Hiking in May

Where the days are dry and cool enough to walk all day, measured over ten years. In May, 6 places are good and 6 fair.

Everywhere

Santiago Chile good 27 of 31 days dry and 10–27 °C · 19°C by day
The Grand Canyon United States good 26 of 31 days dry and 10–27 °C · 21°C by day
Cape Town South Africa good 24 of 31 days dry and 10–27 °C · 21°C by day
Vancouver Canada good 23 of 31 days dry and 10–27 °C · 17°C by day
Yosemite United States good 22 of 31 days dry and 10–27 °C · 20°C by day
Anchorage United States good 21 of 31 days dry and 10–27 °C · 13°C by day
Seoul South Korea fair 20 of 31 days dry and 10–27 °C · 23°C by day
Srinagar India fair 20 of 31 days dry and 10–27 °C · 22°C by day
Almaty Kazakhstan fair 18 of 31 days dry and 10–27 °C · 23°C by day
Leh India fair 18 of 31 days dry and 10–27 °C · 13°C by day
Asheville United States fair 17 of 31 days dry and 10–27 °C · 23°C by day
Zion United States fair 16 of 31 days dry and 10–27 °C · 26°C by day

How a month is tested for hiking

A walking day has a daytime high of 10–27 °C, feels no hotter than 30 °C, and is not a rainy day.
A month is good where 2 days in 3 are walking days, and fair where 1 in 2 are.
Counted day by day over ten years of measured climate at the place itself, not up on the trails, where it is cooler.

A test on measured figures, the same at every place and from every city: the same month always gives the same answer. It is "good" or "fair", and a month that passes neither is simply not listed. It is separate from the month's own verdict, which also weighs holidays, crowds and fares.

Hiking, other months

← April · Everywhere in May · June →

Measured at each place's own point, where its visitors stay, not up on the trails: a mountain path is about 6.5 °C cooler for every 1,000 m it climbs.