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Current weather in Waikapu is few clouds.

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Weather data for Waikapu is updated regularly with the latest available observations and forecasts.

Now · 1:23 PM

Waikapu Weather & Hourly Forecast

United States · Hawaii · 96793

76°F

Mostly sunny

Feels like: 76°F

💧 Humidity 68% 🌡 Pressure 29.88 inHg 💨 Wind 12 mph 👁 Visibility 6.2 mi ☁ Clouds 14% ☀️ UV index 11.8 · Extreme 🌅 Sunrise 6:10 AM 🌇 Sunset 6:39 PM

Hourly Forecast for Waikapu

Today

2:00 PM

Mostly sunny

75° 💧 None 💨 13 mph H 66%29.88 inHg

5:00 PM

Partly cloudy

74° 💧 None 💨 13 mph H 66%29.83 inHg

8:00 PM

Partly cloudy night

72° 💧 None 💨 13 mph H 72%29.85 inHg

11:00 PM

Mostly clear night

71° 💧 None 💨 10 mph H 74%29.88 inHg

Tomorrow

2:00 AM

Clear night

70° 💧 None 💨 8 mph H 74%29.85 inHg

5:00 AM

Mostly clear night

70° 💧 None 💨 9 mph H 77%29.83 inHg

8:00 AM

Mostly sunny

73° 💧 None 💨 10 mph H 68%29.85 inHg

11:00 AM

Sunny

76° 💧 None 💨 4 mph H 64%29.85 inHg

2:00 PM

Mostly sunny

75° 💧 None 💨 6 mph H 70%29.80 inHg

5:00 PM

Mostly cloudy

74° 💧 0.01 in 💨 7 mph H 74%29.80 inHg

8:00 PM

Light rain

73° 💧 0.01 in 💨 7 mph H 78%29.83 inHg

11:00 PM

Partly cloudy night

72° 💧 None 💨 8 mph H 79%29.85 inHg

Sunday

2:00 AM

Mostly cloudy night

72° 💧 None 💨 8 mph H 79%29.83 inHg

5:00 AM

Overcast night

71° 💧 None 💨 8 mph H 82%29.80 inHg

8:00 AM

Overcast

73° 💧 None 💨 9 mph H 74%29.83 inHg

11:00 AM

Overcast

76° 💧 0.01 in 💨 6 mph H 69%29.83 inHg

Today

2:00 PM

Mostly sunny

75° 💧 None 💨 13 mph H 66%29.88 inHg

3:00 PM

Partly cloudy

75° 💧 None 💨 13 mph H 65%29.85 inHg

4:00 PM

Partly cloudy

75° 💧 None 💨 14 mph H 64%29.83 inHg

5:00 PM

Partly cloudy

74° 💧 None 💨 13 mph H 66%29.83 inHg

6:00 PM

Partly cloudy

73° 💧 None 💨 13 mph H 67%29.85 inHg

7:00 PM

Partly cloudy night

72° 💧 None 💨 14 mph H 71%29.85 inHg

8:00 PM

Partly cloudy night

72° 💧 None 💨 13 mph H 72%29.85 inHg

9:00 PM

Mostly clear night

72° 💧 None 💨 12 mph H 73%29.88 inHg

10:00 PM

Mostly clear night

72° 💧 None 💨 11 mph H 73%29.88 inHg

11:00 PM

Mostly clear night

71° 💧 None 💨 10 mph H 74%29.88 inHg

Tomorrow

12:00 AM

Mostly clear night

71° 💧 None 💨 9 mph H 74%29.88 inHg

1:00 AM

Mostly clear night

70° 💧 None 💨 8 mph H 74%29.85 inHg

2:00 AM

Clear night

70° 💧 None 💨 8 mph H 74%29.85 inHg

3:00 AM

Clear night

70° 💧 None 💨 7 mph H 75%29.83 inHg

4:00 AM

Clear night

70° 💧 None 💨 8 mph H 76%29.83 inHg

5:00 AM

Mostly clear night

70° 💧 None 💨 9 mph H 77%29.83 inHg

6:00 AM

Mostly clear night

70° 💧 None 💨 9 mph H 78%29.83 inHg

7:00 AM

Mostly sunny

70° 💧 None 💨 10 mph H 75%29.85 inHg

