2-5 foot
1-3 foot
1-4 foot
2-4 foot

Small northwest swells will continue through this weekend, peaking at only waist to head-high levels. There will also be small short period north-northwest swells early next week, followed by a new small longer period west-northwest swell on Wednesday and Thursday. Expect a bump in surf heights along south facing shores from this weekend through early next week. A broad low southeast of New Zealand should provide us with a nice south swell arriving next weekend. Small windswell will also be found along the east and northeast facing shores through much of the forecast period.

Hawaii Wave Height Model

Hawaii Swell Period Model
Hawaii Swell Height Model

Tide Predictions

Low tide at Kahului was 0.6 foot at 5:07 AM early this morning, rising to a high of 0.8 foot at 9:31 AM this morning, then dropping to a low of 0.5 foot at 2:38 PM early this afternoon, before once again rising to a high of 1.9 foot at 10:14 PM late this evening

The sunrise was at 05:53 am this morning and will set at 06:51 pm this evening. The Moon is currently 23 days old, and is in a Last Quarter phase. The next Waning Crescent will occur at 7:31 PM on Friday, May 6th.

Hawaii Wind Report

Maui Weather

Wind: n/a at 0 mph
current observations as of 1am December 17th, 2018

Weather Outlook for Saturday

Expect the trade winds to weaken slightly on Saturday as a weak front passes to the north of the islands. A new surface high will build north of the region starting Sunday, which will increase trade winds again from late this weekend through the middle of next week. Trade showers will remain focused over the windward sides of the islands through next week. An increase in trade showers is possible over parts of the state around mid-week.

The rounded western end of a surface ridge is located about 380 miles north of Lihue at dusk this evening. The relatively tight pressure gradient south of this feature is maintaining locally breezy trade winds across the islands for at least a few more hours. However, a surface front located nearly 600 miles north-northwest of Lihue is moving toward the east-southeast. As a result, it will cause the surface ridge to gradually erode from the west over the next 12 to 24 hours. Therefore, the pressure gradient is expected to become weaker by early Saturday morning. This will likely cause the trade wind speeds to diminish during the next 24 hours.

Aloft, water vapor imagery suggests that the islands are under mid-tropospheric ridging. There is also upper level subsidence directly above most of the state this evening. This is contributing to the stable atmospheric conditions that are currently being observed across the island chain. Note that satellite imagery shows an area of low clouds and showers moving toward the windward Big Island and Maui. There may be a slight increase in trade showers over the windward sides of the eastern islands from later tonight into early Saturday. Otherwise, expect brief trade showers over some of the windward facing slopes and higher terrain on the smaller islands from Molokai to Oahu.

By Sunday, the forecast models depict a new surface high building behind the front as it moves to a position far north of the islands. This will again tighten the pressure gradient over the islands, with trades rebounding to locally breezy speeds. Expect trade showers to remain focused over windward and mauka sections of the state next week. The model guidance also shows that the remnant moisture associated with the front may eventually be carried back toward islands by the trade wind flow. If so, expect this enhanced moisture to reach the islands around Wednesday, which may cause an increase in trade showers starting mid-week.

Looking toward the end of next week, the forecast models appear to agree that a late-season front will slowly approach Kauai from the northwest from Wednesday through Thursday. However, the GFS model appears to push this front closer to Kauai on Friday than the ECMWF model. Until these model differences are resolved in future runs, there remains a great deal of uncertainty in regards to the weather we might expect as we approach next weekend. Regardless of the actual scenario taut occurs, it is likely that the trade winds will weaken by Friday, especially over the western end of the state. In fact, the flow will likely shift a bit more to the southeast ahead of the front. If this develops, it suggests that warm and muggy conditions may develop across portions of the region as we head into next weekend.

Central Valley (Kahului, Spreckelsville):

Mostly sunny. Breezy. Isolated showers in the morning. Highs 83 to 88. Northeast winds 10 to 20 mph. Chance of rain 20 percent.

Leeward West (Lahaina, Ka`anapali):

Breezy. Mostly sunny with isolated showers. Highs 79 to 87. Northeast winds 10 to 20 mph. Chance of rain 20 percent.

Windward West (Wailuku, Waiehu):

Breezy. Partly sunny with scattered showers. Highs 68 to 84. East winds 15 to 20 mph. Chance of rain 50 percent.

Windard Haleakala (Hana, Haiku, Makawao):

Partly sunny with scattered showers. Highs around 82 at the shore to around 67 at 5000 feet. East winds 10 to 15 mph with gusts to 30 mph. Chance of rain 50 percent.

Leeward Haleakala (Kihei, Wailea, Makena):

Mostly sunny. Isolated showers in the afternoon. Highs around 88 at the shore to around 72 upcountry. West winds around 10 mph with gusts to 30 mph. Chance of rain 20 percent.

Haleakala Summit

Mostly sunny with scattered showers. Highs around 63 at the visitor center to around 57 at the summit. East winds 10 to 15 mph. Chance of rain 50 percent.

Photo of the Day

Surf Photo of the Day - April 30th, 2016