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Current weather in Waikapu is overcast clouds.

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This page shows hourly weather forecast for Waikapu, including temperature, wind, precipitation, humidity and cloud cover.

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

Now · 1:34 AM

Waikapu Weather & Hourly Forecast

United States · Hawaii · 96793

76°F

Overcast night

Feels like: 82°F

💧 Humidity 88% 🌡 Pressure 29.91 inHg 💨 Wind 6 mph 👁 Visibility ☁ Clouds 99% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:14 AM 🌇 Sunset 6:22 PM

Hourly Forecast for Waikapu

Today

2:00 AM

Overcast night

76° 💧 None 💨 6 mph H 88%29.91 inHg

11:00 AM

Mostly cloudy

79° 💧 None 💨 3 mph H 79%29.94 inHg

8:00 PM

Overcast night

76° 💧 None 💨 4 mph H 87%29.88 inHg

Tomorrow

5:00 AM

Overcast night

76° 💧 None 💨 8 mph H 87%29.83 inHg

2:00 PM

Light rain

78° 💧 None 💨 5 mph H 80%29.80 inHg

11:00 PM

Moderate rain

76° 💧 None 💨 4 mph H 77%29.85 inHg

Friday

8:00 AM

Overcast

77° 💧 None 💨 17 mph H 88%29.80 inHg

5:00 PM

Light rain

78° 💧 None 💨 21 mph H 87%29.71 inHg

Saturday

2:00 AM

Moderate rain

77° 💧 None 💨 26 mph H 91%29.68 inHg

11:00 AM

Moderate rain

78° 💧 None 💨 21 mph H 91%29.65 inHg

8:00 PM

Heavy rain

76° 💧 None 💨 16 mph H 95%29.71 inHg

Sunday

5:00 AM

Light rain

75° 💧 None 💨 7 mph H 94%29.77 inHg

2:00 PM

Light rain

76° 💧 None 💨 7 mph H 91%29.80 inHg

11:00 PM

Light rain

74° 💧 None 💨 10 mph H 92%29.88 inHg

Monday

8:00 AM

Light rain

75° 💧 None 💨 7 mph H 87%29.91 inHg

8:00 PM

Mostly clear night

76° 💧 None 💨 6 mph H 79%29.94 inHg

Today

2:00 AM

Overcast night

76° 💧 None 💨 6 mph H 88%29.91 inHg

5:00 AM

Overcast night

76° 💧 None 💨 7 mph H 89%29.88 inHg

8:00 AM

Mostly cloudy

77° 💧 None 💨 5 mph H 84%29.94 inHg

11:00 AM

Mostly cloudy

79° 💧 None 💨 3 mph H 79%29.94 inHg

2:00 PM

Mostly cloudy

79° 💧 None 💨 3 mph H 80%29.85 inHg

5:00 PM

Partly cloudy

78° 💧 None 💨 2 mph H 85%29.85 inHg

8:00 PM

Overcast night

76° 💧 None 💨 4 mph H 87%29.88 inHg

11:00 PM

Overcast night

77° 💧 None 💨 7 mph H 84%29.88 inHg

Tomorrow

2:00 AM

Overcast night

76° 💧 None 💨 6 mph H 88%29.85 inHg

5:00 AM

Overcast night

76° 💧 None 💨 8 mph H 87%29.83 inHg

8:00 AM

Light rain

77° 💧 None 💨 6 mph H 83%29.85 inHg

11:00 AM

Overcast

77° 💧 None 💨 1 mph H 83%29.85 inHg

2:00 PM

Light rain

78° 💧 None 💨 5 mph H 80%29.80 inHg

5:00 PM

Light rain

78° 💧 None 💨 7 mph H 83%29.80 inHg

8:00 PM

Light rain

76° 💧 None 💨 1 mph H 85%29.85 inHg

11:00 PM

Moderate rain

76° 💧 None 💨 4 mph H 77%29.85 inHg

Friday

2:00 AM

Moderate rain

76° 💧 None 💨 8 mph H 86%29.80 inHg

5:00 AM

Moderate rain

75° 💧 None 💨 9 mph H 89%29.77 inHg

8:00 AM

Overcast

77° 💧 None 💨 17 mph H 88%29.80 inHg

11:00 AM

Overcast

78° 💧 None 💨 20 mph H 86%29.80 inHg

2:00 PM

Light rain

78° 💧 None 💨 20 mph H 87%29.74 inHg

5:00 PM

Light rain

78° 💧 None 💨 21 mph H 87%29.71 inHg

8:00 PM

Light rain

78° 💧 None 💨 22 mph H 89%29.77 inHg

11:00 PM

Light rain

78° 💧 None 💨 25 mph H 90%29.74 inHg

Saturday

2:00 AM

Moderate rain

77° 💧 None 💨 26 mph H 91%29.68 inHg

5:00 AM

Moderate rain

78° 💧 None 💨 29 mph H 89%29.65 inHg

8:00 AM

Moderate rain

78° 💧 None 💨 25 mph H 89%29.65 inHg

11:00 AM

Moderate rain

