World Resorts USA Harbor Springs Weather

Harbor Springs Sea Temperature in September

Average sea water temperature in September:
+66.8°F
Minimum sea water temperature in September: 71.8°F
Maximum sea water temperature in September: 62.4°F

Daily sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 65.2°F. The highest and lowest sea temperatures during the month were 67.8°F and 63.7°F.

Monthly sea water temperature in Harbor Springs, °F

Which USA resorts have warmest sea in September?

Place name September 2025 September 2024
Key West 86.9°F 87.4°F
Islamorada 86.7°F 87.3°F
Key Largo 86.6°F 87.1°F
Fort Lauderdale 86.4°F 86.4°F
West Palm Beach 86.2°F 86.4°F
Everglades 86.2°F 87.0°F
Miami Beach 86.1°F 86.3°F
Naples 86.1°F 87.2°F
Marco Island 86.0°F 87.2°F
South Padre Island 86.0°F 85.8°F
Corpus Christi 85.8°F 84.7°F
Miami 85.8°F 86.0°F
Sanibel Island 85.7°F 87.0°F
Galveston Island 85.5°F 84.4°F
Galveston 85.5°F 83.7°F
Houston 84.9°F 83.4°F
Siesta Key 84.9°F 86.8°F
Sarasota 84.8°F 86.7°F
Cocoa Beach 84.6°F 85.2°F
Tampa 84.3°F 86.0°F

Best time for vacation in Harbor Springs

Sunniest months:
August 14 days
September 13 days
July 13 days
Warmest months:
August 74.9 °F
July 74.6 °F
June 69.4 °F
Warmest sea temp:
August 70.5 °F
July 67.5 °F
September 66.8 °F
Coldest months:
February 25.4 °F
January 25.8 °F
December 32.1 °F
Rainiest months:
March 2 days
July 2 days
May 2 days
Windiest months:
November 10.9 mph
December 10.5 mph
February 10.2 mph

Harbor Springs on a weather map

Harbor Springs
+23°F
E 11 mph
Feels like: +10°F
Precip.: 100%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+66°F
+70°F
+70°F
+70°F
+70°F
+30°F
+79°F
+52°F
+59°F
+57°F
+55°F
+25°F
24 Hours Forecast
Harbor Springs
Local time: 17:56
December 30, tuesday
1800
23°F
E
11 mph
2100
23°F
SE
9 mph
December 31, wednesday
0000
21°F
SE
7 mph
0300
21°F
SE
11 mph
0600
19°F
SE
13 mph
0900
18°F
SE
12 mph
1200
18°F
SE
17 mph
1500
16°F
SE
19 mph
Units of measurement: °C / °F