Click on a day for an hourly weather forecast
The weather in Saint Augustine in September is very hot. The average temperatures are between 24°C and 30°C, drinking water regularly is advisable.
You can expect rain for roughly half of the month of September in Saint Augustine. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Saint Augustine in September 2025.
If you’re planning to visit Saint Augustine in the near future, we highly recommend that you review the 14 day weather forecast for Saint Augustine before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 18° / 11° | 4 | 27 | 0 | 64 mm | Good | Saint Augustine in January |
| February | 20° / 13° | 4 | 24 | 0 | 80 mm | Good | Saint Augustine in February |
| March | 22° / 15° | 4 | 27 | 0 | 74 mm | Good | Saint Augustine in March |
| April | 25° / 18° | 5 | 25 | 0 | 91 mm | Perfect | Saint Augustine in April |
| May | 28° / 21° | 7 | 24 | 0 | 157 mm | Good | Saint Augustine in May |
| June | 31° / 24° | 11 | 19 | 0 | 200 mm | Ok | Saint Augustine in June |
| July | 32° / 25° | 14 | 17 | 0 | 215 mm | Ok | Saint Augustine in July |
| August | 32° / 25° | 14 | 17 | 0 | 248 mm | Ok | Saint Augustine in August |
| September | 30° / 24° | 9 | 21 | 0 | 228 mm | Ok | Saint Augustine in September |
| October | 27° / 21° | 5 | 26 | 0 | 120 mm | Perfect | Saint Augustine in October |
| November | 23° / 17° | 3 | 27 | 0 | 81 mm | Perfect | Saint Augustine in November |
| December | 20° / 14° | 3 | 28 | 0 | 65 mm | Good | Saint Augustine in December |