Race-day weather · Wyndo for runners
Sydney Marathon weather
August 30, 2026 · Sydney, Australia · scheduled start 6:30 AM (Australia/Sydney). 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
46 days to race day
The live race-day forecast unlocks 40 days from now, when August 30, 2026 enters the 7-day forecast window — a start-time read for the scheduled 6:30 AM start. Until then, live hourly data is not available; the history below shows what race morning usually looks like.
This race recently moved to a new part of the calendar, so past editions ran in a different season — the history below is real but isn't a stand-in for this date's typical conditions. The live start-time read is the honest number once race week arrives.
Race-morning weather history
Late-winter Sydney ~8-15C at the 6:30 AM start. The pre-2025 September history over-represents warmer spring mornings than the current late-August slot, so it is shown as past-edition context, not a late-August forecast. 2020/2021 cancelled. 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
48°F
p75 (a warm year): 51°F
Median dew point
42°F
at the start hour
Rain at the start
0%
0 of 20 measured years
Warmest start
64°F
in 2005
| Year | Start temp | Dew point | Wind | Precip (start hr) | Day's high |
|---|---|---|---|---|---|
| 2025 | 40°F | 35°F | 4 mph | dry | 67°F |
| 2024 | 46°F | 32°F | 11 mph | dry | 61°F |
| 2023 | 52°F | 42°F | 5 mph | dry | 90°F |
| 2022 | 51°F | 42°F | 6 mph | dry | 72°F |
| 2019 | 43°F | 42°F | 5 mph | dry | 83°F |
| 2018 | 47°F | 26°F | 12 mph | dry | 62°F |
| 2017 | 38°F | 37°F | 4 mph | dry | 65°F |
| 2016 | 53°F | 50°F | 1 mph | dry | 60°F |
| 2015 | 50°F | 48°F | 4 mph | dry | 65°F |
| 2014 | 49°F | 45°F | 5 mph | dry | 67°F |
| 2013 | 44°F | 42°F | 4 mph | dry | 75°F |
| 2012 | 45°F | 44°F | 4 mph | dry | 69°F |
| 2011 | 59°F | 33°F | 9 mph | dry | 84°F |
| 2010 | 48°F | 42°F | 4 mph | dry | 64°F |
| 2009 | 49°F | 47°F | 4 mph | dry | 82°F |
| 2008 | 51°F | 49°F | 3 mph | dry | 74°F |
| 2007 | 44°F | 39°F | 5 mph | dry | 65°F |
| 2006 | 48°F | 47°F | 3 mph | dry | 71°F |
| 2005 | 64°F | 56°F | 11 mph | dry | 73°F |
| 2004 | 46°F | 30°F | 10 mph | dry | 61°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).Those editions ran in a different calendar slot than the upcoming one, so they're past-edition context — not a forecast for this year's date (see the note above).
Your heat-adjusted goal for the marathon
The same cited model as the full calculator, pointed at this race: this race's past editions ran in a different calendar slot, so we don't use them as a start-hour estimate for this date — enter expected conditions in the full calculator.
Racing this one?
Skip the taper-week refresh spiral. Wyndo emails you the Sydney Marathon race-day outlook when it enters the 7-day forecast window, an update only when it changes meaningfully, and a final look the day before — quiet otherwise.
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Race facts
- Start line
- Miller St, North Sydney, alongside St Leonards Park (Major-era course; the old Bradfield Park start is STALE); finish at the Opera House forecourt
- Scheduled start
- 6:30 AM (Australia/Sydney) — Official 2026: elite wheelchair 6:15, elites/mass from 6:30 (Group 1 6:31, Group 2 7:03, Group 3 7:41; rolling). Fine waves provisional until the 2026 event guide. Late Aug = AEST, no DST. 7th Abbott World Marathon Major (announced Nov 3, 2024).
- Field size
- ~32,964 runners (Major-era edition)
- Registration
- ballot (2026 ballot closed Oct 2025) + charity
Wyndo is not affiliated with or endorsed by the Sydney Marathon (officially the "TCS Sydney Marathon presented by ASICS") 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.