0-2 foot
0-2 foot
1-3 foot
0-3 foot


No significant swells are expected and surf will remain well below advisory levels on all shores. However, a minor south-southeast swell will bring a moderate increase in surf along exposed south facing shores through the weekend. Waves heights will likely reach waist-high at best and most breaks will come in flat.

A high pressure area far northwest of the area will move northeast over the next day or two and become established far north of the islands. Trade winds are expected to remain below the small craft advisory threshold of 25 knots into next week as the pressure gradient across the islands relaxes.

Hawaii Wave Height Model

Hawaii Swell Period Model
Hawaii Swell Height Model


Tide Predictions

High tide at Kahului was 1.3 foot at 1:12 AM late last night, dropping to a low of -0.3 foot at 7:37 AM this morning, then rising to a high of 2.6 foot at 3:00 PM early this afternoon, before once again dropping to a low of 0.8 foot at 9:29 PM late this evening

The sunrise was at 05:50 am this morning and will set at 07:12 pm this evening. The Moon is currently 14 days old, and is in a Full Moon phase. The next Waning Gibbous will occur at 7:27 PM on Sunday, July 16th.

Hawaii Wind Report

Maui Weather

90°/96°
Wind: NE at 24 mph
Sunrise: 6:06 AM
Sunset: 6:50 PM
current observations as of 1pm August 21st, 2017

Weather Outlook for Saturday

High pressure north of the islands will maintain mainly moderate trade winds through Monday with showers favoring the windward slopes, especially during nights and mornings. Slightly weaker trades and an increase in showers and humidity are expected Tuesday with showery conditions continuing into early Wednesday.

A surface ridge of high pressure located far north of the islands will maintain mainly moderate trades through the weekend and into the early part of next week. The general pattern calls for a few showers riding in with the trades, with these showers favoring the windward and mountain areas. The highest frequency of these showers will occur during the nights and mornings.

The latest satellite imagery shows relatively fair skies east of Kauai, while Kauai has been harassed all evening long by a constant stream of broken low clouds and spotty showers, which stretched eastward across the windward coastal waters of Oahu and Molokai. This cloud field continues to close in on Oahu and Molokai this hour, and should it hold together, will reach Oahu and Molokai around sunrise, leading to a few morning showers. The GFS, which appears to have a good handle on this moisture field, does not advance the field any further south, holding it across Oahu and Molokai to until Sunday evening when higher precipitable water values finally spread across Maui and the Big Island from the east, suggesting an uptick in trade showers for these two islands. We anticipate continuing partly cloudy skies across Oahu and Molokai for the rest of today, but anticipating a tad fewer showers in the afternoon hours. Trade showers should gradually increase tonight, especially after midnight. Kauai will remain under passing clouds and showers through out today and tonight.

Strength of the trades will be mainly moderate. There will likely be a slight increase in speed over some of the sensitive areas like valleys and ridges, and east and west ends of islands, during the daylight hours, but it is not expected to be widespread.

The trades may ease off a notch on Tuesday to light to moderate while a batch of humid tropical moisture spreads westward across the island chain. This area of high PW of around 1.80 inches will linger through Tuesday night before lowering to 1.40 inches Wednesday night and Thursday. The leading edge of this area of tropical moisture is currently 800 miles east of the Big Island. As noted in the earlier discussion, low level moisture is expected to max out at 20k feet, enough for locally heavier showers. With the lighter trades, local sea breezes along the leeward coast may result in some spotty afternoon showers as well, such as Kona side of the Big Island, or even the higher slopes and summits.

Moderate trades return on Wednesday, and continue through the second half of the work week, with the return to a more typical trade wind shower pattern.

Central Valley (Kahului, Spreckelsville):

Mostly clear. Isolated showers after midnight. Lows 68 to 73. Northeast winds 10 to 15 mph. Chance of rain 20 percent.

Leeward West (Lahaina, Ka`anapali):

Mostly clear. Breezy. Isolated showers after midnight. Lows 69 to 76. East winds 10 to 20 mph. Chance of rain 20 percent.

Windward West (Wailuku, Waiehu):

Partly cloudy in the evening, then mostly cloudy with isolated showers after midnight. Lows 61 to 73. Northeast winds 10 to 15 mph with gusts to 30 mph. Chance of rain 20 percent.

Windard Haleakala (Hana, Haiku, Makawao):

Partly cloudy in the evening then becoming mostly cloudy. Isolated showers. Lows around 71 at the shore to around 55 at 5000 feet. Southeast winds 10 to 15 mph. Gusts up to 30 mph in the evening. Chance of rain 20 percent.

Leeward Haleakala (Kihei, Wailea, Makena):

Mostly clear. Lows around 71 at the shore to 54 to 60 upcountry. Southeast winds around 10 mph with gusts to 25 mph.

Haleakala Summit

Mostly clear. Scattered showers after midnight. Lows 43 to 51. East winds 10 to 15 mph. Chance of rain 20 percent.

Photo of the Day

Surf Photo of the Day - July 8th, 2017