Water temperature in Okanagan Lake

This data the coastal Okanagan Lake 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 Okanagan Lake

Water temperature in Okanagan Lake today is 18°C. Based on our historical data over a period of ten years, the warmest water in this day in Okanagan Lake was, like today, 18°C, and the coldest was recorded in 2021 at 14°C. Water temperature in Okanagan Lake is expected to drop to 15.2°C in the next 10 days. September average water temperature in Okanagan Lake is 18.4°C, the minimum temperature is 13°C, and the maximum is 26°C.

The swimming season in Okanagan Lake lasts from July to August. During those months, Okanagan Lake water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in Okanagan Lake in winter reaches 3.6°C, in spring 8.3°C, in summer the average temperature rises to 20.8°C, and in autumn it is 11.8°C.

Okanagan Lake water temperature now

Current temperature and weather

Data in a table show Okanagan Lake temperature today (24 September 2025). For more information and forecast for a few days, go to the weather forecast Okanagan Lake.

0-3 h	3-6 h	6-9 h	9-12 h
16.6°C	15.6°C	14.9°C	19.4°C

12-15 h	15-18 h	18-21 h	21-24 h
24.4°C	24.2°C	21.1°C	17.7°C

Okanagan Lake water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Okanagan Lake. 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 Okanagan Lake 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 Okanagan Lake

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Our report for Okanagan Lake 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.