March weather forecast
St. Augustine, FL

March, the first month of the spring in St. Augustine, is still a pleasant month, with an average temperature fluctuating between 53.1°F (11.7°C) and 73°F (22.8°C).

Temperature

In St. Augustine, Florida, the average high-temperature in March is practically the same as in February - a still pleasant 73°F (22.8°C). The average low-temperature, in St. Augustine, is 53.1°F (11.7°C).

Rainfall

In St. Augustine, it is raining for 8 days, with typically 3.9" (99mm) of accumulated precipitation. In St. Augustine, during the entire year, the rain falls for 116 days and collects up to 50" (1270mm) of precipitation.

Ocean temperature

In March, the average ocean temperature in St. Augustine, Florida, is 66°F (18.9°C).
Note: For swimming, a surface water temperature of 66°F (18.9°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 St. Augustine, the average length of the day in March is 12h and 1min.
On the first day of the month, sunrise is at 6:50 am and sunset at 6:24 pm EST. On the last day of March, in St. Augustine, sunrise is at 7:15 am and sunset at 7:43 pm EDT.
Note: On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 5. 2023, at 2:00 am; consequently, the time zone reverts from EDT to EST.

Sunshine

The months with the most sunshine in St. Augustine are March through August, with an average of 9h of sunshine.

UV index

In March, the average daily maximum UV index in St. Augustine is 8. A UV Index reading of 8 to 10 represents a very high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In March, the average maximum UV index of 8 translate into the following recommendations:
Take special precautions, as unprotected skin can be damaged and can burn quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.