Harveys Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Harveys Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Harveys Lake today is 19.8°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 |
|---|---|---|---|
| SEP 14 | 20.0°C | 22.5°C | |
| SEP 15 | 20.7°C | 22.5°C | |
| SEP 16 | 20.3°C | 22.5°C | |
| SEP 17 | 19.6°C | 22.5°C | |
| SEP 18 | 19.3°C | 22.5°C | |
| SEP 19 | 20.4°C | 22.5°C | |
| SEP 20 | 20.3°C | 22.5°C | |
| SEP 21 | 19.8°C | 22.5°C | |
| SEP 22 | 22.5°C | 19.9°C | |
| SEP 23 | 22.5°C | 20.1°C | |
| SEP 24 | 22.5°C | 20.2°C | |
| SEP 25 | 22.5°C | 20.3°C | |
| SEP 26 | 22.5°C | 20.5°C | |
| SEP 27 | 22.5°C | 20.6°C | |
| SEP 28 | 22.5°C | 20.7°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 | 4°C | 7°C |
| February | 0°C | 4°C | 7°C |
| March | 0°C | 4°C | 7°C |
| April | 4°C | 10°C | 15°C |
| May | 11°C | 16°C | 21°C |
| June | 18°C | 21°C | 23°C |
| July | 20°C | 25°C | 29°C |
| August | 21°C | 24°C | 27°C |
| September | 19°C | 23°C | 26°C |
| October | 12°C | 18°C | 24°C |
| November | 6°C | 11°C | 16°C |
| December | 0°C | 5°C | 10°C |
Harveys Lake: Water Temperature by Location
Harveys Lake: Weather Forecast
September 21
September 22
September 23
September 24
September 25
Location & Local Information
Harveys Lake in northeastern Pennsylvania experiences a typical temperate-lake thermal cycle. Spring surface temperatures generally run from the mid-40s to low 60s °F (about 7–16 °C) as the water slowly warms; summer often brings the warmest readings, commonly in the upper 60s to high 70s °F (around 20–26 °C) and occasionally into the low 80s °F (27–28 °C) during heat spells. By autumn the lake cools back into the 50s–60s °F range (10–18 °C), and winter sees surface temperatures near freezing, around 32–40 °F (0–4 °C) with ice forming in colder periods.
Swimming is practiced at Harveys Lake primarily in the warmer months and is allowed in designated areas; local management and health authorities oversee access and may post rules, lifeguard schedules, or closures based on water quality or safety concerns. The summer temperature band generally supports comfortable recreational swimming, while spring and especially fall water can feel quite chilly, and winter conditions are unsafe for swimming because of cold-water shock and ice hazards. Visitors should check current local advisories before entering the water.