Water temperature in Derwentwater

This data the coastal Derwentwater water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current water temperature in Derwentwater

Water temperature in Derwentwater today is 15°C. Based on our historical data over a period of ten years, the warmest water in this day in Derwentwater was recorded in 2023 and was 17°C, and the coldest was recorded in 2020 at 13°C. Water temperature in Derwentwater is expected to drop to 13.8°C in the next 10 days. September average water temperature in Derwentwater is 13.9°C, the minimum temperature is 10°C, and the maximum is 19°C.

Throughout the year, the water temperature in Derwentwater does not rise above 20°C and therefore is not suitable for comfortable swimming. But on some days of July, the water temperature warms up to 20°C and above. The average water temperature in Derwentwater in winter reaches 5.4°C, in spring 8.4°C, in summer the average temperature rises to 14.9°C, and in autumn it is 11°C.

Derwentwater water temperature now

Current temperature and weather

Data in a table show Derwentwater temperature today (6 September 2025). For more information and forecast for a few days, go to the weather forecast Derwentwater.

0-3 h	3-6 h	6-9 h	9-12 h
10.4°C	9.9°C	10.3°C	14°C

12-15 h	15-18 h	18-21 h	21-24 h
15.7°C	16.5°C	14.9°C	15.5°C

Derwentwater water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Derwentwater. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Derwentwater on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Derwentwater

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Derwent Water

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Our report for Derwentwater is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.