Lake Bluff
Illinois, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Lake Bluff, IL

Ocean temperature

With an average ocean temperature of 73.2°F (22.9°C), August is the month with the warmest seawater in Lake Bluff, Illinois.
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 73.2°F (22.9°C) water. (FYI: The Olympic swimming competition requires a water temperature between 77°F (25°C) and 82.4°F (28°C).)

Daylight

In Lake Bluff, Illinois, the average length of the day in August is 13.8h.

When is the ocean warmest in Lake Bluff?

With an average ocean temperature of 73.2°F (22.9°C), August is the month with the warmest seawater in Lake Bluff, Illinois.

How warm is the water in August in Lake Bluff?

In Lake Bluff, in August, the average water temperature is 73.2°F (22.9°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 73.2°F (22.9°C) water may be enjoyable.

What is the average length of the day in August in Lake Bluff?

In August, the average length of the day in Lake Bluff, Illinois, is 13.8h.
Average sea temperature in August - Lake Bluff, IL
  • Average sea temperature in August: 73.3°F

The best month for swimming (with the highest average sea temperature) is August (73.3°F).
The coldest month (with the lowest average sea temperature) is February (37.1°F).

Average daylight in August - Lake Bluff, IL
  • Average daylight in August: 13.8h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.1h).