Siesta Key
Florida, USA
Long-term weather forecast
Long-term weather forecast

January weather forecast and climate
Siesta Key, FL

Ocean temperature

With an average ocean temperature of 64°F (17.8°C), January is the month with the coldest seawater in Siesta Key, Florida.
Note: For most, swimming in 64°F (17.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

Daylight

In Siesta Key, the average length of the day in January is 10.7h.

What is the month with the coldest ocean in Siesta Key?

With an average ocean temperature of 64°F (17.8°C), January is the month with the coldest seawater in Siesta Key, Florida.

What is the ocean temperature in January in Siesta Key?

In Siesta Key, Florida, the average seawater temperature in January is 64°F (17.8°C). For most, swimming in 64°F (17.8°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

What is the average length of the day in January in Siesta Key?

In January, the average length of the day in Siesta Key, Florida, is 10.7h.
Average sea temperature in January - Siesta Key, FL
  • Average sea temperature in January: 64.1°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64.1°F).

Average daylight in January - Siesta Key, FL
  • Average daylight in January: 10.7h

The month with the longest days is June (Average daylight: 13.8h).
The month with shortest days is December (Average daylight: 10.4h).