Look at this disaster of a forecast...... OH NOOOO!!! The arrows are going every direction, looks like someone is really confused? Maybe yes, Maybe no...... Someone once told me, "the only people that try to predict the weather around here are fools or out of towners!" I always loved that line and use it all the time. Maui is quite unique in how the wind blows- as long as you have the right flow pattern of a North/NorthEast breeze it normally increases and accelerates through the valley between Haleakala and the West Maui Mountains. When the wind is very on-shore, that means you might venture over to Kihei as the wind increases through the valley and hits the south side with more vengeance! It has more time to "funnel" between the mountains and increases in a side/side off direction. Even though the water is flat with small chop you can still get out there for a good time. If waves are your thing, waiting around till 2pm at Kanaha for the strongest wind of the day may only let you get schlogging out on a 6.2 on your SUP board- plenty of fun there. If that doesn't do it for you, jump in the car to Kihei and you could be overpowered on your 4.7! There are a couple places I look to see what the conditions "MIGHT" do during the course of the week- Here they are:
This one below tells me the flow pattern and direction:
http://www.windguru.cz/int/index.php?sc=53

This one tells me a little more of what is going on:
http://www.hawaiiweathertoday.com/glenns-daily-weather-narrative/

For Daily updates and live action this works perfectly:
http://www.mauiwindcam.com/streaming/kanaha/

To see how the conditions look at Hookipa, this is a good one when it is working:
http://www.mamasbeachcam.com