October weather forecastCape Cod National Seashore, MA

October

Weather in October

With the arrival of October, Cape Cod National Seashore welcomes the vibrancy of fall. Sea temperatures dip to an average of 58.7°F (14.8°C) indicating cooling waters. The sunlight is less generous with the daylight hours flagging down to just above 11 hours. As it falls between September and November, October distinctly marks the cooling trend before winter intensifies.

Ocean temperature

In October, the average ocean temperature is 58.6°F (14.8°C).
Note: Swimming in 58.6°F (14.8°C) feels unbearing at 55.4°F (13°C) and can be life-risking below 50°F (10°C), causing breathing issues and cold shock, depending on a person's capacity.

Daylight

In October, the average length of the day is 11h and 4min.
On the first day of October, sunrise is at 6:37 am and sunset at 6:21 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:34 pm EDT.

Frequently asked questions

In October, the average ocean temperature is 58.6°F (14.8°C). Swimming in 58.6°F (14.8°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

In October, the average day length is 11h and 4min.

On the first day of October, sunrise is at 6:37 am and sunset at 6:21 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:34 pm EDT.

Average sea temperature in October
Cape Cod National Seashore, MA

  • Average sea temperature in October: 58.7°F

The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).

Average daylight in October
Cape Cod National Seashore, MA

  • Average daylight in October: 11h and 6min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).