Swimming in the United States (USA) in september 2024 Sea temperature by city in september
Do you want to go to the beach in the United States (USA) in september 2024? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in september in the United States (USA) by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in the United States (USA) in september 2024
Here, find the average sea temperature in the United States (USA) in september in several coastal cities.
California
Washington D. C.
75°F
min: 72°F / max: 77°F
details about the sea temperature in Washington D. C. in septemberBoston
Hawaii (Honolulu)
81°F
min: 79°F / max: 83°F
details about the sea temperature in Hawaii (Honolulu) in septemberMiami (Florida)
86°F
min: 84°F / max: 87°F
details about the sea temperature in Miami (Florida) in septemberNew York City
70°F
min: 67°F / max: 74°F
details about the sea temperature in New York City in septemberSeattle
Houston
Long Beach (Washington)
58°F
min: 54°F / max: 60°F
details about the sea temperature in Long Beach (Washington) in septemberMyrtle Beach
81°F
min: 78°F / max: 83°F
details about the sea temperature in Myrtle Beach in septemberPhiladelphia
72°F
min: 68°F / max: 76°F
details about the sea temperature in Philadelphia in septemberPortland
Atlantic City
72°F
min: 67°F / max: 76°F
details about the sea temperature in Atlantic City in septemberBaltimore
Bar Harbor (Maine)
56°F
min: 53°F / max: 59°F
details about the sea temperature in Bar Harbor (Maine) in septemberBrooklyn
Cape Cod National Seashore
65°F
min: 61°F / max: 68°F
details about the sea temperature in Cape Cod National Seashore in septemberCarolina Beach
81°F
min: 79°F / max: 83°F
details about the sea temperature in Carolina Beach in septemberDauphin Island (Alabama)
84°F
min: 81°F / max: 86°F
details about the sea temperature in Dauphin Island (Alabama) in septemberEdisto Beach
82°F
min: 80°F / max: 85°F
details about the sea temperature in Edisto Beach in septemberWhere should you go swimming in the United States (USA) in the month of september?
Swimming in the United States (USA) in september is ideal (in the best case scenario)
In september in the United States (USA) swimming conditions vary by city. Details below:
In september in Hawaii (Honolulu), Miami (Florida), Houston, Myrtle Beach, Carolina Beach, Dauphin Island (Alabama) and Edisto Beach, swimming conditions are perfect! With water reaching a maximum of 83°F and an average of 81°F, going in the water (and staying there!) feels great.
As for Washington D. C., New York City, Philadelphia, Atlantic City, Baltimore and Brooklyn, swimming is pleasant in september. The sea water is 75°F on average (min: 72°F/max: 77°F) so you can easily spend time in the water.
Swimming in september in California, Boston and Cape Cod National Seashore is possible but the sea is generally cool. So though the sea temperature may sometimes reach 70°F, it can also go as low as 64°F. Note that the average is 67°F.
Forget about swimming in Seattle, Long Beach (Washington), Portland and Bar Harbor (Maine) in september! The water temperature is freezing, reaching as low as 52°F (and only 56°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!
Where to go swimming in the United States (USA) in september: the map of sea temperatures
Water temperature and seasonal norms in september
California
September | |||
Average sea temperature | 67°F | ||
Minimum sea temperature | 64°F | ||
Maximum sea temperature | 70°F | ||
Average outside temperature | 85°F | ||
Maximum outside temperature | 99°F | ||
Minimum outside temperature | 72°F | ||
Precipitation | 0.3in | ||
Number of days of precipitation | 0 jour(s) (1%) | ||
Cloud cover | 5% | ||
Our opinion | cool swimming |
More information on swimming in California in september
Washington D. C.
September | |||
Average sea temperature | 75°F | ||
Minimum sea temperature | 72°F | ||
Maximum sea temperature | 77°F | ||
Average outside temperature | 74°F | ||
Maximum outside temperature | 83°F | ||
Minimum outside temperature | 67°F | ||
Precipitation | 4.7in | ||
Number of days of precipitation | 6 jour(s) (19%) | ||
Cloud cover | 35% | ||
Our opinion | pleasant swimming |
More information on swimming in Washington D. C. in september
Boston
September | |||
Average sea temperature | 65°F | ||
Minimum sea temperature | 62°F | ||
Maximum sea temperature | 68°F | ||
Average outside temperature | 70°F | ||
Maximum outside temperature | 76°F | ||
Minimum outside temperature | 63°F | ||
Precipitation | 3.1in | ||
Number of days of precipitation | 4 jour(s) (13%) | ||
Cloud cover | 36% | ||
Our opinion | cool swimming |
More information on swimming in Boston in september
Hawaii (Honolulu)
September | |||
Average sea temperature | 81°F | ||
Minimum sea temperature | 79°F | ||
Maximum sea temperature | 83°F | ||
Average outside temperature | 81°F | ||
Maximum outside temperature | 83°F | ||
Minimum outside temperature | 79°F | ||
Precipitation | 2.6in | ||
Number of days of precipitation | 3 jour(s) (11%) | ||
Cloud cover | 33% | ||
Our opinion | ideal swimming |
More information on swimming in Hawaii (Honolulu) in september
Miami (Florida)
September | |||
Average sea temperature | 86°F | ||
Minimum sea temperature | 84°F | ||
Maximum sea temperature | 87°F | ||
Average outside temperature | 86°F | ||
Maximum outside temperature | 88°F | ||
Minimum outside temperature | 85°F | ||
Precipitation | 9.8in | ||
Number of days of precipitation | 19 jour(s) (62%) | ||
Cloud cover | 30% | ||
Our opinion | ideal swimming |
More information on swimming in Miami (Florida) in september
List of coastal cities in the United States (USA)
California in september | cool swimming |
Washington D. C. in september | pleasant swimming |
Boston in september | cool swimming |
Hawaii (Honolulu) in september | ideal swimming |
Miami (Florida) in september | ideal swimming |
New York City in september | pleasant swimming |
Seattle in september | freezing swimming |
Houston in september | ideal swimming |
Long Beach (Washington) in september | freezing swimming |
Myrtle Beach in september | ideal swimming |
Philadelphia in september | pleasant swimming |
Portland in september | freezing swimming |
Atlantic City in september | pleasant swimming |
Baltimore in september | pleasant swimming |
Bar Harbor (Maine) in september | freezing swimming |
Brooklyn in september | pleasant swimming |
Cape Cod National Seashore in september | cool swimming |
Carolina Beach in september | ideal swimming |
Dauphin Island (Alabama) in september | ideal swimming |
Edisto Beach in september | ideal swimming |