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Now · 8:12 AM

O'Sullivan Beach Weather & Hourly Forecast

Australia · South Australia · 5166

Sunny
16°C
Sunny
Feels like: 13°C
💧 Humidity 58% 🌡 Pressure 1025 hPa 💨 Wind 12 km/h 👁 Visibility 58.0 km Clouds 0% ☀️ UV index 1.5 · Low 🌅 Sunrise 🌇 Sunset

Hourly Weather Forecast for O'Sullivan Beach

Today
Sunny · 8:30 AM Sunny
16° 💧 None 💨 12 km/h H 58%1025 hPa
Sunny · 11:30 AM Sunny
19° 💧 None 💨 10 km/h H 48%1023 hPa
Sunny · 2:30 PM Sunny
20° 💧 None 💨 8 km/h H 47%1021 hPa
Overcast · 5:30 PM Overcast
19° 💧 None 💨 3 km/h H 66%1020 hPa
Overcast night · 8:30 PM Overcast night
17° 💧 None 💨 12 km/h H 56%1020 hPa
Mostly cloudy night · 11:30 PM Mostly cloudy night
18° 💧 None 💨 17 km/h H 46%1018 hPa
Tomorrow
Clear night · 2:30 AM Clear night
17° 💧 None 💨 22 km/h H 53%1015 hPa
Overcast night · 5:30 AM Overcast night
17° 💧 0.8 mm 💨 23 km/h H 54%1014 hPa
Light rain · 8:30 AM Light rain
16° 💧 0.9 mm 💨 21 km/h H 76%1016 hPa
Thunderstorms · 11:30 AM Thunderstorms
16° 💧 3.5 mm 💨 24 km/h H 85%1015 hPa
Mostly sunny · 2:30 PM Mostly sunny
16° 💧 0.1 mm 💨 20 km/h H 75%1016 hPa
Mostly sunny · 5:30 PM Mostly sunny
15° 💧 0.1 mm 💨 14 km/h H 83%1017 hPa
Clear night · 8:30 PM Clear night
14° 💧 0.0 mm 💨 15 km/h H 86%1019 hPa
Partly cloudy night · 11:30 PM Partly cloudy night
14° 💧 0.2 mm 💨 12 km/h H 89%1020 hPa
Monday
Partly cloudy night · 2:30 AM Partly cloudy night
14° 💧 0.2 mm 💨 13 km/h H 88%1020 hPa
Overcast night · 5:30 AM Overcast night
14° 💧 0.1 mm 💨 13 km/h H 87%1021 hPa

In O'Sullivan Beach and, more broadly, across South Australia: This morning, the sky will be a mix of sun and clouds, with mild temperatures around 15 degrees Celsius to 20 degrees Celsius. Light north winds are expected, reaching up to 14 km/h, with gusts up to 20 km/h. As the day progresses into the afternoon, temperatures will warm slightly, reaching up to 25 degrees Celsius. The wind will remain gentle, maintaining a breezy northerly direction. No rain is forecasted, so the day should be dry and pleasant. Overall, it promises to be a mild and partly cloudy day with gentle breezes.

15-Day Weather Forecast for O'Sullivan Beach

Saturday, Sep 12Sat Sep 12 Mostly sunny Mostly sunny 21°/16° 💧 None 💨 23 km/h
TomorrowTomorrow Thunderstorms Thunderstorms 17°/13° 💧 None 💨 25 km/h
Monday, Sep 14Mon Sep 14 Light rain Light rain 15°/12° 💧 8.1 mm 💨 20 km/h
Tuesday, Sep 15Tue Sep 15 Mostly cloudy Mostly cloudy 14°/10° 💧 None 💨 22 km/h
Wednesday, Sep 16Wed Sep 16 Partly cloudy Partly cloudy 14°/ 💧 None 💨 16 km/h
Thursday, Sep 17Thu Sep 17 Sunny Sunny 14°/11° 💧 None 💨 13 km/h
Friday, Sep 18Fri Sep 18 Sunny Sunny 18°/14° 💧 None 💨 16 km/h
Saturday, Sep 19Sat Sep 19 Sunny Sunny 22°/16° 💧 None 💨 23 km/h
Sunday, Sep 20Sun Sep 20 Overcast Overcast 16°/11° 💧 0.2 mm 💨 13 km/h
Monday, Sep 21Mon Sep 21 Partly cloudy Partly cloudy 17°/13° 💧 0.0 mm 💨 12 km/h
Tuesday, Sep 22Tue Sep 22 Mostly cloudy Mostly cloudy 21°/17° 💧 0.1 mm 💨 16 km/h
Wednesday, Sep 23Wed Sep 23 Light rain Light rain 20°/14° 💧 6.2 mm 💨 9 km/h
Thursday, Sep 24Thu Sep 24 Mostly sunny Mostly sunny 15°/11° 💧 1.4 mm 💨 17 km/h
Friday, Sep 25Fri Sep 25 Mostly cloudy Mostly cloudy 16°/13° 💧 0.5 mm 💨 10 km/h
Saturday, Sep 26Sat Sep 26 Mostly cloudy Mostly cloudy 19°/16° 💧 3.1 mm 💨 15 km/h

