Estimated surface temperature for Tiffin Low Head Reservoir 1031-008 in Seneca County, Ohio, updated with live National Weather Service air temperatures and a seasonal model tuned to this lake's latitude and depth. Use it to plan fishing, swimming, and boating — then verify on the water.
Water temperature
Modeled surface-temperature estimate built from seasonal climate, lake depth, and live National Weather Service air temperatures near this lake.
Seasonal estimate. Checking current National Weather Service air temperatures…
Comfortable summer pattern. Bass and panfish are active; early and late hours beat the midday heat.
| Month | Typical surface temp | Conditions |
|---|---|---|
| January | ~36°F | Frigid |
| February | ~35°F | Iced over or near freezing |
| March | ~39°F | Frigid |
| April | ~48°F | Cold |
| May | ~59°F | Cool |
| June | ~70°F | Warm |
| July | ~77°F | Peak summer |
| August | ~78°F | Peak summer |
| September | ~74°F | Warm |
| October | ~65°F | Warm |
| November | ~53°F | Cold |
| December | ~43°F | Frigid |
Estimates are modeled, not measured. Actual temperatures vary with depth, wind mixing, and recent weather — verify conditions before swimming, boating, or heading onto ice.
Water temperature FAQ
LakeList currently estimates the surface temperature of Tiffin Low Head Reservoir 1031-008 at about 74°F (warm). This is a modeled estimate from seasonal climate, lake depth, and National Weather Service air temperatures — actual readings vary by day, depth, and location on the lake.
Surface temperatures at Tiffin Low Head Reservoir 1031-008 typically peak in August, reaching around 78°F in an average year. Shallow bays warm faster than the main basin, so mid-summer readings can run a few degrees higher near shore.
Modeled surface temperatures at Tiffin Low Head Reservoir 1031-008 drop to freezing around February in a typical year. Actual ice-up and ice-out dates vary season to season, and ice thickness is never guaranteed — always check current local ice reports before heading out.
LakeList models the seasonal surface-temperature cycle from the lake's latitude and depth, then adjusts it with current National Weather Service air temperatures near the lake. Deeper lakes warm and cool more slowly than shallow ones, so the model lags and dampens the air-temperature cycle accordingly. Treat it as a planning estimate, not a measured reading.