January weather forecast
St. Augustine, FL

Beginning the year, St. Augustine's weather breathes fresh optimism with mild temperatures and a moderate share of rainfall. It becomes the launching point with clear sunny days, creating a refreshing contrast to the wintry landscapes elsewhere in the United States. Observers may note a subtle increase in average rainfall amounting to 2.7" (69mm) spanning over 8 days. Something that sets it apart is the agreeable sea temperature enticing the brave for a chilly dip. This January ambiance ushers in new beginnings with pleasing weather patterns.

Temperature

January, with an average high of 66°F (18.9°C) and a low of 46°F (7.8°C), signifies the coldest month of the year in St. Augustine.

Rainfall

In St. Augustine, in January, during 8 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. Throughout the year, in St. Augustine, there are 116 rainfall days, and 50" (1270mm) of precipitation is accumulated.

Ocean temperature

In January, the average ocean temperature in St. Augustine is 64.4°F (18°C).
Note: The majority of people do not enjoy swimming in 64.4°F (18°C). The difficulty in controlling breathing escalates as the temperature descends from 69.8°F (21°C) to 59°F (15°C).

Daylight

In St. Augustine, the average length of the day in January is 10h and 29min.
On the first day of January in St. Augustine, sunrise is at 7:20 am and sunset at 5:36 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 6:01 pm EST.

Sunshine

The average sunshine in January in St. Augustine is 7h.

UV index

January and December, with an average maximum UV index of 4, are months with the lowest UV index in St. Augustine, Florida. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: In January, the average maximum UV index of 4 translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.