Simulator · One place, one month, one calendar

Journey Simulator

Choose a place, a month, the days you have and how you travel. The simulator lays out a day-by-day timeline with temperatures, daylight, sleeping altitude, effort and cost, and flags the days where the model gets nervous.

This is the signature simulator: it pulls the climate, daylight, altitude, budget and risk models together for one trip. The timeline follows the sample plan on the place page, stretched or compressed to your days, and every day carries the month’s normals, the sunrise and sunset for that latitude and date, the sleeping altitude and a cost line for your style.

Simulators

What the month does to the placeClimate SimulatorHighs, lows and rain days for all twelve months of any place, with a feels-like line, a clothing verdict and a side-by-side comparison of up to three places for the month you can travel. Open

Sunrise, sunset and the polar casesDaylight SimulatorAny latitude, any date: sunrise, sunset, day length, civil twilight and the golden hours, drawn as an arc. It knows about the midnight sun and the polar night, and it shows how fast the day changes around your dates. Open

Oxygen, acclimatisation and the third nightAltitude SimulatorEnter where you sleep each night, or pick a place’s profile. The simulator computes the oxygen available at each altitude, checks every jump against the acclimatisation rules and gives a risk index for acute mountain sickness with the nights that need care. Open

The Simulation Brief

One place, one simulator, one honest number. Every second Sunday.

No newsletter theatre. A short e-mail with the place we modelled, what the model said and what the ground said back.