Monthly weather forecast and climate
St. Augustine, FL

Palm trees and colorful houses in front of water fountains in a popular town square in St. Augustine, Florida, with a very cloudy sky on a sunny day
Palm trees and colorful houses in front of water fountains in a popular town square in St. Augustine, Florida, with a very cloudy sky on a sunny day

What is the coldest month in St. Augustine?

With an average high-temperature of 66°F (18.9°C) and an average low-temperature of 46°F (7.8°C), January is the coldest month in St. Augustine, Florida.

How much does it rain in St. Augustine?

Throughout the year, there are 116 rainfall days, and 50" (1269.9mm) of precipitation is accumulated.

What is the month with the lowest UV index in St. Augustine?

January and December, with an average UV index of 4, are months with the lowest UV index in St. Augustine, Florida.

What month is the ocean coldest in St. Augustine?

February is the month with the coldest seawater in St. Augustine, Florida, with an average ocean temperature of 64.2°F (17.9°C). For swimming, a surface water temperature of 64.2°F (17.9°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).

What is the month with the highest UV index in St. Augustine?

June and July, with an average UV index of 11, are months with the highest UV index in St. Augustine, Florida.

What is the warmest month in St. Augustine?

With an average high-temperature of 90°F (32.2°C) and an average low-temperature of 72°F (22.2°C), July is the warmest month.

When is the ocean warmest in St. Augustine?

The month with the warmest seawater in St. Augustine is August, with an average ocean temperature of 83.8°F (28.8°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

What is the rainiest month in St. Augustine?

The month with the most rainfall is September when the rain falls for 13 days and typically aggregates up to 7.5" (190.5mm) of precipitation.

What is the driest month in St. Augustine?

The month with the least rainfall is November when the rain falls for 7 days and typically collects 2.3" (58.4mm) of precipitation.
Average rainfall - St. Augustine, FL
Average rainfall days - St. Augustine, FL
Average sea temperature - St. Augustine, FL

The best month for swimming (with the highest average sea temperature) is August (83.8°F).
Coldest months (with the lowest average sea temperature) are January and February (64.3°F).

Average daylight / Average sunshine - St. Augustine, FL

The month with the longest days is June (Average daylight: 14.1h).
The month with shortest days is December (Average daylight: 10.2h).

Months with most sunshine are March, April, May, June, July and August (Average sunshine: 9h).
The month with least sunshine is December (Average sunshine: 6h).

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