The month in detail
What to expect in September
Autumn marks the end of peak season in Saint Augustine. Temperatures drop (82°F) and rain returns (41% of days). Expect rain on 41% of days — a light raincoat in the bag is recommended.
September ranks 10 out of 12 months in Saint Augustine. Compared to August: −4°F daytime.
This month's conditions
What it's like in September
UV index
7 · high
sunscreen and hat advised
Feels like
very humid
23°
Sea
29°C
warm, ideal
Daylight
12.2h of daylight
Air quality
good
AQI 30
Compare
Is September the right month?
The best month in Saint Augustine is May (8.6/10), 3.3 pts higher than September.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Saint Augustine
Expedia →
Activities
Tours, tickets, experiences
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Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Saint Augustine
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach trip.
Country · United States
🗣️LanguageEnglish
💶CurrencyUS Dollar ($)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘExpensive · 4/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trend ⓘStable
🔥Hottest monthJuly · 86°F
❄️Coolest monthJanuary · 64°F
🌧️Rainiest month ⓘAugust · 45%
🏖️ Beach trip
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
Explore
Other destinations in September
If September doesn't convince you for this destination, compare with others.
Location
Where is Saint Augustine ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
United StatesTemperate oceanic climate with a 8.6 → 5.0 gap between best and worst month. 10 years of ERA5 data to choose by project.
29.89°N · 81.32°W
Questions
Frequently asked questions
What is the best time to visit Saint Augustine?
May is the best month with 81°F highs, 70°F lows, 7.5h of sunshine and 19.0% rainy days. The months of May & April offer comparable conditions.
How many hours of sunshine does Saint Augustine get in May?
Saint Augustine averages 7.5 sunshine hours per day in May. It is the sunniest month with a climate score of 8.1/10.
What is the rainiest month in Saint Augustine?
August is the most unfavourable month with August has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Saint Augustine in May?
In May, overnight lows reach 70°F, while afternoon highs average 81°F.
Is Saint Augustine good in winter?
In winter (December-February), Saint Augustine scores 7.2/10 on average — Acceptable conditions for cultural visits.. The best month overall remains May with a score of 8.1/10.
When should you avoid Saint Augustine?
August is the most difficult month to visit Saint Augustine, with August has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Saint Augustine in September?
In September, the sea averages 84°F in Saint Augustine: warm, ideal. Ideal conditions for swimming and snorkeling.
Do you need sun protection in Saint Augustine in September?
The average UV index reaches 7 in September in Saint Augustine (high), with about 12.2h of daylight. Sunscreen and hat advised.