temperature in Portland in may is freezing
You won't be able to swim in Portland in may! The water temperature is freezing, reaching as low as 49°F (and only 58°F at best)! Our advice: if you are going to Portland this month, plan to sightsee and forget the beach!
Note also that in may, the climate is good with an average outside temperature of 61°F, 4in of precipitation (over 7 days) and 79.74 % humidity.
Water and normal seasonal temperatures in Portland in may
| May | |||
| Average sea temperature | 53°F | ||
| Minimum sea temperature | 49°F | ||
| Maximum sea temperature | 58°F | ||
| Average outside temperature | 61°F | ||
| Maximum outside temperature | 68°F | ||
| Minimum outside temperature | 54°F | ||
| Wind speed | 6.8mph | ||
| Wind temperature | 54°F | ||
| Precipitation | 4.1in | ||
| Number of days of rain | 7 jour(s) (23%) | ||
| Humidity | 80% | ||
| Visibility in kilometers | 8.61km | ||
| Cloud cover | 44% | ||
| Our opinion | freezing swimming |
Chart of the tides in may 2025
Tide times in may 2025 in Portland
Swim elsewhere in the United States (USA) in may
| City | Average T° | Min. T° | Max. T° | Our opinion | California in may | 62°F | 66°F | cold swimming | Washington D. C. in may | 58°F | 65°F | freezing swimming | Boston in may | 49°F | 55°F | freezing swimming | Miami (Florida) in may | 82°F | 85°F | ideal swimming | New York City in may | 53°F | 60°F | freezing swimming | Seattle in may | 47°F | 49°F | freezing swimming | Houston in may | 78°F | 83°F | pleasant swimming | Long Beach (Washington) in may | 54°F | 60°F | freezing swimming | Myrtle Beach in may | 71°F | 77°F | pleasant swimming | Philadelphia in may | 54°F | 61°F | freezing swimming | Atlantic City in may | 56°F | 64°F | freezing swimming | Baltimore in may | 57°F | 63°F | freezing swimming | Bar Harbor (Maine) in may | 45°F | 49°F | freezing swimming | Brooklyn in may | 54°F | 62°F | freezing swimming | Cape Cod National Seashore in may | 50°F | 55°F | freezing swimming | Carolina Beach in may | 71°F | 78°F | pleasant swimming | Gulf Shores (Alabama) in may | 77°F | 84°F | pleasant swimming | Hampton Beach in may | 48°F | 54°F | freezing swimming | Maryland in may | 56°F | 63°F | freezing swimming | Mobile (Alabama) in may | 77°F | 84°F | pleasant swimming |
Swim in the United States (USA) in may: sea temperature by city