Oneida Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Oneida Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Oneida Lake today is 19.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 6 | 17.8°C | 17.5°C | |
| JUN 7 | 18.8°C | 17.5°C | |
| JUN 8 | 19.4°C | 17.5°C | |
| JUN 10 | 18.6°C | 17.5°C | |
| JUN 11 | 18.8°C | 17.5°C | |
| JUN 12 | 19.1°C | 17.5°C | |
| JUN 13 | 19.4°C | 17.5°C | |
| JUN 14 | 17.5°C | 19.3°C | |
| JUN 15 | 17.5°C | 19.2°C | |
| JUN 16 | 17.5°C | 19.1°C | |
| JUN 17 | 17.5°C | 19.0°C | |
| JUN 18 | 17.5°C | 18.9°C | |
| JUN 19 | 17.5°C | 18.8°C | |
| JUN 20 | 17.5°C | 18.7°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 3°C | 6°C |
| February | 0°C | 2°C | 5°C |
| March | 1°C | 3°C | 6°C |
| April | 2°C | 7°C | 12°C |
| May | 6°C | 12°C | 19°C |
| June | 14°C | 18°C | 21°C |
| July | 20°C | 25°C | 29°C |
| August | 20°C | 23°C | 25°C |
| September | 16°C | 19°C | 22°C |
| October | 13°C | 16°C | 18°C |
| November | 5°C | 10°C | 13°C |
| December | 3°C | 5°C | 7°C |
Oneida Lake: Water Temperature by Location
Oneida Lake: Weather Forecast
June 14
June 15
June 16
June 17
Location & Local Information
Oneida Lake, a shallow, broad lake in central New York, experiences marked seasonal shifts in surface water temperature. In winter the lake often sits at or near freezing, around 32°F (0°C) with surface ice common. Spring thaw brings temperatures up through the 40s to mid-50s°F (about 4–13°C) as the water mixes and warms. By summer the surface typically reaches the warmest range, commonly between roughly 65–80°F (18–27°C) in June through August, though localized conditions can push temperatures slightly higher on calm, hot days. In autumn the water cools back down to the 50s–60s°F (10–18°C) before approaching freezing again in late fall and winter.
Swimming in Oneida Lake is permitted and commonly practiced at designated public beaches and state parks, where lifeguards and facilities are available during the bathing season. The summer surface temperatures make casual swimming comfortable for many visitors, but water quality and safety factors affect access; algal blooms, bacterial advisories, boat traffic, underwater vegetation, and sudden weather changes can prompt temporary closures or cautions. Ice cover in winter precludes normal swimming and makes any cold-water entry hazardous; recreational swimming is therefore generally confined to the warmer months and to monitored, marked swimming areas.