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WeatherLive › Hawaii › Waikapū

Waikapū, HI Weather

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherWaikapū · 4:47 PM HST
26° | 25°
25°C
Feels like 24°
Sunny
WindE 21 mph · Gusts 25 mph
Precip59% · 0.07 in
Humidity74% · Dew point 20°
UV index12 Extreme
Air Quality29 Good
Pressure29.91 inHg
Visibility6 mi
Sunrise / Sunset6:10 AM · 6:41 PM · 12h 31m

Weather map — Waikapū

Full radar →
Now
25°
7%
21 mph
17:00
25°
7%
20 mph
18:00
25°
8%
20 mph
19:00
25°
8%
19 mph
20:00
25°
8%
18 mph
21:00
25°
9%
19 mph
22:00
25°
8%
19 mph
23:00
25°
9%
19 mph
00:00
25°
9%
19 mph
01:00
24°
8%
18 mph
02:00
24°
8%
18 mph
03:00
24°
8%
18 mph
04:00
24°
17%
18 mph
05:00
24°
18%
18 mph
06:00
24°
18%
18 mph
07:00
24°
22%
18 mph
08:00
25°
18%
19 mph
09:00
25°
19%
21 mph
10:00
25°
22%
20 mph
11:00
25°
23%
21 mph
12:00
25°
23%
21 mph
13:00
25°
20%
21 mph
14:00
25°
19%
22 mph
15:00
25°
19%
21 mph

Today · Wed 9/2

High 26°
59% / 0.07 in

Showers. Winds E at 23 mph.

Tonight · Wed 9/2

Low 24°
9% / –

Sunny. Winds E at 19 mph.

Tomorrow · Thu 9/3

25° | 24°
42% / 0.02 in

Showers. Winds E at 22 mph.

7-day trend

Waikapū · temperature + precipitation

10-day forecast

Updated 4:47 PM

Details & indices

Wind
21 mph E
Gusts 25 mph
Humidity
74%
Dew point 20°
Pressure
29.91 inHg
Rising
UV index
12 — Extreme
High today
Air Quality
Good
AQI 29 · US EPA
Allergy
None detected
—
Visibility
6 mi
Clear view
Allergy — Waikapū

🌿 Conditions right now

View all →
Birch
None
Grass
None
Oak
None
Alder
None
Hazel
None
Mugwort
None
Ragweed
None

Sun & moon

Sunrise6:10 AM
Sunset6:41 PM
Length of day12h 31m
Moonrise10:34 PM
Moonset11:25 AM
Moon phase🌗 Last Quarter · 64%
Next full moonSep 26 Harvest Moon
Latitude20.8581°N
Longitude-156.5069°E

Water temps nearby

View all →
Wailea Beach, Maui (12 mi)82°
Kaanapali Beach, Maui (13 mi)81°
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Poor
Line-drying weather
Grilling
Poor
Fire up the grill
Running
Poor
Lace up outside
Patio
Poor
Dinner outdoors
Nearby places in {{REGION}}
Honolulu
Sunny
26°
Data sources · Wednesday, September 2
Where the Waikapū forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 20.8581°N, -156.5069°.
NBM + global weather models
Updated: 4:47 PM
Weather in Waikapū
Waikapū's outlook: warmest day near 29° (Tuesday), coldest night about 24° (Friday). About 0.83 in of precipitation is expected in total; the most likely wet day is Monday (86% chance). Expect a blustery spell — gusts near 30 mph on Wednesday. Heads up: a Small Craft Advisory is in effect — check the alerts tab before making plans. Right now Waikapū is running about 53° warmer than Hilo. Longer view: trade-wind climate — warm and steady year-round.
Waikapū, HI · Elev 482 ft · 20.86°N, 156.51°W · Hawaii · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 4:47 PM