Lake Monticello — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lake Monticello, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lake Monticello today is 27°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 79°F (26°C) to 82°F (28°C). This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays. 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 3 | 25.1°C | 26.0°C | |
| JUN 4 | 25.1°C | 26.0°C | |
| JUN 5 | 26.2°C | 26.0°C | |
| JUN 6 | 26.2°C | 26.0°C | |
| JUN 7 | 26.1°C | 26.0°C | |
| JUN 8 | 26.5°C | 26.0°C | |
| JUN 10 | 27.0°C | 26.0°C | |
| JUN 11 | 26.0°C | 27.0°C | |
| JUN 12 | 26.0°C | 26.9°C | |
| JUN 13 | 26.0°C | 26.9°C | |
| JUN 14 | 26.0°C | 26.8°C | |
| JUN 15 | 26.0°C | 26.8°C | |
| JUN 16 | 26.0°C | 26.7°C | |
| JUN 17 | 26.0°C | 26.7°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 | 6°C | 10°C | 14°C |
| February | 6°C | 11°C | 15°C |
| March | 8°C | 14°C | 21°C |
| April | 12°C | 18°C | 24°C |
| May | 20°C | 24°C | 27°C |
| June | 23°C | 26°C | 29°C |
| July | 25°C | 30°C | 35°C |
| August | 26°C | 29°C | 32°C |
| September | 25°C | 29°C | 32°C |
| October | 22°C | 25°C | 27°C |
| November | 14°C | 18°C | 22°C |
| December | 8°C | 11°C | 15°C |
Lake Monticello: Water Temperature by Location
Lake Monticello: Weather Forecast
June 9
June 10
June 11
June 12
Location & Local Information
Lake Monticello in Texas experiences typical East Texas reservoir temperatures that shift through the year. In winter surface temperatures often fall into the mid-40s to mid-50s °F (about 7–13 °C). During spring the water warms into the mid-50s to low 70s °F (roughly 13–22 °C) as air temperatures moderate. Summer brings the warmest conditions, with surface readings commonly ranging from the mid-70s to mid-80s °F (around 24–30 °C) and occasionally climbing into the upper 80s °F (about 31–32 °C) during heat waves. In autumn the lake cools back down through the 60s to 50s °F (15–12 °C). These ranges are seasonal averages for shallow surface water and can vary with weather, depth, and time of day.
Swimming at Lake Monticello is typically allowed in appropriate areas but depends on local access rules and advisories. Many residents and visitors swim from shore, docks, or beaches where private property or community regulations permit it; public lifeguards are uncommon so swimming is generally at your own risk. Warm months offer comfortable conditions for bathing, but higher temperatures also raise the chance of algal blooms and reduced water quality, so checking current water advisories and obeying posted signage is important. Basic safety precautions—swimming with a companion, avoiding boat traffic, and being mindful of depth and submerged hazards—help reduce risks.