Selected representative ERA5-Land grid cell at about 1,259 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 → | 19.9°C | ≈ 3.4 | 0% | 11 h 12 min | Best month |
| February → | 22.2°C | ≈ 2.5 | 0% | 11 h 30 min | Best month |
| March → | 25.2°C | ≈ 4.7 | 0% | 12 h 00 min | View month |
| April | 26.3°C | ≈ 11.9 | 0% | 12 h 36 min | No recommendation |
| May → | 24.4°C | ≈ 25.1 | 0% | 13 h 00 min | View month |
| June → | 23.0°C | ≈ 28.6 | 0% | 13 h 12 min | View month |
| July → | 22.4°C | ≈ 29.9 | 0% | 13 h 06 min | View month |
| August → | 22.2°C | ≈ 30.1 | 0% | 12 h 42 min | View month |
| September → | 22.3°C | ≈ 28.3 | 0% | 12 h 12 min | View month |
| October → | 21.9°C | ≈ 20.3 | 0% | 11 h 42 min | View month |
| November → | 21.0°C | ≈ 8.2 | 0% | 11 h 18 min | View month |
| December → | 19.5°C | ≈ 4.2 | 0% | 11 h 00 min | Best month |
Historical climate at one selected model cell. Higher routes, sheltered valleys and exposed ridges can differ substantially.
Model elevation: 1,259 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: 18.6, 98.5
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.
18.6, 98.5 · 1,259 m
The record for these months is complete. They carry no hiking score because at least one critical component is at or below 20, and we would rather say so here than publish a weak recommendation.
Doi Inthanon sits at about 1,259.3 metres and has no closed hiking season. In all 11 scored months, temperature, rainfall and snow stay inside the limits at which we withhold a recommendation. Temperature moves 6.8 degrees across the year, from 20 in December to 26 in April.
Although the whole year clears the recommendation gate, the months are not interchangeable. Rain falls on about 9 percent of days in February, compared with 97 percent in August. Hikers prioritising drier conditions should start with February, then compare its temperature with April.
In April the hiking-window temperature reaches 26 degrees. We withhold April because sustained heat makes a walk a question of time of day and water, rather than of season.
The strongest scored month is January: about 20 degrees in the hiking window, rain on 11 percent of days, and 11 hours of daylight.
Every figure comes from one selected ERA5-Land model grid cell at 18.60, 98.50, 1,259.3 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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