Lucan — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Lucan, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Lucan 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 |
|---|---|---|---|
| JUL 16 | 18.6°C | 19.0°C | |
| JUL 17 | 18.6°C | 19.0°C | |
| JUL 18 | 18.5°C | 19.0°C | |
| JUL 19 | 18.4°C | 19.0°C | |
| JUL 20 | 18.0°C | 19.0°C | |
| JUL 21 | 17.5°C | 19.0°C | |
| JUL 22 | 17.4°C | 19.0°C | |
| JUL 23 | 17.4°C | 19.0°C | |
| JUL 24 | 19.0°C | 17.5°C | |
| JUL 25 | 19.0°C | 17.6°C | |
| JUL 26 | 19.0°C | 17.6°C | |
| JUL 27 | 19.0°C | 17.7°C | |
| JUL 28 | 19.0°C | 17.8°C | |
| JUL 29 | 19.0°C | 17.9°C | |
| JUL 30 | 19.0°C | 18.0°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 | 1°C | 5°C | 8°C |
| February | 1°C | 5°C | 8°C |
| March | 2°C | 6°C | 9°C |
| April | 6°C | 9°C | 12°C |
| May | 9°C | 14°C | 18°C |
| June | 12°C | 18°C | 23°C |
| July | 15°C | 19°C | 24°C |
| August | 14°C | 18°C | 23°C |
| September | 11°C | 16°C | 20°C |
| October | 9°C | 12°C | 15°C |
| November | 4°C | 8°C | 11°C |
| December | 1°C | 5°C | 9°C |
Lucan: Weather Forecast
July 24
July 25
July 26
July 27
Location & Local Information
The segment of the River Liffey flowing through Lucan, on the western fringe of Dublin, is a characteristic cool-temperature Irish river. The water temperature typically ranges from a low of about 7∘C (45∘F) in the peak of winter, rising to a maximum summer average of around 15∘C (59∘F). This consistent chill makes it unappealing for casual bathers and poses a risk of cold shock for those unprepared.
Swimming is generally discouraged and not officially permitted in this area of the Liffey, particularly near the dangerous Lucan Weir. Local authorities actively remind the public that the river is not tested to bathing water standards, citing concerns over potential water quality issues from urban and agricultural run-off, as well as the inherent dangers of strong currents, deep water, and weirs. The river at Lucan is, however, widely used for water sports like canoeing and hosts part of the famous annual Liffey Descent race. For attractions on dry land, visitors can explore the village's historic charm, the sprawling green space of Lucan Demesne Park, or visit the nearby Castletown House.