Running Here Year-Round: What 16,000 Miles Have Taught Me

I run on Amelia Island every single day — in January cold fronts that drop us into the 30s and in July heat that makes your shoes stick to the asphalt. After logging over 16,000 miles here across every season, I can tell you exactly what to expect month by month and how to make the most of whatever weather the island throws at you.

Bottom line up front: The best months for running are March, April, October, November, and December. If you’re planning a running trip, aim for those windows. But every month has its upside if you know how to work with the conditions.

Season-by-Season Overview

Season Avg High Avg Low Humidity Monthly Rain Running Verdict
Winter (Dec-Feb) ~65°F ~45°F 65-70% Low Best season. Cool, low humidity, minimal rain.
Spring (Mar-May) 75-85°F 55-65°F 70-75% Moderate Excellent. March-April ideal. May starts warming.
Summer (Jun-Aug) ~90°F ~72°F 78-81% 7-8 in/month Tough. Early morning or evening only.
Fall (Sep-Nov) 70-85°F 55-68°F 72-76% Moderate, declining Great. October-November very comfortable.

Month-by-Month Breakdown

January

Highs: 62-66°F | Lows: 42-46°F | Rain: Low The Cannon Ball Run half marathon kicks off the year, and it’s timed perfectly. January is cold by Florida standards — you’ll want a long sleeve for early morning starts, and occasional cold fronts can push lows into the 30s. But for running, this is gold. Low humidity, cool temps, clear skies. I run my best long runs in January.

Tip: Layer up for sunrise runs. The wind off the Atlantic can make 45°F feel like 35°F.

February

Highs: 64-68°F | Lows: 44-48°F | Rain: Low The Amelia Island Half Marathon’s February edition falls right in the sweet spot. Similar to January but with slightly longer days. The azaleas start blooming, and the island looks incredible. Still firmly in prime running season.

Tip: This is peak race-cation weather. If you’re flying in from a northern winter, you’ll feel like you have superpowers in this air.

March

Highs: 70-76°F | Lows: 52-58°F | Rain: Moderate My pick for the single best running month on Amelia Island. The cold-front risk from winter fades, temperatures are warm but not hot, humidity hasn’t ramped up yet, and the island is gorgeous with spring blooms. The Pirates on the Run 5K happens this month.

Tip: Sea turtles start nesting season. Watch for nest markers on the beach during your runs.

April

Highs: 76-82°F | Lows: 58-64°F | Rain: Moderate Still excellent. You’ll start to feel the humidity creeping in by late April, especially on afternoon runs. Morning runs remain cool and comfortable. Spring break crowds thin out by mid-month.

Tip: This is the last month where midday running is comfortable. Enjoy it.

May

Highs: 83-87°F | Lows: 65-68°F | Rain: Increasing The transition month. May is when summer announces itself — afternoon thunderstorms begin, humidity jumps noticeably, and you’ll start rearranging your schedule around the heat. Morning runs before 8 AM are still very pleasant.

Tip: Thunderstorm season starts. Check the forecast before afternoon runs, especially on the beach.

June

Highs: 88-91°F | Lows: 72-74°F | Rain: 7-8 inches Summer is here. The heat and humidity are real — heat index regularly exceeds 100°F by mid-morning. Afternoon thunderstorms are almost daily. I shift to pre-dawn runs in June, usually out the door by 5:30 AM. The beach has a breeze that helps, but the sun reflecting off the sand and water is relentless.

Tip: Run before 8 AM or after 6 PM. Carry water on anything over 3 miles. There is no such thing as too much sunscreen.

July

Highs: 90-92°F | Lows: 73-75°F | Rain: 7-8 inches The hardest month to run on Amelia Island. The Firecracker 5K on July 4th is a test of heat tolerance. The saving grace is the ocean breeze — beach runs at dawn are survivable and even beautiful, with the sun coming up over the Atlantic. But by 9 AM, you need to be done.

Tip: Hydrate the day before a long run, not just during it. The humidity makes you sweat more than you realize, and your body is losing fluids constantly.

August

Highs: 90-92°F | Lows: 73-75°F | Rain: 7-8 inches Similar to July. The monotony of the heat is the challenge — you’ve been running in a sauna for two months and it wears on you mentally. But there’s a silver lining: August training makes you incredibly fit. When fall arrives, you’ll feel the payoff.

Tip: Shaded routes matter now more than ever. Fort Clinch’s paved park road under the live oak canopy is 10+ degrees cooler than the open beach.

September

Highs: 86-89°F | Lows: 71-73°F | Rain: Moderate The light at the end of the summer tunnel. Temperatures start easing by late September, and the afternoon storms become less frequent. Hurricane season is at its peak, though — keep an eye on forecasts. Running is still warm but noticeably better than July-August.

Tip: Hurricane season runs June-November with peak activity August-October. Always have a backup plan for tropical weather.

October

Highs: 78-83°F | Lows: 62-66°F | Rain: Moderate, declining The fall Amelia Island Half Marathon happens in October, and the timing is perfect. Temperatures drop, humidity breaks, and running feels effortless after the summer grind. This is one of the best running months — comfortable all day, not just at dawn.

Tip: October is race-cation month. The half marathon, cooler temps, and off-peak tourist pricing make this the ideal time for a running trip.

November

Highs: 72-76°F | Lows: 54-58°F | Rain: Low Thanksgiving brings the Omni Turkey Trot 5K and genuinely great running weather. The humidity finally drops below 75%, morning temps are in the 50s, and you can run at any time of day without heat being a factor. Fall foliage isn’t dramatic here (we’re subtropical), but the light is spectacular — golden, low-angle sun over the marsh and beach.

Tip: This is a sleeper month for visiting runners. Great weather, fewer tourists, lower hotel prices.

December

Highs: 64-68°F | Lows: 46-50°F | Rain: Low The Reindeer Run caps the year, and December conditions are prime. Cool mornings, mild afternoons, low humidity. If you’re from the northeast or midwest, December on Amelia Island feels like a gift. I do my best training in December — the air is light, the island is quiet, and the running is pure.

Tip: Cold fronts can push temperatures into the 30s with north winds. Pack a light jacket for morning runs, even in “sunny Florida.”

Best Time of Day by Season

Season Best Running Window Why
Winter (Dec-Feb) Any time; midday warmest Cool temps all day. Midday best if you dislike cold starts.
Spring (Mar-May) Morning or late afternoon April-May afternoons get warm. Mornings ideal.
Summer (Jun-Aug) Before 8 AM or after 6 PM Non-negotiable. Midday heat index exceeds 100°F.
Fall (Sep-Nov) Any time by October September still warm mornings. October onward, run whenever.

What to Wear by Season

  • Winter: Long sleeve or light jacket for early runs. Shorts are fine. Gloves for cold-front mornings.
  • Spring: Shorts and singlet. Sunscreen.
  • Summer: As little as possible. Light colors. Hat or visor. Sunscreen. Sunglasses.
  • Fall: Shorts and a tee. Light layer for November-December mornings.

Year-round constants: sunscreen, sunglasses, and a hat or visor. The Florida sun doesn’t take days off, even in January.

Planning Your Visit

If you can only pick one month: March. Perfect temperatures, low humidity, spring blooms, minimal rain.

If you want to race: February or October for the Amelia Island Half Marathon. Both offer great conditions and a well-organized event.

If you want solitude: November or early December. Great weather, fewer tourists, and the island feels like it belongs to the locals again.

If you want a challenge: July. The Firecracker 5K, the heat, the thunderstorms. You’ll earn every mile and have stories to tell.