Race-day weather · Wyndo for runners
Shamrock Marathon weather
March 21, 2027 · Virginia Beach, VA · scheduled start 7:30 AM (America/New_York). What the start usually feels like, year by year — and a live start-time read once the race is inside the 7-day forecast window.
Countdown
207 days to race day
The live race-day forecast unlocks 201 days from now, when March 21, 2027 enters the 7-day forecast window — a start-time read for the scheduled 7:30 AM start. Until then, live hourly data is not available; the history below shows what race morning usually looks like.
Typical start temp
45°F
median of 12 years
A warm year
54°F
75th percentile start temp
Rain at the start
17%
2 of 12 measured years
Race-morning weather history
Coastal early-spring race: ~48F starts at ~75% humidity, and WIND is the dominant variable — the oceanfront/boardwalk return miles frequently face strong headwinds. 2020 cancelled; 2021 ran as a spread-start format, not a normal race-day data point. Wyndo tracks what past editions of the race actually served up at the start hour — temperature, dew point, wind, and rain, and reads the live forecast for the start once race week arrives.
Median start temp
45°F
p75 (a warm year): 54°F
Median dew point
41°F
at the start hour
Rain at the start
17%
2 of 12 measured years
Warmest start
60°F
in 2025
Scroll sideways to see all columns.
| Year | Start temp | Dew point | Wind | Precip (start hr) | Day's high |
|---|---|---|---|---|---|
| 2026 | 54°F | 52°F | 10 mph | dry | 70°F |
| 2025 | 60°F | 56°F | 17 mph | dry | 65°F |
| 2024 | 56°F | 55°F | 12 mph | dry | 67°F |
| 2023 | 44°F | 32°F | 12 mph | dry | 48°F |
| 2022 | 58°F | 47°F | 7 mph | dry | 68°F |
| 2019 | 42°F | 30°F | 10 mph | dry | 47°F |
| 2018 | 42°F | 37°F | 10 mph | dry | 46°F |
| 2017 | 44°F | 41°F | 16 mph | 0.4 mm | 48°F |
| 2016 | 45°F | 40°F | 16 mph | 0.5 mm | 47°F |
| 2015 | 48°F | 42°F | 11 mph | dry | 51°F |
| 2014 | 45°F | 35°F | 11 mph | dry | 49°F |
| 2013 | 43°F | 40°F | 11 mph | dry | 54°F |
Each row is the weather at a real past edition's date and this race's current start hour (ERA5 reanalysis at the start line).
Your heat-adjusted goal for the marathon
The same cited model as the full calculator, pointed at this race: the median start-hour conditions this calendar slot has served up — climatology, not a forecast.
Your race-day brief
Skip the taper-week refresh spiral. Email briefs for the Shamrock Marathon: a start-hour outlook when race day enters the 7-day forecast window, updates only when it changes meaningfully, and a final look the day before.
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Race facts
- Start line
- 42nd Street & Atlantic Avenue, Virginia Beach oceanfront (intersection named on the official marathon page; coordinates an approximate geocode, not surveyed)
- Scheduled start
- 7:30 AM (America/New_York) — Official 2027 schedule: half + marathon combined start 7:30 AM ET Sunday. Single mass start with corrals. No wheelchair/elite gun published (a push-rim division appears in third-party 2026 results, no separate time). The Saturday 7:30 slot is the 8K — a different race at a different venue despite the identical clock time.
- Field size
- 2026 marathon finishers per FindMyMarathon (aggregator; official ChronoTrack results render client-side with no counts).
- Registration
- open (standard paid registration; no lottery language found)
Wyndo is not affiliated with or endorsed by the Shamrock Marathon (officially the "Yuengling Shamrock Marathon") or its organizers. Race names are used descriptively to identify the event; schedules and start times belong to the race — always confirm details on the official site. Weather guidance here is informational, never medical advice, and event alert flags on race day belong to the race's own medical team.