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Current weather in Ko Olina is few clouds.

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

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

Now · 11:25 PM

Ko Olina Weather & Hourly Forecast

United States · Hawaii · 96707

81°F

Mostly clear night

Feels like: 81°F

💧 Humidity 78% 🌡 Pressure 29.94 inHg 💨 Wind 18 mph 👁 Visibility ☁ Clouds 16% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:20 AM 🌇 Sunset 6:29 PM

Hourly Forecast for Ko Olina

Tomorrow

2:00 AM

Mostly clear night

81° 💧 None 💨 17 mph H 80%29.91 inHg

11:00 AM

Mostly cloudy

83° 💧 None 💨 20 mph H 70%29.94 inHg

8:00 PM

Overcast night

80° 💧 None 💨 17 mph H 81%29.91 inHg

Thursday

5:00 AM

Overcast night

79° 💧 None 💨 15 mph H 83%29.83 inHg

2:00 PM

Overcast

84° 💧 None 💨 23 mph H 64%29.83 inHg

11:00 PM

Mostly cloudy night

80° 💧 None 💨 19 mph H 81%29.88 inHg

Friday

8:00 AM

Overcast

80° 💧 None 💨 20 mph H 80%29.85 inHg

5:00 PM

Light rain

80° 💧 None 💨 19 mph H 82%29.80 inHg

Saturday

2:00 AM

Overcast night

79° 💧 None 💨 24 mph H 85%29.77 inHg

11:00 AM

Overcast

82° 💧 None 💨 29 mph H 77%29.77 inHg

8:00 PM

Light rain

79° 💧 None 💨 28 mph H 88%29.74 inHg

Sunday

5:00 AM

Moderate rain

79° 💧 None 💨 30 mph H 88%29.77 inHg

2:00 PM

Overcast

81° 💧 None 💨 31 mph H 79%29.80 inHg

11:00 PM

Overcast night

80° 💧 None 💨 26 mph H 83%29.85 inHg

Monday

8:00 AM

Partly cloudy

80° 💧 None 💨 21 mph H 80%29.88 inHg

8:00 PM

Light rain

79° 💧 None 💨 7 mph H 81%29.91 inHg

Tomorrow

2:00 AM

Mostly clear night

81° 💧 None 💨 17 mph H 80%29.91 inHg

5:00 AM

Partly cloudy night

80° 💧 None 💨 16 mph H 81%29.88 inHg

8:00 AM

Partly cloudy

81° 💧 None 💨 17 mph H 77%29.94 inHg

11:00 AM

Mostly cloudy

83° 💧 None 💨 20 mph H 70%29.94 inHg

2:00 PM

Overcast

83° 💧 None 💨 20 mph H 70%29.88 inHg

5:00 PM

Overcast

82° 💧 None 💨 18 mph H 72%29.85 inHg

8:00 PM

Overcast night

80° 💧 None 💨 17 mph H 81%29.91 inHg

11:00 PM

Overcast night

79° 💧 None 💨 15 mph H 82%29.91 inHg

Thursday

2:00 AM

Overcast night

78° 💧 None 💨 15 mph H 86%29.85 inHg

5:00 AM

Overcast night

79° 💧 None 💨 15 mph H 83%29.83 inHg

8:00 AM

Overcast

80° 💧 None 💨 16 mph H 79%29.88 inHg

11:00 AM

Overcast

83° 💧 None 💨 20 mph H 68%29.88 inHg

2:00 PM

Overcast

84° 💧 None 💨 23 mph H 64%29.83 inHg

5:00 PM

Overcast

81° 💧 None 💨 21 mph H 75%29.83 inHg

8:00 PM

Overcast night

81° 💧 None 💨 18 mph H 74%29.85 inHg

11:00 PM

Mostly cloudy night

80° 💧 None 💨 19 mph H 81%29.88 inHg

Friday

2:00 AM

Partly cloudy night

79° 💧 None 💨 19 mph H 83%29.83 inHg

5:00 AM

Mostly cloudy night

78° 💧 None 💨 18 mph H 84%29.83 inHg

8:00 AM

Overcast

80° 💧 None 💨 20 mph H 80%29.85 inHg

11:00 AM

Overcast

82° 💧 None 💨 24 mph H 74%29.85 inHg

2:00 PM

Overcast

81° 💧 None 💨 25 mph H 74%29.80 inHg

5:00 PM

Light rain

80° 💧 None 💨 19 mph H 82%29.80 inHg

8:00 PM

Overcast night

80° 💧 None 💨 22 mph H 84%29.83 inHg

11:00 PM

Overcast night

80° 💧 None 💨 25 mph H 84%29.83 inHg

Saturday

2:00 AM

Overcast night

