Sources and rating methodology

Five colours as guidance for touring and outdoor activities.

What the numbers mean

Temperature and rain classes are qualitative editorial assessments from 1 to 5, not measurements. The scale runs from Poor (1) to Perfect (5). “Perfect” means a favourable seasonal window for the stated focus.

Rating = max(1, min(temperature class, rain class, sea class*) − storm adjustment). * Sea class: wind/sea conditions, otherwise 5.

Data status and evidence quality

36 of the 238 destinations have been checked against regional sources. 202 destinations use broader climate approximations. No globally uniform climate normals or monthly temperature/rainfall series have been imported. Complete country coverage does not mean complete local data validation.

Limitations

Elevation, coastal exposure and itinerary can change conditions considerably.
Winter sports, diving and wildlife watching may have different ideal seasons.
Monsoon onset, El Niño, extreme weather and future climate changes are not predicted. A cyclone season does not predict a storm on a specific day.
No assessment of current safety or travel costs.

Sources

Next data validation step

Select representative stations for each route, import local climate normals with documentation and verify the recommendations. Suitable starting points:

Sources reviewed: 2026-10-15 · Editorial project: The Good Season.