I thought the equatorial areas were some of the least affected by climate change (at least in terms of temperature)? If it were the primary driver of migration

I thought the equatorial areas were some of the least affected by climate change (at least in terms of temperature)? If it were the primary driver of migration from central America you'd expect to see it in other parts of the world at similar latitudes surely, e.g. Indonesia or equatorial Africa (*). I certainly agree climate change and rising sea levels will be responsible for mass migration (as it has been many times in human history), but it's not clear it's such a key factor currently. Interestingly I just read that Singapore is one near-equatorial location where temperatures have risen more than expected (and more than the global average), seemingly largely due the UHI effect. Needless to say, Singapore is not a common source of refugees. * South sudan is definitely a case where severe weather events including flooding has driven up emigration, but most of the refugees have ended up in Uganda which is on the equator!