Hana Weather can be surprisingly sunny. I am not kidding!
But I am talking about the small town of Hana, not what I call the Hana microclimate region on the map below, covering the entire Road to Hana area.
If Hana can enjoy a rather pleasing weather, it is because the clouds usually form uphill. The coastline is drier and the sun can shine more often.
Map of Maui's Microclimates - Hana Region
But great weather is precarious around Hana. Trade winds coming from the ocean bring tons of moist air on the windward side of Haleakala. Driving the famous Road to Hana is a sure ticket to experience rain on Maui. At least a few showers...
Remember that the Hana Highway, thanks to its location along the windward slopes of Haleakala, receives an annual average rainfall exceeding 300 inches (7,600 mm).
Whatever you may hear or read, never ever consider avoiding the Road to Hana because of the risks of rain.
This would be a huge mistake.
The Hana Highway is a must-see. You will remember it forever. Giants eucalyptus, stunning bamboo forests, deep evergreen valleys, breathtaking waterfalls... You should thank the rain for bringing to this part of the world some of the most amazing natural beauties you will ever have the chance to see.
Get wet and embrace it!
Here are the Hana latest weather conditions and forecast. If the conditions don't seem too good, don't worry. The weather vary a lot locally and the forecasts are just not precise enough to give you the real picture.
Clouds are more frequent on the north part of the Road to Hana. If it's cloudy around Hana, try heading south past Hana itself. The area gets dryer as you move toward South Maui, around the Haleakala volcano. Check road conditions before leaving though.
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