Race-day weather · Wyndo for runners
Rock 'n' Roll San Diego Marathon weather
June 6, 2027 · San Diego, CA · traditional start around 6:15 AM (America/Los_Angeles) — not yet confirmed for 2027. What the start usually feels like, year by year — and a live start-time read once the race confirms its schedule and race week arrives.
Countdown
284 days to race day
The live race-day forecast unlocks 278 days from now, when June 6, 2027 enters the 7-day forecast window. Until then, live hourly data is not available; the history below shows what race morning usually looks like.
The 2027 schedule hasn't been published yet — both the date and start time shown here are carried from earlier editions and aggregators. We'll switch on the live start-time read when the race posts its schedule.
Typical start temp
62°F
median of 20 years
A warm year
63°F
75th percentile start temp
Rain at the start
0%
0 of 20 measured years
Race-morning weather history
Early-June coastal San Diego: "June gloom" marine layer typically gives cool overcast starts. Edition history irregular: 2020 cancelled, 2021 ran Oct 24 (exclude from June stats), 2026 ran May 31. Wyndo tracks what this calendar slot has actually served up at the start hour — temperature, dew point, wind, and rain — including the years when weather canceled or disrupted the race, and reads the live forecast for the start once the race confirms its schedule and race week arrives.
Median start temp
62°F
p75 (a warm year): 63°F
Median dew point
56°F
at the start hour
Rain at the start
0%
0 of 20 measured years
Warmest start
69°F
in 2025
Scroll sideways to see all columns.
| Year | Start temp | Dew point | Wind | Precip (start hr) | Day's high |
|---|---|---|---|---|---|
| 2026 | 65°F | 56°F | 1 mph | dry | 75°F |
| 2025 | 69°F | 61°F | 3 mph | dry | 80°F |
| 2024 | 60°F | 56°F | 3 mph | dry | 69°F |
| 2023 | 61°F | 56°F | 2 mph | dry | 72°F |
| 2022 | 63°F | 58°F | 3 mph | dry | 76°F |
| 2021 | 61°F | 54°F | 2 mph | dry | 72°F |
| 2020 | 63°F | 56°F | 4 mph | dry | 74°F |
| 2019 | 60°F | 55°F | 4 mph | dry | 67°F |
| 2018 | 63°F | 59°F | 3 mph | dry | 79°F |
| 2017 | 63°F | 60°F | 3 mph | dry | 73°F |
| 2016 | 61°F | 56°F | 4 mph | dry | 77°F |
| 2015 | 62°F | 58°F | 4 mph | dry | 78°F |
| 2014 | 60°F | 47°F | 1 mph | dry | 81°F |
| 2013 | 65°F | 61°F | 3 mph | dry | 73°F |
| 2012 | 63°F | 59°F | 2 mph | dry | 71°F |
| 2011 | 56°F | 52°F | 1 mph | dry | 74°F |
| 2010 | 66°F | 63°F | 2 mph | dry | 76°F |
| 2009 | 62°F | 56°F | 1 mph | dry | 72°F |
| 2008 | 60°F | 55°F | 3 mph | dry | 72°F |
| 2007 | 62°F | 57°F | 1 mph | dry | 71°F |
Slot climatology: each row is the weather at this race's usual calendar slot and start hour (ERA5 reanalysis at the start line) — including years when the edition was canceled or moved. A computed slot date is not a claim the race ran that day.
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
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Race facts
- Start line
- Sixth Ave & Quince St, west edge of Balboa Park (official 2026 Final Info PDF; the venue has moved within the Sixth Ave corridor historically). Coordinates approximate.
- Traditional start (not confirmed for 2027)
- 6:15 AM (America/Los_Angeles) — Carried from the official 2026 Final Info PDF: marathon & half share one start — wheelchair ('Wheels') gun 6:10 AM, elite corral E and corral 1 both released 6:15 (first mass start), corrals ~every 2.5 min through ~7:17. Saturday 5K separate, 7:00 AM. 2027 times not yet published.
- Field size
- Marathon finishers, 2026 edition (May 31), per FindMyMarathon (aggregator — official Sportstats results expose no totals). 30,000+ reported across the full weekend.
- Registration
- open (tiered pricing; no lottery/qualifier)
Wyndo is not affiliated with or endorsed by the Rock 'n' Roll San Diego Marathon (officially the "Rock 'n' Roll Running Series San Diego") 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.