TEMPERATURE OUTLOOK

Hourly Temperature and Weather Conditions in O'Sullivan Beach

Vertical axis: °C · Color based on temperature
Sunny at 8:30 AM
61° Today 8:30 AM
Sunny at 9:30 AM
64° 9:30 AM
Sunny at 10:30 AM
66° 10:30 AM
Sunny at 11:30 AM
67° 11:30 AM
Sunny at 12:30 PM
68° Today 12:30 PM
Mostly sunny at 1:30 PM
68° 1:30 PM
Sunny at 2:30 PM
69° 2:30 PM
Mostly sunny at 3:30 PM
69° 3:30 PM
Mostly cloudy at 4:30 PM
68° Today 4:30 PM
Overcast at 5:30 PM
66° 5:30 PM
Overcast night at 6:30 PM
64° 6:30 PM
Overcast night at 7:30 PM
63° 7:30 PM
Overcast night at 8:30 PM
63° Today 8:30 PM
Overcast night at 9:30 PM
62° 9:30 PM
Overcast night at 10:30 PM
64° 10:30 PM
Mostly cloudy night at 11:30 PM
64° 11:30 PM
Mostly cloudy night at 12:30 AM
64° Tomorrow 12:30 AM
Clear night at 1:30 AM
64° 1:30 AM
Clear night at 2:30 AM
63° 2:30 AM
Mostly cloudy night at 3:30 AM
63° 3:30 AM
Partly cloudy night at 4:30 AM
64° Tomorrow 4:30 AM
Overcast night at 5:30 AM
63° 5:30 AM
Overcast at 6:30 AM
63° 6:30 AM
Light rain at 7:30 AM
61° 7:30 AM
Light rain at 8:30 AM
60° Tomorrow 8:30 AM
Overcast at 9:30 AM
63° 9:30 AM
Light rain at 10:30 AM
63° 10:30 AM
Thunderstorms at 11:30 AM
61° 11:30 AM
Light rain at 12:30 PM
62° Tomorrow 12:30 PM
Light rain at 1:30 PM
62° 1:30 PM
Mostly sunny at 2:30 PM
61° 2:30 PM
Partly cloudy at 3:30 PM
60° 3:30 PM
Partly cloudy at 4:30 PM
59° Tomorrow 4:30 PM
Mostly sunny at 5:30 PM
59° 5:30 PM
Mostly clear night at 6:30 PM
58° 6:30 PM
Clear night at 7:30 PM
58° 7:30 PM
Clear night at 8:30 PM
58° Tomorrow 8:30 PM
Mostly clear night at 9:30 PM
57° 9:30 PM
Mostly clear night at 10:30 PM
57° 10:30 PM
Partly cloudy night at 11:30 PM
57° 11:30 PM
Partly cloudy night at 12:30 AM
57° Monday 12:30 AM
Partly cloudy night at 1:30 AM
57° 1:30 AM
Partly cloudy night at 2:30 AM
56° 2:30 AM
Mostly cloudy night at 3:30 AM
56° 3:30 AM
Overcast night at 4:30 AM
56° Monday 4:30 AM
Overcast night at 5:30 AM
56° 5:30 AM
Mostly cloudy at 6:30 AM
56° 6:30 AM
Mostly cloudy at 7:30 AM
57° 7:30 AM
Overcast at 8:30 AM
57° Monday 8:30 AM
Light rain at 9:30 AM
59° 9:30 AM
Overcast at 10:30 AM
59° 10:30 AM
Overcast at 11:30 AM
59° 11:30 AM
Overcast at 12:30 PM
59° Monday 12:30 PM
Overcast at 1:30 PM
59° 1:30 PM
Overcast at 2:30 PM
59° 2:30 PM
Overcast at 3:30 PM
59° 3:30 PM
Mostly sunny at 4:30 PM
59° Monday 4:30 PM
Overcast at 5:30 PM
58° 5:30 PM
Mostly cloudy night at 6:30 PM
