Early autumn · Weather & things to do
Amelia Island in September
Amelia Island edges cooler than August, with highs of 82°F (28°C), lows of 78°F (26°C) and about 5.4 in (137 mm) of rain.
Our comfort score puts it mid-table at 68/100, 9th of 12.
- Avg high
- 82°F (28°C)
- Avg low
- 78°F (26°C)
- Rain
- 5.4 in (137 mm)
- Humidity
- 79%
- Cloud cover
- 59%
- Daylight
- ~12 h 11 min
- Comfort score
- 68/100 · Good
What September feels like
Days are warm, averaging 82°F (28°C).
Nights stay warm too, with lows averaging 78°F (26°C).
Humidity averages 79%, so the air feels sticky and the heat feels stronger than the thermometer says.
Expect regular rain: about 5.4 in (137 mm) falls in the month.
Plan around September
September sits mid-table; the best months are February – May and November & December.
- Comfort improves from 58/100 in August to 68/100.
- Our St. Augustine & Amelia Island route is planned for Late Nov – Jan, a window set by the holiday season rather than the weather — September falls outside it.
What to pack for September
- Light, breathable clothes82°F afternoons
- Quick-dry fabrics79% average humidity
- Rain jacket and waterproof shoesfrequent rain
- Comfortable walking shoesmost picks involve some walking
What to do in Amelia Island in September
Wet days call for a roof: these picks favor sit-down and indoor stops, plus a few for drier spells.
Amelia Island Museum of History
Island history from the Timucua to the shrimping era, housed in the old 1935 Nassau County jail.
Why now An indoor-leaning stop for a month with 5.4 in of rain.
Fort Clinch State Park
Brick 19th-century fort at the island's north tip, with costumed garrison programs, beach and maritime-forest trails.
Centre Street
Main street of Fernandina Beach's 50-block historic district, with Victorian brick storefronts running down to the harbor.
Egans Creek Greenway
About 300 acres of salt marsh and trails through the middle of the island, good for walking, cycling and wading birds.
Timoti's Seafood Shak
Casual local seafood counter a block off Centre Street, known for local wild-caught shrimp and fish tacos.
Nearby in September
- Jacksonville Beach in September~27 mi · highs 82°F, 5.4 in rain · similar daytime temperatures, about as wet
- Downtown Jacksonville & Southbank in September~27 mi · highs 86°F, 5.8 in rain · 2°C (4°F) warmer by day, about as wet
- St. Augustine in September~54 mi · highs 84°F, 6.6 in rain · similar daytime temperatures, wetter
- Savannah in September~100 mi · highs 85°F, 4.1 in rain · 2°C (3°F) warmer by day, drier
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Amelia Island in September: quick answers
Is September a good time to visit Amelia Island?
It's middling, scoring 68/100. The best months are February – May and November & December, at up to 89. Expect highs of 82°F (28°C) and 5.4 in (137 mm) of rain.
How hot is Amelia Island in September?
Average highs are 82°F (28°C) and average lows 78°F (26°C), making it the 4th-warmest month by daytime highs.
Does it rain a lot in Amelia Island in September?
Yes: about 5.4 in (137 mm) of rain falls across September on average, the 3rd-wettest month of the year. The annual total is about 46.6 in (1184 mm).
What should I pack for Amelia Island in September?
Bring light, breathable clothes (82°F afternoons), quick-dry fabrics (79% average humidity), rain jacket and waterproof shoes (frequent rain) and comfortable walking shoes (most picks involve some walking).
More on Amelia Island
Planning Amelia Island in September?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.