Selected representative ERA5-Land grid cell at about 432 m; not a claim about every route across the region.
The existing model's best months. Compare the conditions below before choosing a route.
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| Month | Hiking-hour temperature | Wet days per month | Days with modelled snow | Daylight | Season guide |
|---|---|---|---|---|---|
| January → | 21.6°C | ≈ 5.5 | 0% | 14 h 24 min | View month |
| February → | 21.1°C | ≈ 4 | 0% | 13 h 30 min | View month |
| March → | 18.6°C | ≈ 4.9 | 0% | 12 h 18 min | Best month |
| April → | 15.3°C | ≈ 6.1 | 0% | 11 h 06 min | Best month |
| May → | 11.7°C | ≈ 8.1 | 0% | 10 h 06 min | View month |
| June → | 9.1°C | ≈ 10.5 | 0% | 9 h 36 min | View month |
| July → | 8.4°C | ≈ 11.3 | <0.1% | 9 h 54 min | View month |
| August → | 9.4°C | ≈ 12.5 | 0% | 10 h 42 min | View month |
| September → | 11.7°C | ≈ 12.1 | 0% | 11 h 48 min | View month |
| October → | 14.3°C | ≈ 10.1 | 0% | 13 h 00 min | Best month |
| November → | 16.9°C | ≈ 8.3 | 0% | 14 h 06 min | View month |
| December → | 19.4°C | ≈ 6.6 | 0% | 14 h 42 min | View month |
Historical climate at one selected model cell. Higher routes, sheltered valleys and exposed ridges can differ substantially.
Model elevation: 432 m · Historical period: 1991–2025
Trail wind is not available here. This model does not resolve exposed ridges or gusts; check a local mountain forecast.
Selected cell: -37.2, 142.5
Temperature sampling window (local time, limited to daylight): 08:00–18:00.
A wet day has at least 1 mm of total precipitation (including snow water equivalent). It may rain for only part of the day.
A snow day meets either model threshold: 10% snow cover or 2 cm snow depth.
Choose a specific route and check its distance, ascent, difficulty, current access and forecast. These are not supplied by the climate model.
The monthly value represents the selected representative ERA5-Land grid cell. It deliberately does not pretend to describe every route across the region.
-37.2, 142.5 · 432 m
Grampians sits at about 431.9 metres and has no closed hiking season. In all 12 scored months, temperature, rainfall and snow stay inside the limits at which we withhold a recommendation. Temperature moves 13.2 degrees across the year, from 8 in July to 22 in January.
Although the whole year clears the recommendation gate, the months are not interchangeable. Rain falls on about 14 percent of days in February, compared with 40 percent in September. Hikers prioritising drier conditions should start with February, then compare its temperature with January.
The strongest scored month is April: about 15 degrees in the hiking window, rain on 20 percent of days, and 11 hours of daylight.
Every figure comes from one selected ERA5-Land model grid cell at -37.20, 142.50, 431.9 metres, averaged over 1991 to 2025. It describes that point rather than every route in the region, and it is not a forecast. Wind is coarse 10 metre grid wind, not a statement about exposed paths or gusts.
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