If you are still bound to depart in April, you will find some wx that might help you pick your departure here:
2016 Weather to the Azores - Cruisers & Sailing Forums
Off course, only if the thread finds posters&readers. You can be one.
You may want to look up the earlier 2015 Azores wx thread too, that one at places sounds very alarming and there is some reason for that as you can find pageing thru the updates and reports therein.
There are no hard rules on when the wx settles to allow for less stressful sail. Just stay tuned and watch the systems as they roll over. Do not go if not deeply convinced your timing is fine for your boat's strength and your crew's skills.
Basically, there is only one waypoint - Horta (or San Miguel). Departing Antigua you will sail as wx allows. Some opt for more N, others sail a nearly direct course (we did, twice).
My clients will be departing throughout May and June. You can post me a PM if you have any problem finding clear and extensive weather data online. I can recommend daily check of NOAA chartlets and for actual route choice a daily download of a small grib file for your area.
Should you find you are a coplete wx null, hire a router or more experienced sailing colleague to give you the situation and any headups over email
, sms, phone
or whatever method you have there.
Have fun sailing. It is a beautiful stretch of ocean out there and well worth the time spent sailing it.
If you can, do NOT rush it. As ever.