Live Weather & Forecast
Weather in Kapaʻa
Hawaii, United States · Real-time conditions & 3-day outlook
22°C
Feels like 25°C
72°F / Feels 76°F
Light rain
Kapaʻa, Hawaii
🌞 Daytime
Updated: 2026-04-13 09:15
Humidity
94%
Wind
15.1 km/h S
Wind Gust
18.8 km/h
Pressure
1017 mb
Visibility
8 km
UV Index
0.7
(Low)
Precipitation
0.03 mm
Cloud Cover
100%
Dew Point
19.4°C
Wind Degree
171°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
136.9 μg/m³
NO₂
1.5 μg/m³
O₃
43 μg/m³
SO₂
1.1 μg/m³
PM 2.5
11.4 μg/m³
PM 10
17.3 μg/m³
Weather Alerts 1
Met
· Severe · Future
Flood Watch issued April 12 at 3:00PM HST until April 13 at 6:00AM HST by NWS Honolulu HI
...FLOOD WATCH IN EFFECT FOR KAUAI OAHU MOLOKAI AND MAUI THROUGH 6 AM HST MONDAY... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Kauai, Oahu, Maui, Molokai, Lanai, Kahoolawe, and Niihau. * WHEN...Through 6 AM HST Monday morning. * IMPACTS...Flood prone roads and other low lying areas may be closed due to elevated runoff and overflowing streams. Urban areas may re...
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Today's Hourly Forecast
24-hour breakdown for Kapaʻa, Hawaii
12 AM
21°
Patchy light drizzle
1 AM
21°
Patchy light drizzle
2 AM
21°
Patchy light drizzle
3 AM
21°
Patchy light rain
4 AM
20°
Patchy light rain
5 AM
20°
Light rain shower
6 AM
21°
Patchy rain nearby
7 AM
21°
Patchy rain nearby
8 AM
21°
Patchy rain nearby
9 AM
22°
Light rain
10 AM
22°
Patchy rain nearby
11 AM
23°
Patchy rain nearby
12 PM
23°
Patchy rain nearby
1 PM
23°
Patchy rain nearby
2 PM
23°
Patchy rain nearby
3 PM
24°
Patchy rain nearby
4 PM
24°
Patchy rain nearby
5 PM
24°
Patchy rain nearby
6 PM
23°
Partly Cloudy
7 PM
23°
Cloudy
8 PM
23°
Patchy rain nearby
9 PM
23°
Patchy rain nearby
10 PM
23°
Cloudy
11 PM
23°
Partly Cloudy
3-Day Forecast
Daily overview for Kapaʻa, Hawaii
Today
Patchy rain nearby
24°
/
20°
🌧️ 99% chance of rain
💧 Avg. humidity: 86%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 4.66 mm
☀️ UV Index: 0.6
🌅 Sunrise: 06:19 AM
🌇 Sunset: 06:57 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Heavy rain
24°
/
21°
🌧️ 87% chance of rain
💧 Avg. humidity: 88%
💨 Max wind: 14.8 km/h
🌧️ Total precip: 20.98 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:18 AM
🌇 Sunset: 06:57 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Moderate rain
24°
/
21°
🌧️ 86% chance of rain
💧 Avg. humidity: 87%
💨 Max wind: 10.4 km/h
🌧️ Total precip: 7.03 mm
☀️ UV Index: 2.3
🌅 Sunrise: 06:17 AM
🌇 Sunset: 06:57 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Kapaʻa
Plan your trip to Kapaʻa, United States around the most favorable weather conditions.
Peak Season
November – April
Dry season — low humidity, clear skies, comfortable temperatures.
Shoulder Season
May, October
Fewer crowds, moderate prices, mild weather.
Off Season
June – September
Wet/monsoon season; heavier rainfall possible.
Frequently Asked Questions
What is the current weather in Kapaʻa?
Current conditions in Kapaʻa: Light rain, temperature 22°C, humidity 94%.
What is the best time to visit Kapaʻa?
The best time to visit Kapaʻa is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in Kapaʻa?
Kapaʻa is located at approximately 22.1° latitude. It has a tropical or subtropical climate with wet and dry seasons.
Does it rain a lot in Kapaʻa?
The wettest period in Kapaʻa is typically during June – September. Wet/monsoon season; heavier rainfall possible.
What should I pack for a trip to Kapaʻa?
For visits to Kapaʻa during November – April: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What country is Kapaʻa in?
Kapaʻa is located in United States, in the state of Hawaii.
What are the public holidays in Kapaʻa in 2026?
View the 2026 public holidays for Kapaʻa on our Holidays page.
What are the GPS coordinates used for the weather forecast in Kapaʻa?
The weather forecast for Kapaʻa uses coordinates 22.0747, -159.3192.