Any time of year is a good time to visit Hawaii. The average daytime temperature is  84 to 87 F and  nighttime 70 to 72 F. In the summer months daytime temperatures range from 76 to 80 F nighttime 60 to 64 F. The trade winds keep things comfortable year-round. Whale watching season begins in late December and ends in early May. Peak whale watching months are between January and early April. Hawaiian Wedding Place