Indiana Dunes Beach Conditions Today
Live water temperature, waves, and UV for Indiana Dunes Beach, Indiana
Updated 7:00 AM CDT
Current conditions
Best time to go today
Morning now
6 AM – 11 AM
85/100
- 64°F, wind 5 mph
- Moderate UV (4)
- Clear skies
Midday
11 AM – 3 PM
95/100
- 76°F, wind 5 mph
- Clear skies
- ⚠ UV reaches 6 — high
Afternoon
3 PM – 7 PM
98/100
- 78°F, wind 5 mph
- Clear skies
- Golden hour before sunset
Best for
Swim risk
NWS LOT Surf Zone Forecast, issued 2026-08-28. Always follow lifeguard instructions and posted flags.
Tides
Indiana Dunes Beach is on Lake Michigan, and the Great Lakes are non-tidal — the true astronomical tide is under two inches. Water level here moves with wind and barometric pressure (seiches), not a tide table. Why the Great Lakes have no tides
About Indiana Dunes Beach
Indiana Dunes Beach sits on Lake Michigan, where the water runs from about 36°F in February to 74°F in August.
The water averages above 70°F in July, August and September — 3 months of the year — peaking around 74°F in August and dropping to about 36°F in February.
Today it is 75°F. That is 1° above the August average of 74°F here.
Frequently asked questions
Is today a good beach day at Indiana Dunes Beach?
We score today 98 out of 100 — great. The best window is afternoon (3 PM – 7 PM).
How warm is the water at Indiana Dunes Beach?
About 75°F. That is 1° above the August average of 74°F here.
Is it safe to swim at Indiana Dunes Beach today?
The National Weather Service rates the swim risk at Indiana Dunes Beach as low for today. Low risk is not no risk: rip currents still form near groins, jetties and piers.