Kapaa, HI Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Kapaa, HI.

0 Active Alerts for Kapaa

✅
No active weather alerts for Kapaa at this time.
Subscribe to receive instant notifications when alerts are issued.
Alert Analysis for Kapaa, HI →

Current Conditions — Kapaa, HI

LIHUE/KAUAI IS (PHLI)

Cloudy

NULL F
Humidity:%
Wind Speed: mph
Barometer: in
Dewpoint: F
Visibility:9.00 mi
Precip:Trace
Heat Index:NA
Wind Chill:NA
May 12 2026, 07:53 AM HST
Alert Subscriptions
Severe Weather Alerts
Severe Weather
Daily Weather Forecast
Daily Forecast
Observation Alert Monitoring
Observations
Storm Report Monitoring
Storm Reports

5-Day Forecast — Kapaa, HI

Tuesday

High 82 °F
Forecast Missing
Tuesday
Night
Low 71 °F
Forecast Missing
Wednesday

High 84 °F
Forecast Missing
Wednesday
Night
Low 71 °F
Forecast Missing
Thursday

High 82 °F
Forecast Missing
Thursday
Night
Low 71 °F
Forecast Missing
Friday

High 84 °F
Forecast Missing
Friday
Night
Low 71 °F
Forecast Missing
Saturday

High 84 °F
Forecast Missing

Detailed Forecast — Kapaa, HI

Tuesday
Forecast Missing. High near 82°F. Wind 13 to 14 mph, with gusts as high as 18 mph.
Tuesday Night
Forecast Missing. Low around 71°F. Wind 13 to 14 mph, with gusts as high as 18 mph.
Wednesday
Forecast Missing. High near 84°F. Wind 14 to 15 mph, with gusts as high as 21 mph.
Wednesday Night
Forecast Missing. Low around 71°F. Wind 13 to 15 mph, with gusts as high as 21 mph.
Thursday
Forecast Missing. High near 82°F. Wind around 14 mph, with gusts as high as 18 mph.
Thursday Night
Forecast Missing. Low around 71°F. Wind 14 to 15 mph.
Friday
Forecast Missing. High near 84°F. Wind around 15 mph.
Friday Night
Forecast Missing. Low around 71°F. Wind 12 to 13 mph.
Saturday
Forecast Missing. High near 84°F. Wind 13 to 15 mph.
Saturday Night
Forecast Missing. Low around 71°F. Wind 12 to 13 mph.
Sunday
Forecast Missing. High near 86°F. Wind around 12 mph.
Sunday Night
Forecast Missing. Low around 73°F. Wind around 13 mph.
Monday
Forecast Missing. High near 86°F. Wind 13 to 14 mph.
HI Radar
Current Radar • HI
Day 1 Outlook • May 12, 2026

Observation History — Kapaa, HI

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
07:53 AM HST 9.00 Cloudy Trace NULL % NA NA M
07:12 AM HST 10.00 Partly Cloudy Trace NULL % NA NA M
06:53 AM HST 9.00 Light Rain Trace NULL % NA NA M
06:14 AM HST 8.00 Light Rain Trace NULL % NA NA M
05:53 AM HST 9.00 Mostly Cloudy 00.01 NULL % NA NA M
05:35 AM HST 10.00 Mostly Cloudy -- NULL % NA NA M
05:01 AM HST 8.00 Mostly Cloudy -- NULL % NA NA M
04:53 AM HST 13.9 9.00 Mostly Cloudy Trace 72.0 69.1 91% NA 73.0 30.02 1016.6
04:41 AM HST 10.00 Light Rain Trace NULL % NA NA M
04:10 AM HST 9.00 Mostly Cloudy -- NULL % NA NA M
03:53 AM HST 10.00 Mostly Cloudy 00.02 NULL % NA NA M
03:10 AM HST 10.00 Cloudy 00.01 NULL % NA NA M
02:53 AM HST 10.3 4.00 Light Rain and Fog/Mist 00.01 71.1 66.9 87% NA 72.0 30.02 1016.6
02:16 AM HST 10.00 Cloudy 00.01 NULL % NA NA M
01:53 AM HST 10.00 Cloudy Trace NULL % NA NA M
12:53 AM HST 10.3 10.00 Cloudy Trace 70.0 66.9 90% NA NA 30.06 1018.0
11:53 PM HST NE 17.2 8.00 Light Rain 00.02 71.1 68.0 90% NA 72.1 30.08 1018.6
11:29 PM HST 10.00 Light Rain 00.02 NULL % NA NA M
11:13 PM HST G 31.1 10.00 Light Rain Trace NULL % NA NA M
10:53 PM HST G 28.9 7.00 Light Rain Trace NULL % NA NA M
09:53 PM HST NE 20.8 10.00 Light Rain Trace 73.9 68.0 82% NA 74.8 30.09 1019.0
08:53 PM HST 10.00 Mostly Cloudy -- NULL % NA NA M
07:53 PM HST NE 24.2 10.00 Mostly Clear and Windy Trace 73.0 68.0 84% NA 73.9 30.06 1018.0
06:53 PM HST NE 20.8 10.00 Mostly Cloudy and Windy -- 73.9 68.0 82% NA 74.8 30.05 1017.6

Regional Weather Observation

LIHUE/KAUAI IS (PHLI)

Cloudy
NULL F

BARKING SANDS/KA (PHBK)

Clear
75.9 F

KALAELOA (PHJR)

Mostly Cloudy
77.0 F

WHEELER AFB/OAHU (PHHI)

Mostly Cloudy
NULL F

HONOLULU (PHNL)

Partly Cloudy
79.0 F

KANEOHE MCAS (PHNG)

Partly Cloudy
NULL F
🔔    Sign-up to receive daily weather forecasts by email or text - subscribe
Lightning strike alerts for Kapaa, HI