Have you looked at a map of Colombia? It goes from an altitude of 0' to 19,500'. Many climate zones....
I mean, that's a great point. But despite the fact that Colombia is slightly larger than France and Spain combined (and that it has a couple of deserts), it has been ranked as the rainiest country in the world, ahead of islands like Sao Tome and Principe and the Solomons. So it follows that most of the country does get a fair chunk of rain, from the coasts to the mountains. Including, as Bleh said, the Bogota metropolitan area where Martinez is from, which interestingly enough has very similar average weather to Brussels in terms rainy days (190 days for Bogota vs 199 for Brussels), precipitation (841mm vs 852mm), sunshine (1629hrs vs 1546hrs) and relative humidity (80% for both). Although despite a
slightly higher altitude (8,700' vs 42'), Bogota is a bit warmer on average (13.7 C vs 10.5C ). And, of course, there are no seasons in Bogota, just rainy and a little cold and slightly less rainy and just as cold.
IMHO it was the wind and the fact that he was consistenty at the head of the peloton with his team that probably wore Martinez down a bit. Particularly given the fact that, as was pointed out by someone earlier, he's a 130lb climber. He looked a bit better today. In any case its glad to see him get a chance to go for the podium at Red Bull given the abundance of GC leaders on the team ATM. He's clearly not at the Vingegaard-level, and he can be inconsistent, but he gets criminally underrated at times, for a guy who podiumed not just Paris-Nice but the Giro just two years ago (and has also won the Dauphine and Basque Country).