8-12+ foot
3-5+ foot
1-4 foot
1-4 foot

A High Surf Advisory for most north and select exposed northwest facing shores is in effect through Saturday due to a long period northwest swell, with surf expected to diminish below advisory levels tonight as the swell gradually drops. A long period west-northwest swell is expected to arrive Tuesday, peaking Wednesday with peak surf heights near advisory levels along exposed north and select west facing shores before gradually diminishing Thursday and Friday. A small south swell is possible around Friday into the weekend. Seas are currently close to small craft advisory levels, due to the combination of the long period northwest swell and short period wind waves stirred up by the trade winds. A new high pressure system building north of the area Saturday evening and Sunday will bring increasing trade winds that will necessitate the issuance of a small craft advisory for many zones from Saturday night through Sunday night. Latest guidance indicates that advisory leve winds are possible in the windier areas around Maui and the Big Island for much of the upcoming week.

Hawaii Wave Height Model

Hawaii Swell Period Model
Hawaii Swell Height Model

Tide Predictions

Low tide at Kahului was 0.4 foot at 6:22 AM early this morning, rising to a high of 1.2 foot at 12:00 PM just after noon, then dropping to a low of 0.4 foot at 5:28 PM late this afternoon, before once again rising to a of foot at just after midnight

The sunrise was at 06:03 am this morning and will set at 06:46 pm this evening. The Moon is currently 10 days old, and is in a Quarter phase. The next Waxing Gibbous will occur at 5:25 AM on Friday, April 22nd.

Hawaii Wind Report

Maui Weather

Wind: n/a at 0 mph
current observations as of 12pm December 18th, 2018

Weather Outlook for Saturday

Moderate trade winds will deliver a few windward showers today, except on Kauai, where showers will be a little more widespread. High pressure building north of the islands tonight and Sunday will bring strengthening trade winds while also delivering moisture associated with a dissipated front. The increased moisture will reach Kauai and Oahu tonight and Sunday, spreading to Maui county and the Big Island Sunday night and Monday. Most of the rainfall will focus windward, but some showers are expected to spread leeward on the smaller islands. Drier trade wind weather is expected after the moisture moves south of the islands by Tuesday.

In summary, trade winds will prevail through the forecast period. A high building northwest and north of the islands over the next couple of days will shunt moisture associated with a dissipated front over the islands. The two combined are expected to lead to showery and breezy trade winds from later tonight through Tuesday, with a drier trade wind weather pattern anticipated through the remainder of next week.

Currently, surface high pressure centers are located far northeast and northwest of the islands, with a gradually weakening frontal boundary between the two highs located about 300 to 400 miles north of Kauai and Oahu. Associated moisture is relatively shallow, with the boundary currently marked by a 200 mile wide area of broken to overcast low clouds. A fairly quiet day is expected today, with a few passing trade wind showers over windward areas. Windward Kauai may receive a few more showers than elsewhere as the low level flow becomes increasingly weakly convergent as the high pressure cell northwest of the area moves east.

This new high will move into a position north of the islands and push the dissipating frontal boundary over the islands over the next couple of days. Moisture will increase tonight on Kauai, Oahu on Sunday, and over Maui county and the Big Island Sunday night into Tuesday. The high will bring another surge in trade winds, back to breezy levels. Windward sides will be rather showery on Sunday, with the increased low level moisture affecting mainly windward Maui and the Big Island by Sunday night and Monday. While most of the showers will affect windward areas, the trades will be strong enough to carry some showers over to adjacent leeward areas of the smaller islands on Sunday and Monday as well.

Drier air will gradually push back over the chain by the middle of next week, with fewer showers and more sunshine. The breezy trade winds will ease, but should remain moderate.

Central Valley (Kahului, Spreckelsville):

HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING. Breezy. Mostly sunny with isolated showers. Highs around 84. Northeast winds around 10 mph increasing to 15 to 20 mph in the late morning and afternoon. Chance of rain 20 percent.

Leeward West (Lahaina, Ka`anapali):

Partly cloudy. Breezy. Scattered showers in the evening, then isolated showers after midnight. Lows 67 to 73. Northeast winds 15 to 20 mph. Chance of rain 40 percent.

Windward West (Wailuku, Waiehu):

HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING. Partly sunny with scattered showers. Highs 71 to 83. Northeast winds 10 to 15 mph. Chance of rain 50 percent.

Windard Haleakala (Hana, Haiku, Makawao):

HIGH SURF ADVISORY IN EFFECT UNTIL 6 PM HST THIS EVENING. Partly sunny. Showers likely in the morning, then scattered showers in the afternoon. Highs around 81 at the shore to around 67 at 5000 feet. Northeast winds 10 to 15 mph with gusts to 30 mph. Chance of rain 60 percent.

Leeward Haleakala (Kihei, Wailea, Makena):

Partly cloudy. Isolated showers in the evening. Lows around 69 at the shore to 53 to 58 upcountry. East winds up to 10 mph. Chance of rain 20 percent.

Haleakala Summit

Partly cloudy. Isolated showers in the evening, then scattered showers after midnight. Lows around 46 at the visitor center to around 40 at the summit. Light winds becoming northeast 10 to 15 mph in the late evening and overnight. Chance of rain 50 percent.

Photo of the Day

Surf Photo of the Day - April 16th, 2016