USA Women's Half Marathon Florida Keys weather.

Typically 22°C on race morning; rain in 2 of the last 10 years. Race morning (07:00 to 11:00 local time) in Islamorada on race day in each of the last 10 years; the 2027 race is on 6 Feb 2027.

Typical
22°C (72°F)
race-morning average
Coolest
17°C (63°F)
lowest reading, 07:00–11:00
Warmest
24°C (75°F)
highest reading, 07:00–11:00
Wet years
2 of 10
rain, drizzle or worse
Humidity
80%
typical
Wind
22 km/h
typical, at 10 m

Race morning, 07:00–11:00

Year by year

Race dayAverageLow–highHumidityWindRainConditions
7 Feb 202618°C (64°F)18°C (64°F)–18°C (64°F)79%20 km/h0.0 mmClear
8 Feb 202524°C (75°F)24°C (74°F)–24°C (76°F)79%21 km/h0.0 mmMainly clear
3 Feb 202418°C (65°F)17°C (63°F)–19°C (66°F)81%13 km/h0.0 mmMainly clear
4 Feb 202322°C (71°F)21°C (69°F)–23°C (73°F)85%32 km/h0.1 mmPartly cloudy
5 Feb 202224°C (74°F)23°C (74°F)–24°C (75°F)80%13 km/h0.0 mmClear
6 Feb 202123°C (74°F)23°C (73°F)–24°C (75°F)90%25 km/h0.2 mmMainly clear
8 Feb 202020°C (68°F)20°C (67°F)–20°C (69°F)75%26 km/h0.0 mmOvercast
9 Feb 201923°C (74°F)23°C (74°F)–24°C (75°F)75%24 km/h0.3 mmLight drizzle
3 Feb 201823°C (73°F)22°C (72°F)–23°C (73°F)72%28 km/h0.0 mmMainly clear
4 Feb 201721°C (70°F)21°C (70°F)–22°C (71°F)92%20 km/h0.4 mmLight drizzle

Each row is the race's date that year where we know it, else the same weekday nearest its usual date. Temperatures and humidity are averaged over 07:00 to 11:00 local time, rain is the total over those hours, and conditions are the commonest over the morning. The half marathon starts at 07:00.

Kit and pacing

What it means

  • Warm: adjust your goal pace

    Around 22°C on race morning costs most runners time. Plan to run a few seconds per kilometer slower than in cool weather, take on fluid and salt at every station, and wear light colors and sun cream.

  • Humid mornings

    Humidity is usually around 80%, so sweat evaporates slowly and it feels warmer than the thermometer says. Pace on effort, not just the watch.

  • Expect wind

    Wind was 22 km/h on a typical morning here. Run in a group on exposed stretches, and aim for even effort rather than even splits: time lost into a headwind isn't all won back with it behind you.

General guidance from past years' numbers. Check the forecast in race week.

The course 2027 dates and entry

Weather data by Open-Meteo.com, from its historical weather archive (CC BY 4.0).

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