8:00 AM

Mostly sunny

73° 💧 None 💨 10 mph H 68%29.85 inHg

9:00 AM

Sunny

74° 💧 None 💨 7 mph H 66%29.85 inHg

10:00 AM

Sunny

75° 💧 None 💨 6 mph H 64%29.85 inHg

11:00 AM

Sunny

76° 💧 None 💨 4 mph H 64%29.85 inHg

12:00 PM

Sunny

76° 💧 None 💨 3 mph H 66%29.83 inHg

1:00 PM

Sunny

76° 💧 None 💨 4 mph H 68%29.83 inHg

2:00 PM

Mostly sunny

75° 💧 None 💨 6 mph H 70%29.80 inHg

3:00 PM

Mostly cloudy

75° 💧 None 💨 8 mph H 73%29.80 inHg

4:00 PM

Mostly cloudy

74° 💧 None 💨 8 mph H 74%29.80 inHg

5:00 PM

Mostly cloudy

74° 💧 None 💨 7 mph H 74%29.80 inHg

6:00 PM

Light rain

74° 💧 0.01 in 💨 6 mph H 75%29.80 inHg

7:00 PM

Light rain

73° 💧 0.01 in 💨 6 mph H 77%29.83 inHg

8:00 PM

Light rain

73° 💧 0.01 in 💨 7 mph H 78%29.83 inHg

9:00 PM

Partly cloudy night

73° 💧 None 💨 7 mph H 78%29.85 inHg

10:00 PM

Partly cloudy night

72° 💧 None 💨 7 mph H 79%29.85 inHg

11:00 PM

Partly cloudy night

72° 💧 None 💨 8 mph H 79%29.85 inHg

Sunday

12:00 AM

Mostly cloudy night

72° 💧 None 💨 8 mph H 79%29.83 inHg

1:00 AM

Mostly cloudy night

72° 💧 None 💨 8 mph H 80%29.83 inHg

2:00 AM

Mostly cloudy night

72° 💧 None 💨 8 mph H 79%29.83 inHg

3:00 AM

Overcast night

72° 💧 None 💨 8 mph H 80%29.80 inHg

4:00 AM

Overcast night

72° 💧 None 💨 8 mph H 80%29.80 inHg

5:00 AM

Overcast night

71° 💧 None 💨 8 mph H 82%29.80 inHg

6:00 AM

Overcast night

71° 💧 None 💨 8 mph H 82%29.83 inHg

7:00 AM

Overcast

72° 💧 None 💨 8 mph H 79%29.83 inHg

8:00 AM

Overcast

73° 💧 None 💨 9 mph H 74%29.83 inHg

9:00 AM

Overcast

75° 💧 None 💨 8 mph H 70%29.83 inHg

10:00 AM

Overcast

76° 💧 None 💨 6 mph H 69%29.83 inHg

11:00 AM

Overcast

76° 💧 None 💨 6 mph H 69%29.83 inHg

12:00 PM

Overcast

76° 💧 None 💨 6 mph H 69%29.83 inHg

1:00 PM

Light rain

76° 💧 0.01 in 💨 7 mph H 70%29.80 inHg

2:00 PM

Light rain

76° 💧 0.01 in 💨 8 mph H 72%29.80 inHg

3:00 PM

Light rain

75° 💧 0.01 in 💨 8 mph H 74%29.77 inHg

4:00 PM

Light rain

75° 💧 0.01 in 💨 9 mph H 75%29.77 inHg

5:00 PM

Light rain

74° 💧 0.01 in 💨 8 mph H 77%29.77 inHg

6:00 PM

Light rain

74° 💧 0.01 in 💨 6 mph H 77%29.80 inHg

7:00 PM

Light rain

73° 💧 0.03 in 💨 6 mph H 79%29.83 inHg

8:00 PM

Light rain

73° 💧 0.02 in 💨 5 mph H 80%29.83 inHg

9:00 PM

Light rain

73° 💧 0.02 in 💨 5 mph H 81%29.85 inHg

10:00 PM

Overcast night

73° 💧 None 💨 6 mph H 80%29.85 inHg

11:00 PM

Light rain

73° 💧 0.01 in 💨 6 mph H 80%29.85 inHg

Monday

12:00 AM

Light rain

73° 💧 0.00 in 💨 4 mph H 81%29.83 inHg

1:00 AM

Light rain

72° 💧 0.02 in 💨 5 mph H 83%29.83 inHg

2:00 AM

Light rain

72° 💧 0.01 in 💨 6 mph H 83%29.80 inHg

3:00 AM

Overcast night

72° 💧 None 💨 7 mph H 82%29.77 inHg

4:00 AM

Overcast night

73° 💧 None 💨 5 mph H 82%29.77 inHg

