Local weather forecast

Weather in Kapaa, HI

Updated 2026-09-26 02:45 local time · ZIP codes 96746

Light rain shower
Now78°F

Light rain shower

High / Low79° / 77°
Rain chance80%
Wind22 mph
Weather alerts

Active alerts

4
Small Craft Advisory issued September 25 at 9:32AM HST until September 26 at 6:00PM HST by NWS Honolulu HI

* WHAT...For the Small Craft Advisory, east winds 20 to 30 kt with gusts up to 35 kt and seas 8 to 13 feet. For the Gale Watch, east winds 25 to 35 kt with gusts up to 45 kt and seas 11 to 15 feet possible. * WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Kauai Channel, Oahu Windward Waters and Oahu Leeward Waters. * WHEN...For the Small Craft Advisory, until 6 PM HST Saturday. For the Gale Watch, from Saturday evening through Sunday afternoon. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility.

Safety instructions

A Gale Watch is issued when the risk of gale force winds of 34 to 47 knots has significantly increased but the specific timing and/or location is still uncertain. It is intended to provide additional lead time for mariners who may wish to consider altering their plans.

Gale Watch issued September 25 at 9:32AM HST until September 27 at 6:00PM HST by NWS Honolulu HI

* WHAT...For the Small Craft Advisory, east winds 20 to 30 kt with gusts up to 35 kt and seas 8 to 13 feet. For the Gale Watch, east winds 25 to 35 kt with gusts up to 45 kt and seas 11 to 15 feet possible. * WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Kauai Channel, Oahu Windward Waters and Oahu Leeward Waters. * WHEN...For the Small Craft Advisory, until 6 PM HST Saturday. For the Gale Watch, from Saturday evening through Sunday afternoon. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility.

Safety instructions

A Gale Watch is issued when the risk of gale force winds of 34 to 47 knots has significantly increased but the specific timing and/or location is still uncertain. It is intended to provide additional lead time for mariners who may wish to consider altering their plans.

Small Craft Advisory issued September 25 at 2:17PM HST until September 26 at 6:00PM HST by NWS Honolulu HI

* WHAT...For the Small Craft Advisory, east winds 20 to 30 kt with gusts up to 35 kt and seas 8 to 13 feet. For the Gale Watch, east winds 25 to 35 kt with gusts up to 45 kt and seas 11 to 15 feet possible. * WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Kauai Channel, Oahu Windward Waters and Oahu Leeward Waters. * WHEN...For the Small Craft Advisory, until 6 PM HST Saturday. For the Gale Watch, from Saturday evening through Sunday afternoon. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility.

Safety instructions

A Gale Watch is issued when the risk of gale force winds of 34 to 47 knots has significantly increased but the specific timing and/or location is still uncertain. It is intended to provide additional lead time for mariners who may wish to consider altering their plans.

Gale Watch issued September 25 at 2:17PM HST until September 27 at 6:00PM HST by NWS Honolulu HI

* WHAT...For the Small Craft Advisory, east winds 20 to 30 kt with gusts up to 35 kt and seas 8 to 13 feet. For the Gale Watch, east winds 25 to 35 kt with gusts up to 45 kt and seas 11 to 15 feet possible. * WHERE...Kauai Northwest Waters, Kauai Windward Waters, Kauai Leeward Waters, Kauai Channel, Oahu Windward Waters and Oahu Leeward Waters. * WHEN...For the Small Craft Advisory, until 6 PM HST Saturday. For the Gale Watch, from Saturday evening through Sunday afternoon. * IMPACTS...Strong winds can cause hazardous seas which could capsize or damage vessels and reduce visibility.

Safety instructions

A Gale Watch is issued when the risk of gale force winds of 34 to 47 knots has significantly increased but the specific timing and/or location is still uncertain. It is intended to provide additional lead time for mariners who may wish to consider altering their plans.

Hourly

Next hours

NowLight rain shower78°40% rain
4 AMLight rain shower77°43% rain
5 AMLight rain shower78°45% rain
6 AMLight rain shower78°40% rain
7 AMLight rain shower78°41% rain
8 AMPatchy rain nearby78°23% rain
9 AMPatchy rain nearby78°29% rain
10 AMPatchy rain nearby78°30% rain
11 AMOvercast78°22% rain
12 PMPartly Cloudy79°13% rain
1 PMLight rain shower78°32% rain
2 PMLight rain shower78°45% rain
Forecast

3-day weather forecast

Today2026-09-26
Light rain shower
79° 77°Light rain shower
Rain 80%Gust 26 mph
Tomorrow2026-09-27
Patchy rain nearby
78° 77°Patchy rain nearby
Rain 66%Gust 25 mph
Monday2026-09-28
Light rain shower
78° 78°Light rain shower
Rain 84%Gust 22 mph
Conditions

Weather details

Feels like76°F
Humidity81%
Pressure29.94 inHg
Visibility6 mi
Wind22 mph ENE
Wind gusts27 mph
Precipitation0.01 in
UV index0
Daylight

Sunrise, sunset and moon

Sunrise06:27 AM
Sunset06:30 PM
Moonrise06:35 PM
Moon phaseFull Moon
Next 24 hours

Key weather changes ahead

Warmest hour12 PM · 79°F
Coolest hour1 AM · 77°F
Highest rain chance3 PM · 47%
Strongest gusts10 PM · 33 mph
Practical guide

Weather insights for today

Take an umbrella

Rain chance reaches about 45% over the next 12 hours.

Light layers should work

It feels like 76°F with winds near 22 mph.

Best window: 12 PM

79°F, 13% rain chance and 20 mph wind.

Allow a little extra driving time

Visibility is around 6 mi; gusts may reach 29 mph.

Run with a few weather adjustments

Current temperature is 78°F, wind 22 mph, rain chance up to 45%.

Low UV protection needs

UV index is 0.

Local weather characteristics in Kapaa

Hawaii has a tropical marine climate, but local weather varies sharply with elevation, windward versus leeward exposure and island terrain.

Kapaa is part of the West weather region. The forecast point is near 22.08°N latitude and 159.32°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.

Kapaa weather today

Light rain shower and 78°F in Kapaa, HI. Today's high is 79°F with a 80% rain chance. Winds are around 22 mph with gusts near 27 mph. Relative humidity is 81%, pressure is 29.94 inHg, and visibility is about 6 miles.

Tonight and tomorrow in Kapaa

Sunrise is at 06:27 AM and sunset is at 06:30 PM. Tomorrow's forecast calls for Patchy rain nearby with a high near 78°F and a low near 77°F. The maximum rain chance is 66%.

Nearby

Weather near Kapaa

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