Sea Temperature in Chinook in September

© Carol Myers

Complete information on the sea temperature range in the Pacific Ocean in Chinook in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Chinook. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Chinook Climate and Swimming Opportunities in September

Chinook lies within the Washington in United States. The average daytime temperature in Chinook in September is 68°F (20°C), while the nighttime average is 48°F (9°C). There are typically nine rainy days during the month, with a total precipitation of 3.0 inches (75 mm). The daylight duration in September in Chinook is 12 hours, with an average of 7 hours of sunshine per day. The average wind speed in September is 8 mph (13 km/h), and the humidity level is around 79%.

The water temperature in Chinook in September ranges from 55°F to 59°F (13°C to 15°C). At the beginning of the month, the average temperature is around 57°F (14°C), shifting to 57°F (14°C) by mid-September and reaching 57°F (14°C) in the last ten days. Overall, the average sea temperature in Chinook for September is 57°F (14°C). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Frequently Asked Questions About Water Temperatures in September in Chinook