Lamar — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Lamar (Texas, United States). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Lamar help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Lamar in the Gulf of America today is 25°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health.
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
Water temperature in Lamar has fallen over the last month but risen over the last 7 days. Currently, the sea water temperature at this location matches the average for this day in previous years.
According to our forecast, Water temperature in Lamar will be 24.1°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| OCT 25 | 25.0°C | 26.3°C | |
| OCT 26 | 24.6°C | 26.5°C | |
| OCT 27 | 24.5°C | 26.3°C | |
| OCT 28 | 24.6°C | 25.3°C | |
| OCT 29 | 24.6°C | 24.5°C | |
| OCT 30 | 25.0°C | 24.3°C | |
| OCT 31 | 25.0°C | 24.0°C | |
| NOV 1 | 24.7°C | 25.3°C | |
| NOV 2 | 25.1°C | 24.8°C | 25.1°C |
| NOV 3 | 23.5°C | 25.0°C | |
| NOV 4 | 23.8°C | 24.8°C | |
| NOV 5 | 23.3°C | 24.7°C | |
| NOV 6 | 23.5°C | 24.5°C | |
| NOV 7 | 24.0°C | 24.4°C | |
| NOV 8 | 23.3°C | 24.2°C | |
| NOV 9 | 23.5°C | 24.1°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.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Lamar, Texas is a small community in the state with access to the region’s typical inland waters—creeks, small lakes, ponds and nearby reservoirs—rather than extensive coastal beaches. Water temperatures around Lamar follow the seasonal patterns common to temperate parts of Texas. In winter months surface temperatures often fall into the single digits to low teens, roughly 7–14 °C, making open-water swimming brisk and generally suitable only for short exposures or cold-water enthusiasts. Spring sees steady warming, with many local spots rising into the mid to high teens and low twenties, approximately 12–22 °C, while summer brings the warmest conditions: surface waters commonly reach 24–30 °C and can exceed 30 °C in shallow, stagnant areas during heat waves. Autumn cooling is gradual, typically returning waters to the mid-teens to mid-twenties (about 15–24 °C) depending on recent weather.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 11°C | 15°C | 22°C |
| February | 8°C | 16°C | 20°C |
| March | 13°C | 19°C | 24°C |
| April | 19°C | 23°C | 26°C |
| May | 22°C | 26°C | 30°C |
| June | 27°C | 29°C | 32°C |
| July | 27°C | 30°C | 32°C |
| August | 28°C | 30°C | 32°C |
| September | 26°C | 29°C | 32°C |
| October | 21°C | 27°C | 30°C |
| November | 17°C | 22°C | 27°C |
| December | 13°C | 18°C | 23°C |
* Click on a month to view detailed water temperature data.
Lamar: Weather Forecast
November 3
November 4
November 5
November 6
Location, Beaches & Local Information
Nearby Beaches & Facilities
Copano Causeway - North
Goose Island State Park
Copano Bay State Fishing Pier
Copano Causeway - South
Swimming Conditions
For people looking to swim or plan a water-based holiday near Lamar, most recreational options center on inland swimming areas, public pools, and managed reservoir beaches rather than long sandy ocean shores. The warmest and most comfortable swimming window is generally from late spring through early fall when water temperatures are above about 22 °C. Local reservoirs and designated swimming areas may offer lifeguards, boat launches and picnic facilities, while quieter ponds and river shallows provide spots for wading and informal swims. Visitors should check current water temperature, clarity and safety advisories—especially for algae blooms, sudden drop-offs or strong currents—and take standard precautions such as not swimming alone, using flotation for inexperienced swimmers, and following posted rules to ensure a safe outing.