Augusta, Georgia
Augusta is usually warm and humid, with heat index and river conditions central to the read.
Typical race window
Monthly climate normal from 2016-2025 archive data.
20°C-30°C
15 km/h
70 km/h
27%
A typical day in September averages 3.1 mm of precipitation, with average gusts around 33 km/h. Treat this as planning context, not a live forecast.
Jan
13°C
Feb
17°C
Mar
21°C
Apr
25°C
May
29°C
Jun
32°C
Jul
33°C
Aug
32°C
Sep
30°C
Oct
25°C
Nov
19°C
Dec
15°C
The river swim depends on current, water quality and official guidance.
Warmth, humidity and wind can combine on exposed rural roads.
The run is often the hardest weather leg because humidity magnifies heat stress.
Live race-day forecast
This race page stays evergreen. For date, start time and expected segment durations, open the race-day planner with Augusta, Georgia prefilled.