79° 💧 None 💨 24 mph H 85%29.77 inHg

5:00 AM

Overcast night

80° 💧 None 💨 25 mph H 84%29.74 inHg

8:00 AM

Overcast

80° 💧 None 💨 24 mph H 83%29.77 inHg

11:00 AM

Overcast

82° 💧 None 💨 29 mph H 77%29.77 inHg

2:00 PM

Light rain

81° 💧 None 💨 30 mph H 80%29.71 inHg

5:00 PM

Moderate rain

79° 💧 None 💨 30 mph H 86%29.71 inHg

8:00 PM

Light rain

79° 💧 None 💨 28 mph H 88%29.74 inHg

11:00 PM

Light rain

79° 💧 None 💨 31 mph H 88%29.77 inHg

Sunday

2:00 AM

Light rain

79° 💧 None 💨 31 mph H 87%29.74 inHg

5:00 AM

Moderate rain

79° 💧 None 💨 30 mph H 88%29.77 inHg

8:00 AM

Light rain

80° 💧 None 💨 30 mph H 85%29.80 inHg

11:00 AM

Mostly cloudy

81° 💧 None 💨 30 mph H 82%29.83 inHg

2:00 PM

Overcast

81° 💧 None 💨 31 mph H 79%29.80 inHg

5:00 PM

Overcast

81° 💧 None 💨 31 mph H 78%29.80 inHg

8:00 PM

Overcast night

80° 💧 None 💨 27 mph H 82%29.83 inHg

11:00 PM

Overcast night

80° 💧 None 💨 26 mph H 83%29.85 inHg

Monday

2:00 AM

Overcast night

80° 💧 None 💨 26 mph H 82%29.83 inHg

5:00 AM

Mostly clear night

80° 💧 None 💨 23 mph H 83%29.83 inHg

8:00 AM

Partly cloudy

80° 💧 None 💨 21 mph H 80%29.88 inHg

11:00 AM

Mostly cloudy

81° 💧 None 💨 19 mph H 77%29.91 inHg

2:00 PM

Light rain

82° 💧 None 💨 14 mph H 73%29.88 inHg

8:00 PM

Light rain

79° 💧 None 💨 7 mph H 81%29.91 inHg

Tuesday

2:00 AM

Light rain

79° 💧 None 💨 12 mph H 83%29.91 inHg

8:00 AM

Mostly sunny

79° 💧 None 💨 6 mph H 86%29.94 inHg

2:00 PM

Mostly sunny

80° 💧 None 💨 8 mph H 78%29.88 inHg

8:00 PM

Mostly cloudy night

80° 💧 None 💨 6 mph H 80%29.94 inHg

Wednesday

2:00 AM

Mostly clear night

79° 💧 None 💨 7 mph H 85%29.94 inHg

8:00 AM

Mostly sunny

80° 💧 None 💨 11 mph H 81%29.97 inHg

2:00 PM

Partly cloudy

82° 💧 None 💨 16 mph H 70%29.91 inHg

8:00 PM

Partly cloudy night

79° 💧 None 💨 11 mph H 80%29.97 inHg

Thursday

2:00 AM

Clear night

77° 💧 None 💨 10 mph H 82%29.94 inHg

8:00 AM

Mostly sunny

78° 💧 None 💨 12 mph H 78%30.00 inHg

2:00 PM

Light rain

80° 💧 None 💨 11 mph H 75%29.91 inHg

8:00 PM

Mostly clear night

79° 💧 None 💨 11 mph H 75%29.97 inHg

Friday

2:00 AM

Clear night

77° 💧 None 💨 8 mph H 80%29.97 inHg

8:00 AM

Sunny

77° 💧 None 💨 5 mph H 80%30.00 inHg

2:00 PM

Mostly sunny

77° 💧 None 💨 4 mph H 68%29.94 inHg

8:00 PM

Clear night

78° 💧 None 💨 5 mph H 72%29.97 inHg

Saturday

2:00 AM

Clear night

75° 💧 None 💨 6 mph H 88%29.94 inHg

8:00 AM

Sunny

76° 💧 None 💨 5 mph H 83%30.00 inHg

2:00 PM

Sunny

78° 💧 None 💨 12 mph H 75%29.91 inHg

8:00 PM

Clear night

78° 💧 None 💨 9 mph H 79%29.94 inHg

Sunday

2:00 AM

Mostly clear night

76° 💧 None 💨 6 mph H 90%29.94 inHg

8:00 AM

Sunny

77° 💧 None 💨 4 mph H 86%29.97 inHg

2:00 PM

Light rain

80° 💧 None 💨 5 mph H 73%29.91 inHg

8:00 PM

Clear night

79° 💧 None 💨 10 mph H 76%29.94 inHg

Monday

2:00 AM

Mostly clear night

77° 💧 None 💨 7 mph H 83%29.94 inHg

8:00 AM

Sunny

79° 💧 None 💨 8 mph H 78%29.97 inHg

2:00 PM

Light rain

82° 💧 None 💨 6 mph H 68%29.94 inHg

8:00 PM

Clear night

79° 💧 None 💨 9 mph H 75%29.97 inHg

Tuesday

2:00 AM

Clear night

77° 💧 None 💨 6 mph H 88%29.97 inHg