5:00 AM

Overcast night

73° 💧 None 💨 6 mph H 82%29.77 inHg

6:00 AM

Overcast night

73° 💧 None 💨 6 mph H 82%29.80 inHg

7:00 AM

Overcast

73° 💧 None 💨 6 mph H 82%29.80 inHg

8:00 AM

Overcast

74° 💧 None 💨 7 mph H 79%29.80 inHg

9:00 AM

Overcast

74° 💧 None 💨 5 mph H 79%29.83 inHg

10:00 AM

Overcast

76° 💧 None 💨 5 mph H 74%29.83 inHg

11:00 AM

Overcast

77° 💧 None 💨 5 mph H 71%29.80 inHg

12:00 PM

Overcast

77° 💧 None 💨 6 mph H 70%29.80 inHg

1:00 PM

Light rain

77° 💧 0.00 in 💨 7 mph H 71%29.77 inHg

2:00 PM

Light rain

77° 💧 0.00 in 💨 8 mph H 71%29.77 inHg

3:00 PM

Overcast

77° 💧 None 💨 8 mph H 70%29.77 inHg

4:00 PM

Overcast

77° 💧 None 💨 7 mph H 70%29.77 inHg

5:00 PM

Overcast

77° 💧 None 💨 6 mph H 72%29.77 inHg

6:00 PM

Mostly cloudy

76° 💧 None 💨 5 mph H 75%29.80 inHg

7:00 PM

Mostly cloudy night

75° 💧 None 💨 6 mph H 77%29.80 inHg

8:00 PM

Mostly cloudy night

75° 💧 None 💨 7 mph H 78%29.83 inHg

9:00 PM

Mostly cloudy night

75° 💧 None 💨 6 mph H 78%29.83 inHg

10:00 PM

Mostly cloudy night

76° 💧 None 💨 6 mph H 78%29.85 inHg

11:00 PM

Mostly cloudy night

76° 💧 None 💨 6 mph H 77%29.85 inHg

Tuesday

12:00 AM

Mostly cloudy night

76° 💧 None 💨 8 mph H 77%29.83 inHg

1:00 AM

Mostly cloudy night

75° 💧 None 💨 10 mph H 77%29.83 inHg

2:00 AM

Mostly cloudy night

74° 💧 None 💨 10 mph H 79%29.83 inHg

3:00 AM

Mostly clear night

74° 💧 None 💨 10 mph H 81%29.83 inHg

4:00 AM

Mostly clear night

74° 💧 None 💨 10 mph H 83%29.83 inHg

5:00 AM

Mostly clear night

74° 💧 None 💨 10 mph H 84%29.83 inHg

6:00 AM

Mostly clear night

74° 💧 None 💨 10 mph H 85%29.85 inHg

7:00 AM

Partly cloudy

74° 💧 None 💨 10 mph H 84%29.85 inHg

8:00 AM

Partly cloudy

75° 💧 None 💨 11 mph H 80%29.88 inHg

9:00 AM

Mostly sunny

76° 💧 None 💨 11 mph H 76%29.88 inHg

10:00 AM

Mostly sunny

77° 💧 None 💨 11 mph H 74%29.88 inHg

11:00 AM

Mostly sunny

77° 💧 None 💨 10 mph H 73%29.88 inHg

12:00 PM

Mostly sunny

77° 💧 None 💨 8 mph H 74%29.88 inHg

In Waikapu and, more broadly, across the state of Hawaii: The afternoon will feature clear skies with mild to warm temperatures ranging from 79 to 83 degrees Fahrenheit. Winds will be moderate, coming from the northeast at speeds up to 15 mph, with gusts reaching 17 mph. No significant rainfall is anticipated for the rest of the day, providing stable weather conditions. Overall, it should be a pleasant afternoon with comfortable temperatures and gentle breezes.

15-Day Weather Outlook for Waikapu

TomorrowTomorrow

Light rain 76°/70° 💧 0.02 in 💨 10 mph

Sunday, Sep 6Sun Sep 6

Light rain 76°/71° 💧 0.15 in 💨 9 mph

Monday, Sep 7Mon Sep 7

Light rain 77°/72° 💧 0.06 in 💨 8 mph

Tuesday, Sep 8Tue Sep 8

