Marathon to Marathon weather.
Typically 15°C on race morning; dry every year. Race morning (07:00 to 11:00 local time) in Marathon on race day in each of the last 10 years; the 2027 race is on Date TBA · expected Oct 2027.
- Typical
- 15°C (59°F)
- race-morning average
- Coolest
- 3°C (37°F)
- lowest reading, 07:00–11:00
- Warmest
- 22°C (72°F)
- highest reading, 07:00–11:00
- Wet years
- 0 of 10
- rain, drizzle or worse
- Humidity
- 65%
- typical
- Wind
- 8 km/h
- typical, at 10 m
Race morning, 07:00–11:00
Year by year
| Race day | Average | Low–high | Humidity | Wind | Rain | Conditions |
|---|---|---|---|---|---|---|
| 25 Oct 2025 | 13°C (56°F) | 11°C (53°F)–18°C (65°F) | 50% | 9 km/h | 0.0 mm | Clear |
| 26 Oct 2024 | 16°C (61°F) | 14°C (58°F)–20°C (67°F) | 71% | 11 km/h | 0.0 mm | Clear |
| 21 Oct 2023 | 19°C (65°F) | 17°C (63°F)–22°C (71°F) | 32% | 3 km/h | 0.0 mm | Overcast |
| 22 Oct 2022 | 16°C (61°F) | 13°C (56°F)–21°C (70°F) | 53% | 10 km/h | 0.0 mm | Overcast |
| 23 Oct 2021 | 16°C (61°F) | 14°C (57°F)–20°C (68°F) | 81% | 7 km/h | 0.0 mm | Clear |
| 24 Oct 2020 | 9°C (48°F) | 8°C (46°F)–10°C (51°F) | 68% | 3 km/h | 0.0 mm | Clear |
| 26 Oct 2019 | 6°C (42°F) | 3°C (37°F)–11°C (52°F) | 28% | 9 km/h | 0.0 mm | Clear |
| 27 Oct 2018 | 13°C (56°F) | 11°C (52°F)–17°C (63°F) | 78% | 6 km/h | 0.0 mm | Clear |
| 21 Oct 2017 | 16°C (62°F) | 15°C (58°F)–20°C (68°F) | 80% | 4 km/h | 0.0 mm | Clear |
| 22 Oct 2016 | 13°C (56°F) | 12°C (54°F)–17°C (62°F) | 61% | 9 km/h | 0.0 mm | Clear |
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.
Kit and pacing
What it means
Mild: start a touch conservatively
Around 15°C feels fine at the start but warms up by the second half. Drink from the early stations rather than waiting until you're thirsty, and wear the lightest kit you have.
Have a warm-day plan
In the warmest of these years it reached 22°C by late morning. Decide in advance how much you'd slow down if the forecast is warm, rather than on the course.
It can be cold
The coolest morning here dropped to 3°C. Pack gloves and a throwaway layer even if the forecast looks kind.
The weather varies a lot
Race mornings here have ranged by 13°C from year to year. Pack for both, and settle your kit and pacing from the forecast in the last few days.
General guidance from past years' numbers. Check the forecast in race week.
Weather data by Open-Meteo.com, from its historical weather archive (CC BY 4.0).