OCNJ Half Marathon weather.

Typically 17°C on race morning; rain in 2 of the last 10 years. Race morning (07:00 to 11:00 local time) in Ocean City on race day in each of the last 10 years; the 2027 race is on 3 Oct 2027.

Typical
17°C (63°F)
race-morning average
Coolest
11°C (52°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
13 km/h
typical, at 10 m

Race morning, 07:00–11:00

Year by year

Race dayAverageLow–highHumidityWindRainConditions
4 Oct 202617°C (63°F)17°C (62°F)–18°C (65°F)90%23 km/h7.5 mmRain
5 Oct 202517°C (63°F)13°C (56°F)–22°C (71°F)84%5 km/h0.0 mmClear
6 Oct 202418°C (64°F)14°C (56°F)–21°C (70°F)79%4 km/h0.0 mmClear
1 Oct 202318°C (65°F)15°C (60°F)–21°C (71°F)82%15 km/h0.0 mmClear
2 Oct 202217°C (63°F)17°C (63°F)–18°C (64°F)87%34 km/h1.6 mmLight drizzle
3 Oct 202121°C (70°F)18°C (64°F)–24°C (76°F)82%10 km/h0.0 mmClear
4 Oct 202015°C (60°F)11°C (53°F)–19°C (66°F)65%10 km/h0.0 mmMainly clear
6 Oct 201921°C (69°F)20°C (68°F)–21°C (71°F)66%22 km/h0.0 mmOvercast
30 Sep 201818°C (65°F)16°C (61°F)–21°C (70°F)76%9 km/h0.0 mmClear
1 Oct 201714°C (57°F)11°C (52°F)–18°C (64°F)75%18 km/h0.0 mmClear

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 08:30.

Kit and pacing

What it means

  • Warm: adjust your goal pace

    Around 17°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 13 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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