Weather in September
Ocean temperature
August and September, with an average ocean temperature of 58.1°F (14.5°C), are months with the warmest seawater in Seacliff State Beach, California.Note: Staying in 58.1°F (14.5°C) waters for just a few moments at 55.4°F (13°C) can be harrowing, and below 50°F (10°C) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:35 pm. On the last day of September, in Seacliff State Beach, sunrise is at 7:02 am and sunset at 6:51 pm PDT.
Frequently asked questions
What months are the ocean warmest in Seacliff State Beach?
The months with the warmest seawater are August and September, with an average ocean temperature of 58.1°F (14.5°C).
What is the water temperature in September in Seacliff State Beach?
In Seacliff State Beach, California, in September, the average water temperature is 58.1°F (14.5°C). Swimming in 58.1°F (14.5°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.
How many hours of daylight does Seacliff State Beach have in September?
In September, the average day length is 12h and 24min.
When is the sunrise / sunset in September in Seacliff State Beach?
In September, on the first day of the month, sunrise is at 6:39 am and sunset at 7:35 pm. On the last day of the month, in Seacliff State Beach, California, sunrise is at 7:02 am and sunset at 6:51 pm PDT.
Average sea temperature in September
Seacliff State Beach, CA
- Average sea temperature in September: 58.1°F
The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).
Average daylight in September
Seacliff State Beach, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
Seacliff State Beach, California, USA
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