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Current weather in Nepean Bay is clear sky.

Where can I find the hourly weather forecast for Nepean Bay?

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

Is the weather forecast for Nepean Bay updated regularly?

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

Now · 4:55 AM

Nepean Bay Weather & Hourly Forecast

Australia · South Australia · 5223

12°C

Clear night

Feels like: 9°C

💧 Humidity 94% 🌡 Pressure 1032 hPa 💨 Wind 15 km/h 👁 Visibility 31.4 km ☁ Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Nepean Bay

Today

5:30 AM

Clear night

12° 💧 None 💨 17 km/h H 91%1032 hPa

8:30 AM

Sunny

13° 💧 None 💨 12 km/h H 81%1034 hPa

11:30 AM

Sunny

14° 💧 None 💨 12 km/h H 68%1032 hPa

2:30 PM

Mostly cloudy

14° 💧 None 💨 9 km/h H 66%1029 hPa

5:30 PM

Overcast

15° 💧 None 💨 4 km/h H 70%1028 hPa

8:30 PM

Overcast night

13° 💧 None 💨 13 km/h H 87%1028 hPa

11:30 PM

Overcast night

14° 💧 None 💨 13 km/h H 85%1027 hPa

Tomorrow

2:30 AM

Clear night

14° 💧 None 💨 14 km/h H 81%1025 hPa

5:30 AM

Clear night

14° 💧 None 💨 14 km/h H 82%1024 hPa

8:30 AM

Sunny

15° 💧 None 💨 17 km/h H 82%1025 hPa

11:30 AM

Sunny

15° 💧 None 💨 17 km/h H 78%1023 hPa

2:30 PM

Mostly sunny

16° 💧 None 💨 14 km/h H 75%1020 hPa

5:30 PM

Overcast

16° 💧 None 💨 13 km/h H 73%1019 hPa

8:30 PM

Overcast night

16° 💧 None 💨 18 km/h H 70%1019 hPa

11:30 PM

Partly cloudy night

17° 💧 None 💨 22 km/h H 68%1017 hPa

Sunday

2:30 AM

Mostly clear night

16° 💧 None 💨 23 km/h H 75%1015 hPa

Today

5:30 AM

Clear night

12° 💧 None 💨 17 km/h H 91%1032 hPa

6:30 AM

Sunny

11° 💧 None 💨 15 km/h H 89%1033 hPa

7:30 AM

Sunny

12° 💧 None 💨 14 km/h H 87%1033 hPa

8:30 AM

Sunny

13° 💧 None 💨 12 km/h H 81%1034 hPa

9:30 AM

Sunny

14° 💧 None 💨 11 km/h H 75%1033 hPa

10:30 AM

Sunny

14° 💧 None 💨 12 km/h H 70%1033 hPa

11:30 AM

Sunny

14° 💧 None 💨 12 km/h H 68%1032 hPa

12:30 PM

Sunny

14° 💧 None 💨 11 km/h H 67%1031 hPa

1:30 PM

Mostly sunny

14° 💧 None 💨 11 km/h H 66%1030 hPa

2:30 PM

Mostly cloudy

14° 💧 None 💨 9 km/h H 66%1029 hPa

3:30 PM

Overcast

15° 💧 None 💨 7 km/h H 63%1029 hPa

4:30 PM

Overcast

15° 💧 None 💨 4 km/h H 64%1028 hPa

5:30 PM

Overcast

15° 💧 None 💨 4 km/h H 70%1028 hPa

6:30 PM

Mostly cloudy night

14° 💧 None 💨 11 km/h H 78%1028 hPa

7:30 PM

Overcast night

13° 💧 None 💨 13 km/h H 83%1028 hPa

8:30 PM

Overcast night

13° 💧 None 💨 13 km/h H 87%1028 hPa

9:30 PM

Overcast night

13° 💧 None 💨 13 km/h H 88%1028 hPa

10:30 PM

Overcast night

14° 💧 None 💨 13 km/h H 87%1028 hPa

11:30 PM

Overcast night

14° 💧 None 💨 13 km/h H 85%1027 hPa

Tomorrow

12:30 AM

Mostly clear night

14° 💧 None 💨 14 km/h H 84%1026 hPa

1:30 AM

Mostly clear night

14° 💧 None 💨 14 km/h H 82%1026 hPa

2:30 AM

Clear night

14° 💧 None 💨 14 km/h H 81%1025 hPa

3:30 AM

Clear night

14° 💧 None 💨 15 km/h H 80%1024 hPa

4:30 AM

Clear night

14° 💧 None 💨 15 km/h H 80%1024 hPa

5:30 AM

Clear night

14° 💧 None 💨 14 km/h H 82%1024 hPa

6:30 AM

Sunny

