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United States weather

Weather in Santa Catalina Island, California for May 2026

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

    Temperatures

  • In general, the average temperature in Santa Catalina Island at the beginning of May is 13.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 17 °F by the end of May.

    • Rain 🌧️

  • With an average of 4 rainy days, Santa Catalina Island experiences minimal rainfall in May.

    • More

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Average dry days
27
Dry days
Average rainy days
4
Rainy days
Average snowy days
0
Snow days
Average temperatures
16°/12°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
89 %
Avg humidity

Santa Catalina Island Weather May

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

Temperatures trend during May in Santa Catalina Island

See the weather trend as well as the moving average line

May weather in Santa Catalina Island day by day

Click on a date for more information
April June
Date Weather Temperatures Rain UV More
May 1 Overcast
Overcast
 14° /11° 0 mm 2
May 2 Overcast
Overcast
 14° /11° 0 mm 2
May 3 Patchy rain possible
Patchy rain possible
 13° /11° 0.9 mm 2
May 4 Patchy rain possible
Patchy rain possible
 14° /11° 0.7 mm 5
May 5 Patchy rain possible
Patchy rain possible
 14° /11° 0.1 mm 2
May 6 Patchy rain possible
Patchy rain possible
 14° /12° 0.4 mm 2
May 7 Overcast
Overcast
 14° /12° 0 mm 3
May 8 Overcast
Overcast
 15° /11° 0 mm 2
May 9 Overcast
Overcast
 20° /12° 0 mm 2
May 10 Overcast
Overcast
 22° /13° 0 mm 3
May 11 Overcast
Overcast
 19° /13° 0 mm 3
May 12 Overcast
Overcast
 15° /12° 0 mm 6
May 13 Patchy rain possible
Patchy rain possible
 14° /11° 0.1 mm 3
May 14 Cloudy
Cloudy
 15° /11° 0 mm 6
May 15 Overcast
Overcast
 16° /11° 0 mm 2
May 16 Overcast
Overcast
 14° /11° 0 mm 2
May 17 Patchy rain possible
Patchy rain possible
 13° /12° 2.2 mm 2
May 18 Overcast
Overcast
 15° /12° 0 mm 4
May 19 Overcast
Overcast
 18° /11° 0 mm 5
May 20 Overcast
Overcast
 19° /12° 0 mm 3
May 21 Overcast
Overcast
 21° /12° 0 mm 2
May 22 Overcast
Overcast
 20° /11° 0 mm 2
May 23 Overcast
Overcast
 16° /12° 0 mm 2
May 24 Overcast
Overcast
 15° /12° 0 mm 2
May 25 Mist
Mist
 16° /12° 0 mm 2
May 26 Mist
Mist
 16° /13° 0 mm 2
May 27 Fog
Fog
 16° /13° 0 mm 4
May 28 Overcast
Overcast
 17° /14° 0 mm 2
May 29 Fog
Fog
 17° /13° 0 mm 4
May 30 Fog
Fog
 17° /13° 0 mm 3
May 31 Fog
Fog
 20° /13° 0 mm 3
Next
Important Notice
Our weather forecast for Santa Catalina Island in May 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.
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Santa Catalina Island in May - FAQ

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

Enjoy moderate daytime temperatures of up to 16° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

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

Rainfall in Santa Catalina Island during May is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 4 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 May?

The average wind speed in Santa Catalina Island during May is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

May rainfall patterns in Santa Catalina Island

Explore the daily rainfall trends and prepare for Santa Catalina Islands May weather 💧
Typically, Santa Catalina Island has 4 rainy days in May with a total of 4.4 mm of rainfall.

UV exposure in Santa Catalina Island during May

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

Quick links

More Santa Catalina Island weather pages
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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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