Tomar — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Tomar, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Tomar today is 17.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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 2 | 19.9°C | 20.0°C | |
| JUN 3 | 18.5°C | 20.0°C | |
| JUN 4 | 18.3°C | 20.0°C | |
| JUN 5 | 18.3°C | 20.0°C | |
| JUN 6 | 18.2°C | 20.0°C | |
| JUN 7 | 17.9°C | 20.0°C | |
| JUN 8 | 17.5°C | 20.0°C | |
| JUN 10 | 20.0°C | 17.5°C | |
| JUN 11 | 20.0°C | 17.7°C | |
| JUN 12 | 20.0°C | 17.8°C | |
| JUN 13 | 20.0°C | 17.9°C | |
| JUN 14 | 20.0°C | 18.1°C | |
| JUN 15 | 20.0°C | 18.2°C | |
| JUN 16 | 20.0°C | 18.3°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 | 9°C | 12°C |
| February | 6°C | 9°C | 13°C |
| March | 9°C | 12°C | 15°C |
| April | 9°C | 13°C | 18°C |
| May | 10°C | 15°C | 21°C |
| June | 16°C | 20°C | 25°C |
| July | 18°C | 23°C | 27°C |
| August | 18°C | 23°C | 27°C |
| September | 18°C | 22°C | 27°C |
| October | 14°C | 18°C | 20°C |
| November | 10°C | 14°C | 18°C |
| December | 8°C | 11°C | 14°C |
Tomar: Weather Forecast
June 9
June 10
June 11
June 12
June 13
June 14
Location & Local Information
Tomar sits near the large Castelo de Bode reservoir on the Zêzere River, and water temperatures in that lake-style reservoir vary by season and by depth. Typical surface temperatures in winter generally range from about 8–12 °C (46–54 °F), rising through spring to roughly 12–18 °C (54–64 °F). In summer the reservoir often reaches its warmest values, commonly around 20–26 °C (68–79 °F) at the surface on hot days, while autumn brings a gradual cooling to roughly 14–20 °C (57–68 °F). Local conditions such as recent weather, wind, water releases from the dam and the greater depth of the reservoir can make temperatures cooler than these surface averages, particularly near the dam wall or in shaded coves.
Swimming and other water recreation are available in and around Tomar, generally permitted in designated areas and fluvial beaches where water quality and safety are monitored. However, swimming is commonly restricted close to dam infrastructure, spillways and busy boating channels for safety reasons, and signage or municipal rules should be observed. Visitors are advised to follow local information on permitted spots, watch for currents or sudden temperature changes near deeper water, and respect seasonal closures or warnings that may be posted.