Castaic Lake Current Water Temperature and Forecast

As of today, the minimum water temperature in the Castaic Lake 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 for Castaic Lake Over the Last 30 Days

Today the water temperature in Castaic Lake is higher than the same day in previous years. The water temperature range here in August is from 24°C to 29°C. The water temperature has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Castaic Lake are presented in the table below.

The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.

Monthly Water Temperature Histogram for Castaic Lake