Weather: Jacksonville Marathon
Historical weather data for race day in December. Use this to plan your race strategy, clothing, and hydration.
🌡️
19°C
Temperature
Range: 14°C – 24°C
💧
65%
Humidity
Moderate
🌧️
35%
Rain Chance
Possible — check forecast
📅
December
Typical race month
Usually on a Sunday
📝 Conditions
December in Jacksonville offers mild, pleasant running weather with cool mornings and comfortable afternoon temperatures. Occasional rain is possible but typically light; humidity is moderate compared to summer months.
👟 What to Wear
Light cap or visor
Shield from sun and heat
Sunscreen SPF 30+
19°C means sun exposure risk
Extra hydration plan
Increase fluid intake in heat
💧 Hydration Strategy
Before the Race
Normal hydration. Drink to thirst in the 24 hours before. Avoid over-hydrating.
During the Race
Drink at aid stations every 3-4km. Alternate water and sports drink.
After the Race
Rehydrate within 30 minutes of finishing. A drink with electrolytes and some protein helps recovery.
Get Your Training Plan
Free, personalized for this race
Get race tips & guides in your inbox
Race tips, training guides, and the latest from 500+ races worldwide.