Live Weather & Forecast

Weather in Kahului

Hawaii, United States · Real-time conditions & 3-day outlook

Flag of United States
Overcast
25°C
Feels like 28°C
77°F / Feels 82°F
Overcast
Kahului, Hawaii
🌞 Daytime
Updated: 2026-04-12 12:15
💧
Humidity
83%
💨
Wind
12.6 km/h NW
🌬️
Wind Gust
24.9 km/h
🌡️
Pressure
1016 mb
👁️
Visibility
16 km
☀️
UV Index
6.4 (High)
🌧️
Precipitation
1.73 mm
☁️
Cloud Cover
100%
💦
Dew Point
21.3°C
🌐
Wind Degree
323°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
141.9 μg/m³
NO₂
2.4 μg/m³
O₃
41 μg/m³
SO₂
1.2 μg/m³
PM 2.5
6.2 μg/m³
PM 10
8.6 μg/m³

Weather Alerts 2

Met · Severe · Future
Flood Watch issued April 11 at 1:43PM HST until April 13 at 6:00PM HST by NWS Honolulu HI

...FLOOD WATCH IN EFFECT FOR ALL HAWAIIAN ISLANDS THROUGH 6 PM HST MONDAY... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...The state of Hawaii. * WHEN...Through Monday afternoon. * IMPACTS...Significant flooding may occur due to excessive rainfall and overflow of streams and drainages. Roads in several areas may be closed, along with property damage in urban or lo...

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Effective: 2026-04-11T13:43:00-10:00  ·  Expires: 2026-04-12T18:15:00-10:00
Met · Severe · Future
Flood Watch issued April 12 at 3:14AM HST until April 13 at 6:00PM HST by NWS Honolulu HI

...FLOOD WATCH IN EFFECT FOR ALL HAWAIIAN ISLANDS THROUGH 6 PM HST MONDAY... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...The island of Kauai in Kauai County, The island of Niihau in Kauai County, Oahu, Maui, Molokai, Lanai, Kahoolawe, and the Big Island. * WHEN...Through Monday afternoon. * IMPACTS...Significant flooding may occur due to excessive rainfall and o...

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Effective: 2026-04-12T03:14:00-10:00  ·  Expires: 2026-04-12T18:15:00-10:00

Today's Hourly Forecast

24-hour breakdown for Kahului, Hawaii

12 AM
Light rain shower
24°
Light rain shower
💧 86% 💨 4.7 km/h 🌧️ 100%
1 AM
Patchy rain nearby
24°
Patchy rain nearby
💧 87% 💨 5.4 km/h 🌧️ 100%
2 AM
Patchy rain nearby
23°
Patchy rain nearby
💧 88% 💨 4 km/h 🌧️ 70%
3 AM
Patchy rain nearby
23°
Patchy rain nearby
💧 88% 💨 4.7 km/h 🌧️ 84%
4 AM
Partly Cloudy
23°
Partly Cloudy
💧 87% 💨 4.7 km/h
5 AM
Patchy rain nearby
23°
Patchy rain nearby
💧 89% 💨 5 km/h 🌧️ 100%
6 AM
Light rain shower
23°
Light rain shower
💧 89% 💨 3.2 km/h 🌧️ 100%
7 AM
Light rain shower
23°
Light rain shower
💧 88% 💨 3.2 km/h 🌧️ 100%
8 AM
Light rain shower
23°
Light rain shower
💧 87% 💨 2.2 km/h 🌧️ 100%
9 AM
Moderate or heavy rain shower
23°
Moderate or heavy rain shower
💧 87% 💨 5.4 km/h 🌧️ 100%
10 AM
Light rain shower
24°
Light rain shower
💧 86% 💨 8.3 km/h 🌧️ 100%
11 AM
Light rain shower
23°
Light rain shower
💧 88% 💨 11.2 km/h 🌧️ 100%
12 PM
Overcast
25°
Overcast
💧 83% 💨 12.6 km/h 🌧️ 100%
1 PM
Light rain shower
23°
Light rain shower
💧 91% 💨 15.8 km/h 🌧️ 100%
2 PM
Light rain shower
22°
Light rain shower
💧 91% 💨 15.8 km/h 🌧️ 100%
3 PM
Light rain shower
22°
Light rain shower
💧 90% 💨 15.1 km/h 🌧️ 100%
4 PM
Light drizzle
22°
Light drizzle
💧 91% 💨 16.2 km/h 🌧️ 100%
5 PM
Patchy rain nearby
22°
Patchy rain nearby
💧 90% 💨 18 km/h 🌧️ 100%
6 PM
Patchy rain nearby
22°
Patchy rain nearby
💧 90% 💨 18 km/h 🌧️ 100%
7 PM
Light rain shower
22°
Light rain shower
💧 92% 💨 19.1 km/h 🌧️ 100%
8 PM
Light rain shower
22°
Light rain shower
💧 92% 💨 19.4 km/h 🌧️ 100%
9 PM
Light rain shower
22°
Light rain shower
💧 92% 💨 19.8 km/h 🌧️ 100%
10 PM
Patchy rain nearby
22°
Patchy rain nearby
💧 92% 💨 18.4 km/h 🌧️ 100%
11 PM
Patchy rain nearby
21°
Patchy rain nearby
💧 93% 💨 17.6 km/h 🌧️ 100%

3-Day Forecast

Daily overview for Kahului, Hawaii

Today
Moderate rain
Moderate rain
24° / 21°
🌧️ 97% chance of rain
💧 Avg. humidity: 89%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 12.68 mm
☀️ UV Index: 1.6
🌅 Sunrise: 06:09 AM
🌇 Sunset: 06:44 PM
🌙 Waning Crescent
🌑 Moon: 33% lit
Mon, Apr 13
Patchy rain nearby
Patchy rain nearby
25° / 21°
🌧️ 88% chance of rain
💧 Avg. humidity: 82%
💨 Max wind: 19.4 km/h
🌧️ Total precip: 0.61 mm
☀️ UV Index: 2.7
🌅 Sunrise: 06:09 AM
🌇 Sunset: 06:44 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Patchy rain nearby
Patchy rain nearby
25° / 23°
🌧️ 87% chance of rain
💧 Avg. humidity: 82%
💨 Max wind: 10.4 km/h
🌧️ Total precip: 0.95 mm
☀️ UV Index: 2.6
🌅 Sunrise: 06:08 AM
🌇 Sunset: 06:45 PM
🌙 Waning Crescent
🌑 Moon: 15% lit

Best Time to Visit Kahului

Plan your trip to Kahului, 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.
← Back to Kahului 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Kahului?
Current conditions in Kahului: Overcast, temperature 25°C, humidity 83%.
What is the best time to visit Kahului?
The best time to visit Kahului is typically November – April. Dry season — low humidity, clear skies, comfortable temperatures.
What is the climate like in Kahului?
Kahului is located at approximately 20.9° latitude. It has a tropical or subtropical climate with wet and dry seasons.
Does it rain a lot in Kahului?
The wettest period in Kahului is typically during June – September. Wet/monsoon season; heavier rainfall possible.
What should I pack for a trip to Kahului?
For visits to Kahului during November – April: light clothing and sun protection. For June – September: layers and a waterproof jacket are recommended.
What country is Kahului in?
Kahului is located in United States, in the state of Hawaii.
What are the public holidays in Kahului in 2026?
View the 2026 public holidays for Kahului on our Holidays page.
What are the GPS coordinates used for the weather forecast in Kahului?
The weather forecast for Kahului uses coordinates 20.8894, -156.4727.