14° 💧 None 💨 15 km/h H 82%1024 hPa

7:30 AM

Sunny

14° 💧 None 💨 16 km/h H 81%1025 hPa

8:30 AM

Sunny

15° 💧 None 💨 17 km/h H 82%1025 hPa

9:30 AM

Sunny

15° 💧 None 💨 18 km/h H 83%1024 hPa

10:30 AM

Sunny

15° 💧 None 💨 18 km/h H 80%1024 hPa

11:30 AM

Sunny

15° 💧 None 💨 17 km/h H 78%1023 hPa

12:30 PM

Sunny

15° 💧 None 💨 16 km/h H 78%1022 hPa

1:30 PM

Mostly sunny

16° 💧 None 💨 14 km/h H 76%1021 hPa

2:30 PM

Mostly sunny

16° 💧 None 💨 14 km/h H 75%1020 hPa

3:30 PM

Mostly cloudy

16° 💧 None 💨 13 km/h H 76%1020 hPa

4:30 PM

Overcast

16° 💧 None 💨 13 km/h H 75%1019 hPa

5:30 PM

Overcast

16° 💧 None 💨 13 km/h H 73%1019 hPa

6:30 PM

Mostly cloudy night

16° 💧 None 💨 14 km/h H 73%1019 hPa

7:30 PM

Overcast night

16° 💧 None 💨 16 km/h H 71%1019 hPa

8:30 PM

Overcast night

16° 💧 None 💨 18 km/h H 70%1019 hPa

9:30 PM

Overcast night

17° 💧 None 💨 20 km/h H 68%1019 hPa

10:30 PM

Mostly cloudy night

17° 💧 None 💨 20 km/h H 66%1018 hPa

11:30 PM

Partly cloudy night

17° 💧 None 💨 22 km/h H 68%1017 hPa

Sunday

12:30 AM

Mostly clear night

17° 💧 None 💨 26 km/h H 69%1016 hPa

1:30 AM

Partly cloudy night

17° 💧 None 💨 26 km/h H 74%1015 hPa

2:30 AM

Mostly clear night

16° 💧 None 💨 23 km/h H 75%1015 hPa

3:30 AM

Clear night

17° 💧 None 💨 24 km/h H 70%1013 hPa

4:30 AM

Mostly clear night

17° 💧 None 💨 26 km/h H 67%1013 hPa

5:30 AM

Overcast night

17° 💧 None 💨 25 km/h H 67%1013 hPa

6:30 AM

Moderate rain

16° 💧 2.6 mm 💨 20 km/h H 82%1015 hPa

7:30 AM

Light rain

15° 💧 1.5 mm 💨 13 km/h H 85%1015 hPa

8:30 AM

Moderate rain

15° 💧 3.3 mm 💨 17 km/h H 88%1015 hPa

9:30 AM

Moderate rain

15° 💧 5.7 mm 💨 14 km/h H 90%1015 hPa

10:30 AM

Moderate rain

15° 💧 3.6 mm 💨 19 km/h H 90%1015 hPa

11:30 AM

Light rain

16° 💧 0.3 mm 💨 19 km/h H 89%1014 hPa

12:30 PM

Light rain

17° 💧 0.2 mm 💨 23 km/h H 86%1014 hPa

1:30 PM

Sunny

18° 💧 0.1 mm 💨 25 km/h H 77%1013 hPa

2:30 PM

Mostly sunny

18° 💧 0.1 mm 💨 23 km/h H 75%1014 hPa

3:30 PM

Light rain

18° 💧 0.2 mm 💨 17 km/h H 76%1014 hPa

4:30 PM

Light rain

17° 💧 0.2 mm 💨 18 km/h H 80%1015 hPa

5:30 PM

Mostly sunny

16° 💧 0.0 mm 💨 16 km/h H 84%1016 hPa

6:30 PM

Mostly clear night

15° 💧 None 💨 16 km/h H 86%1017 hPa

7:30 PM

Mostly clear night

15° 💧 0.0 mm 💨 17 km/h H 87%1018 hPa

8:30 PM

Clear night

14° 💧 None 💨 16 km/h H 87%1019 hPa

9:30 PM

Clear night

13° 💧 None 💨 12 km/h H 90%1019 hPa

Monday

12:30 AM

Mostly clear night

11° 💧 None 💨 9 km/h H 93%1019 hPa

3:30 AM

Mostly clear night

12° 💧 None 💨 7 km/h H 92%1019 hPa

6:30 AM

Overcast

12° 💧 None 💨 10 km/h H 92%1021 hPa

9:30 AM

Overcast

15° 💧 None 💨 17 km/h H 73%1022 hPa

12:30 PM

Mostly cloudy

16° 💧 None 💨 9 km/h H 65%1021 hPa

3:30 PM

Mostly cloudy

17° 💧 None 💨 15 km/h H 70%1021 hPa

6:30 PM

Mostly clear night

15° 💧 None 💨 13 km/h H 80%1023 hPa

9:30 PM

Clear night

14° 💧 None 💨 18 km/h H 85%1025 hPa

Tuesday

12:30 AM

Mostly clear night

12° 💧 None 💨 17 km/h H 70%1027 hPa

3:30 AM

Mostly clear night

13° 💧 None 💨 21 km/h H 68%1027 hPa

6:30 AM

Mostly cloudy

