Due to horrible planning I ended up in Ecuador during the rainy season (or the time of year where you get a LOT of rain every day). I was wondering, if you knew of any places (besides the coast or Galapagos) where it doesn't rain AS MUCH during this time of year (March)? Also, I was considering doing a jungle tour or two - is that even recommendable during this time?
You've essentially asked where is it dry except where it's dry? Galapagos and coastal provinces are usually dry around this time of the year. The rest of the country expects moderately rainy weather in March which means a higher probability of rain. You may be lucky some days, while others not.
Jungle trips are possible and you should expect rain there any day of the year. Some times it just rains for short periods, other times for hours. Paths get really muddy and you will be often provided with rain boots but do bring your own waterproof jacket or poncho.
For less wet rain-forest, head as far north as possible. Tours starting from reserves around Coca are possibly your best bet. Note that venturing too far north is known to be unsafe, so be careful.
This is incorrect (Itai) on a couple of levels. I work in the northern coastal provinces and they are truly soaking at this time of year. See below, March, April, May is actually the wettest time of the year (this is the airport in Esmeraldas on the coast) in the northern coastal regions.
I'll give you my rule of thumb for the wet season on the coast, first time I've told anyone. Find a town called Bahia de Caraquez. North of this you are getting wetter and wetter in the wet season. South of this you are getting dryer and dryer in the wet season. Going north once you hit Pedernales you are out of the transition zone and fully in the wet zone. Going south once you hit Machalilla you are out of the transition zone and generally pretty dry after that.
So draw a line between Pedernales and Machalilla and write "transition". North of it "wet" and south of it "dry".
It is fascinating as it all depends if you are in the "Humboldt / Peru" current zone (cold dry) or the Equatorial Counter Current Zone (hot, wet, humid) and they shift, so this is why I have a transition zone. Bahia is right where those red lines end!