8:00 AM

Mostly sunny

79° 💧 None 💨 7 mph H 78%30.00 inHg

2:00 PM

Moderate rain

82° 💧 None 💨 13 mph H 67%29.94 inHg

8:00 PM

Mostly clear night

78° 💧 None 💨 15 mph H 77%30.00 inHg

Wednesday

2:00 AM

Clear night

77° 💧 None 💨 13 mph H 75%30.00 inHg

8:00 AM

Sunny

79° 💧 None 💨 14 mph H 69%30.03 inHg

2:00 PM

Mostly sunny

82° 💧 None 💨 16 mph H 66%29.97 inHg

In Ko Olina 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 Ko Olina

TomorrowTomorrow

Mostly cloudy 83°/79° 💧 0.008 in 💨 20 mph

Thursday, Sep 24Thu Sep 24

Overcast 84°/78° 💧 0.013 in 💨 23 mph

Friday, Sep 25Fri Sep 25

Light rain 82°/78° 💧 0.063 in 💨 25 mph

Saturday, Sep 26Sat Sep 26

Moderate rain 82°/79° 💧 0.395 in 💨 31 mph

Sunday, Sep 27Sun Sep 27

Moderate rain 81°/79° 💧 0.315 in 💨 31 mph

Monday, Sep 28Mon Sep 28

Light rain 82°/79° 💧 0.123 in 💨 26 mph

Tuesday, Sep 29Tue Sep 29

Light rain 80°/79° 💧 0.094 in 💨 12 mph

Wednesday, Sep 30Wed Sep 30

Mostly sunny 82°/79° 💧 0.005 in 💨 16 mph

Thursday, Oct 1Thu Oct 1

Light rain 80°/77° 💧 0.029 in 💨 12 mph

Friday, Oct 2Fri Oct 2

Mostly sunny 78°/77° 💧 None 💨 8 mph

Saturday, Oct 3Sat Oct 3

Sunny 78°/75° 💧 0.001 in 💨 12 mph

Sunday, Oct 4Sun Oct 4

Light rain 80°/76° 💧 0.037 in 💨 10 mph

Monday, Oct 5Mon Oct 5

Light rain 82°/77° 💧 0.031 in 💨 9 mph

Tuesday, Oct 6Tue Oct 6

Moderate rain 82°/77° 💧 0.213 in 💨 15 mph

Wednesday, Oct 7Wed Oct 7

Mostly sunny 82°/77° 💧 0.002 in 💨 16 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Ko Olina

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Ko Olina

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 12:00 AM

PM2.5 Fine particles Good 4,4µg/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 11,2µg/m³

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

O₃ Ozone Good 37,5µg/m³

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

NO₂ Nitrogen dioxide Good 0,3µg/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 Ko Olina

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 11,5Extreme —Unavailable

Tomorrow UV 10,6Very high 😊Good

Thursday UV 9,4Very high 😊Good

Friday UV 9,8Very high 🙂Fair

Saturday UV 10,7Very high 🙂Fair

Sunday UV 6,0High —Unavailable

Monday UV 7,0High —Unavailable

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.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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 Ko Olina

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · KO OLINA, HAWAII

Tonight's Stargazing & Shooting Stars

Good observing conditions. Best local viewing window: 2:00 AM–3:00 AM.

78/100Best-hour score

BEST TIME TONIGHT 2:00 AM–3:00 AM Astronomical darkness: 7:42 PM–5:07 AM

☁ Cloud cover 23% Real hourly forecast for the best viewing hour.

☾ Moonlight 89% Waxing Gibbous · Moon about 21° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 63° 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 min40%

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 Ko Olina were last refreshed today at 11:25 PM. 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.