AravisTrail weather.
Typically 20°C on race morning; rain in 2 of the last 10 years. Race morning (07:00 to 11:00 local time) in Thônes on race day in each of the last 10 years; the 2027 race is on 19 Jun 2027.
- Typical
- 20°C (68°F)
- race-morning average
- Coolest
- 14°C (57°F)
- lowest reading, 07:00–11:00
- Warmest
- 29°C (84°F)
- highest reading, 07:00–11:00
- Wet years
- 2 of 10
- rain, drizzle or worse
- Humidity
- 69%
- typical
- Wind
- 4 km/h
- typical, at 10 m
Race morning, 07:00–11:00
Year by year
| Race day | Average | Low–high | Humidity | Wind | Rain | Conditions |
|---|---|---|---|---|---|---|
| 20 Jun 2026 | 26°C (79°F) | 22°C (72°F)–29°C (83°F) | 51% | 4 km/h | 0.0 mm | Clear |
| 21 Jun 2025 | 25°C (77°F) | 22°C (72°F)–27°C (80°F) | 61% | 5 km/h | 0.0 mm | Clear |
| 22 Jun 2024 | 15°C (58°F) | 14°C (57°F)–15°C (59°F) | 90% | 4 km/h | 2.7 mm | Drizzle |
| 17 Jun 2023 | 21°C (70°F) | 17°C (63°F)–23°C (74°F) | 60% | 4 km/h | 0.0 mm | Mainly clear |
| 18 Jun 2022 | 26°C (79°F) | 22°C (71°F)–29°C (85°F) | 61% | 4 km/h | 0.0 mm | Clear |
| 19 Jun 2021 | 23°C (74°F) | 21°C (69°F)–26°C (79°F) | 69% | 5 km/h | 0.0 mm | Overcast |
| 20 Jun 2020 | 17°C (62°F) | 14°C (57°F)–19°C (65°F) | 69% | 4 km/h | 0.2 mm | Partly cloudy |
| 22 Jun 2019 | 18°C (64°F) | 16°C (61°F)–19°C (67°F) | 89% | 3 km/h | 0.5 mm | Light drizzle |
| 16 Jun 2018 | 19°C (66°F) | 16°C (60°F)–21°C (70°F) | 72% | 4 km/h | 0.0 mm | Partly cloudy |
| 17 Jun 2017 | 19°C (65°F) | 16°C (60°F)–21°C (71°F) | 70% | 5 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
Warm: adjust your goal pace
Around 20°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.
The weather varies a lot
Race mornings here have ranged by 12°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).