
The average mean temperature in January ranges from 53-59 degrees F summers are a little warmer with an average mean temperature in July that ranges from 62-70 degrees F. Unfortunately data collected from these stations has been irregular so that the historic weather analysis provided below is derived from other published records of Channel Islands climate data.ĭecember-March are the coolest months and July-October the hottest months in the Channel Islands. Historic data from San Miguel Island are also located at the WRCC website.

Current and historic data from these stations are available at the Western Regional Climate Center (WRCC) website. There are currently five Remote Automated Weather Stations (RAWS) stations at Channel Islands National Park. In the Köppen system of climate classification this is a cool Mediterranean climate (Csb) or a Mediterranean Dry Summer Subtropical climate type, with a cool summer regime. On the Channel Islands the climate is moderated by the marine influence with the result that summers are milder, there is generally higher humidity, and there is more frequent nocturnal fog compared to the mainland.

These climate regions occur in only five locations throughout the world including parts of California, along the Mediterranean Sea, central Chile, parts of southwestern Western and South Australia, and the southwestern Cape region of South Africa. This climate type is characterized by cool, wet winters with average annual rainfall of 8-40” and hot, dry summers. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.Channel Islands National Park has a Mediterranean-type climate. On bright days sunglasses that block both UVA and UVB rays should be worn. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Take precautions - Protection against sunburn is recommended. Note: The average daily UV index of 4 in October transform into the following instructions: A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals. UV indexIn October, the average daily maximum UV index in Santa Cruz is 4. SunshineIn Santa Cruz, California, the average sunshine in October is 7h. On the last day of October, in Santa Cruz, sunrise is at 7:31 am and sunset at 6:11 pm PDT. On the first day of the month, sunrise is at 7:03 am and sunset at 6:51 pm.

DaylightIn Santa Cruz, the average length of the day in October is 11h and 14min. Unprotected immersion in temperatures below 50☏ (10☌) causes quickly maximum intensity cold shock with hyperventilation. Note: Swimming in 57.6☏ (14.2☌) is considered dangerous. Ocean temperatureIn October, the average ocean temperature is 57.6☏ (14.2☌). In Santa Cruz, during the entire year, the rain falls for 77.9 days and collects up to 14.45" (367mm) of precipitation. Rainfall In Santa Cruz, during October, the rain falls for 4.5 days and regularly aggregates up to 0.47" (12mm) of precipitation. HumidityThe least humid month is October, with an average relative humidity of 68%.

The average low-temperature, in Santa Cruz, California, is 53.8☏ (12.1☌). TemperatureIn Santa Cruz, the average high-temperature in October is essentially the same as in September - a still pleasant 69.4☏ (20.8☌). October, the same as September, in Santa Cruz, California, is an agreeable autumn month, with an average temperature ranging between max 69.4☏ (20.8☌) and min 53.8☏ (12.1☌).