13° 💧 None 💨 25 km/h H 56%1030 hPa

9:30 AM

Mostly cloudy

13° 💧 None 💨 27 km/h H 55%1033 hPa

12:30 PM

Mostly cloudy

13° 💧 None 💨 24 km/h H 55%1034 hPa

3:30 PM

Partly cloudy

13° 💧 None 💨 21 km/h H 54%1034 hPa

6:30 PM

Mostly cloudy night

13° 💧 None 💨 17 km/h H 56%1035 hPa

9:30 PM

Overcast night

12° 💧 None 💨 15 km/h H 60%1037 hPa

Wednesday

12:30 AM

Overcast night

12° 💧 None 💨 14 km/h H 62%1037 hPa

3:30 AM

Overcast night

12° 💧 None 💨 13 km/h H 64%1036 hPa

6:30 AM

Overcast

11° 💧 None 💨 10 km/h H 66%1037 hPa

9:30 AM

Overcast

13° 💧 None 💨 12 km/h H 59%1038 hPa

12:30 PM

Overcast

13° 💧 None 💨 12 km/h H 63%1037 hPa

3:30 PM

Overcast

13° 💧 None 💨 14 km/h H 66%1036 hPa

9:30 PM

Overcast night

13° 💧 None 💨 13 km/h H 70%1035 hPa

Thursday

3:30 AM

Mostly clear night

11° 💧 None 💨 10 km/h H 77%1036 hPa

9:30 AM

Sunny

10° 💧 None 💨 13 km/h H 82%1032 hPa

3:30 PM

Sunny

13° 💧 None 💨 16 km/h H 73%1032 hPa

9:30 PM

Clear night

14° 💧 None 💨 15 km/h H 71%1028 hPa

Friday

3:30 AM

Clear night

13° 💧 None 💨 12 km/h H 76%1027 hPa

9:30 AM

Sunny

15° 💧 None 💨 24 km/h H 78%1023 hPa

3:30 PM

Sunny

15° 💧 None 💨 25 km/h H 77%1024 hPa

9:30 PM

Clear night

18° 💧 None 💨 24 km/h H 66%1019 hPa

Saturday

3:30 AM

Clear night

18° 💧 None 💨 29 km/h H 55%1019 hPa

9:30 AM

Sunny

17° 💧 None 💨 29 km/h H 54%1016 hPa

3:30 PM

Mostly sunny

19° 💧 None 💨 18 km/h H 60%1020 hPa

9:30 PM

Clear night

19° 💧 None 💨 7 km/h H 70%1020 hPa

Sunday

3:30 AM

Moderate rain

14° 💧 None 💨 11 km/h H 95%1022 hPa

9:30 AM

Overcast

13° 💧 None 💨 8 km/h H 97%1020 hPa

3:30 PM

Overcast

15° 💧 None 💨 3 km/h H 88%1022 hPa

9:30 PM

Clear night

19° 💧 None 💨 7 km/h H 70%1021 hPa

Monday

3:30 AM

Clear night

13° 💧 None 💨 13 km/h H 77%1025 hPa

9:30 AM

Partly cloudy

11° 💧 None 💨 8 km/h H 92%1025 hPa

3:30 PM

Overcast

14° 💧 None 💨 14 km/h H 68%1030 hPa

9:30 PM

Clear night

14° 💧 None 💨 13 km/h H 60%1028 hPa

Tuesday

3:30 AM

Clear night

11° 💧 None 💨 14 km/h H 76%1029 hPa

9:30 AM

Mostly cloudy

12° 💧 None 💨 14 km/h H 86%1025 hPa

3:30 PM

Overcast

15° 💧 None 💨 20 km/h H 75%1025 hPa

9:30 PM

Mostly cloudy night

17° 💧 None 💨 17 km/h H 75%1020 hPa

Wednesday

3:30 AM

Partly cloudy night

19° 💧 None 💨 32 km/h H 65%1019 hPa

9:30 AM

Overcast

19° 💧 None 💨 26 km/h H 64%1015 hPa

3:30 PM

Overcast

19° 💧 None 💨 27 km/h H 61%1017 hPa

9:30 PM

Mostly cloudy night

20° 💧 None 💨 22 km/h H 64%1013 hPa

Thursday

3:30 AM

Mostly cloudy night

19° 💧 None 💨 15 km/h H 72%1015 hPa

9:30 AM

Overcast

16° 💧 None 💨 10 km/h H 92%1014 hPa

3:30 PM

Overcast

15° 💧 None 💨 21 km/h H 89%1019 hPa

9:30 PM

Moderate rain

13° 💧 None 💨 17 km/h H 85%1021 hPa

Friday

3:30 AM

Overcast night

13° 💧 None 💨 26 km/h H 64%1026 hPa

9:30 AM

Partly cloudy

12° 💧 None 💨 24 km/h H 64%1027 hPa

3:30 PM

Light rain

12° 💧 None 💨 23 km/h H 71%1032 hPa