58° 6:30 PM
Light rain at 7:30 PM
57° 7:30 PM
Light rain at 8:30 PM
58° Monday 8:30 PM
Partly cloudy night at 9:30 PM
57° 9:30 PM
Light rain at 12:30 AM
56° 12:30 AM
Mostly clear night at 3:30 AM
54° 3:30 AM
Partly cloudy at 6:30 AM
53° Tuesday 6:30 AM
Mostly cloudy at 9:30 AM
56° 9:30 AM
Mostly cloudy at 12:30 PM
57° 12:30 PM
Partly cloudy at 3:30 PM
57° 3:30 PM
Partly cloudy night at 6:30 PM
54° Tuesday 6:30 PM
Mostly clear night at 9:30 PM
52° 9:30 PM
Partly cloudy night at 12:30 AM
52° 12:30 AM
Mostly cloudy night at 3:30 AM
51° 3:30 AM
Mostly cloudy at 6:30 AM
51° Wednesday 6:30 AM
Partly cloudy at 9:30 AM
53° 9:30 AM
Mostly sunny at 12:30 PM
57° 12:30 PM
Sunny at 3:30 PM
57° 3:30 PM
Clear night at 6:30 PM
53° Wednesday 6:30 PM
Clear night at 9:30 PM
52° 9:30 PM
Clear night at 12:30 AM
50° 12:30 AM
Clear night at 3:30 AM
47° 3:30 AM
Sunny at 6:30 AM
47° Thursday 6:30 AM
Sunny at 9:30 AM
52° 9:30 AM
Sunny at 12:30 PM
56° 12:30 PM
Sunny at 3:30 PM
58° 3:30 PM
Clear night at 6:30 PM
57° Thursday 6:30 PM
Clear night at 9:30 PM
55° 9:30 PM
Clear night at 3:30 AM
53° 3:30 AM
Sunny at 9:30 AM
59° 9:30 AM
Sunny at 3:30 PM
64° Friday 3:30 PM
Clear night at 9:30 PM
58° 9:30 PM
Clear night at 3:30 AM
58° 3:30 AM
Sunny at 9:30 AM
64° 9:30 AM
Sunny at 3:30 PM
71° Saturday 3:30 PM
Clear night at 9:30 PM
68° 9:30 PM
Clear night at 3:30 AM
61° 3:30 AM
Overcast at 9:30 AM
59° 9:30 AM
Sunny at 3:30 PM
60° Sunday 3:30 PM
Clear night at 9:30 PM
55° 9:30 PM
Clear night at 3:30 AM
52° 3:30 AM
Partly cloudy at 9:30 AM
55° 9:30 AM
Sunny at 3:30 PM
62° Monday 3:30 PM
Partly cloudy night at 9:30 PM
62° 9:30 PM
Mostly clear night at 3:30 AM
59° 3:30 AM
Mostly cloudy at 9:30 AM
65° 9:30 AM
Overcast at 3:30 PM
69° Tuesday 3:30 PM
Overcast night at 9:30 PM
68° 9:30 PM
Mostly cloudy night at 3:30 AM
63° 3:30 AM
Overcast at 9:30 AM
68° 9:30 AM
Overcast at 3:30 PM
66° Wednesday 3:30 PM
Mostly cloudy night at 9:30 PM
61° 9:30 PM
Light rain at 3:30 AM
58° 3:30 AM
Mostly sunny at 9:30 AM
59° 9:30 AM
Sunny at 3:30 PM
60° Thursday 3:30 PM
Clear night at 9:30 PM
56° 9:30 PM
Partly cloudy night at 3:30 AM
52° 3:30 AM
Partly cloudy at 9:30 AM
58° 9:30 AM
Mostly cloudy at 3:30 PM
61° Friday 3:30 PM
Overcast night at 9:30 PM
57° 9:30 PM
Mostly cloudy night at 3:30 AM
55° 3:30 AM
Mostly cloudy at 9:30 AM
63° 9:30 AM
Overcast at 3:30 PM
65° Saturday 3:30 PM
Partly cloudy night at 9:30 PM
61° 9:30 PM

