Monthly weather forecast and Climate
St. Augustine, FL US

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (66°F).

The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (46°F).

The wettest month (with the highest rainfall) is September (7.5").
The driest month (with the lowest rainfall) is November (2.3").

Months with the highest number of rainy days are July and August (15 days).
The month with the lowest number of rainy days is April (6 days).

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).

Months with the longest days are May, June and July (Average daylight: 14h).
Months with shortest days are January and December (Average daylight: 10h).

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).

Months with the highest UV index are June and July (UV index 11).
Months with the lowest UV index are January and December (UV index 4).