78° 💧 None 💨 21 mph H 91%29.65 inHg

2:00 PM

Moderate rain

78° 💧 None 💨 20 mph H 90%29.62 inHg

5:00 PM

Moderate rain

77° 💧 None 💨 16 mph H 93%29.68 inHg

8:00 PM

Heavy rain

76° 💧 None 💨 16 mph H 95%29.71 inHg

11:00 PM

Moderate rain

76° 💧 None 💨 11 mph H 96%29.77 inHg

Sunday

2:00 AM

Moderate rain

75° 💧 None 💨 9 mph H 96%29.77 inHg

5:00 AM

Light rain

75° 💧 None 💨 7 mph H 94%29.77 inHg

8:00 AM

Light rain

75° 💧 None 💨 9 mph H 96%29.83 inHg

11:00 AM

Light rain

77° 💧 None 💨 9 mph H 87%29.85 inHg

2:00 PM

Light rain

76° 💧 None 💨 7 mph H 91%29.80 inHg

5:00 PM

Light rain

76° 💧 None 💨 7 mph H 92%29.80 inHg

8:00 PM

Moderate rain

75° 💧 None 💨 8 mph H 93%29.85 inHg

11:00 PM

Light rain

74° 💧 None 💨 10 mph H 92%29.88 inHg

Monday

2:00 AM

Light rain

75° 💧 None 💨 6 mph H 88%29.85 inHg

5:00 AM

Light rain

73° 💧 None 💨 8 mph H 93%29.85 inHg

8:00 AM

Light rain

75° 💧 None 💨 7 mph H 87%29.91 inHg

11:00 AM

Overcast

77° 💧 None 💨 6 mph H 80%29.94 inHg

2:00 PM

Overcast

77° 💧 None 💨 3 mph H 81%29.88 inHg

8:00 PM

Mostly clear night

76° 💧 None 💨 6 mph H 79%29.94 inHg

Tuesday

2:00 AM

Partly cloudy night

77° 💧 None 💨 7 mph H 73%29.91 inHg

8:00 AM

Mostly sunny

78° 💧 None 💨 4 mph H 69%29.97 inHg

2:00 PM

Mostly sunny

79° 💧 None 💨 7 mph H 68%29.91 inHg

8:00 PM

Mostly clear night

78° 💧 None 💨 8 mph H 70%29.97 inHg

Wednesday

2:00 AM

Clear night

76° 💧 None 💨 9 mph H 81%29.97 inHg

8:00 AM

Mostly sunny

76° 💧 None 💨 8 mph H 84%29.97 inHg

2:00 PM

Sunny

78° 💧 None 💨 3 mph H 75%29.91 inHg

8:00 PM

Mostly clear night

73° 💧 None 💨 5 mph H 91%29.97 inHg

Thursday

2:00 AM

Mostly clear night

74° 💧 None 💨 10 mph H 78%29.97 inHg

8:00 AM

Mostly sunny

75° 💧 None 💨 8 mph H 82%30.00 inHg

2:00 PM

Partly cloudy

77° 💧 None 💨 3 mph H 76%29.94 inHg

8:00 PM

Mostly clear night

74° 💧 None 💨 4 mph H 84%30.00 inHg

Friday

2:00 AM

Mostly clear night

74° 💧 None 💨 6 mph H 77%29.97 inHg

8:00 AM

Mostly sunny

75° 💧 None 💨 5 mph H 70%30.00 inHg

2:00 PM

Mostly sunny

79° 💧 None 💨 3 mph H 61%29.94 inHg

8:00 PM

Mostly clear night

75° 💧 None 💨 5 mph H 80%29.97 inHg

Saturday

2:00 AM

Mostly clear night

75° 💧 None 💨 4 mph H 81%29.94 inHg

8:00 AM

Mostly sunny

76° 💧 None 💨 3 mph H 78%30.00 inHg

2:00 PM

Mostly sunny

80° 💧 None 💨 1 mph H 63%29.91 inHg

8:00 PM

Mostly clear night

75° 💧 None 💨 7 mph H 84%29.94 inHg

Sunday

2:00 AM

Mostly clear night

74° 💧 None 💨 7 mph H 87%29.94 inHg

8:00 AM

Mostly sunny

77° 💧 None 💨 6 mph H 74%29.97 inHg

2:00 PM

Mostly sunny

78° 💧 None 💨 5 mph H 75%29.91 inHg

8:00 PM

Mostly clear night

75° 💧 None 💨 6 mph H 86%29.97 inHg

Monday

2:00 AM

Mostly clear night

74° 💧 None 💨 8 mph H 84%29.94 inHg

8:00 AM

Mostly sunny

75° 💧 None 💨 8 mph H 80%29.97 inHg

2:00 PM

Mostly sunny

79° 💧 None 💨 5 mph H 63%29.94 inHg

8:00 PM

Mostly clear night

74° 💧 None 💨 7 mph H 81%30.00 inHg

Tuesday

2:00 AM

Partly cloudy night

74° 💧 None 💨 7 mph H 82%29.97 inHg

8:00 AM

Mostly sunny

75° 💧 None 💨 4 mph H 80%30.00 inHg

2:00 PM

Light rain

78° 💧 None 💨 4 mph H 75%29.94 inHg

8:00 PM

Mostly clear night

75° 💧 None 💨 6 mph H 88%30.00 inHg

Wednesday

2:00 AM

Partly cloudy night

73° 💧 None 💨 9 mph H 91%30.00 inHg

8:00 AM

Partly cloudy

73° 💧 None 💨 6 mph H 90%30.03 inHg

2:00 PM

Partly cloudy

