World sea water temperatures

Water temperature in Alpena (MI) in August

Is it warm enough to swim in Alpena in August? Average water temperature in Alpena in August is 69.3°F and therefore suitable for comfortable swimming. The warmest water in Alpena in August is 75.7°F, and the coldest is 61.7°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Alpena

Changes water temperature in Alpena in August 2025, 2024

To get an accurate forecast for the water temperature in Alpena for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Alpena, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of August.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
August 171.4°F74.5°F64°F74.5°F
August 271.2°F74.3°F65.1°F74.3°F
August 371.4°F75.7°F65.7°F75.7°F
August 471.6°F74.5°F65.7°F74.5°F
August 572°F74.1°F65.7°F74.1°F
August 672.5°F74.1°F65.7°F74.1°F
August 773.2°F73.4°F65.7°F73.4°F
August 872.1°F73.4°F66°F73.4°F
August 972.3°F73.4°F66.6°F73.4°F
August 1073.6°F72.9°F66.2°F73.6°F
August 1175.2°F71.1°F66.2°F75.2°F
August 1274.3°F70.5°F66.2°F74.3°F
August 1373.4°F70.5°F64.9°F73.4°F
August 1472.5°F70.3°F64.8°F72.7°F
August 1571.8°F70.9°F64.8°F73°F
Day 2025 2024 Min Max
August 1670.3°F70.2°F64.4°F73.2°F
August 1770°F69.4°F64.2°F73.4°F
August 1869.1°F69.3°F64.2°F73.2°F
August 1967.6°F69.6°F64.4°F73.4°F
August 2067.6°F68.2°F64.9°F73.4°F
August 2168.2°F67.3°F65.7°F72.9°F
August 2268.9°F67.3°F65.8°F73.4°F
August 2368°F67.8°F65.7°F72.3°F
August 2468.2°F68.4°F64.4°F72.9°F
August 2566.7°F68.4°F62.4°F73.4°F
August 2665.3°F69.4°F61.7°F74.5°F
August 2764.4°F69.8°F61.9°F74.3°F
August 2865.3°F69.6°F62.4°F73.9°F
August 2965.8°F69.8°F62.8°F73.6°F
August 3065.3°F69.8°F63.3°F72.9°F
August 3165.7°F70.2°F63.3°F72°F
Alpena water temp chart in August

Average water temperature in Alpena in August over a decade

20162017201820192020
70.9°F67.1°F71.1°F68.9°F71.6°F
20212022202320242025
71.2°F69.8°F68.7°F70.9°F72°F

Alpena sea state in August

Chart comparing the height of waves in Alpena in August over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Alpena in August

Alpena water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in August?

Want to know where the water temperature in August is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in August. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Thunder Bay69.1°F61.9°F75.2°F
Ossineke69.1°F62.1°F75.2°F
Black River68.9°F63.1°F75°F
Harbor View68°F60.8°F74.8°F
Presque Isle Harbor68°F60.8°F74.8°F
Alcona69.1°F63.3°F75°F
Rogers City67.8°F59.9°F73.4°F
Manitou Beach67.8°F60.3°F73.4°F
Evergreen Beach68°F60.3°F73.6°F
Oscoda70°F64.8°F75.7°F

Michigan photo gallery

  • South end in the mouth of Lake Erie taken from Amherst Point Canada
  • Presque Isle sunset
  • Lake Michigan,  South Haven beach
  • Sunset at the Pier in New Buffalo

If you have interesting photos of this place, you can upload them here. Photos will be available to all users after verification by the moderator.

Vote for Michigan best beach

Current rating: (0 votes cast)

If you know this place (Alpena) and want to leave your comment or rate it, then fill out the following form.

Your rating for this place:

Does this place have a "Blue Flag" award [1], are there rip currents and what type of beach is it, sand or pebble:

Is the beach a dog-friendly place, child friendly or a nudist beach?


Your comments for this place (water quality, crowds, facilities, activities, lifeguards, service etc.):



[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

Get widget or API for your website

Our report for Alpena is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

Contact us: admin@seatemperature.info
privacy policy