Light rain 77°/74° 💧 0.01 in 💨 11 mph

Wednesday, Sep 9Wed Sep 9

Light rain 78°/72° 💧 0.05 in 💨 11 mph

Thursday, Sep 10Thu Sep 10

Light rain 75°/70° 💧 0.02 in 💨 13 mph

Friday, Sep 11Fri Sep 11

Light rain 76°/70° 💧 0.04 in 💨 11 mph

Saturday, Sep 12Sat Sep 12

Light rain 77°/71° 💧 0.03 in 💨 12 mph

Sunday, Sep 13Sun Sep 13

Light rain 77°/72° 💧 0.02 in 💨 11 mph

Monday, Sep 14Mon Sep 14

Light rain 77°/72° 💧 0.05 in 💨 9 mph

Tuesday, Sep 15Tue Sep 15

Light rain 77°/71° 💧 0.05 in 💨 12 mph

Wednesday, Sep 16Wed Sep 16

Light rain 76°/71° 💧 0.06 in 💨 12 mph

Thursday, Sep 17Thu Sep 17

Light rain 77°/70° 💧 0.02 in 💨 10 mph

Friday, Sep 18Fri Sep 18

Light rain 77°/72° 💧 0.07 in 💨 8 mph

Saturday, Sep 19Sat Sep 19

Light rain 76°/73° 💧 0.30 in 💨 10 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Waikapu

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Waikapu

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 2:00 PM

PM2.5 Fine particles Good 5,0µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 12,4µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 47,7µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,1µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Waikapu

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 11,8Extreme 😊Good

Tomorrow UV 12,2Extreme 🙂Fair

Sunday UV 9,9Very high 🙂Fair

Monday UV 11,9Extreme 😊Good

Tuesday UV 12,3Extreme 😊Good

Wednesday UV 7,0High —Unavailable

Thursday UV 6,0High —Unavailable

Hourly UV index today

2:00 PMUV 8,8 3:00 PMUV 6,1 4:00 PMUV 3,5 5:00 PMUV 1,2 6:00 PMUV 0,2 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Extreme UV risk

Avoid direct sun around midday. Use SPF 50+ sunscreen, a hat, protective clothing and sunglasses.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Waikapu

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · WAIKAPU, HAWAII

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

95/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 7:54 PM–4:56 AM

☁ Cloud cover 2% Real hourly forecast for the best viewing hour.

☾ Moonlight 39% Last Quarter · Moon about 30° above the horizon at the best viewing hour.

☄ Meteor activity Aurigids Reference ZHR 6 · Radiant 30° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min37%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

AUG 28–SEP 5

AurigidsStart AUG 28 · Peak SEP 1 · End SEP 5 · ZHR 6 · 80% Moon at peak

ACTIVE NOW

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

UPCOMING

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Waikapu were last refreshed today at 12:24 PM. The current forecast period extends through 06/09/2026 at 11:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.