Weather in Santa Catalina Island: July
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Average day temperature: | 73.4°F |
| Average night temperature: | 66.1°F | |
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Sea water temperature: | 68.7°F |
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Number of sunny days: | 23 days |
| Day length: | 13.8 - 14.3 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.0 in. | |
| more information | ||
forecast
| Santa Catalina Island |
temperature
| Santa Catalina Island |
Air temperature in July, °F
The highest day temperature during July of 2026 was 86°F. At the same time the lowest night temperature was 54°F. Daily and nightly averages during July were 74.2°F and 61.2°F.
Sea water temperature in Santa Catalina Island in July, °F
The average sea water temperature in July of 2026 was 69.6°F. The highest and lowest sea temperatures during the month were 73.0°F and 66.7°F.
Mostly all days in July are sunny but cloudy days are also possible.
Precipitation total in July, in.
Precipitation total value in Santa Catalina Island in July is 0.0 in. Other months of the year show relatively similar values.
The average wind speed value in July is 6.8 mph
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in July is: 10.8.
Best time for vacation in Santa Catalina Island
Santa Catalina Island on a weather map
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