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Water temperature in Oak Street Beach (IL) in August

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Is it warm enough to swim in Oak Street Beach in August? Average water temperature in Oak Street Beach in August is 73.2°F and therefore suitable for comfortable swimming. The warmest water in Oak Street Beach in August is 77.5°F, and the coldest is 64.2°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Oak Street Beach

Changes water temperature in Oak Street Beach in August 2025, 2024

To get an accurate forecast for the water temperature in Oak Street Beach for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Oak Street Beach, 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 174.7°F76.3°F68.2°F76.6°F
August 273.8°F75.6°F69.1°F77°F
August 374.3°F75.6°F69.6°F77.2°F
August 473.9°F76.5°F70°F77.2°F
August 574.7°F76.5°F70.5°F76.8°F
August 675.2°F76.1°F70.5°F76.8°F
August 777.5°F75.4°F70.5°F77.5°F
August 876.3°F75.6°F70.7°F77.2°F
August 976.1°F75°F67.8°F76.1°F
August 1075.9°F74.3°F68.4°F75.9°F
August 1175.7°F73.8°F69.4°F75.7°F
August 1275.6°F73.6°F69.4°F76.3°F
August 1375.2°F73.9°F69.4°F76.6°F
August 1475°F74.3°F69.3°F76.5°F
August 1575.6°F73.9°F69.1°F76.6°F
Day 2025 2024 Min Max
August 1678.1°F73.8°F70°F78.1°F
August 1776.1°F73.6°F70.5°F77°F
August 1876.1°F73.9°F70.7°F76.5°F
August 1975.7°F73.8°F71.1°F77°F
August 2074.5°F73.2°F71.2°F76.6°F
August 2172.9°F72.9°F71.1°F75.9°F
August 2273.8°F72.5°F71.1°F75°F
August 2374.1°F72.7°F71.1°F74.8°F
August 2473.4°F73.2°F70.7°F75.6°F
August 2572.7°F74.1°F70.3°F76.3°F
August 2671.6°F74.8°F69.4°F75.9°F
August 2770.5°F75.2°F69.4°F75.9°F
August 2870°F74.3°F69.4°F76.8°F
August 2970.2°F75.6°F66.9°F75.9°F
August 3070.9°F76.1°F65.1°F76.1°F
August 3170.3°F75.4°F64.2°F75.4°F
Oak Street Beach water temp chart in August

Average water temperature in Oak Street Beach in August over a decade

20162017201820192020
73.8°F72°F74.5°F73.6°F74.5°F
20212022202320242025
74.1°F71.1°F72.7°F74.5°F75.2°F

Oak Street Beach sea state in August

Chart comparing the height of waves in Oak Street Beach 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 Oak Street Beach in August

Oak Street Beach 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
North Avenue Beach73.2°F64.2°F77.5°F
Foster Beach73°F64°F77.4°F
South Shore Beach73.2°F67.1°F78.1°F
Calumet Park73.4°F67.5°F78.1°F
Gary73.2°F68.4°F77.2°F
Ogden Dunes73.4°F68.7°F77.4°F
West Beach73.2°F68.5°F77.4°F
Portage73.2°F68.5°F77.4°F
Marquette Beach73.2°F68.5°F77.4°F
Burns Harbor73.4°F67.5°F77.5°F

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[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.

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Our report for Oak Street Beach 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.

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