México City is located on México's high central plateau and because of the high altitude (over 7000 feet) the city enjoys a relatively mild climate all year. Summer and winter both are generally mild. The evenings can get cool enough for a jacket all year long, so be prepared. Afternoon rains come during the summer months, June to September. Usually the rain lasts for a few hours after which the sun comes out and the air is much cleaner. October to May are, most often, the driest months and February to May are the warmest months.
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So it looks like it will be very mild and feeling great. I just hope there is not a lot of humidity like there is here at home...
