Manhattan Beach
California, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Manhattan Beach, CA

Ocean temperature

In Manhattan Beach, California, the average seawater temperature in September is 66.7°F (19.3°C).
Note: For swimming, a surface water temperature of 66.7°F (19.3°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

In September, the average length of the day is 12.4h.

What is the ocean temperature in September in Manhattan Beach?

In Manhattan Beach, in September, the average water temperature is 66.7°F (19.3°C). Swimming in 66.7°F (19.3°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

What is the average length of the day in September in Manhattan Beach?

In Manhattan Beach, California, the average length of the day in September is 12.4h.
Average sea temperature in September - Manhattan Beach, CA
  • Average sea temperature in September: 66.7°F

Best months for swimming (with the highest average sea temperature) are July and August (67.9°F).
The coldest month (with the lowest average sea temperature) is January (58.3°F).

Average daylight in September - Manhattan Beach, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).