The calendarThe cool season
ฤดูหนาว
November to February, and everyone knows it.
Jomis 9 · CC BY-SA 4.0What it is
Dry, clear, cold at altitude before dawn, and the busiest and most expensive months on the circuit.
The long version
The measured air is good without being the year's best: Pai's November mean is 8.1 µg/m³ and December 9.9, against 3.0 in July. It is the dryness rather than the cleanliness that makes the season.
What is actually here that is not here otherwise: the sea of mist at dawn off the ridges, which needs cold still air and is a November-to-January phenomenon; the Tithonia bloom above Khun Yuam in November; and dry tarmac on every descent.
Inference — the cost is crowding and price, and the one real riding hazard is the low afternoon sun, which is worst at exactly this time of year on a westward leg. Mornings are genuinely cold on the high sections before nine — this is the one season on this circuit where a rider is underdressed rather than overheating.
Runs with
- eventThe Bua Tong bloom — The November thing worth timing for.
- hazardThe low sun — The season's own hazard.
- watWat Phra That Doi Kong Mu — Where the mist is watched from.
Named here by
- stopHuai Nam Dang — The months the mist happens.
- stopPang Ung — The only season the mist happens.
- watWat Phra That Doi Kong Mu — When the mist is there.
- stayThe hut with no wall on the valley side — The months it is cold before dawn.
- kitWhat to wear — The season that needs the extra layer.
- eventThe Bua Tong bloom — The season it opens.
- eventLoi Krathong and Yi Peng — The season it opens.
- storyThe smoke — The season everyone books, and why.
Where each claim comes from
| Field | Tier | Source | Note |
|---|---|---|---|
| default | harvested | Open-Meteo Air Quality API (Copernicus CAMS) — Open-Meteo | |
| text.story | inference | ||
| text_th | inference | written in Thai by this project, not machine-translated |
Sources
- Open-Meteo Air Quality API (Copernicus CAMS) — Open-Meteo
- Monsoon — Wikipedia (en)
- Tithonia diversifolia — Wikipedia (en)
cited Cited — a named source, linked · harvested Harvested — fetched from an open dataset, with its licence · tradition Tradition — general knowledge of the tradition, hedged · inference Inference — this project's own reasoning from the above · field Field — someone stood there