76° 💧 None 💨 2 mph H 84%29.97 inHg

In Waikapu and, more broadly, across the state of Hawaii: The evening will feature mostly cloudy skies with temperatures holding steady around 80 degrees Fahrenheit. Winds will be from the northeast at a moderate pace, reaching up to 13 mph, with gusts up to 17 mph. No precipitation is expected during the next few hours, so it should remain dry. Temperatures are expected to stay mild to warm, providing comfortable conditions as the night progresses. Residents can generally expect a calm evening with no significant weather disturbances.

15-Day Weather Outlook for Waikapu

Wednesday, Sep 23Wed Sep 23

Mostly cloudy 79°/76° 💧 0.027 in 💨 7 mph

TomorrowTomorrow

Moderate rain 78°/76° 💧 0.251 in 💨 8 mph

Friday, Sep 25Fri Sep 25

Moderate rain 78°/75° 💧 0.968 in 💨 25 mph

Saturday, Sep 26Sat Sep 26

Heavy rain 78°/76° 💧 2.885 in 💨 29 mph

Sunday, Sep 27Sun Sep 27

Moderate rain 77°/74° 💧 1.043 in 💨 10 mph

Monday, Sep 28Mon Sep 28

Light rain 77°/73° 💧 0.185 in 💨 8 mph

Tuesday, Sep 29Tue Sep 29

Partly cloudy 79°/77° 💧 0.004 in 💨 8 mph

Wednesday, Sep 30Wed Sep 30

Mostly sunny 78°/73° 💧 0.010 in 💨 9 mph

Thursday, Oct 1Thu Oct 1

Mostly sunny 77°/74° 💧 0.019 in 💨 10 mph

Friday, Oct 2Fri Oct 2

Mostly sunny 79°/74° 💧 0.006 in 💨 6 mph

Saturday, Oct 3Sat Oct 3

Mostly sunny 80°/75° 💧 0.001 in 💨 7 mph

Sunday, Oct 4Sun Oct 4

Mostly sunny 78°/74° 💧 0.031 in 💨 7 mph

Monday, Oct 5Mon Oct 5

Mostly sunny 79°/74° 💧 0.016 in 💨 8 mph

Tuesday, Oct 6Tue Oct 6

Light rain 78°/74° 💧 0.034 in 💨 7 mph

Wednesday, Oct 7Wed Oct 7

Partly cloudy 76°/73° 💧 0.067 in 💨 9 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 AM

PM2.5 Fine particles Good 5,7µg/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 11,9µg/m³

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

O₃ Ozone Good 42,3µg/m³

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

NO₂ Nitrogen dioxide Good 0,2µg/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 9,1Very high 😊Good

Tomorrow UV 5,5Moderate 😊Good

Friday UV 9,6Very high 🙂Fair

Saturday UV 10,3Very high 😊Good

Sunday UV 7,0High —Unavailable

Monday UV 6,0High —Unavailable

Tuesday UV 5,0Moderate —Unavailable

Hourly UV index today

7:00 AMUV 0,1 8:00 AMUV 0,9 9:00 AMUV 3,0 10:00 AMUV 5,2 11:00 AMUV 6,5 12:00 PMUV 8,4 1:00 PMUV 9,1 2:00 PMUV 7,6 3:00 PMUV 5,3 4:00 PMUV 2,6 5:00 PMUV 0,9 6:00 PMUV 0,1

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

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

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

Local night-sky conditions and meteor activity for Jasper.

26/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 100% Real hourly forecast for the best viewing hour.

☾ Moonlight 90% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 71° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

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

SEP 20–NOV 20

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

ACTIVE NOW

OCT 2–NOV 7

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

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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 1:30 AM. The current forecast period extends through 28/09/2026 at 8:00 PM. 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.