I am thinking too your plant is feeling just some very slight chill in the air, though not as discernible for us. Remember it is still winter time in Siberia you are getting some trade winds there too, so Guam in the same latitude as the Philippines, it is getting some cooler temps at this time. In the Phils we call it it Amihan, means cooler winds from the Northeast. I read yesterday in our online newspaper, Phils had coolest temp so far last Monday. But their cool temps is really just comfortably warm.
Maybe that is enough for Arabicum to feel it is time to do some nap time.
