Santa Catalina Island Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Santa Catalina Island, the United States of America in September.

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Avalon

Planning a getaway to Santa Catalina Island, the United States of America this September and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Santa Catalina Island in September

Santa Catalina Island, the United States of America is a region in the United States of America. September in Santa Catalina Island generally has warm temperatures, with almost no precipitation.

Temperatures

You can expect warm maximum daytime temperatures of around 25°C (77°F) and nighttime temperatures around 17°C (63°F) in Avalon. On average, September is the month with the highest temperature of the year in Santa Catalina Island, the United States of America.

To explore the conditions in Santa Catalina Island, the United States of America in more detail, check the map below.

Precipitation

September is a very dry month with an average rainfall of around 4.1 mm (0.2 in) in Avalon.

Average sunshine

Plenty of sunshine can be expected in numerous places in September. Avalon typically receives 278 hours of sunlight, making it ideal for those seeking sunny weather.

Explore Santa Catalina Island by month

Pick a month to see the average temperature, rainfall and sunshine in Santa Catalina Island — and find the best time to visit. (based on Avalon)

January18°C (64°F) February18°C (64°F) March19°C (66°F) April20°C (68°F) May20°C (68°F) June23°C (73°F) This monthJuly24°C (75°F) August25°C (77°F) September25°C (77°F) October23°C (73°F) November21°C (70°F) December17°C (63°F)
Best Time to Visit Santa Catalina Island →

Best Places to Visit in Santa Catalina Island in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Santa Catalina Island.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Santa Catalina Island

What is the weather like in September for the most popular destinonation in Santa Catalina Island, the United States of America?

Avalon

In September Avalon generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 17°C (63°F) and almost no monthly rainfall. So on average the conditions are perfect that month.

« August
September
October »
August
September
October
Max temperature
25°C (77°F)
25°C (77°F)
23°C (73°F)
Min temperature
18°C (64°F)
17°C (63°F)
15°C (59°F)
Monthly sun hours
347 hours
278 hours
255 hours
Monthly rainfall
0.1 mm (0 in)
4.1 mm (0.2 in)
10 mm (0.4 in)
Monthly rainy days
0 days
a single day
3 days
Weather conditions
perfect
perfect
perfect
Climate in Avalon →

Is your destination not in the list? Have a look at all destinations in Santa Catalina Island, in the United States of America.

Santa Catalina Island weather in September: frequently asked questions

What is the weather like in Santa Catalina Island, the United States of America in September?

Santa Catalina Island, the United States of America typically experiences perfect weather in September, part of the season. Daytime highs in Avalon average around 25°C (77°F), and temperatures drop to about 17°C (63°F) at night.

What is the average temperature in Santa Catalina Island, the United States of America in September?

In Avalon, the average daytime high in September is 25°C (77°F), while nighttime temperatures drop to around 17°C (63°F).

Does Santa Catalina Island, the United States of America get a lot of rain in September?

Not particularly. Avalon averages just 4.1 mm (0.2 in) of rain in September, making it a mostly dry month for Santa Catalina Island, the United States of America.

Is September a Good Time to Visit Santa Catalina Island, the United States of America?

We believe that September is one of the best times to visit Santa Catalina Island, the United States of America with overall perfect weather in Avalon. However, the weather conditions may vary depending on your destination.

On average, the best time to visit Santa Catalina Island, the United States of America is in March, April, May, June, July, August, September, October and November with generally perfect weather in Avalon. The weather in December, on the other hand, tends to be tolerable.

Interested in more climate information?

We have much more information about the climate in Santa Catalina Island.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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