In Nepean Bay and, more broadly, across South Australia: This morning, the sky is clear with mild temperatures ranging from 10 degrees Celsius to 22 degrees Celsius. Winds are coming in from the east, generally moderate at around 15 km/h, with gusts reaching up to 27 km/h. Throughout the day, conditions are expected to remain dry, with no precipitation forecast. Temperatures are likely to stay steady, making for a comfortable day. The moderate easterly winds may pick up slightly in the afternoon but are unlikely to cause any significant disturbances. Overall, it looks like a fine day with clear skies and mild weather conditions.

15-Day Weather Outlook for Nepean Bay

Friday, Sep 11Fri Sep 11

Mostly sunny 16°/13° 💧 None 💨 18 km/h

TomorrowTomorrow

Mostly sunny 17°/15° 💧 None 💨 25 km/h

Sunday, Sep 13Sun Sep 13

Light rain 16°/11° 💧 9.7 mm 💨 20 km/h

Monday, Sep 14Mon Sep 14

Mostly cloudy 17°/12° 💧 0.2 mm 💨 25 km/h

Tuesday, Sep 15Tue Sep 15

Mostly cloudy 13°/11° 💧 None 💨 27 km/h

Wednesday, Sep 16Wed Sep 16

Overcast 13°/11° 💧 0.3 mm 💨 14 km/h

Thursday, Sep 17Thu Sep 17

Sunny 14°/10° 💧 None 💨 16 km/h

Friday, Sep 18Fri Sep 18

Sunny 18°/15° 💧 None 💨 29 km/h

Saturday, Sep 19Sat Sep 19

Moderate rain 19°/14° 💧 2.4 mm 💨 29 km/h

Sunday, Sep 20Sun Sep 20

Overcast 19°/13° 💧 5.7 mm 💨 13 km/h

Monday, Sep 21Mon Sep 21

Partly cloudy 14°/11° 💧 None 💨 14 km/h

Tuesday, Sep 22Tue Sep 22

Mostly cloudy 19°/12° 💧 None 💨 32 km/h

Wednesday, Sep 23Wed Sep 23

Overcast 20°/19° 💧 0.2 mm 💨 27 km/h

Thursday, Sep 24Thu Sep 24

Moderate rain 16°/13° 💧 12 mm 💨 26 km/h

Friday, Sep 25Fri Sep 25

Light rain 12°/12° 💧 1.3 mm 💨 24 km/h

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Nepean Bay

Vertical axis: °C · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Nepean Bay

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 5:30 AM

PM2.5 Fine particles Good 2,3µg/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 9,1µg/m³

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

O₃ Ozone Fair 62,6µg/m³

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

NO₂ Nitrogen dioxide Good 0,4µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Nepean Bay

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 6,4High 🙂Fair

Tomorrow UV 6,6High 🙂Fair

Sunday UV 6,4High 🙂Fair

Monday UV 3,9Moderate 🙂Fair

Tuesday UV 5,0Moderate 🙂Fair

Wednesday UV 5,0Moderate —Unavailable

Thursday UV 6,0High —Unavailable

Hourly UV index today

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

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

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 Forecast for Nepean Bay

Vertical axis: km/h · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · NEPEAN BAY, SOUTH AUSTRALIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:30 AM–6:30 AM.

97/100Best-hour score

BEST TIME TONIGHT 5:30 AM–6:30 AM Astronomical darkness: 7:30 PM–5:00 AM

☁ Cloud cover 0% 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.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Nepean Bay were last refreshed today at 4:23 AM. The current forecast period extends through 13/09/2026 at 2:30 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.