AIR QUALITY FORECAST

Air Quality in O'Sullivan Beach

Hourly forecast · Updated every 2 hours
Good
Nearest forecast value 8:30 AM
PM2.5 Fine particles Good 4,5µg/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 13,4µg/m³

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

O₃ Ozone Good 49,7µg/m³

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

NO₂ Nitrogen dioxide Good 1,9µg/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

Sun exposure and health risks in O'Sullivan Beach

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 6,8High 😊Good
Tomorrow UV 6,5High 🙂Fair
Monday UV 6,6High 🙂Fair
Tuesday UV 4,9Moderate 🙂Fair
Wednesday UV 5,0Moderate 🙂Fair
Thursday UV 6,0High Unavailable
Friday UV 6,0High Unavailable
Hourly UV index today
9:00 AMUV 3,2 10:00 AMUV 5,1 11:00 AMUV 6,5 12:00 PMUV 6,8 1:00 PMUV 5,9 2:00 PMUV 4,2 3:00 PMUV 2,3 4:00 PMUV 0,8 5:00 PMUV 0,2 6:00 PMUV 0,0 7:00 PMUV 0,0
Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

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.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Speed in O'Sullivan Beach

Vertical axis: km/h · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in km/h. Today 8:30 AM 9:30 AM 10:30 AM 11:30 AM Today 12:30 PM 1:30 PM 2:30 PM 3:30 PM Today 4:30 PM 5:30 PM 6:30 PM 7:30 PM Today 8:30 PM 9:30 PM 10:30 PM 11:30 PM Tomorrow 12:30 AM 1:30 AM 2:30 AM 3:30 AM Tomorrow 4:30 AM 5:30 AM 6:30 AM 7:30 AM Tomorrow 8:30 AM 9:30 AM 10:30 AM 11:30 AM Tomorrow 12:30 PM 1:30 PM 2:30 PM 3:30 PM Tomorrow 4:30 PM 5:30 PM 6:30 PM 7:30 PM Tomorrow 8:30 PM 9:30 PM 10:30 PM 11:30 PM Monday 12:30 AM 1:30 AM 2:30 AM 3:30 AM Monday 4:30 AM 5:30 AM 6:30 AM 7:30 AM Monday 8:30 AM 9:30 AM 10:30 AM 11:30 AM Monday 12:30 PM 1:30 PM 2:30 PM 3:30 PM Monday 4:30 PM 5:30 PM 6:30 PM 7:30 PM Monday 8:30 PM 9:30 PM 12:30 AM 3:30 AM Tuesday 6:30 AM 9:30 AM 12:30 PM 3:30 PM Tuesday 6:30 PM 9:30 PM 12:30 AM 3:30 AM Wednesday 6:30 AM 9:30 AM 12:30 PM 3:30 PM Wednesday 6:30 PM 9:30 PM 12:30 AM 3:30 AM Thursday 6:30 AM 9:30 AM 12:30 PM 3:30 PM Thursday 6:30 PM 9:30 PM 3:30 AM 9:30 AM Friday 3:30 PM 9:30 PM 3:30 AM 9:30 AM Saturday 3:30 PM 9:30 PM 3:30 AM 9:30 AM Sunday 3:30 PM 9:30 PM 3:30 AM 9:30 AM Monday 3:30 PM 9:30 PM 3:30 AM 9:30 AM Tuesday 3:30 PM 9:30 PM 3:30 AM 9:30 AM Wednesday 3:30 PM 9:30 PM 3:30 AM 9:30 AM Thursday 3:30 PM 9:30 PM 3:30 AM 9:30 AM Friday 3:30 PM 9:30 PM 3:30 AM 9:30 AM Saturday 3:30 PM 9:30 PM
Sustained wind Max gusts
NIGHT SKY · O'SULLIVAN BEACH, SOUTH AUSTRALIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 2:30 AM–3:30 AM.

99/100Best-hour score
BEST TIME TONIGHT 2:30 AM–3:30 AM Astronomical darkness: 7:28 PM–4:54 AM
Cloud cover 2% Real hourly forecast for the best viewing hour.
Moonlight 1% New Moon · Moon below the horizon at the best viewing hour.
Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 12° high at the best hour.
Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min29%
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 5–SEP 21
September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak
ACTIVE NOW
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
OCT 20–DEC 10
Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% 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.

Forecast data for O'Sullivan Beach were last refreshed today at 8:12 AM. The current forecast period extends through 14/09/2026 at 5:30 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.