Brookville Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Brookville Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Brookville Lake today is 18.7°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 |
|---|---|---|---|
| OCT 5 | 21.1°C | 21.0°C | |
| OCT 6 | 21.0°C | 21.0°C | |
| OCT 7 | 21.1°C | 21.0°C | |
| OCT 8 | 19.8°C | 21.0°C | |
| OCT 9 | 19.5°C | 21.0°C | |
| OCT 10 | 19.4°C | 21.0°C | |
| OCT 11 | 19.6°C | 21.0°C | |
| OCT 12 | 19.4°C | 21.0°C | |
| OCT 13 | 21.0°C | 18.8°C | |
| OCT 14 | 21.0°C | 18.9°C | |
| OCT 15 | 21.0°C | 19.0°C | |
| OCT 16 | 21.0°C | 19.2°C | |
| OCT 17 | 21.0°C | 19.3°C | |
| OCT 18 | 21.0°C | 19.4°C | |
| OCT 19 | 21.0°C | 19.5°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 | 7°C |
| February | 1°C | 3°C | 6°C |
| March | 2°C | 7°C | 12°C |
| April | 4°C | 11°C | 18°C |
| May | 13°C | 17°C | 22°C |
| June | 19°C | 22°C | 25°C |
| July | 22°C | 25°C | 29°C |
| August | 24°C | 27°C | 29°C |
| September | 21°C | 26°C | 30°C |
| October | 17°C | 21°C | 25°C |
| November | 6°C | 12°C | 17°C |
| December | 4°C | 8°C | 10°C |
Brookville Lake: Water Temperature by Location
Brookville Lake: Weather Forecast
October 13
October 14
October 15
October 16
October 17
Location & Local Information
Brookville Lake’s surface water temperatures vary considerably through the year. In summer months (June–August) surface readings commonly climb into the mid‑60s to mid‑80s °F (about 18–29 °C), making conditions pleasant for many swimmers. Spring (March–May) typically brings cooler water, often in the 40s to low‑60s °F (4–17 °C) as runoff and cooler air keep the reservoir chilly. In fall (September–November) temperatures usually decline into the 50s to low‑70s °F (10–22 °C) before winter sets in, when surface temperatures approach freezing — roughly 32–40 °F (0–4 °C) — and ice or near‑ice conditions are possible on shallower bays. Deeper water remains colder year‑round.
Swimming is allowed in recreational parts of the lake, but it is generally at your own risk and subject to posted rules and seasonal restrictions. Many access points do not have lifeguards, and swimmers should be mindful of boat traffic, sudden depth changes, submerged timber, and variable currents that can make conditions hazardous despite warm surface readings. Because of these factors, full safety precautions — life jackets for weaker swimmers and awareness of local signage and weather — are recommended before entering the water.