March and April are still relatively dry months but getting into May and June you’ll find afternoon and evening rainstorms are becoming more frequent which, to be honest, is no bad thing.
July and August continue in the same vein weather-wise but will also attract a few more families thanks to Europeans and North Americans breaking up for the summer hols. If you do come at this time, the Pacific coast will be slightly drier than the Caribbean. This is also the start of peak turtle nesting season in Tortuguero - it continues right through to October.
November will still find a few mild showers but as the year draws to a close you’ll find the dry season starting in earnest during December with an abundance of gorgeous green foliage to match the ever exciting animal encounters.