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United States weather

Weather in Santa Catalina Island, California for August 2026

Your guide to Santa Catalina Island weather in August - trends and predictions

    Temperatures

  • In general, the average temperature in Santa Catalina Island at the beginning of August is 19 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 20.1 °F by the end of August.

    • Rain 🌧️

  • Precipitation in Santa Catalina Island during August is a rare event, with an average of fewer than 2 rainy days.

    • More

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Average dry days
31
Dry days
Average rainy days
0
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/16°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
90 %
Avg humidity

Santa Catalina Island Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Fog
19°
2
Fog
18°
3
Fog
18°
4
Fog
19°
5
Fog
20°
6
Fog
19°
7
Fog
20°
8
Mist
19°
9
Fog
19°
10
Fog
19°
11
Fog
19°
12
Fog
19°
13
Fog
18°
14
Mist
19°
15
Fog
20°
16
Overcast
19°
17
Mist
20°
18
Fog
20°
19
Fog
19°
20
Fog
20°
21
Fog
20°
22
Fog
20°
23
Fog
21°
24
Fog
21°
25
Fog
20°
26
Fog
19°
27
Fog
18°
28
Overcast
20°
29
Mist
22°
30
Fog
21°
31
Fog
21°

Temperatures trend during August in Santa Catalina Island

See the weather trend as well as the moving average line

August weather in Santa Catalina Island day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Fog
Fog
 19° /15° 0 mm 3
Aug. 2 Fog
Fog
 18° /15° 0 mm 3
Aug. 3 Fog
Fog
 18° /15° 0 mm 3
Aug. 4 Fog
Fog
 19° /15° 0 mm 5
Aug. 5 Fog
Fog
 20° /15° 0 mm 5
Aug. 6 Fog
Fog
 19° /15° 0 mm 6
Aug. 7 Fog
Fog
 20° /15° 0 mm 5
Aug. 8 Mist
Mist
 19° /15° 0 mm 5
Aug. 9 Fog
Fog
 19° /15° 0 mm 2
Aug. 10 Fog
Fog
 19° /15° 0 mm 3
Aug. 11 Fog
Fog
 19° /16° 0 mm 2
Aug. 12 Fog
Fog
 19° /16° 0 mm 3
Aug. 13 Fog
Fog
 18° /15° 0 mm 2
Aug. 14 Mist
Mist
 19° /16° 0 mm 3
Aug. 15 Fog
Fog
 20° /15° 0 mm 2
Aug. 16 Overcast
Overcast
 19° /16° 0 mm 3
Aug. 17 Mist
Mist
 20° /17° 0 mm 5
Aug. 18 Fog
Fog
 20° /15° 0 mm 5
Aug. 19 Fog
Fog
 19° /16° 0 mm 5
Aug. 20 Fog
Fog
 20° /15° 0 mm 5
Aug. 21 Fog
Fog
 20° /16° 0 mm 4
Aug. 22 Fog
Fog
 20° /19° 0 mm 4
Aug. 23 Fog
Fog
 21° /18° 0 mm 2
Aug. 24 Fog
Fog
 21° /16° 0 mm 4
Aug. 25 Fog
Fog
 20° /18° 0 mm 3
Aug. 26 Fog
Fog
 19° /15° 0 mm 3
Aug. 27 Fog
Fog
 18° /16° 0 mm 2
Aug. 28 Overcast
Overcast
 20° /16° 0 mm 3
Aug. 29 Mist
Mist
 22° /17° 0 mm 11
Aug. 30 Fog
Fog
 21° /17° 0 mm 5
Aug. 31 Fog
Fog
 21° /18° 0 mm 3
Next
Important Notice
Our weather forecast for Santa Catalina Island in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Santa Catalina Island forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Santa Catalina Island in August - FAQ

What are the expected maximum and minimum temperatures in Santa Catalina Island during August?

During August, expect a variety of temperatures with highs around 20° and lows near 16°, suitable for diverse activities and preferences.

How much rainfall should be expected in Santa Catalina Island during August?

Rainfall in Santa Catalina Island during August is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.

What are the typical wind conditions in Santa Catalina Island during August?

The average wind speed in Santa Catalina Island during August is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

UV exposure in Santa Catalina Island during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

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Location coordinates Where is Santa Catalina Island?

Get accurate weather forecasts for Santa Catalina Island, located at latitude 33.383 and longitude -118.418. Stay updated with localized weather information tailored for Santa Catalina Island.

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